diff options
Diffstat (limited to 'src/lib/ffi/ffi.cpp')
| -rw-r--r-- | src/lib/ffi/ffi.cpp | 2307 |
1 files changed, 6 insertions, 2301 deletions
diff --git a/src/lib/ffi/ffi.cpp b/src/lib/ffi/ffi.cpp index f13ab7b83..28eac401a 100644 --- a/src/lib/ffi/ffi.cpp +++ b/src/lib/ffi/ffi.cpp @@ -5,126 +5,13 @@ */ #include <botan/ffi.h> -#include <botan/system_rng.h> -#include <botan/exceptn.h> -#include <botan/auto_rng.h> -#include <botan/aead.h> -#include <botan/block_cipher.h> -#include <botan/hash.h> -#include <botan/mac.h> -#include <botan/pbkdf.h> +#include <botan/internal/ffi_util.h> #include <botan/version.h> -#include <botan/pkcs8.h> -#include <botan/x509cert.h> -#include <botan/data_src.h> -#include <botan/pubkey.h> -#include <botan/hex.h> #include <botan/mem_ops.h> -#include <botan/x509_key.h> -#include <botan/pk_algs.h> -#include <botan/bigint.h> -#include <botan/reducer.h> -#include <botan/numthry.h> -#include <botan/divide.h> -#include <cstring> -#include <memory> - -#if defined(BOTAN_HAS_RSA) - #include <botan/rsa.h> -#endif - -#if defined(BOTAN_HAS_ELGAMAL) - #include <botan/elgamal.h> -#endif - -#if defined(BOTAN_HAS_DSA) - #include <botan/dsa.h> -#endif - -#if defined(BOTAN_HAS_ECDSA) - #include <botan/ecdsa.h> -#endif - -#if defined(BOTAN_HAS_SM2) - #include <botan/sm2.h> -#endif - -#if defined(BOTAN_HAS_ECC_PUBLIC_KEY_CRYPTO) - #include <botan/ecc_key.h> -#endif - -#if defined(BOTAN_HAS_DL_PUBLIC_KEY_FAMILY) - #include <botan/dl_algo.h> -#endif - -#if defined(BOTAN_HAS_ECDH) - #include <botan/ecdh.h> -#endif - -#if defined(BOTAN_HAS_CURVE_25519) - #include <botan/curve25519.h> -#endif - -#if defined(BOTAN_HAS_ED25519) - #include <botan/ed25519.h> -#endif - -#if defined(BOTAN_HAS_MCELIECE) - #include <botan/mceliece.h> -#endif - -#if defined(BOTAN_HAS_MCEIES) - #include <botan/mceies.h> -#endif - -#if defined(BOTAN_HAS_BCRYPT) - #include <botan/bcrypt.h> -#endif - -#if defined(BOTAN_HAS_HASH_ID) - #include <botan/hash_id.h> -#endif - -#if defined(BOTAN_HAS_TLS) - #include <botan/tls_client.h> - #include <botan/tls_server.h> -#endif - -#if defined(BOTAN_HAS_RFC3394_KEYWRAP) - #include <botan/rfc3394.h> -#endif - -namespace { - -#define BOTAN_ASSERT_ARG_NON_NULL(p) \ - do { if(!p) throw Botan::Invalid_Argument("Argument " #p " is null"); } while(0) - -class FFI_Error : public Botan::Exception - { - public: - explicit FFI_Error(const std::string& what) : Exception("FFI error", what) {} - }; - -template<typename T, uint32_t MAGIC> -struct botan_struct - { - public: - botan_struct(T* obj) : m_magic(MAGIC), m_obj(obj) {} - ~botan_struct() { m_magic = 0; m_obj.reset(); } - - bool magic_ok() const { return (m_magic == MAGIC); } +#include <botan/hex.h> +#include <cstdio> - T* get() const - { - if(magic_ok() == false) - throw FFI_Error("Bad magic " + std::to_string(m_magic) + - " in ffi object expected " + std::to_string(MAGIC)); - return m_obj.get(); - } - private: - uint32_t m_magic = 0; - std::unique_ptr<T> m_obj; - }; +namespace Botan_FFI { int ffi_error_exception_thrown(const char* func_name, const char* exn) { @@ -132,332 +19,11 @@ int ffi_error_exception_thrown(const char* func_name, const char* exn) return BOTAN_FFI_ERROR_EXCEPTION_THROWN; } -template<typename T, uint32_t M> -T& safe_get(botan_struct<T,M>* p) - { - if(!p) - throw FFI_Error("Null pointer argument"); - if(T* t = p->get()) - return *t; - throw FFI_Error("Invalid object pointer"); - } - -template<typename T, uint32_t M> -const T& safe_get(const botan_struct<T,M>* p) - { - if(!p) - throw FFI_Error("Null pointer argument"); - if(const T* t = p->get()) - return *t; - throw FFI_Error("Invalid object pointer"); - } - -template<typename Thunk> -int ffi_guard_thunk(const char* func_name, Thunk thunk) - { - try - { - return thunk(); - } - catch(std::bad_alloc) - { - return ffi_error_exception_thrown(func_name, "bad_alloc"); - } - catch(std::exception& e) - { - return ffi_error_exception_thrown(func_name, e.what()); - } - catch(...) - { - return ffi_error_exception_thrown(func_name, "unknown exception"); - } - - return BOTAN_FFI_ERROR_UNKNOWN_ERROR; - } - -#define BOTAN_GUARD_BLOCK(b) ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, []() t)) - -template<typename T, uint32_t M, typename F> -int apply_fn(botan_struct<T, M>* o, const char* func_name, F func) - { - try - { - if(!o) - throw FFI_Error("Null object to " + std::string(func_name)); - if(T* t = o->get()) - return func(*t); - } - catch(std::bad_alloc) - { - return ffi_error_exception_thrown(func_name, "bad_alloc"); - } - catch(std::exception& e) - { - return ffi_error_exception_thrown(func_name, e.what()); - } - catch(...) - { - return ffi_error_exception_thrown(func_name, "unknown exception"); - } - - return BOTAN_FFI_ERROR_UNKNOWN_ERROR; - } - -#define BOTAN_FFI_DO(T, obj, param, block) \ - apply_fn(obj, BOTAN_CURRENT_FUNCTION, \ - [=](T& param) -> int { do { block } while(0); return BOTAN_FFI_SUCCESS; }) - -template<typename T, uint32_t M> -int ffi_delete_object(botan_struct<T, M>* obj, const char* func_name) - { - try - { - if(obj == nullptr) - return BOTAN_FFI_SUCCESS; // ignore delete of null objects - - if(obj->magic_ok() == false) - return BOTAN_FFI_ERROR_INVALID_INPUT; - - delete obj; - return BOTAN_FFI_SUCCESS; - } - catch(std::exception& e) - { - return ffi_error_exception_thrown(func_name, e.what()); - } - catch(...) - { - return ffi_error_exception_thrown(func_name, "unknown exception"); - } - } - -#define BOTAN_FFI_CHECKED_DELETE(o) ffi_delete_object(o, BOTAN_CURRENT_FUNCTION) - -inline int write_output(uint8_t out[], size_t* out_len, const uint8_t buf[], size_t buf_len) - { - const size_t avail = *out_len; - *out_len = buf_len; - - if(avail >= buf_len) - { - Botan::copy_mem(out, buf, buf_len); - return BOTAN_FFI_SUCCESS; - } - else - { - Botan::clear_mem(out, avail); - return BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE; - } - } - -template<typename Alloc> -int write_vec_output(uint8_t out[], size_t* out_len, const std::vector<uint8_t, Alloc>& buf) - { - return write_output(out, out_len, buf.data(), buf.size()); - } - -inline int write_str_output(uint8_t out[], size_t* out_len, const std::string& str) - { - return write_output(out, out_len, - reinterpret_cast<const uint8_t*>(str.c_str()), - str.size() + 1); - } - -inline int write_str_output(char out[], size_t* out_len, const std::string& str) - { - return write_str_output(reinterpret_cast<uint8_t*>(out), out_len, str); - } - -inline int write_str_output(char out[], size_t* out_len, const std::vector<uint8_t>& str_vec) - { - return write_output(reinterpret_cast<uint8_t*>(out), out_len, - reinterpret_cast<const uint8_t*>(str_vec.data()), - str_vec.size()); - } - -Botan::BigInt pubkey_get_field(const Botan::Public_Key& key, - const std::string& field) - { - // Maybe this should be `return key.get_integer_field(field_name)`? - -#if defined(BOTAN_HAS_RSA) - if(const Botan::RSA_PublicKey* rsa = dynamic_cast<const Botan::RSA_PublicKey*>(&key)) - { - if(field == "n") - return rsa->get_n(); - else if(field == "e") - return rsa->get_e(); - else - throw Botan::Exception("Field not supported"); - } -#endif - -#if defined(BOTAN_HAS_DL_PUBLIC_KEY_FAMILY) - // Handles DSA, ElGamal, etc - if(const Botan::DL_Scheme_PublicKey* dl = dynamic_cast<const Botan::DL_Scheme_PublicKey*>(&key)) - { - if(field == "p") - return dl->group_p(); - else if(field == "q") - return dl->group_q(); - else if(field == "g") - return dl->group_g(); - else if(field == "y") - return dl->get_y(); - else - throw Botan::Exception("Field not supported"); - } -#endif - -#if defined(BOTAN_HAS_ECC_PUBLIC_KEY_CRYPTO) - if(const Botan::EC_PublicKey* ecc = dynamic_cast<const Botan::EC_PublicKey*>(&key)) - { - if(field == "public_x") - return ecc->public_point().get_affine_x(); - else if(field == "public_y") - return ecc->public_point().get_affine_y(); - else if(field == "base_x") - return ecc->domain().get_base_point().get_affine_x(); - else if(field == "base_y") - return ecc->domain().get_base_point().get_affine_y(); - else if(field == "p") - return ecc->domain().get_curve().get_p(); - else if(field == "a") - return ecc->domain().get_curve().get_a(); - else if(field == "b") - return ecc->domain().get_curve().get_b(); - else if(field == "cofactor") - return ecc->domain().get_cofactor(); - else if(field == "order") - return ecc->domain().get_order(); - else - throw Botan::Exception("Field not supported"); - } -#endif - - // Some other algorithm type not supported by this function - throw Botan::Exception("Unsupported algorithm type for botan_pubkey_get_field"); - } - -Botan::BigInt privkey_get_field(const Botan::Private_Key& key, - const std::string& field) - { - //return key.get_integer_field(field); - -#if defined(BOTAN_HAS_RSA) - - if(const Botan::RSA_PrivateKey* rsa = dynamic_cast<const Botan::RSA_PrivateKey*>(&key)) - { - if(field == "p") - return rsa->get_p(); - else if(field == "q") - return rsa->get_q(); - else if(field == "d") - return rsa->get_d(); - else if(field == "c") - return rsa->get_c(); - else if(field == "d1") - return rsa->get_d1(); - else if(field == "d2") - return rsa->get_d2(); - else - return pubkey_get_field(key, field); - } -#endif - -#if defined(BOTAN_HAS_DL_PUBLIC_KEY_FAMILY) - // Handles DSA, ElGamal, etc - if(const Botan::DL_Scheme_PrivateKey* dl = dynamic_cast<const Botan::DL_Scheme_PrivateKey*>(&key)) - { - if(field == "x") - return dl->get_x(); - else - return pubkey_get_field(key, field); - } -#endif - -#if defined(BOTAN_HAS_ECC_PUBLIC_KEY_CRYPTO) - if(const Botan::EC_PrivateKey* ecc = dynamic_cast<const Botan::EC_PrivateKey*>(&key)) - { - if(field == "x") - return ecc->private_value(); - else - return pubkey_get_field(key, field); - } -#endif - - // Some other algorithm type not supported by this function - throw Botan::Exception("Unsupported algorithm type for botan_privkey_get_field"); - } - -#if defined(BOTAN_HAS_ECC_PUBLIC_KEY_CRYPTO) - -// These are always called within an existing try/catch block - -template<class ECPrivateKey_t> -int privkey_load_ec(std::unique_ptr<ECPrivateKey_t>& key, - const Botan::BigInt& scalar, - const char* curve_name) - { - if(curve_name == nullptr) - return BOTAN_FFI_ERROR_NULL_POINTER; - - Botan::Null_RNG null_rng; - Botan::EC_Group grp(curve_name); - key.reset(new ECPrivateKey_t(null_rng, grp, scalar)); - return BOTAN_FFI_SUCCESS; - } - -template<class ECPublicKey_t> -int pubkey_load_ec(std::unique_ptr<ECPublicKey_t>& key, - const Botan::BigInt& public_x, - const Botan::BigInt& public_y, - const char* curve_name) - { - if(curve_name == nullptr) - return BOTAN_FFI_ERROR_NULL_POINTER; - - Botan::Null_RNG null_rng; - Botan::EC_Group grp(curve_name); - Botan::PointGFp uncompressed_point(grp.get_curve(), public_x, public_y); - key.reset(new ECPublicKey_t(grp, uncompressed_point)); - return BOTAN_FFI_SUCCESS; - } - -#endif - -} // closes anonymous namespace +} extern "C" { -#define BOTAN_FFI_DECLARE_STRUCT(NAME, TYPE, MAGIC) \ - struct NAME : public botan_struct<TYPE, MAGIC> { explicit NAME(TYPE* x) : botan_struct(x) {} } - -struct botan_cipher_struct : public botan_struct<Botan::Cipher_Mode, 0xB4A2BF9C> - { - explicit botan_cipher_struct(Botan::Cipher_Mode* x) : botan_struct(x) {} - Botan::secure_vector<uint8_t> m_buf; - }; - -BOTAN_FFI_DECLARE_STRUCT(botan_rng_struct, Botan::RandomNumberGenerator, 0x4901F9C1); -BOTAN_FFI_DECLARE_STRUCT(botan_mp_struct, Botan::BigInt, 0xC828B9D2); -BOTAN_FFI_DECLARE_STRUCT(botan_block_cipher_struct, Botan::BlockCipher, 0x64C29716); -BOTAN_FFI_DECLARE_STRUCT(botan_hash_struct, Botan::HashFunction, 0x1F0A4F84); -BOTAN_FFI_DECLARE_STRUCT(botan_mac_struct, Botan::MessageAuthenticationCode, 0xA06E8FC1); -BOTAN_FFI_DECLARE_STRUCT(botan_pubkey_struct, Botan::Public_Key, 0x2C286519); -BOTAN_FFI_DECLARE_STRUCT(botan_privkey_struct, Botan::Private_Key, 0x7F96385E); -BOTAN_FFI_DECLARE_STRUCT(botan_pk_op_encrypt_struct, Botan::PK_Encryptor, 0x891F3FC3); -BOTAN_FFI_DECLARE_STRUCT(botan_pk_op_decrypt_struct, Botan::PK_Decryptor, 0x912F3C37); -BOTAN_FFI_DECLARE_STRUCT(botan_pk_op_sign_struct, Botan::PK_Signer, 0x1AF0C39F); -BOTAN_FFI_DECLARE_STRUCT(botan_pk_op_verify_struct, Botan::PK_Verifier, 0x2B91F936); -BOTAN_FFI_DECLARE_STRUCT(botan_pk_op_ka_struct, Botan::PK_Key_Agreement, 0x2939CAB1); - -BOTAN_FFI_DECLARE_STRUCT(botan_x509_cert_struct, Botan::X509_Certificate, 0x8F628937); - - -#if defined(BOTAN_HAS_TLS) -BOTAN_FFI_DECLARE_STRUCT(botan_tls_channel_struct, Botan::TLS::Channel, 0x0212FE99); -#endif +using namespace Botan_FFI; /* * Versioning @@ -508,1866 +74,5 @@ int botan_hex_encode(const uint8_t* in, size_t len, char* out, uint32_t flags) }); } -int botan_rng_init(botan_rng_t* rng_out, const char* rng_type) - { - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - BOTAN_ASSERT_ARG_NON_NULL(rng_out); - - const std::string rng_type_s(rng_type ? rng_type : "system"); - - std::unique_ptr<Botan::RandomNumberGenerator> rng; - - if(rng_type_s == "system") - rng.reset(new Botan::System_RNG); - else if(rng_type_s == "user") - rng.reset(new Botan::AutoSeeded_RNG); - else - return BOTAN_FFI_ERROR_BAD_PARAMETER; - - *rng_out = new botan_rng_struct(rng.release()); - return BOTAN_FFI_SUCCESS; - }); - } - -int botan_rng_destroy(botan_rng_t rng) - { - return BOTAN_FFI_CHECKED_DELETE(rng); - } - -int botan_rng_get(botan_rng_t rng, uint8_t* out, size_t out_len) - { - return BOTAN_FFI_DO(Botan::RandomNumberGenerator, rng, r, { r.randomize(out, out_len); }); - } - -int botan_rng_reseed(botan_rng_t rng, size_t bits) - { - return BOTAN_FFI_DO(Botan::RandomNumberGenerator, rng, r, { r.reseed_from_rng(Botan::system_rng(), bits); }); - } - -int botan_mp_init(botan_mp_t* mp_out) - { - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - BOTAN_ASSERT_ARG_NON_NULL(mp_out); - - *mp_out = new botan_mp_struct(new Botan::BigInt); - return BOTAN_FFI_SUCCESS; - }); - } - -int botan_mp_clear(botan_mp_t mp) - { - return BOTAN_FFI_DO(Botan::BigInt, mp, bn, { bn.clear(); }); - } - -int botan_mp_set_from_int(botan_mp_t mp, int initial_value) - { - return BOTAN_FFI_DO(Botan::BigInt, mp, bn, { - if(initial_value >= 0) - { - bn = Botan::BigInt(static_cast<uint64_t>(initial_value)); - } - else - { - bn = Botan::BigInt(static_cast<uint64_t>(-initial_value)); - bn.flip_sign(); - } - }); - } - -int botan_mp_set_from_str(botan_mp_t mp, const char* str) - { - return BOTAN_FFI_DO(Botan::BigInt, mp, bn, { bn = Botan::BigInt(str); }); - } - -int botan_mp_set_from_radix_str(botan_mp_t mp, const char* str, size_t radix) - { - return BOTAN_FFI_DO(Botan::BigInt, mp, bn, { - Botan::BigInt::Base base; - if(radix == 10) - base = Botan::BigInt::Decimal; - else if(radix == 16) - base = Botan::BigInt::Hexadecimal; - else - return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; - - const uint8_t* bytes = reinterpret_cast<const uint8_t*>(str); - const size_t len = strlen(str); - - bn = Botan::BigInt::decode(bytes, len, base); - }); - } - -int botan_mp_set_from_mp(botan_mp_t dest, const botan_mp_t source) - { - return BOTAN_FFI_DO(Botan::BigInt, dest, bn, { bn = safe_get(source); }); - } - -int botan_mp_is_negative(const botan_mp_t mp) - { - return BOTAN_FFI_DO(Botan::BigInt, mp, bn, { return bn.is_negative() ? 1 : 0; }); - } - -int botan_mp_is_positive(const botan_mp_t mp) - { - return BOTAN_FFI_DO(Botan::BigInt, mp, bn, { return bn.is_positive() ? 1 : 0; }); - } - -int botan_mp_flip_sign(botan_mp_t mp) - { - return BOTAN_FFI_DO(Botan::BigInt, mp, bn, { bn.flip_sign(); }); - } - -int botan_mp_from_bin(botan_mp_t mp, const uint8_t bin[], size_t bin_len) - { - return BOTAN_FFI_DO(Botan::BigInt, mp, bn, { bn.binary_decode(bin, bin_len); }); - } - -int botan_mp_to_hex(const botan_mp_t mp, char* out) - { - return BOTAN_FFI_DO(Botan::BigInt, mp, bn, { - std::vector<uint8_t> hex = Botan::BigInt::encode(bn, Botan::BigInt::Hexadecimal); - std::memcpy(out, hex.data(), hex.size()); - out[hex.size()] = 0; // null terminate - }); - } - -int botan_mp_to_str(const botan_mp_t mp, uint8_t digit_base, char* out, size_t* out_len) - { - return BOTAN_FFI_DO(Botan::BigInt, mp, bn, { - Botan::BigInt::Base base; - if(digit_base == 0 || digit_base == 10) - base = Botan::BigInt::Decimal; - else if(digit_base == 16) - base = Botan::BigInt::Hexadecimal; - else - throw FFI_Error("botan_mp_to_str invalid digit base"); - - std::vector<uint8_t> hex = Botan::BigInt::encode(bn, base); - hex.push_back(0); // null terminator - return write_str_output(out, out_len, hex); - }); - } - -int botan_mp_to_bin(const botan_mp_t mp, uint8_t vec[]) - { - return BOTAN_FFI_DO(Botan::BigInt, mp, bn, { bn.binary_encode(vec); }); - } - -int botan_mp_to_uint32(const botan_mp_t mp, uint32_t* val) - { - if(val == nullptr) { - return BOTAN_FFI_ERROR_NULL_POINTER; - } - return BOTAN_FFI_DO(Botan::BigInt, mp, bn, { *val = bn.to_u32bit(); }); - } - -int botan_mp_destroy(botan_mp_t mp) - { - return BOTAN_FFI_CHECKED_DELETE(mp); - } - -int botan_mp_add(botan_mp_t result, const botan_mp_t x, const botan_mp_t y) - { - return BOTAN_FFI_DO(Botan::BigInt, result, res, { res = safe_get(x) + safe_get(y); }); - } - -int botan_mp_sub(botan_mp_t result, const botan_mp_t x, const botan_mp_t y) - { - return BOTAN_FFI_DO(Botan::BigInt, result, res, { res = safe_get(x) - safe_get(y); }); - } - -int botan_mp_mul(botan_mp_t result, const botan_mp_t x, const botan_mp_t y) - { - return BOTAN_FFI_DO(Botan::BigInt, result, res, { res = safe_get(x) * safe_get(y); }); - } - -int botan_mp_div(botan_mp_t quotient, - botan_mp_t remainder, - const botan_mp_t x, const botan_mp_t y) - { - return BOTAN_FFI_DO(Botan::BigInt, quotient, q, { - Botan::BigInt r; - Botan::divide(safe_get(x), safe_get(y), q, r); - safe_get(remainder) = r; - }); - } - -int botan_mp_equal(const botan_mp_t x_w, const botan_mp_t y_w) - { - return BOTAN_FFI_DO(Botan::BigInt, x_w, x, { return x == safe_get(y_w); }); - } - -int botan_mp_is_zero(const botan_mp_t mp) - { - return BOTAN_FFI_DO(Botan::BigInt, mp, bn, { return bn.is_zero(); }); - } - -int botan_mp_is_odd(const botan_mp_t mp) - { - return BOTAN_FFI_DO(Botan::BigInt, mp, bn, { return bn.is_odd(); }); - } - -int botan_mp_is_even(const botan_mp_t mp) - { - return BOTAN_FFI_DO(Botan::BigInt, mp, bn, { return bn.is_even(); }); - } - -int botan_mp_cmp(int* result, const botan_mp_t x_w, const botan_mp_t y_w) - { - return BOTAN_FFI_DO(Botan::BigInt, x_w, x, { *result = x.cmp(safe_get(y_w)); }); - } - -int botan_mp_swap(botan_mp_t x_w, botan_mp_t y_w) - { - return BOTAN_FFI_DO(Botan::BigInt, x_w, x, { x.swap(safe_get(y_w)); }); - } - -// Return (base^exponent) % modulus -int botan_mp_powmod(botan_mp_t out, const botan_mp_t base, const botan_mp_t exponent, const botan_mp_t modulus) - { - return BOTAN_FFI_DO(Botan::BigInt, out, o, - { o = Botan::power_mod(safe_get(base), safe_get(exponent), safe_get(modulus)); }); - } - -int botan_mp_lshift(botan_mp_t out, const botan_mp_t in, size_t shift) - { - return BOTAN_FFI_DO(Botan::BigInt, out, o, { o = safe_get(in) << shift; }); - } - -int botan_mp_rshift(botan_mp_t out, const botan_mp_t in, size_t shift) - { - return BOTAN_FFI_DO(Botan::BigInt, out, o, { o = safe_get(in) >> shift; }); - } - -int botan_mp_mod_inverse(botan_mp_t out, const botan_mp_t in, const botan_mp_t modulus) - { - return BOTAN_FFI_DO(Botan::BigInt, out, o, { o = Botan::inverse_mod(safe_get(in), safe_get(modulus)); }); - } - -int botan_mp_mod_mul(botan_mp_t out, const botan_mp_t x, const botan_mp_t y, const botan_mp_t modulus) - { - return BOTAN_FFI_DO(Botan::BigInt, out, o, { - Botan::Modular_Reducer reducer(safe_get(modulus)); - o = reducer.multiply(safe_get(x), safe_get(y)); - }); - } - -int botan_mp_rand_bits(botan_mp_t rand_out, botan_rng_t rng, size_t bits) - { - return BOTAN_FFI_DO(Botan::RandomNumberGenerator, rng, r, { - safe_get(rand_out).randomize(r, bits); }); - } - -int botan_mp_rand_range(botan_mp_t rand_out, - botan_rng_t rng, - const botan_mp_t lower, - const botan_mp_t upper) - { - return BOTAN_FFI_DO(Botan::RandomNumberGenerator, rng, r, { - safe_get(rand_out) = Botan::BigInt::random_integer(r, safe_get(lower), safe_get(upper)); }); - } - -int botan_mp_gcd(botan_mp_t out, const botan_mp_t x, const botan_mp_t y) - { - return BOTAN_FFI_DO(Botan::BigInt, out, o, { - o = Botan::gcd(safe_get(x), safe_get(y)); }); - } - -int botan_mp_is_prime(const botan_mp_t mp, botan_rng_t rng, size_t test_prob) - { - return BOTAN_FFI_DO(Botan::BigInt, mp, n, - { return (Botan::is_prime(n, safe_get(rng), test_prob)) ? 1 : 0; }); - } - -int botan_mp_get_bit(const botan_mp_t mp, size_t bit) - { - return BOTAN_FFI_DO(Botan::BigInt, mp, n, { return (n.get_bit(bit)); }); - } - -int botan_mp_set_bit(botan_mp_t mp, size_t bit) - { - return BOTAN_FFI_DO(Botan::BigInt, mp, n, { n.set_bit(bit); }); - } - -int botan_mp_clear_bit(botan_mp_t mp, size_t bit) - { - return BOTAN_FFI_DO(Botan::BigInt, mp, n, { n.clear_bit(bit); }); - } - -int botan_mp_num_bits(const botan_mp_t mp, size_t* bits) - { - return BOTAN_FFI_DO(Botan::BigInt, mp, n, { *bits = n.bits(); }); - } - -int botan_mp_num_bytes(const botan_mp_t mp, size_t* bytes) - { - return BOTAN_FFI_DO(Botan::BigInt, mp, n, { *bytes = n.bytes(); }); - } - -int botan_block_cipher_init(botan_block_cipher_t* bc, const char* bc_name) - { - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - if(bc == nullptr || bc_name == nullptr || *bc_name == 0) - return BOTAN_FFI_ERROR_NULL_POINTER; - - *bc = nullptr; - - std::unique_ptr<Botan::BlockCipher> cipher(Botan::BlockCipher::create(bc_name)); - if(cipher == nullptr) - return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; - - *bc = new botan_block_cipher_struct(cipher.release()); - return BOTAN_FFI_SUCCESS; - }); - } - -/** -* Destroy a block cipher object -*/ -int botan_block_cipher_destroy(botan_block_cipher_t bc) - { - return BOTAN_FFI_CHECKED_DELETE(bc); - } - -int botan_block_cipher_clear(botan_block_cipher_t bc) - { - return BOTAN_FFI_DO(Botan::BlockCipher, bc, b, { b.clear(); }); - } - -/** -* Set the key for a block cipher instance -*/ -int botan_block_cipher_set_key(botan_block_cipher_t bc, - const uint8_t key[], size_t len) - { - return BOTAN_FFI_DO(Botan::BlockCipher, bc, b, { b.set_key(key, len); }); - } - -/** -* Return the positive block size of this block cipher, or negative to -* indicate an error -*/ -int botan_block_cipher_block_size(botan_block_cipher_t bc) - { - return BOTAN_FFI_DO(Botan::BlockCipher, bc, b, { return b.block_size(); }); - } - -int botan_block_cipher_encrypt_blocks(botan_block_cipher_t bc, - const uint8_t in[], - uint8_t out[], - size_t blocks) - { - return BOTAN_FFI_DO(Botan::BlockCipher, bc, b, { b.encrypt_n(in, out, blocks); }); - } - -int botan_block_cipher_decrypt_blocks(botan_block_cipher_t bc, - const uint8_t in[], - uint8_t out[], - size_t blocks) - { - return BOTAN_FFI_DO(Botan::BlockCipher, bc, b, { b.decrypt_n(in, out, blocks); }); - } - -int botan_hash_init(botan_hash_t* hash, const char* hash_name, uint32_t flags) - { - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - if(hash == nullptr || hash_name == nullptr || *hash_name == 0) - return BOTAN_FFI_ERROR_NULL_POINTER; - if(flags != 0) - return BOTAN_FFI_ERROR_BAD_FLAG; - - std::unique_ptr<Botan::HashFunction> h = Botan::HashFunction::create(hash_name); - if(h == nullptr) - return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; - - *hash = new botan_hash_struct(h.release()); - return BOTAN_FFI_SUCCESS; - }); - } - -int botan_hash_destroy(botan_hash_t hash) - { - return BOTAN_FFI_CHECKED_DELETE(hash); - } - -int botan_hash_output_length(botan_hash_t hash, size_t* out) - { - return BOTAN_FFI_DO(Botan::HashFunction, hash, h, { *out = h.output_length(); }); - } - -int botan_hash_block_size(botan_hash_t hash, size_t* out) - { - return BOTAN_FFI_DO(Botan::HashFunction, hash, h, { *out = h.hash_block_size(); }); - } - -int botan_hash_clear(botan_hash_t hash) - { - return BOTAN_FFI_DO(Botan::HashFunction, hash, h, { h.clear(); }); - } - -int botan_hash_update(botan_hash_t hash, const uint8_t* buf, size_t len) - { - return BOTAN_FFI_DO(Botan::HashFunction, hash, h, { h.update(buf, len); }); - } - -int botan_hash_final(botan_hash_t hash, uint8_t out[]) - { - return BOTAN_FFI_DO(Botan::HashFunction, hash, h, { h.final(out); }); - } - -int botan_hash_copy_state(botan_hash_t* dest, const botan_hash_t source) - { - return BOTAN_FFI_DO(Botan::HashFunction, source, src, { - *dest = new botan_hash_struct(src.copy_state().release()); }); - } - -int botan_mac_init(botan_mac_t* mac, const char* mac_name, uint32_t flags) - { - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - if(!mac || !mac_name || flags != 0) - return BOTAN_FFI_ERROR_NULL_POINTER; - - std::unique_ptr<Botan::MessageAuthenticationCode> m = - Botan::MessageAuthenticationCode::create(mac_name); - - if(m == nullptr) - return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; - - *mac = new botan_mac_struct(m.release()); - return BOTAN_FFI_SUCCESS; - }); - } - -int botan_mac_destroy(botan_mac_t mac) - { - return BOTAN_FFI_CHECKED_DELETE(mac); - } - -int botan_mac_set_key(botan_mac_t mac, const uint8_t* key, size_t key_len) - { - return BOTAN_FFI_DO(Botan::MessageAuthenticationCode, mac, m, { m.set_key(key, key_len); }); - } - -int botan_mac_output_length(botan_mac_t mac, size_t* out) - { - return BOTAN_FFI_DO(Botan::MessageAuthenticationCode, mac, m, { *out = m.output_length(); }); - } - -int botan_mac_clear(botan_mac_t mac) - { - return BOTAN_FFI_DO(Botan::MessageAuthenticationCode, mac, m, { m.clear(); }); - } - -int botan_mac_update(botan_mac_t mac, const uint8_t* buf, size_t len) - { - return BOTAN_FFI_DO(Botan::MessageAuthenticationCode, mac, m, { m.update(buf, len); }); - } - -int botan_mac_final(botan_mac_t mac, uint8_t out[]) - { - return BOTAN_FFI_DO(Botan::MessageAuthenticationCode, mac, m, { m.final(out); }); - } - -int botan_cipher_init(botan_cipher_t* cipher, const char* cipher_name, uint32_t flags) - { - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - const bool encrypt_p = ((flags & BOTAN_CIPHER_INIT_FLAG_MASK_DIRECTION) == BOTAN_CIPHER_INIT_FLAG_ENCRYPT); - const Botan::Cipher_Dir dir = encrypt_p ? Botan::ENCRYPTION : Botan::DECRYPTION; - std::unique_ptr<Botan::Cipher_Mode> mode(Botan::get_cipher_mode(cipher_name, dir)); - if(!mode) - return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; - *cipher = new botan_cipher_struct(mode.release()); - return BOTAN_FFI_SUCCESS; - }); - } - -int botan_cipher_destroy(botan_cipher_t cipher) - { - return BOTAN_FFI_CHECKED_DELETE(cipher); - } - -int botan_cipher_clear(botan_cipher_t cipher) - { - return BOTAN_FFI_DO(Botan::Cipher_Mode, cipher, c, { c.clear(); }); - } - -int botan_cipher_query_keylen(botan_cipher_t cipher, - size_t* out_minimum_keylength, - size_t* out_maximum_keylength) - { - return BOTAN_FFI_DO(Botan::Cipher_Mode, cipher, c, { - *out_minimum_keylength = c.key_spec().minimum_keylength(); - *out_maximum_keylength = c.key_spec().maximum_keylength(); - }); - } - -int botan_cipher_set_key(botan_cipher_t cipher, - const uint8_t* key, size_t key_len) - { - return BOTAN_FFI_DO(Botan::Cipher_Mode, cipher, c, { c.set_key(key, key_len); }); - } - -int botan_cipher_start(botan_cipher_t cipher_obj, - const uint8_t* nonce, size_t nonce_len) - { - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - Botan::Cipher_Mode& cipher = safe_get(cipher_obj); - cipher.start(nonce, nonce_len); - cipher_obj->m_buf.reserve(cipher.update_granularity()); - return BOTAN_FFI_SUCCESS; - }); - } - -int botan_cipher_update(botan_cipher_t cipher_obj, - uint32_t flags, - uint8_t output_ptr[], - size_t orig_output_size, - size_t* output_written, - const uint8_t input_ptr[], - size_t orig_input_size, - size_t* input_consumed) - { - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - - size_t input_size = orig_input_size; - size_t output_size = orig_output_size; - const uint8_t* input = input_ptr; - uint8_t* output = output_ptr; - - using namespace Botan; - Cipher_Mode& cipher = safe_get(cipher_obj); - secure_vector<uint8_t>& mbuf = cipher_obj->m_buf; - - const bool final_input = (flags & BOTAN_CIPHER_UPDATE_FLAG_FINAL); - - if(final_input) - { - mbuf.assign(input, input + input_size); - *input_consumed = input_size; - *output_written = 0; - - try - { - cipher.finish(mbuf); - } - catch(Integrity_Failure& e) - { - return BOTAN_FFI_ERROR_BAD_MAC; - } - - *output_written = mbuf.size(); - - if(mbuf.size() <= output_size) - { - copy_mem(output, mbuf.data(), mbuf.size()); - mbuf.clear(); - return BOTAN_FFI_SUCCESS; - } - - return -1; - } - - if(input_size == 0) - { - // Currently must take entire buffer in this case - *output_written = mbuf.size(); - if(output_size >= mbuf.size()) - { - copy_mem(output, mbuf.data(), mbuf.size()); - mbuf.clear(); - return BOTAN_FFI_SUCCESS; - } - - return -1; - } - - const size_t ud = cipher.update_granularity(); - BOTAN_ASSERT(cipher.update_granularity() > cipher.minimum_final_size(), "logic error"); - - mbuf.resize(ud); - size_t taken = 0, written = 0; - - while(input_size >= ud && output_size >= ud) - { - copy_mem(mbuf.data(), input, ud); - cipher.update(mbuf); - - input_size -= ud; - copy_mem(output, mbuf.data(), ud); - input += ud; - taken += ud; - - output_size -= ud; - output += ud; - written += ud; - } - - *output_written = written; - *input_consumed = taken; - - return BOTAN_FFI_SUCCESS; - }); - } - -int botan_cipher_set_associated_data(botan_cipher_t cipher, - const uint8_t* ad, - size_t ad_len) - { - return BOTAN_FFI_DO(Botan::Cipher_Mode, cipher, c, { - if(Botan::AEAD_Mode* aead = dynamic_cast<Botan::AEAD_Mode*>(&c)) - { - aead->set_associated_data(ad, ad_len); - return BOTAN_FFI_SUCCESS; - } - return BOTAN_FFI_ERROR_BAD_PARAMETER; - }); - } - -int botan_cipher_valid_nonce_length(botan_cipher_t cipher, size_t nl) - { - return BOTAN_FFI_DO(Botan::Cipher_Mode, cipher, c, { return c.valid_nonce_length(nl) ? 1 : 0; }); - } - -int botan_cipher_get_default_nonce_length(botan_cipher_t cipher, size_t* nl) - { - return BOTAN_FFI_DO(Botan::Cipher_Mode, cipher, c, { *nl = c.default_nonce_length(); }); - } - -int botan_cipher_get_update_granularity(botan_cipher_t cipher, size_t* ug) - { - return BOTAN_FFI_DO(Botan::Cipher_Mode, cipher, c, { *ug = c.update_granularity(); }); - } - -int botan_cipher_get_tag_length(botan_cipher_t cipher, size_t* tl) - { - return BOTAN_FFI_DO(Botan::Cipher_Mode, cipher, c, { *tl = c.tag_size(); }); - } - -int botan_pbkdf(const char* pbkdf_algo, uint8_t out[], size_t out_len, - const char* pass, const uint8_t salt[], size_t salt_len, - size_t iterations) - { - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - std::unique_ptr<Botan::PBKDF> pbkdf(Botan::get_pbkdf(pbkdf_algo)); - pbkdf->pbkdf_iterations(out, out_len, pass, salt, salt_len, iterations); - return BOTAN_FFI_SUCCESS; - }); - } - -int botan_pbkdf_timed(const char* pbkdf_algo, - uint8_t out[], size_t out_len, - const char* password, - const uint8_t salt[], size_t salt_len, - size_t ms_to_run, - size_t* iterations_used) - { - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - std::unique_ptr<Botan::PBKDF> pbkdf(Botan::get_pbkdf(pbkdf_algo)); - pbkdf->pbkdf_timed(out, out_len, password, salt, salt_len, - std::chrono::milliseconds(ms_to_run), - *iterations_used); - return BOTAN_FFI_SUCCESS; - }); - } - -int botan_kdf(const char* kdf_algo, - uint8_t out[], size_t out_len, - const uint8_t secret[], size_t secret_len, - const uint8_t salt[], size_t salt_len, - const uint8_t label[], size_t label_len) - { - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - std::unique_ptr<Botan::KDF> kdf(Botan::get_kdf(kdf_algo)); - kdf->kdf(out, out_len, secret, secret_len, salt, salt_len, label, label_len); - return BOTAN_FFI_SUCCESS; - }); - } - -int botan_bcrypt_generate(uint8_t* out, size_t* out_len, - const char* pass, - botan_rng_t rng_obj, size_t wf, - uint32_t flags) - { -#if defined(BOTAN_HAS_BCRYPT) - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - BOTAN_ASSERT_ARG_NON_NULL(out); - BOTAN_ASSERT_ARG_NON_NULL(out_len); - BOTAN_ASSERT_ARG_NON_NULL(pass); - - if(flags != 0) - return BOTAN_FFI_ERROR_BAD_FLAG; - - if(wf < 2 || wf > 30) - throw FFI_Error("Bad bcrypt work factor " + std::to_string(wf)); - - Botan::RandomNumberGenerator& rng = safe_get(rng_obj); - const std::string bcrypt = Botan::generate_bcrypt(pass, rng, wf); - return write_str_output(out, out_len, bcrypt); - }); -#else - return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; -#endif - } - -int botan_bcrypt_is_valid(const char* pass, const char* hash) - { -#if defined(BOTAN_HAS_BCRYPT) - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - return Botan::check_bcrypt(pass, hash) ? 0 : 1; - }); -#else - return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; -#endif - } - -int botan_privkey_create(botan_privkey_t* key_obj, - const char* algo_name, - const char* algo_params, - botan_rng_t rng_obj) - { - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - if(key_obj == nullptr) - return BOTAN_FFI_ERROR_NULL_POINTER; - - *key_obj = nullptr; - if(rng_obj == nullptr) - return BOTAN_FFI_ERROR_NULL_POINTER; - - Botan::RandomNumberGenerator& rng = safe_get(rng_obj); - std::unique_ptr<Botan::Private_Key> key( - Botan::create_private_key(algo_name ? algo_name : "RSA", - rng, - algo_params ? algo_params : "")); - - if(key) - { - *key_obj = new botan_privkey_struct(key.release()); - return BOTAN_FFI_SUCCESS; - } - else - { - return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; - } - }); - } - -int botan_privkey_create_rsa(botan_privkey_t* key_obj, botan_rng_t rng_obj, size_t n_bits) - { -#if defined(BOTAN_HAS_RSA) - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - if(key_obj == nullptr || rng_obj == nullptr) - return BOTAN_FFI_ERROR_NULL_POINTER; - if(n_bits < 1024 || n_bits > 16*1024) - return BOTAN_FFI_ERROR_BAD_PARAMETER; - - *key_obj = nullptr; - - Botan::RandomNumberGenerator& rng = safe_get(rng_obj); - std::unique_ptr<Botan::Private_Key> key(new Botan::RSA_PrivateKey(rng, n_bits)); - *key_obj = new botan_privkey_struct(key.release()); - return BOTAN_FFI_SUCCESS; - }); -#else - return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; -#endif - } - -int botan_privkey_create_ecdsa(botan_privkey_t* key_obj, botan_rng_t rng_obj, const char* param_str) - { -#if defined(BOTAN_HAS_ECDSA) - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - if(key_obj == nullptr || rng_obj == nullptr || param_str == nullptr || *param_str == 0) - return BOTAN_FFI_ERROR_NULL_POINTER; - - *key_obj = nullptr; - - Botan::RandomNumberGenerator& rng = safe_get(rng_obj); - Botan::EC_Group grp(param_str); - std::unique_ptr<Botan::Private_Key> key(new Botan::ECDSA_PrivateKey(rng, grp)); - *key_obj = new botan_privkey_struct(key.release()); - return BOTAN_FFI_SUCCESS; - }); -#else - return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; -#endif - } - -int botan_privkey_create_mceliece(botan_privkey_t* key_obj, botan_rng_t rng_obj, size_t n, size_t t) - { -#if defined(BOTAN_HAS_MCELIECE) - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - if(key_obj == nullptr || rng_obj == nullptr || n == 0 || t == 0) - return BOTAN_FFI_ERROR_NULL_POINTER; - - *key_obj = nullptr; - - Botan::RandomNumberGenerator& rng = safe_get(rng_obj); - std::unique_ptr<Botan::Private_Key> key(new Botan::McEliece_PrivateKey(rng, n, t)); - *key_obj = new botan_privkey_struct(key.release()); - return BOTAN_FFI_SUCCESS; - }); -#else - return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; -#endif - } - -int botan_privkey_create_ecdh(botan_privkey_t* key_obj, botan_rng_t rng_obj, const char* param_str) - { - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - if(key_obj == nullptr || rng_obj == nullptr || param_str == nullptr || *param_str == 0) - return BOTAN_FFI_ERROR_NULL_POINTER; - - *key_obj = nullptr; - - const std::string params(param_str); - -#if defined(BOTAN_HAS_CURVE_25519) - if(params == "curve25519") - { - std::unique_ptr<Botan::Private_Key> key(new Botan::Curve25519_PrivateKey(safe_get(rng_obj))); - *key_obj = new botan_privkey_struct(key.release()); - return BOTAN_FFI_SUCCESS; - } -#endif - -#if defined(BOTAN_HAS_ECDH) - Botan::EC_Group grp(params); - std::unique_ptr<Botan::Private_Key> key(new Botan::ECDH_PrivateKey(safe_get(rng_obj), grp)); - *key_obj = new botan_privkey_struct(key.release()); - return BOTAN_FFI_SUCCESS; -#endif - - return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; - }); - } - -int botan_privkey_load(botan_privkey_t* key, botan_rng_t rng_obj, - const uint8_t bits[], size_t len, - const char* password) - { - *key = nullptr; - - if(password == nullptr) - password = ""; - - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - Botan::DataSource_Memory src(bits, len); - - Botan::RandomNumberGenerator& rng = safe_get(rng_obj); - - std::unique_ptr<Botan::PKCS8_PrivateKey> pkcs8( - Botan::PKCS8::load_key(src, rng, static_cast<std::string>(password))); - - if(pkcs8) - { - *key = new botan_privkey_struct(pkcs8.release()); - return BOTAN_FFI_SUCCESS; - } - return BOTAN_FFI_ERROR_UNKNOWN_ERROR; - }); - } - -int botan_pubkey_load(botan_pubkey_t* key, - const uint8_t bits[], size_t bits_len) - { - *key = nullptr; - - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - Botan::DataSource_Memory src(bits, bits_len); - std::unique_ptr<Botan::Public_Key> pubkey(Botan::X509::load_key(src)); - - if(pubkey == nullptr) - return BOTAN_FFI_ERROR_UNKNOWN_ERROR; - - *key = new botan_pubkey_struct(pubkey.release()); - return BOTAN_FFI_SUCCESS; - }); - } - -int botan_privkey_load_rsa(botan_privkey_t* key, - botan_mp_t rsa_p, botan_mp_t rsa_q, botan_mp_t rsa_e) - { -#if defined(BOTAN_HAS_RSA) - *key = nullptr; - - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - *key = new botan_privkey_struct(new Botan::RSA_PrivateKey(safe_get(rsa_p), - safe_get(rsa_q), - safe_get(rsa_e))); - return BOTAN_FFI_SUCCESS; - }); -#else - BOTAN_UNUSED(key, rsa_p, rsa_q, rsa_e); - return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; -#endif - } - -int botan_pubkey_load_rsa(botan_pubkey_t* key, - botan_mp_t n, botan_mp_t e) - { -#if defined(BOTAN_HAS_RSA) - *key = nullptr; - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - *key = new botan_pubkey_struct(new Botan::RSA_PublicKey(safe_get(n), safe_get(e))); - return BOTAN_FFI_SUCCESS; - }); -#else - BOTAN_UNUSED(key, n, e); - return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; -#endif - } - -int botan_privkey_load_dsa(botan_privkey_t* key, - botan_mp_t p, botan_mp_t q, botan_mp_t g, botan_mp_t x) - { -#if defined(BOTAN_HAS_DSA) - *key = nullptr; - - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - Botan::Null_RNG null_rng; - Botan::DL_Group group(safe_get(p), safe_get(q), safe_get(g)); - *key = new botan_privkey_struct(new Botan::DSA_PrivateKey(null_rng, group, safe_get(x))); - return BOTAN_FFI_SUCCESS; - }); -#else - BOTAN_UNUSED(key, p, q, g, x); - return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; -#endif - } - -int botan_pubkey_load_dsa(botan_pubkey_t* key, - botan_mp_t p, botan_mp_t q, botan_mp_t g, botan_mp_t y) - { -#if defined(BOTAN_HAS_DSA) - *key = nullptr; - - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - Botan::DL_Group group(safe_get(p), safe_get(q), safe_get(g)); - *key = new botan_pubkey_struct(new Botan::DSA_PublicKey(group, safe_get(y))); - return BOTAN_FFI_SUCCESS; - }); -#else - BOTAN_UNUSED(key, p, q, g, y); - return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; -#endif - } - -int botan_pubkey_load_elgamal(botan_pubkey_t* key, - botan_mp_t p, botan_mp_t g, botan_mp_t y) - { -#if defined(BOTAN_HAS_ELGAMAL) - *key = nullptr; - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - Botan::DL_Group group(safe_get(p), safe_get(g)); - *key = new botan_pubkey_struct(new Botan::ElGamal_PublicKey(group, safe_get(y))); - return BOTAN_FFI_SUCCESS; - }); -#else - BOTAN_UNUSED(key, p, g, y); - return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; -#endif - } - -int botan_privkey_load_elgamal(botan_privkey_t* key, - botan_mp_t p, botan_mp_t g, botan_mp_t x) - { -#if defined(BOTAN_HAS_ELGAMAL) - *key = nullptr; - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - Botan::Null_RNG null_rng; - Botan::DL_Group group(safe_get(p), safe_get(g)); - *key = new botan_privkey_struct(new Botan::ElGamal_PrivateKey(null_rng, group, safe_get(x))); - return BOTAN_FFI_SUCCESS; - }); -#else - BOTAN_UNUSED(key, p, g, x); - return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; -#endif - } - -int botan_privkey_load_ed25519(botan_privkey_t* key, - const uint8_t privkey[32]) - { -#if defined(BOTAN_HAS_ED25519) - *key = nullptr; - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - const Botan::secure_vector<uint8_t> privkey_vec(privkey, privkey + 32); - *key = new botan_privkey_struct(new Botan::Ed25519_PrivateKey(privkey_vec)); - return BOTAN_FFI_SUCCESS; - }); -#else - BOTAN_UNUSED(key, privkey); - return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; -#endif - } - -int botan_pubkey_load_ed25519(botan_pubkey_t* key, - const uint8_t pubkey[32]) - { -#if defined(BOTAN_HAS_ED25519) - *key = nullptr; - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - const std::vector<uint8_t> pubkey_vec(pubkey, pubkey + 32); - *key = new botan_pubkey_struct(new Botan::Ed25519_PublicKey(pubkey_vec)); - return BOTAN_FFI_SUCCESS; - }); -#else - BOTAN_UNUSED(key, pubkey); - return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; -#endif - } - -int botan_privkey_ed25519_get_privkey(botan_privkey_t key, - uint8_t output[64]) - { -#if defined(BOTAN_HAS_ED25519) - return BOTAN_FFI_DO(Botan::Private_Key, key, k, { - if(Botan::Ed25519_PrivateKey* ed = dynamic_cast<Botan::Ed25519_PrivateKey*>(&k)) - { - const Botan::secure_vector<uint8_t>& key = ed->get_private_key(); - if(key.size() != 64) - return BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE; - Botan::copy_mem(output, key.data(), key.size()); - return BOTAN_FFI_SUCCESS; - } - else - { - return BOTAN_FFI_ERROR_BAD_PARAMETER; - } - }); -#else - BOTAN_UNUSED(key, output); - return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; -#endif - } - -int botan_pubkey_ed25519_get_pubkey(botan_pubkey_t key, - uint8_t output[32]) - { -#if defined(BOTAN_HAS_ED25519) - return BOTAN_FFI_DO(Botan::Public_Key, key, k, { - if(Botan::Ed25519_PublicKey* ed = dynamic_cast<Botan::Ed25519_PublicKey*>(&k)) - { - const std::vector<uint8_t>& key = ed->get_public_key(); - if(key.size() != 32) - return BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE; - Botan::copy_mem(output, key.data(), key.size()); - return BOTAN_FFI_SUCCESS; - } - else - { - return BOTAN_FFI_ERROR_BAD_PARAMETER; - } - }); -#else - BOTAN_UNUSED(key, output); - return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; -#endif - } - -int botan_pubkey_load_ecdsa(botan_pubkey_t* key, - const botan_mp_t public_x, - const botan_mp_t public_y, - const char* curve_name) - { -#if defined(BOTAN_HAS_ECDSA) - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - std::unique_ptr<Botan::ECDSA_PublicKey> p_key; - - int rc = pubkey_load_ec(p_key, safe_get(public_x), safe_get(public_y), curve_name); - if(rc == BOTAN_FFI_SUCCESS) - *key = new botan_pubkey_struct(p_key.release()); - - return rc; - }); -#else - BOTAN_UNUSED(key, public_x, public_y, curve_name); - return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; -#endif - } - -int botan_pubkey_load_sm2(botan_pubkey_t* key, - const botan_mp_t public_x, - const botan_mp_t public_y, - const char* curve_name) - { -#if defined(BOTAN_HAS_SM2) - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - std::unique_ptr<Botan::SM2_Signature_PublicKey> p_key; - if(!pubkey_load_ec(p_key, safe_get(public_x), safe_get(public_y), curve_name)) - { - *key = new botan_pubkey_struct(p_key.release()); - return BOTAN_FFI_SUCCESS; - } - return BOTAN_FFI_ERROR_UNKNOWN_ERROR; - }); -#else - BOTAN_UNUSED(key, public_x, public_y, curve_name); - return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; -#endif - } - -int botan_pubkey_load_ecdh(botan_pubkey_t* key, - const botan_mp_t public_x, - const botan_mp_t public_y, - const char* curve_name) - { -#if defined(BOTAN_HAS_ECDH) - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - std::unique_ptr<Botan::ECDH_PublicKey> p_key; - int rc = pubkey_load_ec(p_key, safe_get(public_x), safe_get(public_y), curve_name); - - if(rc == BOTAN_FFI_SUCCESS) - *key = new botan_pubkey_struct(p_key.release()); - return rc; - }); -#else - BOTAN_UNUSED(key, public_x, public_y, curve_name); - return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; -#endif - } - -int botan_privkey_load_ecdsa(botan_privkey_t* key, - const botan_mp_t scalar, - const char* curve_name) - { -#if defined(BOTAN_HAS_ECDSA) - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - std::unique_ptr<Botan::ECDSA_PrivateKey> p_key; - int rc = privkey_load_ec(p_key, safe_get(scalar), curve_name); - if(rc == BOTAN_FFI_SUCCESS) - *key = new botan_privkey_struct(p_key.release()); - return rc; - }); -#else - BOTAN_UNUSED(key, scalar, curve_name); - return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; -#endif - } - -int botan_privkey_load_sm2(botan_privkey_t* key, - const botan_mp_t scalar, - const char* curve_name) - { -#if defined(BOTAN_HAS_SM2) - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - std::unique_ptr<Botan::SM2_Signature_PrivateKey> p_key; - int rc = privkey_load_ec(p_key, safe_get(scalar), curve_name); - - if(rc == BOTAN_FFI_SUCCESS) - *key = new botan_privkey_struct(p_key.release()); - return rc; - }); -#else - BOTAN_UNUSED(key, scalar, curve_name); - return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; -#endif - } - -int botan_privkey_load_ecdh(botan_privkey_t* key, - const botan_mp_t scalar, - const char* curve_name) - { -#if defined(BOTAN_HAS_ECDH) - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - std::unique_ptr<Botan::ECDH_PrivateKey> p_key; - int rc = privkey_load_ec(p_key, safe_get(scalar), curve_name); - if(rc == BOTAN_FFI_SUCCESS) - *key = new botan_privkey_struct(p_key.release()); - return rc; - }); -#else - BOTAN_UNUSED(key, scalar, curve_name); - return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; -#endif - } - -int botan_pubkey_get_field(botan_mp_t output, - botan_pubkey_t key, - const char* field_name_cstr) - { - if(field_name_cstr == nullptr) - return BOTAN_FFI_ERROR_NULL_POINTER; - - const std::string field_name(field_name_cstr); - - return BOTAN_FFI_DO(Botan::Public_Key, key, k, { - safe_get(output) = pubkey_get_field(k, field_name); - }); - } - -int botan_privkey_get_field(botan_mp_t output, - botan_privkey_t key, - const char* field_name_cstr) - { - if(field_name_cstr == nullptr) - return BOTAN_FFI_ERROR_NULL_POINTER; - - const std::string field_name(field_name_cstr); - - return BOTAN_FFI_DO(Botan::Private_Key, key, k, { - safe_get(output) = privkey_get_field(k, field_name); - }); - } - -int botan_privkey_rsa_get_p(botan_mp_t p, botan_privkey_t key) - { - return botan_privkey_get_field(p, key, "p"); - } - -int botan_privkey_rsa_get_q(botan_mp_t q, botan_privkey_t key) - { - return botan_privkey_get_field(q, key, "q"); - } - -int botan_privkey_rsa_get_n(botan_mp_t n, botan_privkey_t key) - { - return botan_privkey_get_field(n, key, "n"); - } - -int botan_privkey_rsa_get_e(botan_mp_t e, botan_privkey_t key) - { - return botan_privkey_get_field(e, key, "e"); - } - -int botan_privkey_rsa_get_d(botan_mp_t d, botan_privkey_t key) - { - return botan_privkey_get_field(d, key, "d"); - } - -int botan_pubkey_rsa_get_e(botan_mp_t e, botan_pubkey_t key) - { - return botan_pubkey_get_field(e, key, "e"); - } - -int botan_pubkey_rsa_get_n(botan_mp_t n, botan_pubkey_t key) - { - return botan_pubkey_get_field(n, key, "n"); - } - -int botan_privkey_dsa_get_x(botan_mp_t x, botan_privkey_t key) - { - return botan_privkey_get_field(x, key, "x"); - } - -int botan_pubkey_dsa_get_p(botan_mp_t p, botan_pubkey_t key) - { - return botan_pubkey_get_field(p, key, "p"); - } -int botan_pubkey_dsa_get_q(botan_mp_t q, botan_pubkey_t key) - { - return botan_pubkey_get_field(q, key, "q"); - } -int botan_pubkey_dsa_get_g(botan_mp_t g, botan_pubkey_t key) - { - return botan_pubkey_get_field(g, key, "g"); - } -int botan_pubkey_dsa_get_y(botan_mp_t y, botan_pubkey_t key) - { - return botan_pubkey_get_field(y, key, "y"); - } - -int botan_privkey_destroy(botan_privkey_t key) - { - return BOTAN_FFI_CHECKED_DELETE(key); - } - -int botan_pubkey_destroy(botan_pubkey_t key) - { - return BOTAN_FFI_CHECKED_DELETE(key); - } - -int botan_privkey_export_pubkey(botan_pubkey_t* pubout, botan_privkey_t key_obj) - { - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - std::unique_ptr<Botan::Public_Key> - pubkey(Botan::X509::load_key(Botan::X509::BER_encode(safe_get(key_obj)))); - - *pubout = new botan_pubkey_struct(pubkey.release()); - return BOTAN_FFI_SUCCESS; - }); - } - -int botan_pubkey_algo_name(botan_pubkey_t key, char out[], size_t* out_len) - { - return BOTAN_FFI_DO(Botan::Public_Key, key, k, { return write_str_output(out, out_len, k.algo_name()); }); - } - -int botan_pubkey_check_key(botan_pubkey_t key, botan_rng_t rng, uint32_t flags) - { - const bool strong = (flags & BOTAN_CHECK_KEY_EXPENSIVE_TESTS); - - return BOTAN_FFI_DO(Botan::Public_Key, key, k, - { return (k.check_key(safe_get(rng), strong) == true) ? 0 : -1; }); - } - -int botan_privkey_check_key(botan_privkey_t key, botan_rng_t rng, uint32_t flags) - { - const bool strong = (flags & BOTAN_CHECK_KEY_EXPENSIVE_TESTS); - return BOTAN_FFI_DO(Botan::Private_Key, key, k, - { return (k.check_key(safe_get(rng), strong) == true) ? 0 : -1; }); - } - -int botan_pubkey_export(botan_pubkey_t key, uint8_t out[], size_t* out_len, uint32_t flags) - { - return BOTAN_FFI_DO(Botan::Public_Key, key, k, { - if(flags == BOTAN_PRIVKEY_EXPORT_FLAG_DER) - return write_vec_output(out, out_len, Botan::X509::BER_encode(k)); - else if(flags == BOTAN_PRIVKEY_EXPORT_FLAG_PEM) - return write_str_output(out, out_len, Botan::X509::PEM_encode(k)); - else - return BOTAN_FFI_ERROR_BAD_FLAG; - }); - } - -int botan_privkey_export(botan_privkey_t key, uint8_t out[], size_t* out_len, uint32_t flags) - { - return BOTAN_FFI_DO(Botan::Private_Key, key, k, { - if(flags == BOTAN_PRIVKEY_EXPORT_FLAG_DER) - return write_vec_output(out, out_len, Botan::PKCS8::BER_encode(k)); - else if(flags == BOTAN_PRIVKEY_EXPORT_FLAG_PEM) - return write_str_output(out, out_len, Botan::PKCS8::PEM_encode(k)); - else - return BOTAN_FFI_ERROR_BAD_FLAG; - }); - } - -int botan_privkey_export_encrypted(botan_privkey_t key, - uint8_t out[], size_t* out_len, - botan_rng_t rng_obj, - const char* pass, - const char* /*ignored - pbe*/, - uint32_t flags) - { - return botan_privkey_export_encrypted_pbkdf_iter(key, out, out_len, rng_obj, pass, 100000, nullptr, nullptr, flags); - } - -int botan_privkey_export_encrypted_pbkdf_msec(botan_privkey_t key, - uint8_t out[], size_t* out_len, - botan_rng_t rng_obj, - const char* pass, - uint32_t pbkdf_msec, - size_t* pbkdf_iters_out, - const char* maybe_cipher, - const char* maybe_pbkdf_hash, - uint32_t flags) - { - return BOTAN_FFI_DO(Botan::Private_Key, key, k, { - const std::chrono::milliseconds pbkdf_time(pbkdf_msec); - Botan::RandomNumberGenerator& rng = safe_get(rng_obj); - - std::string cipher; - if(maybe_cipher) - { - cipher = maybe_cipher; - } - - std::string pbkdf_hash; - if(maybe_pbkdf_hash) - { - pbkdf_hash = maybe_pbkdf_hash; - } - - if(flags == BOTAN_PRIVKEY_EXPORT_FLAG_DER) - { - return write_vec_output(out, out_len, - Botan::PKCS8::BER_encode_encrypted_pbkdf_msec(k, rng, pass, pbkdf_time, pbkdf_iters_out, cipher, pbkdf_hash)); - } - else if(flags == BOTAN_PRIVKEY_EXPORT_FLAG_PEM) - { - return write_str_output(out, out_len, - Botan::PKCS8::PEM_encode_encrypted_pbkdf_msec(k, rng, pass, pbkdf_time, pbkdf_iters_out, cipher, pbkdf_hash)); - } - else - { - return -2; - } - }); - } - -int botan_privkey_export_encrypted_pbkdf_iter(botan_privkey_t key, - uint8_t out[], size_t* out_len, - botan_rng_t rng_obj, - const char* pass, - size_t pbkdf_iter, - const char* maybe_cipher, - const char* maybe_pbkdf_hash, - uint32_t flags) - { - return BOTAN_FFI_DO(Botan::Private_Key, key, k, { - Botan::RandomNumberGenerator& rng = safe_get(rng_obj); - - std::string cipher; - if(maybe_cipher) - { - cipher = maybe_cipher; - } - - std::string pbkdf_hash; - if(maybe_pbkdf_hash) - { - pbkdf_hash = maybe_pbkdf_hash; - } - - if(flags == BOTAN_PRIVKEY_EXPORT_FLAG_DER) - { - return write_vec_output(out, out_len, - Botan::PKCS8::BER_encode_encrypted_pbkdf_iter(k, rng, pass, pbkdf_iter, cipher, pbkdf_hash)); - } - else if(flags == BOTAN_PRIVKEY_EXPORT_FLAG_PEM) - { - return write_str_output(out, out_len, - Botan::PKCS8::PEM_encode_encrypted_pbkdf_iter(k, rng, pass, pbkdf_iter, cipher, pbkdf_hash)); - } - else - { - return -2; - } - }); - } - -int botan_pubkey_estimated_strength(botan_pubkey_t key, size_t* estimate) - { - return BOTAN_FFI_DO(Botan::Public_Key, key, k, { *estimate = k.estimated_strength(); }); - } - -int botan_pubkey_fingerprint(botan_pubkey_t key, const char* hash_fn, - uint8_t out[], size_t* out_len) - { - return BOTAN_FFI_DO(Botan::Public_Key, key, k, { - std::unique_ptr<Botan::HashFunction> h(Botan::HashFunction::create(hash_fn)); - return write_vec_output(out, out_len, h->process(k.public_key_bits())); - }); - } - -int botan_pk_op_encrypt_create(botan_pk_op_encrypt_t* op, - botan_pubkey_t key_obj, - const char* padding, - uint32_t flags) - { - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - BOTAN_ASSERT_NONNULL(op); - - *op = nullptr; - - if(flags != 0) - return BOTAN_FFI_ERROR_BAD_FLAG; - - std::unique_ptr<Botan::PK_Encryptor> pk(new Botan::PK_Encryptor_EME(safe_get(key_obj), Botan::system_rng(), padding)); - *op = new botan_pk_op_encrypt_struct(pk.release()); - return BOTAN_FFI_SUCCESS; - }); - } - -int botan_pk_op_encrypt_destroy(botan_pk_op_encrypt_t op) - { - return BOTAN_FFI_CHECKED_DELETE(op); - } - -int botan_pk_op_encrypt(botan_pk_op_encrypt_t op, - botan_rng_t rng_obj, - uint8_t out[], size_t* out_len, - const uint8_t plaintext[], size_t plaintext_len) - { - return BOTAN_FFI_DO(Botan::PK_Encryptor, op, o, { - return write_vec_output(out, out_len, o.encrypt(plaintext, plaintext_len, safe_get(rng_obj))); - }); - } - -/* -* Public Key Decryption -*/ -int botan_pk_op_decrypt_create(botan_pk_op_decrypt_t* op, - botan_privkey_t key_obj, - const char* padding, - uint32_t flags) - { - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - BOTAN_ASSERT_NONNULL(op); - - *op = nullptr; - - if(flags != 0) - return BOTAN_FFI_ERROR_BAD_FLAG; - - std::unique_ptr<Botan::PK_Decryptor> pk(new Botan::PK_Decryptor_EME(safe_get(key_obj), Botan::system_rng(), padding)); - *op = new botan_pk_op_decrypt_struct(pk.release()); - return BOTAN_FFI_SUCCESS; - }); - } - -int botan_pk_op_decrypt_destroy(botan_pk_op_decrypt_t op) - { - return BOTAN_FFI_CHECKED_DELETE(op); - } - -int botan_pk_op_decrypt(botan_pk_op_decrypt_t op, - uint8_t out[], size_t* out_len, - const uint8_t ciphertext[], size_t ciphertext_len) - { - return BOTAN_FFI_DO(Botan::PK_Decryptor, op, o, { - return write_vec_output(out, out_len, o.decrypt(ciphertext, ciphertext_len)); - }); - } - -/* -* Signature Generation -*/ -int botan_pk_op_sign_create(botan_pk_op_sign_t* op, - botan_privkey_t key_obj, - const char* hash, - uint32_t flags) - { - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - BOTAN_ASSERT_NONNULL(op); - - *op = nullptr; - - if(flags != 0) - return BOTAN_FFI_ERROR_BAD_FLAG; - - std::unique_ptr<Botan::PK_Signer> pk(new Botan::PK_Signer(safe_get(key_obj),Botan::system_rng(), hash)); - *op = new botan_pk_op_sign_struct(pk.release()); - return BOTAN_FFI_SUCCESS; - }); - } - -int botan_pk_op_sign_destroy(botan_pk_op_sign_t op) - { - return BOTAN_FFI_CHECKED_DELETE(op); - } - -int botan_pk_op_sign_update(botan_pk_op_sign_t op, const uint8_t in[], size_t in_len) - { - return BOTAN_FFI_DO(Botan::PK_Signer, op, o, { o.update(in, in_len); }); - } - -int botan_pk_op_sign_finish(botan_pk_op_sign_t op, botan_rng_t rng_obj, uint8_t out[], size_t* out_len) - { - return BOTAN_FFI_DO(Botan::PK_Signer, op, o, { - return write_vec_output(out, out_len, o.signature(safe_get(rng_obj))); - }); - } - -int botan_pk_op_verify_create(botan_pk_op_verify_t* op, - botan_pubkey_t key_obj, - const char* hash, - uint32_t flags) - { - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - BOTAN_ASSERT_NONNULL(op); - - if(flags != 0) - return BOTAN_FFI_ERROR_BAD_FLAG; - - std::unique_ptr<Botan::PK_Verifier> pk(new Botan::PK_Verifier(safe_get(key_obj), hash)); - *op = new botan_pk_op_verify_struct(pk.release()); - return BOTAN_FFI_SUCCESS; - }); - } - -int botan_pk_op_verify_destroy(botan_pk_op_verify_t op) - { - return BOTAN_FFI_CHECKED_DELETE(op); - } - -int botan_pk_op_verify_update(botan_pk_op_verify_t op, const uint8_t in[], size_t in_len) - { - return BOTAN_FFI_DO(Botan::PK_Verifier, op, o, { o.update(in, in_len); }); - } - -int botan_pk_op_verify_finish(botan_pk_op_verify_t op, const uint8_t sig[], size_t sig_len) - { - return BOTAN_FFI_DO(Botan::PK_Verifier, op, o, { - const bool legit = o.check_signature(sig, sig_len); - - if(legit) - return BOTAN_FFI_SUCCESS; - else - return BOTAN_FFI_ERROR_INVALID_INPUT; - }); - } - -int botan_pk_op_key_agreement_create(botan_pk_op_ka_t* op, - botan_privkey_t key_obj, - const char* kdf, - uint32_t flags) - { - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - BOTAN_ASSERT_NONNULL(op); - - *op = nullptr; - - if(flags != 0) - return BOTAN_FFI_ERROR_BAD_FLAG; - - std::unique_ptr<Botan::PK_Key_Agreement> pk(new Botan::PK_Key_Agreement(safe_get(key_obj), Botan::system_rng(), kdf)); - *op = new botan_pk_op_ka_struct(pk.release()); - return BOTAN_FFI_SUCCESS; - }); - } - -int botan_pk_op_key_agreement_destroy(botan_pk_op_ka_t op) - { - return BOTAN_FFI_CHECKED_DELETE(op); - } - -int botan_pk_op_key_agreement_export_public(botan_privkey_t key, - uint8_t out[], size_t* out_len) - { - return BOTAN_FFI_DO(Botan::Private_Key, key, k, { - if(auto kak = dynamic_cast<const Botan::PK_Key_Agreement_Key*>(&k)) - return write_vec_output(out, out_len, kak->public_value()); - return BOTAN_FFI_ERROR_BAD_FLAG; - }); - } - -int botan_pk_op_key_agreement(botan_pk_op_ka_t op, - uint8_t out[], size_t* out_len, - const uint8_t other_key[], size_t other_key_len, - const uint8_t salt[], size_t salt_len) - { - return BOTAN_FFI_DO(Botan::PK_Key_Agreement, op, o, { - auto k = o.derive_key(*out_len, other_key, other_key_len, salt, salt_len).bits_of(); - return write_vec_output(out, out_len, k); - }); - } - -int botan_x509_cert_load_file(botan_x509_cert_t* cert_obj, const char* cert_path) - { - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - if(!cert_obj || !cert_path) - return BOTAN_FFI_ERROR_NULL_POINTER; - -#if defined(BOTAN_TARGET_OS_HAS_FILESYSTEM) - std::unique_ptr<Botan::X509_Certificate> c(new Botan::X509_Certificate(cert_path)); - *cert_obj = new botan_x509_cert_struct(c.release()); - return BOTAN_FFI_SUCCESS; -#else - return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; -#endif - }); - } - -int botan_x509_cert_load(botan_x509_cert_t* cert_obj, const uint8_t cert_bits[], size_t cert_bits_len) - { - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - if(!cert_obj || !cert_bits) - return BOTAN_FFI_ERROR_NULL_POINTER; - - Botan::DataSource_Memory bits(cert_bits, cert_bits_len); - - std::unique_ptr<Botan::X509_Certificate> c(new Botan::X509_Certificate(bits)); - *cert_obj = new botan_x509_cert_struct(c.release()); - return BOTAN_FFI_SUCCESS; - }); - } - -int botan_x509_cert_destroy(botan_x509_cert_t cert) - { - return BOTAN_FFI_CHECKED_DELETE(cert); - } - -int botan_x509_cert_get_time_starts(botan_x509_cert_t cert, char out[], size_t* out_len) - { - return BOTAN_FFI_DO(Botan::X509_Certificate, cert, c, { return write_str_output(out, out_len, c.start_time()); }); - } - -int botan_x509_cert_get_time_expires(botan_x509_cert_t cert, char out[], size_t* out_len) - { - return BOTAN_FFI_DO(Botan::X509_Certificate, cert, c, { return write_str_output(out, out_len, c.end_time()); }); - } - -int botan_x509_cert_get_serial_number(botan_x509_cert_t cert, uint8_t out[], size_t* out_len) - { - return BOTAN_FFI_DO(Botan::X509_Certificate, cert, c, { return write_vec_output(out, out_len, c.serial_number()); }); - } - -int botan_x509_cert_get_fingerprint(botan_x509_cert_t cert, const char* hash, uint8_t out[], size_t* out_len) - { - return BOTAN_FFI_DO(Botan::X509_Certificate, cert, c, { return write_str_output(out, out_len, c.fingerprint(hash)); }); - } - -int botan_x509_cert_get_authority_key_id(botan_x509_cert_t cert, uint8_t out[], size_t* out_len) - { - return BOTAN_FFI_DO(Botan::X509_Certificate, cert, c, { return write_vec_output(out, out_len, c.authority_key_id()); }); - } - -int botan_x509_cert_get_subject_key_id(botan_x509_cert_t cert, uint8_t out[], size_t* out_len) - { - return BOTAN_FFI_DO(Botan::X509_Certificate, cert, c, { return write_vec_output(out, out_len, c.subject_key_id()); }); - } - -int botan_x509_cert_get_public_key_bits(botan_x509_cert_t cert, uint8_t out[], size_t* out_len) - { - return BOTAN_FFI_DO(Botan::X509_Certificate, cert, c, { return write_vec_output(out, out_len, c.subject_public_key_bits()); }); - } - - -/* -int botan_x509_cert_path_verify(botan_x509_cert_t cert, const char* dir) -{ -} -*/ - -int botan_x509_cert_get_public_key(botan_x509_cert_t cert, botan_pubkey_t* key) - { - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - if(key == nullptr) - return BOTAN_FFI_ERROR_NULL_POINTER; - - *key = nullptr; - -#if defined(BOTAN_HAS_RSA) - std::unique_ptr<Botan::Public_Key> publicKey(safe_get(cert).subject_public_key()); - *key = new botan_pubkey_struct(publicKey.release()); - return BOTAN_FFI_SUCCESS; -#else - return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; -#endif - }); - } - -int botan_x509_cert_get_issuer_dn(botan_x509_cert_t cert, - const char* key, size_t index, - uint8_t out[], size_t* out_len) - { - return BOTAN_FFI_DO(Botan::X509_Certificate, cert, c, { return write_str_output(out, out_len, c.issuer_info(key).at(index)); }); - } - -int botan_x509_cert_get_subject_dn(botan_x509_cert_t cert, - const char* key, size_t index, - uint8_t out[], size_t* out_len) - { - return BOTAN_FFI_DO(Botan::X509_Certificate, cert, c, { return write_str_output(out, out_len, c.subject_info(key).at(index)); }); - } - -int botan_x509_cert_to_string(botan_x509_cert_t cert, char out[], size_t* out_len) - { - return BOTAN_FFI_DO(Botan::X509_Certificate, cert, c, { return write_str_output(out, out_len, c.to_string()); }); - } - -int botan_x509_cert_allowed_usage(botan_x509_cert_t cert, unsigned int key_usage) - { - return BOTAN_FFI_DO(Botan::X509_Certificate, cert, c, { - const Botan::Key_Constraints k = static_cast<Botan::Key_Constraints>(key_usage); - if(c.allowed_usage(k)) - return BOTAN_FFI_SUCCESS; - return 1; - }); - } - -int botan_pkcs_hash_id(const char* hash_name, uint8_t pkcs_id[], size_t* pkcs_id_len) - { -#if defined(BOTAN_HAS_HASH_ID) - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - const std::vector<uint8_t> hash_id = Botan::pkcs_hash_id(hash_name); - return write_output(pkcs_id, pkcs_id_len, hash_id.data(), hash_id.size()); - }); -#else - return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; -#endif - } - -int botan_mceies_decrypt(botan_privkey_t mce_key_obj, - const char* aead, - const uint8_t ct[], size_t ct_len, - const uint8_t ad[], size_t ad_len, - uint8_t out[], size_t* out_len) - { - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - Botan::Private_Key& key = safe_get(mce_key_obj); - -#if defined(BOTAN_HAS_MCELIECE) && defined(BOTAN_HAS_MCEIES) - Botan::McEliece_PrivateKey* mce = dynamic_cast<Botan::McEliece_PrivateKey*>(&key); - if(!mce) - return BOTAN_FFI_ERROR_BAD_PARAMETER; - - const Botan::secure_vector<uint8_t> pt = mceies_decrypt(*mce, ct, ct_len, ad, ad_len, aead); - return write_vec_output(out, out_len, pt); -#else - return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; -#endif - }); - } - -int botan_mceies_encrypt(botan_pubkey_t mce_key_obj, - botan_rng_t rng_obj, - const char* aead, - const uint8_t pt[], size_t pt_len, - const uint8_t ad[], size_t ad_len, - uint8_t out[], size_t* out_len) - { - return ffi_guard_thunk(BOTAN_CURRENT_FUNCTION, [=]() { - Botan::Public_Key& key = safe_get(mce_key_obj); - Botan::RandomNumberGenerator& rng = safe_get(rng_obj); - -#if defined(BOTAN_HAS_MCELIECE) && defined(BOTAN_HAS_MCEIES) - Botan::McEliece_PublicKey* mce = dynamic_cast<Botan::McEliece_PublicKey*>(&key); - if(!mce) - return BOTAN_FFI_ERROR_BAD_PARAMETER; - - Botan::secure_vector<uint8_t> ct = mceies_encrypt(*mce, pt, pt_len, ad, ad_len, rng, aead); - return write_vec_output(out, out_len, ct); -#else - return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; -#endif - }); - } - -int botan_key_wrap3394( uint8_t key[], size_t key_len, - uint8_t kek[], size_t kek_len, - uint8_t wrapped_key[], size_t *wrapped_key_len) -{ -#if defined(BOTAN_HAS_RFC3394_KEYWRAP) - try - { - const Botan::SymmetricKey kek_sym(kek, kek_len); - const Botan::secure_vector<uint8_t> key_pt(key, key + key_len); - const Botan::secure_vector<uint8_t> key_ct = Botan::rfc3394_keywrap(key_pt, kek_sym); - return write_vec_output(wrapped_key, wrapped_key_len, key_ct); - } - catch(std::exception &e) - { - return ffi_error_exception_thrown(e.what()); - } -#else - return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; -#endif -} - -int botan_key_unwrap3394( uint8_t wrapped_key[], size_t wrapped_key_len, - uint8_t kek[], size_t kek_len, - uint8_t key[], size_t *key_len) -{ -#if defined(BOTAN_HAS_RFC3394_KEYWRAP) - try - { - const Botan::SymmetricKey kek_sym(kek, kek_len); - const Botan::secure_vector<uint8_t> key_ct(wrapped_key, wrapped_key + wrapped_key_len); - const Botan::secure_vector<uint8_t> key_pt = Botan::rfc3394_keyunwrap(key_ct, kek_sym); - return write_vec_output(key, key_len, key_pt); - } - catch(std::exception &e) - { - return ffi_error_exception_thrown(e.what()); - } -#else - return BOTAN_FFI_ERROR_NOT_IMPLEMENTED; -#endif -} - -/* -int botan_tls_channel_init_client(botan_tls_channel_t* channel, - botan_tls_channel_output_fn output_fn, - botan_tls_channel_data_cb data_cb, - botan_tls_channel_alert_cb alert_cb, - botan_tls_channel_session_established session_cb, - const char* server_name) - { - - } -*/ - } |