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/*
* Utils for calling OpenSSL
* (C) 2015,2016 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#ifndef BOTAN_INTERNAL_OPENSSL_H_
#define BOTAN_INTERNAL_OPENSSL_H_
#include <botan/pk_ops_fwd.h>
#include <botan/secmem.h>
#include <botan/exceptn.h>
#include <memory>
#include <string>
#include <openssl/err.h>
#include <openssl/evp.h>
#if defined(BOTAN_HAS_RC4)
#include <openssl/rc4.h>
#endif
namespace Botan {
class BlockCipher;
class Cipher_Mode;
class StreamCipher;
class HashFunction;
class RandomNumberGenerator;
enum Cipher_Dir : int;
class BOTAN_PUBLIC_API(2,0) OpenSSL_Error final : public Exception
{
public:
OpenSSL_Error(const std::string& what, unsigned long err) :
Exception(what + " failed: " + ERR_error_string(err, nullptr)),
m_err(err) {}
ErrorType error_type() const noexcept override { return ErrorType::OpenSSLError; }
int error_code() const noexcept override { return static_cast<int>(m_err); }
private:
unsigned long m_err;
};
/* Block Ciphers */
std::unique_ptr<BlockCipher>
make_openssl_block_cipher(const std::string& name);
/* Cipher Modes */
std::unique_ptr<Cipher_Mode>
make_openssl_cipher_mode(const std::string& name, Cipher_Dir direction);
/* Hash */
std::unique_ptr<HashFunction>
make_openssl_hash(const std::string& name);
/* RSA */
#if defined(BOTAN_HAS_RSA)
class RSA_PublicKey;
class RSA_PrivateKey;
std::unique_ptr<PK_Ops::Encryption>
make_openssl_rsa_enc_op(const RSA_PublicKey& key, const std::string& params);
std::unique_ptr<PK_Ops::Decryption>
make_openssl_rsa_dec_op(const RSA_PrivateKey& key, const std::string& params);
std::unique_ptr<PK_Ops::Verification>
make_openssl_rsa_ver_op(const RSA_PublicKey& key, const std::string& params);
std::unique_ptr<PK_Ops::Signature>
make_openssl_rsa_sig_op(const RSA_PrivateKey& key, const std::string& params);
std::unique_ptr<RSA_PrivateKey>
make_openssl_rsa_private_key(RandomNumberGenerator& rng, size_t rsa_bits);
#endif
/* ECDSA */
#if defined(BOTAN_HAS_ECDSA)
class ECDSA_PublicKey;
class ECDSA_PrivateKey;
std::unique_ptr<PK_Ops::Verification>
make_openssl_ecdsa_ver_op(const ECDSA_PublicKey& key, const std::string& params);
std::unique_ptr<PK_Ops::Signature>
make_openssl_ecdsa_sig_op(const ECDSA_PrivateKey& key, const std::string& params);
#endif
/* ECDH */
#if defined(BOTAN_HAS_ECDH)
class ECDH_PrivateKey;
std::unique_ptr<PK_Ops::Key_Agreement>
make_openssl_ecdh_ka_op(const ECDH_PrivateKey& key, const std::string& params);
#endif
#if defined(BOTAN_HAS_RC4)
std::unique_ptr<StreamCipher>
make_openssl_rc4(size_t skip);
#endif
}
#endif
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