diff options
author | lloyd <[email protected]> | 2014-01-01 21:20:55 +0000 |
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committer | lloyd <[email protected]> | 2014-01-01 21:20:55 +0000 |
commit | 197dc467dec28a04c3b2f30da7cef122dfbb13e9 (patch) | |
tree | cdbd3ddaec051c72f0a757db461973d90c37b97a /src/pubkey/rsa | |
parent | 62faac373c07cfe10bc8c309e89ebdd30d8e5eaa (diff) |
Shuffle things around. Add NIST X.509 test to build.
Diffstat (limited to 'src/pubkey/rsa')
-rw-r--r-- | src/pubkey/rsa/info.txt | 8 | ||||
-rw-r--r-- | src/pubkey/rsa/rsa.cpp | 121 | ||||
-rw-r--r-- | src/pubkey/rsa/rsa.h | 155 |
3 files changed, 0 insertions, 284 deletions
diff --git a/src/pubkey/rsa/info.txt b/src/pubkey/rsa/info.txt deleted file mode 100644 index 6171642bc..000000000 --- a/src/pubkey/rsa/info.txt +++ /dev/null @@ -1,8 +0,0 @@ -define RSA 20131128 - -<requires> -if_algo -keypair -libstate -numbertheory -</requires> diff --git a/src/pubkey/rsa/rsa.cpp b/src/pubkey/rsa/rsa.cpp deleted file mode 100644 index 199ce6ad8..000000000 --- a/src/pubkey/rsa/rsa.cpp +++ /dev/null @@ -1,121 +0,0 @@ -/* -* RSA -* (C) 1999-2010 Jack Lloyd -* -* Distributed under the terms of the Botan license -*/ - -#include <botan/rsa.h> -#include <botan/parsing.h> -#include <botan/numthry.h> -#include <botan/keypair.h> -#include <future> - -namespace Botan { - -/* -* Create a RSA private key -*/ -RSA_PrivateKey::RSA_PrivateKey(RandomNumberGenerator& rng, - size_t bits, size_t exp) - { - if(bits < 1024) - throw Invalid_Argument(algo_name() + ": Can't make a key that is only " + - std::to_string(bits) + " bits long"); - if(exp < 3 || exp % 2 == 0) - throw Invalid_Argument(algo_name() + ": Invalid encryption exponent"); - - e = exp; - - do - { - p = random_prime(rng, (bits + 1) / 2, e); - q = random_prime(rng, bits - p.bits(), e); - n = p * q; - } while(n.bits() != bits); - - d = inverse_mod(e, lcm(p - 1, q - 1)); - d1 = d % (p - 1); - d2 = d % (q - 1); - c = inverse_mod(q, p); - - gen_check(rng); - } - -/* -* Check Private RSA Parameters -*/ -bool RSA_PrivateKey::check_key(RandomNumberGenerator& rng, bool strong) const - { - if(!IF_Scheme_PrivateKey::check_key(rng, strong)) - return false; - - if(!strong) - return true; - - if((e * d) % lcm(p - 1, q - 1) != 1) - return false; - - return KeyPair::signature_consistency_check(rng, *this, "EMSA4(SHA-1)"); - } - -RSA_Private_Operation::RSA_Private_Operation(const RSA_PrivateKey& rsa, - RandomNumberGenerator& rng) : - n(rsa.get_n()), - q(rsa.get_q()), - c(rsa.get_c()), - powermod_e_n(rsa.get_e(), rsa.get_n()), - powermod_d1_p(rsa.get_d1(), rsa.get_p()), - powermod_d2_q(rsa.get_d2(), rsa.get_q()), - mod_p(rsa.get_p()) - { - BigInt k(rng, n.bits() - 1); - blinder = Blinder(powermod_e_n(k), inverse_mod(k, n), n); - } - -BigInt RSA_Private_Operation::private_op(const BigInt& m) const - { - if(m >= n) - throw Invalid_Argument("RSA private op - input is too large"); - - auto future_j1 = std::async(std::launch::async, powermod_d1_p, m); - BigInt j2 = powermod_d2_q(m); - BigInt j1 = future_j1.get(); - - j1 = mod_p.reduce(sub_mul(j1, j2, c)); - - return mul_add(j1, q, j2); - } - -secure_vector<byte> -RSA_Private_Operation::sign(const byte msg[], size_t msg_len, - RandomNumberGenerator& rng) - { - rng.add_entropy(msg, msg_len); - - /* We don't check signatures against powermod_e_n here because - PK_Signer checks verification consistency for all signature - algorithms. - */ - - const BigInt m(msg, msg_len); - const BigInt x = blinder.unblind(private_op(blinder.blind(m))); - return BigInt::encode_1363(x, n.bytes()); - } - -/* -* RSA Decryption Operation -*/ -secure_vector<byte> -RSA_Private_Operation::decrypt(const byte msg[], size_t msg_len) - { - const BigInt m(msg, msg_len); - const BigInt x = blinder.unblind(private_op(blinder.blind(m))); - - BOTAN_ASSERT(m == powermod_e_n(x), - "RSA decrypt passed consistency check"); - - return BigInt::encode_locked(x); - } - -} diff --git a/src/pubkey/rsa/rsa.h b/src/pubkey/rsa/rsa.h deleted file mode 100644 index 4d9189d20..000000000 --- a/src/pubkey/rsa/rsa.h +++ /dev/null @@ -1,155 +0,0 @@ -/* -* RSA -* (C) 1999-2008 Jack Lloyd -* -* Distributed under the terms of the Botan license -*/ - -#ifndef BOTAN_RSA_H__ -#define BOTAN_RSA_H__ - -#include <botan/if_algo.h> -#include <botan/pk_ops.h> -#include <botan/reducer.h> -#include <botan/blinding.h> - -namespace Botan { - -/** -* RSA Public Key -*/ -class BOTAN_DLL RSA_PublicKey : public virtual IF_Scheme_PublicKey - { - public: - std::string algo_name() const { return "RSA"; } - - RSA_PublicKey(const AlgorithmIdentifier& alg_id, - const secure_vector<byte>& key_bits) : - IF_Scheme_PublicKey(alg_id, key_bits) - {} - - /** - * Create a RSA_PublicKey - * @arg n the modulus - * @arg e the exponent - */ - RSA_PublicKey(const BigInt& n, const BigInt& e) : - IF_Scheme_PublicKey(n, e) - {} - - protected: - RSA_PublicKey() {} - }; - -/** -* RSA Private Key -*/ -class BOTAN_DLL RSA_PrivateKey : public RSA_PublicKey, - public IF_Scheme_PrivateKey - { - public: - bool check_key(RandomNumberGenerator& rng, bool) const; - - RSA_PrivateKey(const AlgorithmIdentifier& alg_id, - const secure_vector<byte>& key_bits, - RandomNumberGenerator& rng) : - IF_Scheme_PrivateKey(rng, alg_id, key_bits) {} - - /** - * Construct a private key from the specified parameters. - * @param rng a random number generator - * @param p the first prime - * @param q the second prime - * @param e the exponent - * @param d if specified, this has to be d with - * exp * d = 1 mod (p - 1, q - 1). Leave it as 0 if you wish to - * the constructor to calculate it. - * @param n if specified, this must be n = p * q. Leave it as 0 - * if you wish to the constructor to calculate it. - */ - RSA_PrivateKey(RandomNumberGenerator& rng, - const BigInt& p, const BigInt& q, - const BigInt& e, const BigInt& d = 0, - const BigInt& n = 0) : - IF_Scheme_PrivateKey(rng, p, q, e, d, n) {} - - /** - * Create a new private key with the specified bit length - * @param rng the random number generator to use - * @param bits the desired bit length of the private key - * @param exp the public exponent to be used - */ - RSA_PrivateKey(RandomNumberGenerator& rng, - size_t bits, size_t exp = 65537); - }; - -/** -* RSA private (decrypt/sign) operation -*/ -class BOTAN_DLL RSA_Private_Operation : public PK_Ops::Signature, - public PK_Ops::Decryption - { - public: - RSA_Private_Operation(const RSA_PrivateKey& rsa, - RandomNumberGenerator& rng); - - size_t max_input_bits() const { return (n.bits() - 1); } - - secure_vector<byte> sign(const byte msg[], size_t msg_len, - RandomNumberGenerator& rng); - - secure_vector<byte> decrypt(const byte msg[], size_t msg_len); - - private: - BigInt private_op(const BigInt& m) const; - - const BigInt& n; - const BigInt& q; - const BigInt& c; - Fixed_Exponent_Power_Mod powermod_e_n, powermod_d1_p, powermod_d2_q; - Modular_Reducer mod_p; - Blinder blinder; - }; - -/** -* RSA public (encrypt/verify) operation -*/ -class BOTAN_DLL RSA_Public_Operation : public PK_Ops::Verification, - public PK_Ops::Encryption - { - public: - RSA_Public_Operation(const RSA_PublicKey& rsa) : - n(rsa.get_n()), powermod_e_n(rsa.get_e(), rsa.get_n()) - {} - - size_t max_input_bits() const { return (n.bits() - 1); } - bool with_recovery() const { return true; } - - secure_vector<byte> encrypt(const byte msg[], size_t msg_len, - RandomNumberGenerator&) - { - BigInt m(msg, msg_len); - return BigInt::encode_1363(public_op(m), n.bytes()); - } - - secure_vector<byte> verify_mr(const byte msg[], size_t msg_len) - { - BigInt m(msg, msg_len); - return BigInt::encode_locked(public_op(m)); - } - - private: - BigInt public_op(const BigInt& m) const - { - if(m >= n) - throw Invalid_Argument("RSA public op - input is too large"); - return powermod_e_n(m); - } - - const BigInt& n; - Fixed_Exponent_Power_Mod powermod_e_n; - }; - -} - -#endif |