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Diffstat (limited to 'mysql/extra/yassl/taocrypt/include/rsa.hpp')
| -rw-r--r-- | mysql/extra/yassl/taocrypt/include/rsa.hpp | 250 |
1 files changed, 0 insertions, 250 deletions
diff --git a/mysql/extra/yassl/taocrypt/include/rsa.hpp b/mysql/extra/yassl/taocrypt/include/rsa.hpp deleted file mode 100644 index ee3e378..0000000 --- a/mysql/extra/yassl/taocrypt/include/rsa.hpp +++ /dev/null @@ -1,250 +0,0 @@ -/* - Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; version 2 of the License. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; see the file COPYING. If not, write to the - Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, - MA 02110-1301 USA. -*/ - -/* rsa.hpp provides RSA ES encrypt/decrypt, SSL (block type 1) sign and verify -*/ - -#ifndef TAO_CRYPT_RSA_HPP -#define TAO_CRYPT_RSA_HPP - -#include "integer.hpp" -#include "random.hpp" - - -namespace TaoCrypt { - -class Source; - - -// Public Key Length helper -class PK_Lengths { - const Integer& image_; -public: - explicit PK_Lengths(const Integer& i) : image_(i) {} - - word32 PaddedBlockBitLength() const {return image_.BitCount() - 1;} - word32 PaddedBlockByteLength() const - {return BitsToBytes(PaddedBlockBitLength());} - - word32 FixedCiphertextLength() const {return image_.ByteCount();} - word32 FixedMaxPlaintextLength() const - {return SaturatingSubtract(PaddedBlockBitLength() / 8, 10U); } -}; - - -// RSA Public Key -class RSA_PublicKey { -protected: - Integer n_; - Integer e_; -public: - RSA_PublicKey() {} - explicit RSA_PublicKey(Source&); - - void Initialize(const Integer& n, const Integer& e) {n_ = n; e_ = e;} - void Initialize(Source&); - - Integer ApplyFunction(const Integer& x) const; - - const Integer& GetModulus() const {return n_;} - const Integer& GetPublicExponent() const {return e_;} - - void SetModulus(const Integer& n) {n_ = n;} - void SetPublicExponent(const Integer& e) {e_ = e;} - - word32 FixedCiphertextLength() - { - return PK_Lengths(n_).FixedCiphertextLength(); - } - - RSA_PublicKey(const RSA_PublicKey& other) : n_(other.n_), e_(other.e_) {} - RSA_PublicKey& operator=(const RSA_PublicKey& that) - { - RSA_PublicKey tmp(that); - Swap(tmp); - return *this; - } - - void Swap(RSA_PublicKey& other) - { - n_.Swap(other.n_); - e_.Swap(other.e_); - } -}; - - -// RSA Private Key -class RSA_PrivateKey : public RSA_PublicKey { - Integer d_; - Integer p_; - Integer q_; - Integer dp_; - Integer dq_; - Integer u_; -public: - RSA_PrivateKey() {} - explicit RSA_PrivateKey(Source&); - - void Initialize(const Integer& n, const Integer& e, const Integer& d, - const Integer& p, const Integer& q, const Integer& dp, - const Integer& dq, const Integer& u) - {n_ = n; e_ = e; d_ = d; p_ = p; q_ = q; dp_ = dp; dq_ = dq; u_ = u;} - void Initialize(Source&); - - Integer CalculateInverse(RandomNumberGenerator&, const Integer&) const; - - const Integer& GetPrime1() const {return p_;} - const Integer& GetPrime2() const {return q_;} - const Integer& GetPrivateExponent() const {return d_;} - const Integer& GetModPrime1PrivateExponent() const {return dp_;} - const Integer& GetModPrime2PrivateExponent() const {return dq_;} - const Integer& GetMultiplicativeInverseOfPrime2ModPrime1() const - {return u_;} - - void SetPrime1(const Integer& p) {p_ = p;} - void SetPrime2(const Integer& q) {q_ = q;} - void SetPrivateExponent(const Integer& d) {d_ = d;} - void SetModPrime1PrivateExponent(const Integer& dp) {dp_ = dp;} - void SetModPrime2PrivateExponent(const Integer& dq) {dq_ = dq;} - void SetMultiplicativeInverseOfPrime2ModPrime1(const Integer& u) {u_ = u;} -private: - RSA_PrivateKey(const RSA_PrivateKey&); // hide copy - RSA_PrivateKey& operator=(const RSA_PrivateKey&); // and assign -}; - - -// block type 2 padding -class RSA_BlockType2 { -public: - void Pad(const byte*, word32, byte*, word32, - RandomNumberGenerator&) const; - word32 UnPad(const byte*, word32, byte*) const; -}; - - -// block type 1 padding -class RSA_BlockType1 { -public: - void Pad(const byte*, word32, byte*, word32, - RandomNumberGenerator&) const; - word32 UnPad(const byte*, word32, byte*) const; -}; - - -// RSA Encryptor, can use any padding -template<class Pad = RSA_BlockType2> -class RSA_Encryptor { - const RSA_PublicKey& key_; - Pad padding_; -public: - explicit RSA_Encryptor(const RSA_PublicKey& k) : key_(k) {} - - void Encrypt(const byte*, word32, byte*, RandomNumberGenerator&); - bool SSL_Verify(const byte* msg, word32 sz, const byte* sig); -}; - - -// RSA Decryptor, can use any padding -template<class Pad = RSA_BlockType2> -class RSA_Decryptor { - const RSA_PrivateKey& key_; - Pad padding_; -public: - explicit RSA_Decryptor(const RSA_PrivateKey& k) : key_(k) {} - - word32 Decrypt(const byte*, word32, byte*, RandomNumberGenerator&); - void SSL_Sign(const byte*, word32, byte*, RandomNumberGenerator&); -}; - - -// Public Encrypt -template<class Pad> -void RSA_Encryptor<Pad>::Encrypt(const byte* plain, word32 sz, byte* cipher, - RandomNumberGenerator& rng) -{ - PK_Lengths lengths(key_.GetModulus()); - if (sz > lengths.FixedMaxPlaintextLength()) - return; - - ByteBlock paddedBlock(lengths.PaddedBlockByteLength()); - padding_.Pad(plain, sz, paddedBlock.get_buffer(), - lengths.PaddedBlockBitLength(), rng); - - key_.ApplyFunction(Integer(paddedBlock.get_buffer(), paddedBlock.size())). - Encode(cipher, lengths.FixedCiphertextLength()); -} - - -// Private Decrypt -template<class Pad> -word32 RSA_Decryptor<Pad>::Decrypt(const byte* cipher, word32 sz, byte* plain, - RandomNumberGenerator& rng) -{ - PK_Lengths lengths(key_.GetModulus()); - - if (sz != lengths.FixedCiphertextLength()) - return 0; - - ByteBlock paddedBlock(lengths.PaddedBlockByteLength()); - Integer x = key_.CalculateInverse(rng, Integer(cipher, - lengths.FixedCiphertextLength()).Ref()); - if (x.ByteCount() > paddedBlock.size()) - x = Integer::Zero(); // don't return false, prevents timing attack - x.Encode(paddedBlock.get_buffer(), paddedBlock.size()); - return padding_.UnPad(paddedBlock.get_buffer(), - lengths.PaddedBlockBitLength(), plain); -} - - -// Private SSL type (block 1) Encrypt -template<class Pad> -void RSA_Decryptor<Pad>::SSL_Sign(const byte* message, word32 sz, byte* sig, - RandomNumberGenerator& rng) -{ - RSA_PublicKey inverse; - inverse.Initialize(key_.GetModulus(), key_.GetPrivateExponent()); - RSA_Encryptor<RSA_BlockType1> enc(inverse); // SSL Type - enc.Encrypt(message, sz, sig, rng); -} - - -word32 SSL_Decrypt(const RSA_PublicKey& key, const byte* sig, byte* plain); - - -// Public SSL type (block 1) Decrypt -template<class Pad> -bool RSA_Encryptor<Pad>::SSL_Verify(const byte* message, word32 sz, - const byte* sig) -{ - ByteBlock plain(PK_Lengths(key_.GetModulus()).FixedMaxPlaintextLength()); - if (SSL_Decrypt(key_, sig, plain.get_buffer()) != sz) - return false; // not right justified or bad padding - - if ( (memcmp(plain.get_buffer(), message, sz)) == 0) - return true; - return false; -} - - -typedef RSA_Encryptor<> RSAES_Encryptor; -typedef RSA_Decryptor<> RSAES_Decryptor; - - -} // namespace - -#endif // TAO_CRYPT_RSA_HPP |