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authorAlexander Harkness <bearbin@gmail.com>2013-11-24 15:21:13 +0100
committerAlexander Harkness <bearbin@gmail.com>2013-11-24 15:21:13 +0100
commit3438e5d3ddf8444f0e31009ffbe8237ef3752c22 (patch)
tree7c2f76d5e9281c130e60fb932c4dda89a49863b6 /CryptoPP/rsa.cpp
parentMoved source to src (diff)
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Diffstat (limited to 'CryptoPP/rsa.cpp')
-rw-r--r--CryptoPP/rsa.cpp304
1 files changed, 0 insertions, 304 deletions
diff --git a/CryptoPP/rsa.cpp b/CryptoPP/rsa.cpp
deleted file mode 100644
index 59449c40e..000000000
--- a/CryptoPP/rsa.cpp
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@@ -1,304 +0,0 @@
-// rsa.cpp - written and placed in the public domain by Wei Dai
-
-#include "pch.h"
-#include "rsa.h"
-#include "asn.h"
-#include "oids.h"
-#include "modarith.h"
-#include "nbtheory.h"
-#include "sha.h"
-#include "algparam.h"
-#include "fips140.h"
-
-#if !defined(NDEBUG) && !defined(CRYPTOPP_IS_DLL)
-#include "pssr.h"
-NAMESPACE_BEGIN(CryptoPP)
-void RSA_TestInstantiations()
-{
- RSASS<PKCS1v15, SHA>::Verifier x1(1, 1);
- RSASS<PKCS1v15, SHA>::Signer x2(NullRNG(), 1);
- RSASS<PKCS1v15, SHA>::Verifier x3(x2);
- RSASS<PKCS1v15, SHA>::Verifier x4(x2.GetKey());
- RSASS<PSS, SHA>::Verifier x5(x3);
-#ifndef __MWERKS__
- RSASS<PSSR, SHA>::Signer x6 = x2;
- x3 = x2;
- x6 = x2;
-#endif
- RSAES<PKCS1v15>::Encryptor x7(x2);
-#ifndef __GNUC__
- RSAES<PKCS1v15>::Encryptor x8(x3);
-#endif
- RSAES<OAEP<SHA> >::Encryptor x9(x2);
-
- x4 = x2.GetKey();
-}
-NAMESPACE_END
-#endif
-
-#ifndef CRYPTOPP_IMPORTS
-
-NAMESPACE_BEGIN(CryptoPP)
-
-OID RSAFunction::GetAlgorithmID() const
-{
- return ASN1::rsaEncryption();
-}
-
-void RSAFunction::BERDecodePublicKey(BufferedTransformation &bt, bool, size_t)
-{
- BERSequenceDecoder seq(bt);
- m_n.BERDecode(seq);
- m_e.BERDecode(seq);
- seq.MessageEnd();
-}
-
-void RSAFunction::DEREncodePublicKey(BufferedTransformation &bt) const
-{
- DERSequenceEncoder seq(bt);
- m_n.DEREncode(seq);
- m_e.DEREncode(seq);
- seq.MessageEnd();
-}
-
-Integer RSAFunction::ApplyFunction(const Integer &x) const
-{
- DoQuickSanityCheck();
- return a_exp_b_mod_c(x, m_e, m_n);
-}
-
-bool RSAFunction::Validate(RandomNumberGenerator &rng, unsigned int level) const
-{
- bool pass = true;
- pass = pass && m_n > Integer::One() && m_n.IsOdd();
- pass = pass && m_e > Integer::One() && m_e.IsOdd() && m_e < m_n;
- return pass;
-}
-
-bool RSAFunction::GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const
-{
- return GetValueHelper(this, name, valueType, pValue).Assignable()
- CRYPTOPP_GET_FUNCTION_ENTRY(Modulus)
- CRYPTOPP_GET_FUNCTION_ENTRY(PublicExponent)
- ;
-}
-
-void RSAFunction::AssignFrom(const NameValuePairs &source)
-{
- AssignFromHelper(this, source)
- CRYPTOPP_SET_FUNCTION_ENTRY(Modulus)
- CRYPTOPP_SET_FUNCTION_ENTRY(PublicExponent)
- ;
-}
-
-// *****************************************************************************
-
-class RSAPrimeSelector : public PrimeSelector
-{
-public:
- RSAPrimeSelector(const Integer &e) : m_e(e) {}
- bool IsAcceptable(const Integer &candidate) const {return RelativelyPrime(m_e, candidate-Integer::One());}
- Integer m_e;
-};
-
-void InvertibleRSAFunction::GenerateRandom(RandomNumberGenerator &rng, const NameValuePairs &alg)
-{
- int modulusSize = 2048;
- alg.GetIntValue(Name::ModulusSize(), modulusSize) || alg.GetIntValue(Name::KeySize(), modulusSize);
-
- if (modulusSize < 16)
- throw InvalidArgument("InvertibleRSAFunction: specified modulus size is too small");
-
- m_e = alg.GetValueWithDefault(Name::PublicExponent(), Integer(17));
-
- if (m_e < 3 || m_e.IsEven())
- throw InvalidArgument("InvertibleRSAFunction: invalid public exponent");
-
- RSAPrimeSelector selector(m_e);
- AlgorithmParameters primeParam = MakeParametersForTwoPrimesOfEqualSize(modulusSize)
- (Name::PointerToPrimeSelector(), selector.GetSelectorPointer());
- m_p.GenerateRandom(rng, primeParam);
- m_q.GenerateRandom(rng, primeParam);
-
- m_d = m_e.InverseMod(LCM(m_p-1, m_q-1));
- assert(m_d.IsPositive());
-
- m_dp = m_d % (m_p-1);
- m_dq = m_d % (m_q-1);
- m_n = m_p * m_q;
- m_u = m_q.InverseMod(m_p);
-
- if (FIPS_140_2_ComplianceEnabled())
- {
- RSASS<PKCS1v15, SHA>::Signer signer(*this);
- RSASS<PKCS1v15, SHA>::Verifier verifier(signer);
- SignaturePairwiseConsistencyTest_FIPS_140_Only(signer, verifier);
-
- RSAES<OAEP<SHA> >::Decryptor decryptor(*this);
- RSAES<OAEP<SHA> >::Encryptor encryptor(decryptor);
- EncryptionPairwiseConsistencyTest_FIPS_140_Only(encryptor, decryptor);
- }
-}
-
-void InvertibleRSAFunction::Initialize(RandomNumberGenerator &rng, unsigned int keybits, const Integer &e)
-{
- GenerateRandom(rng, MakeParameters(Name::ModulusSize(), (int)keybits)(Name::PublicExponent(), e+e.IsEven()));
-}
-
-void InvertibleRSAFunction::Initialize(const Integer &n, const Integer &e, const Integer &d)
-{
- if (n.IsEven() || e.IsEven() | d.IsEven())
- throw InvalidArgument("InvertibleRSAFunction: input is not a valid RSA private key");
-
- m_n = n;
- m_e = e;
- m_d = d;
-
- Integer r = --(d*e);
- unsigned int s = 0;
- while (r.IsEven())
- {
- r >>= 1;
- s++;
- }
-
- ModularArithmetic modn(n);
- for (Integer i = 2; ; ++i)
- {
- Integer a = modn.Exponentiate(i, r);
- if (a == 1)
- continue;
- Integer b;
- unsigned int j = 0;
- while (a != n-1)
- {
- b = modn.Square(a);
- if (b == 1)
- {
- m_p = GCD(a-1, n);
- m_q = n/m_p;
- m_dp = m_d % (m_p-1);
- m_dq = m_d % (m_q-1);
- m_u = m_q.InverseMod(m_p);
- return;
- }
- if (++j == s)
- throw InvalidArgument("InvertibleRSAFunction: input is not a valid RSA private key");
- a = b;
- }
- }
-}
-
-void InvertibleRSAFunction::BERDecodePrivateKey(BufferedTransformation &bt, bool, size_t)
-{
- BERSequenceDecoder privateKey(bt);
- word32 version;
- BERDecodeUnsigned<word32>(privateKey, version, INTEGER, 0, 0); // check version
- m_n.BERDecode(privateKey);
- m_e.BERDecode(privateKey);
- m_d.BERDecode(privateKey);
- m_p.BERDecode(privateKey);
- m_q.BERDecode(privateKey);
- m_dp.BERDecode(privateKey);
- m_dq.BERDecode(privateKey);
- m_u.BERDecode(privateKey);
- privateKey.MessageEnd();
-}
-
-void InvertibleRSAFunction::DEREncodePrivateKey(BufferedTransformation &bt) const
-{
- DERSequenceEncoder privateKey(bt);
- DEREncodeUnsigned<word32>(privateKey, 0); // version
- m_n.DEREncode(privateKey);
- m_e.DEREncode(privateKey);
- m_d.DEREncode(privateKey);
- m_p.DEREncode(privateKey);
- m_q.DEREncode(privateKey);
- m_dp.DEREncode(privateKey);
- m_dq.DEREncode(privateKey);
- m_u.DEREncode(privateKey);
- privateKey.MessageEnd();
-}
-
-Integer InvertibleRSAFunction::CalculateInverse(RandomNumberGenerator &rng, const Integer &x) const
-{
- DoQuickSanityCheck();
- ModularArithmetic modn(m_n);
- Integer r, rInv;
- do { // do this in a loop for people using small numbers for testing
- r.Randomize(rng, Integer::One(), m_n - Integer::One());
- rInv = modn.MultiplicativeInverse(r);
- } while (rInv.IsZero());
- Integer re = modn.Exponentiate(r, m_e);
- re = modn.Multiply(re, x); // blind
- // here we follow the notation of PKCS #1 and let u=q inverse mod p
- // but in ModRoot, u=p inverse mod q, so we reverse the order of p and q
- Integer y = ModularRoot(re, m_dq, m_dp, m_q, m_p, m_u);
- y = modn.Multiply(y, rInv); // unblind
- if (modn.Exponentiate(y, m_e) != x) // check
- throw Exception(Exception::OTHER_ERROR, "InvertibleRSAFunction: computational error during private key operation");
- return y;
-}
-
-bool InvertibleRSAFunction::Validate(RandomNumberGenerator &rng, unsigned int level) const
-{
- bool pass = RSAFunction::Validate(rng, level);
- pass = pass && m_p > Integer::One() && m_p.IsOdd() && m_p < m_n;
- pass = pass && m_q > Integer::One() && m_q.IsOdd() && m_q < m_n;
- pass = pass && m_d > Integer::One() && m_d.IsOdd() && m_d < m_n;
- pass = pass && m_dp > Integer::One() && m_dp.IsOdd() && m_dp < m_p;
- pass = pass && m_dq > Integer::One() && m_dq.IsOdd() && m_dq < m_q;
- pass = pass && m_u.IsPositive() && m_u < m_p;
- if (level >= 1)
- {
- pass = pass && m_p * m_q == m_n;
- pass = pass && m_e*m_d % LCM(m_p-1, m_q-1) == 1;
- pass = pass && m_dp == m_d%(m_p-1) && m_dq == m_d%(m_q-1);
- pass = pass && m_u * m_q % m_p == 1;
- }
- if (level >= 2)
- pass = pass && VerifyPrime(rng, m_p, level-2) && VerifyPrime(rng, m_q, level-2);
- return pass;
-}
-
-bool InvertibleRSAFunction::GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const
-{
- return GetValueHelper<RSAFunction>(this, name, valueType, pValue).Assignable()
- CRYPTOPP_GET_FUNCTION_ENTRY(Prime1)
- CRYPTOPP_GET_FUNCTION_ENTRY(Prime2)
- CRYPTOPP_GET_FUNCTION_ENTRY(PrivateExponent)
- CRYPTOPP_GET_FUNCTION_ENTRY(ModPrime1PrivateExponent)
- CRYPTOPP_GET_FUNCTION_ENTRY(ModPrime2PrivateExponent)
- CRYPTOPP_GET_FUNCTION_ENTRY(MultiplicativeInverseOfPrime2ModPrime1)
- ;
-}
-
-void InvertibleRSAFunction::AssignFrom(const NameValuePairs &source)
-{
- AssignFromHelper<RSAFunction>(this, source)
- CRYPTOPP_SET_FUNCTION_ENTRY(Prime1)
- CRYPTOPP_SET_FUNCTION_ENTRY(Prime2)
- CRYPTOPP_SET_FUNCTION_ENTRY(PrivateExponent)
- CRYPTOPP_SET_FUNCTION_ENTRY(ModPrime1PrivateExponent)
- CRYPTOPP_SET_FUNCTION_ENTRY(ModPrime2PrivateExponent)
- CRYPTOPP_SET_FUNCTION_ENTRY(MultiplicativeInverseOfPrime2ModPrime1)
- ;
-}
-
-// *****************************************************************************
-
-Integer RSAFunction_ISO::ApplyFunction(const Integer &x) const
-{
- Integer t = RSAFunction::ApplyFunction(x);
- return t % 16 == 12 ? t : m_n - t;
-}
-
-Integer InvertibleRSAFunction_ISO::CalculateInverse(RandomNumberGenerator &rng, const Integer &x) const
-{
- Integer t = InvertibleRSAFunction::CalculateInverse(rng, x);
- return STDMIN(t, m_n-t);
-}
-
-NAMESPACE_END
-
-#endif