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Diffstat (limited to 'CryptoPP/rsa.h')
| -rw-r--r-- | CryptoPP/rsa.h | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/CryptoPP/rsa.h b/CryptoPP/rsa.h new file mode 100644 index 000000000..6a8b18525 --- /dev/null +++ b/CryptoPP/rsa.h @@ -0,0 +1,174 @@ +#ifndef CRYPTOPP_RSA_H +#define CRYPTOPP_RSA_H + +/** \file + This file contains classes that implement the RSA + ciphers and signature schemes as defined in PKCS #1 v2.0. +*/ + +#include "pubkey.h" +#include "asn.h" +#include "pkcspad.h" +#include "oaep.h" +#include "emsa2.h" + +NAMESPACE_BEGIN(CryptoPP) + +//! _ +class CRYPTOPP_DLL RSAFunction : public TrapdoorFunction, public X509PublicKey +{ + typedef RSAFunction ThisClass; + +public: + void Initialize(const Integer &n, const Integer &e) + {m_n = n; m_e = e;} + + // X509PublicKey + OID GetAlgorithmID() const; + void BERDecodePublicKey(BufferedTransformation &bt, bool parametersPresent, size_t size); + void DEREncodePublicKey(BufferedTransformation &bt) const; + + // CryptoMaterial + bool Validate(RandomNumberGenerator &rng, unsigned int level) const; + bool GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const; + void AssignFrom(const NameValuePairs &source); + + // TrapdoorFunction + Integer ApplyFunction(const Integer &x) const; + Integer PreimageBound() const {return m_n;} + Integer ImageBound() const {return m_n;} + + // non-derived + const Integer & GetModulus() const {return m_n;} + const Integer & GetPublicExponent() const {return m_e;} + + void SetModulus(const Integer &n) {m_n = n;} + void SetPublicExponent(const Integer &e) {m_e = e;} + +protected: + Integer m_n, m_e; +}; + +//! _ +class CRYPTOPP_DLL InvertibleRSAFunction : public RSAFunction, public TrapdoorFunctionInverse, public PKCS8PrivateKey +{ + typedef InvertibleRSAFunction ThisClass; + +public: + void Initialize(RandomNumberGenerator &rng, unsigned int modulusBits, const Integer &e = 17); + 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) + {m_n = n; m_e = e; m_d = d; m_p = p; m_q = q; m_dp = dp; m_dq = dq; m_u = u;} + //! factor n given private exponent + void Initialize(const Integer &n, const Integer &e, const Integer &d); + + // PKCS8PrivateKey + void BERDecode(BufferedTransformation &bt) + {PKCS8PrivateKey::BERDecode(bt);} + void DEREncode(BufferedTransformation &bt) const + {PKCS8PrivateKey::DEREncode(bt);} + void Load(BufferedTransformation &bt) + {PKCS8PrivateKey::BERDecode(bt);} + void Save(BufferedTransformation &bt) const + {PKCS8PrivateKey::DEREncode(bt);} + OID GetAlgorithmID() const {return RSAFunction::GetAlgorithmID();} + void BERDecodePrivateKey(BufferedTransformation &bt, bool parametersPresent, size_t size); + void DEREncodePrivateKey(BufferedTransformation &bt) const; + + // TrapdoorFunctionInverse + Integer CalculateInverse(RandomNumberGenerator &rng, const Integer &x) const; + + // GeneratableCryptoMaterial + bool Validate(RandomNumberGenerator &rng, unsigned int level) const; + /*! parameters: (ModulusSize, PublicExponent (default 17)) */ + void GenerateRandom(RandomNumberGenerator &rng, const NameValuePairs &alg); + bool GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const; + void AssignFrom(const NameValuePairs &source); + + // non-derived interface + const Integer& GetPrime1() const {return m_p;} + const Integer& GetPrime2() const {return m_q;} + const Integer& GetPrivateExponent() const {return m_d;} + const Integer& GetModPrime1PrivateExponent() const {return m_dp;} + const Integer& GetModPrime2PrivateExponent() const {return m_dq;} + const Integer& GetMultiplicativeInverseOfPrime2ModPrime1() const {return m_u;} + + void SetPrime1(const Integer &p) {m_p = p;} + void SetPrime2(const Integer &q) {m_q = q;} + void SetPrivateExponent(const Integer &d) {m_d = d;} + void SetModPrime1PrivateExponent(const Integer &dp) {m_dp = dp;} + void SetModPrime2PrivateExponent(const Integer &dq) {m_dq = dq;} + void SetMultiplicativeInverseOfPrime2ModPrime1(const Integer &u) {m_u = u;} + +protected: + Integer m_d, m_p, m_q, m_dp, m_dq, m_u; +}; + +class CRYPTOPP_DLL RSAFunction_ISO : public RSAFunction +{ +public: + Integer ApplyFunction(const Integer &x) const; + Integer PreimageBound() const {return ++(m_n>>1);} +}; + +class CRYPTOPP_DLL InvertibleRSAFunction_ISO : public InvertibleRSAFunction +{ +public: + Integer CalculateInverse(RandomNumberGenerator &rng, const Integer &x) const; + Integer PreimageBound() const {return ++(m_n>>1);} +}; + +//! RSA +struct CRYPTOPP_DLL RSA +{ + static const char * CRYPTOPP_API StaticAlgorithmName() {return "RSA";} + typedef RSAFunction PublicKey; + typedef InvertibleRSAFunction PrivateKey; +}; + +//! <a href="http://www.weidai.com/scan-mirror/ca.html#RSA">RSA cryptosystem</a> +template <class STANDARD> +struct RSAES : public TF_ES<STANDARD, RSA> +{ +}; + +//! <a href="http://www.weidai.com/scan-mirror/sig.html#RSA">RSA signature scheme with appendix</a> +/*! See documentation of PKCS1v15 for a list of hash functions that can be used with it. */ +template <class STANDARD, class H> +struct RSASS : public TF_SS<STANDARD, H, RSA> +{ +}; + +struct CRYPTOPP_DLL RSA_ISO +{ + static const char * CRYPTOPP_API StaticAlgorithmName() {return "RSA-ISO";} + typedef RSAFunction_ISO PublicKey; + typedef InvertibleRSAFunction_ISO PrivateKey; +}; + +template <class H> +struct RSASS_ISO : public TF_SS<P1363_EMSA2, H, RSA_ISO> +{ +}; + +// The two RSA encryption schemes defined in PKCS #1 v2.0 +typedef RSAES<PKCS1v15>::Decryptor RSAES_PKCS1v15_Decryptor; +typedef RSAES<PKCS1v15>::Encryptor RSAES_PKCS1v15_Encryptor; + +typedef RSAES<OAEP<SHA> >::Decryptor RSAES_OAEP_SHA_Decryptor; +typedef RSAES<OAEP<SHA> >::Encryptor RSAES_OAEP_SHA_Encryptor; + +// The three RSA signature schemes defined in PKCS #1 v2.0 +typedef RSASS<PKCS1v15, SHA>::Signer RSASSA_PKCS1v15_SHA_Signer; +typedef RSASS<PKCS1v15, SHA>::Verifier RSASSA_PKCS1v15_SHA_Verifier; + +namespace Weak { +typedef RSASS<PKCS1v15, Weak1::MD2>::Signer RSASSA_PKCS1v15_MD2_Signer; +typedef RSASS<PKCS1v15, Weak1::MD2>::Verifier RSASSA_PKCS1v15_MD2_Verifier; + +typedef RSASS<PKCS1v15, Weak1::MD5>::Signer RSASSA_PKCS1v15_MD5_Signer; +typedef RSASS<PKCS1v15, Weak1::MD5>::Verifier RSASSA_PKCS1v15_MD5_Verifier; +} + +NAMESPACE_END + +#endif |