00001 #ifndef CRYPTOPP_RSA_H
00002 #define CRYPTOPP_RSA_H
00003
00004
00005
00006
00007
00008
00009 #include "pubkey.h"
00010 #include "asn.h"
00011 #include "pkcspad.h"
00012 #include "oaep.h"
00013 #include "emsa2.h"
00014
00015 NAMESPACE_BEGIN(CryptoPP)
00016
00017
00018 class CRYPTOPP_DLL RSAFunction : public TrapdoorFunction, public X509PublicKey
00019 {
00020 typedef RSAFunction ThisClass;
00021
00022 public:
00023 void Initialize(const Integer &n, const Integer &e)
00024 {m_n = n; m_e = e;}
00025
00026
00027 OID GetAlgorithmID() const;
00028 void BERDecodePublicKey(BufferedTransformation &bt, bool parametersPresent, size_t size);
00029 void DEREncodePublicKey(BufferedTransformation &bt) const;
00030
00031
00032 bool Validate(RandomNumberGenerator &rng, unsigned int level) const;
00033 bool GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const;
00034 void AssignFrom(const NameValuePairs &source);
00035
00036
00037 Integer ApplyFunction(const Integer &x) const;
00038 Integer PreimageBound() const {return m_n;}
00039 Integer ImageBound() const {return m_n;}
00040
00041
00042 const Integer & GetModulus() const {return m_n;}
00043 const Integer & GetPublicExponent() const {return m_e;}
00044
00045 void SetModulus(const Integer &n) {m_n = n;}
00046 void SetPublicExponent(const Integer &e) {m_e = e;}
00047
00048 protected:
00049 Integer m_n, m_e;
00050 };
00051
00052
00053 class CRYPTOPP_DLL InvertibleRSAFunction : public RSAFunction, public TrapdoorFunctionInverse, public PKCS8PrivateKey
00054 {
00055 typedef InvertibleRSAFunction ThisClass;
00056
00057 public:
00058 void Initialize(RandomNumberGenerator &rng, unsigned int modulusBits, const Integer &e = 17);
00059 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)
00060 {m_n = n; m_e = e; m_d = d; m_p = p; m_q = q; m_dp = dp; m_dq = dq; m_u = u;}
00061
00062 void Initialize(const Integer &n, const Integer &e, const Integer &d);
00063
00064
00065 void BERDecode(BufferedTransformation &bt)
00066 {PKCS8PrivateKey::BERDecode(bt);}
00067 void DEREncode(BufferedTransformation &bt) const
00068 {PKCS8PrivateKey::DEREncode(bt);}
00069 void Load(BufferedTransformation &bt)
00070 {PKCS8PrivateKey::BERDecode(bt);}
00071 void Save(BufferedTransformation &bt) const
00072 {PKCS8PrivateKey::DEREncode(bt);}
00073 OID GetAlgorithmID() const {return RSAFunction::GetAlgorithmID();}
00074 void BERDecodePrivateKey(BufferedTransformation &bt, bool parametersPresent, size_t size);
00075 void DEREncodePrivateKey(BufferedTransformation &bt) const;
00076
00077
00078 Integer CalculateInverse(RandomNumberGenerator &rng, const Integer &x) const;
00079
00080
00081 bool Validate(RandomNumberGenerator &rng, unsigned int level) const;
00082
00083 void GenerateRandom(RandomNumberGenerator &rng, const NameValuePairs &alg);
00084 bool GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const;
00085 void AssignFrom(const NameValuePairs &source);
00086
00087
00088 const Integer& GetPrime1() const {return m_p;}
00089 const Integer& GetPrime2() const {return m_q;}
00090 const Integer& GetPrivateExponent() const {return m_d;}
00091 const Integer& GetModPrime1PrivateExponent() const {return m_dp;}
00092 const Integer& GetModPrime2PrivateExponent() const {return m_dq;}
00093 const Integer& GetMultiplicativeInverseOfPrime2ModPrime1() const {return m_u;}
00094
00095 void SetPrime1(const Integer &p) {m_p = p;}
00096 void SetPrime2(const Integer &q) {m_q = q;}
00097 void SetPrivateExponent(const Integer &d) {m_d = d;}
00098 void SetModPrime1PrivateExponent(const Integer &dp) {m_dp = dp;}
00099 void SetModPrime2PrivateExponent(const Integer &dq) {m_dq = dq;}
00100 void SetMultiplicativeInverseOfPrime2ModPrime1(const Integer &u) {m_u = u;}
00101
00102 protected:
00103 Integer m_d, m_p, m_q, m_dp, m_dq, m_u;
00104 };
00105
00106 class CRYPTOPP_DLL RSAFunction_ISO : public RSAFunction
00107 {
00108 public:
00109 Integer ApplyFunction(const Integer &x) const;
00110 Integer PreimageBound() const {return ++(m_n>>1);}
00111 };
00112
00113 class CRYPTOPP_DLL InvertibleRSAFunction_ISO : public InvertibleRSAFunction
00114 {
00115 public:
00116 Integer CalculateInverse(RandomNumberGenerator &rng, const Integer &x) const;
00117 Integer PreimageBound() const {return ++(m_n>>1);}
00118 };
00119
00120
00121 struct CRYPTOPP_DLL RSA
00122 {
00123 static const char * CRYPTOPP_API StaticAlgorithmName() {return "RSA";}
00124 typedef RSAFunction PublicKey;
00125 typedef InvertibleRSAFunction PrivateKey;
00126 };
00127
00128
00129 template <class STANDARD>
00130 struct RSAES : public TF_ES<STANDARD, RSA>
00131 {
00132 };
00133
00134
00135
00136 template <class STANDARD, class H>
00137 struct RSASS : public TF_SS<STANDARD, H, RSA>
00138 {
00139 };
00140
00141 struct CRYPTOPP_DLL RSA_ISO
00142 {
00143 static const char * CRYPTOPP_API StaticAlgorithmName() {return "RSA-ISO";}
00144 typedef RSAFunction_ISO PublicKey;
00145 typedef InvertibleRSAFunction_ISO PrivateKey;
00146 };
00147
00148 template <class H>
00149 struct RSASS_ISO : public TF_SS<P1363_EMSA2, H, RSA_ISO>
00150 {
00151 };
00152
00153
00154 typedef RSAES<PKCS1v15>::Decryptor RSAES_PKCS1v15_Decryptor;
00155 typedef RSAES<PKCS1v15>::Encryptor RSAES_PKCS1v15_Encryptor;
00156
00157 typedef RSAES<OAEP<SHA> >::Decryptor RSAES_OAEP_SHA_Decryptor;
00158 typedef RSAES<OAEP<SHA> >::Encryptor RSAES_OAEP_SHA_Encryptor;
00159
00160
00161 typedef RSASS<PKCS1v15, SHA>::Signer RSASSA_PKCS1v15_SHA_Signer;
00162 typedef RSASS<PKCS1v15, SHA>::Verifier RSASSA_PKCS1v15_SHA_Verifier;
00163
00164 typedef RSASS<PKCS1v15, MD2>::Signer RSASSA_PKCS1v15_MD2_Signer;
00165 typedef RSASS<PKCS1v15, MD2>::Verifier RSASSA_PKCS1v15_MD2_Verifier;
00166
00167 typedef RSASS<PKCS1v15, MD5>::Signer RSASSA_PKCS1v15_MD5_Signer;
00168 typedef RSASS<PKCS1v15, MD5>::Verifier RSASSA_PKCS1v15_MD5_Verifier;
00169
00170 NAMESPACE_END
00171
00172 #endif