1 files changed, 174 insertions, 0 deletions

diff --git a/CryptoPP/rsa.h b/CryptoPP/rsa.h
new file mode 100644
index 000000000..6a8b18525
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+++ 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