GabrielTofvesson
b7e8a1d439
Added some convenient stuff to BigInteger Did a tiny rename (looks like not all of the SHA project was renamed but meh who cares for now)
65 lines
1.8 KiB
C++
65 lines
1.8 KiB
C++
#pragma once
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#include "Primes.h"
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#include "BigInteger.h"
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#if defined(__MINGW32__) || defined(_WIN32)
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#if defined(RSA_API)
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#undef RSA_API
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#define RSA_API __declspec(dllexport)
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#else
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#define RSA_API __declspec(dllimport)
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#endif
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#endif
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#ifndef RSA_API
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#if __GNUC__ >= 4
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#define RSA_API __attribute__ ((visibility ("default")))
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#else
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#define RSA_API
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#endif
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#endif
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namespace CryptoCPP { namespace RSA {
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struct PublicKey
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{
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Math::BigInteger * mod;
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Math::BigInteger * exp;
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};
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typedef Math::BigInteger PrivateKey;
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struct KeyPair {
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PublicKey * pub;
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PrivateKey * priv;
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};
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class RSA
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{
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public:
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RSA_API RSA(KeyPair* pair);
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RSA_API char* encrypt(char* message); // Encrypt with public key
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RSA_API char* sign(char* message); // Encrypt with private key
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RSA_API char* decrypt(char* cipher); // Decrypt with private key
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RSA_API char* check_sign(char* cipher); // Decrypt with public key
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RSA_API bool can_decrypt(); // Checks whether or not we have a private key
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RSA_API char* serialize_net(); // Serializes public key
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RSA_API char* serialize_all(); // Complete serialization (public + private key). NOTE: Should NEVER be transmitted over an insecure channel. This should preferably be kept to the local file system
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RSA_API static RSA * deserialize(char* ser);// Deserializes a serialized RSA object. Autodetects whether or not a private key is available
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protected:
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KeyPair * keypair;
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RSA_API static char* encrypt(char* message, Math::BigInteger * exp, Math::BigInteger * mod); // Internal encryption function. exp can be either public or private exponent
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RSA_API static char* decrypt(char* message, Math::BigInteger * exp, Math::BigInteger * mod); // Internal decryption function. -||-
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};
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typedef char(*RandomProvider)();
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KeyPair* generate_key_pair(RandomProvider provider, size_t approximate_byte_count, size_t byte_margin);
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}} |