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GOST R 34.11 hash

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orignal 2017-02-17 22:26:24 -05:00
parent c91b05bd4b
commit c1042c8f20
3 changed files with 51 additions and 22 deletions
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47
Crypto.cpp
View File

@ -8,7 +8,6 @@
#include <openssl/crypto.h>
#include "TunnelBase.h"
#include <openssl/ssl.h>
#include <openssl/engine.h>
#include "Log.h"
#include "Crypto.h"
@ -803,24 +802,40 @@ namespace crypto
}*/
static ENGINE * g_GostEngine = nullptr;
static bool InitGost ()
{
auto g_GostEngine = ENGINE_by_id ("gost");
if (!g_GostEngine)
{
ENGINE_load_builtin_engines ();
#if OPENSSL_API_COMPAT < 0x10100000L
ENGINE_load_dynamic ();
#endif
g_GostEngine = ENGINE_by_id ("gost");
if (!g_GostEngine) return false;
}
static const EVP_MD * g_Gost3411 = nullptr;
ENGINE_set_default (g_GostEngine, ENGINE_METHOD_ALL);
ENGINE * GetGostEngine ()
{
return g_GostEngine;
}
uint8_t * GOSTR3411 (const uint8_t * buf, size_t len, uint8_t * digest)
{
if (!g_Gost3411) return false;
auto ctx = EVP_MD_CTX_new ();
EVP_DigestInit_ex (ctx, g_Gost3411, GetGostEngine ());
EVP_DigestUpdate (ctx, buf, len);
EVP_DigestFinal_ex (ctx, digest, nullptr);
EVP_MD_CTX_free (ctx);
return digest;
}
bool InitGost ()
{
#if OPENSSL_API_COMPAT < 0x10100000L
ENGINE_load_builtin_engines ();
ENGINE_load_dynamic ();
#else
OPENSSL_init_crypto(OPENSSL_INIT_ENGINE_ALL_BUILTIN |, NULL);
#endif
g_GostEngine = ENGINE_by_id ("gost");
if (!g_GostEngine) return false;
g_Gost3411 = ENGINE_get_digest(g_GostEngine, NID_id_GostR3411_94);
return true;
}
static void TerminateGost ()
void TerminateGost ()
{
if (g_GostEngine)
{
@ -835,7 +850,6 @@ namespace crypto
void InitCrypto (bool precomputation, bool withGost)
{
SSL_library_init ();
if (withGost) InitGost ();
/* auto numLocks = CRYPTO_num_locks();
for (int i = 0; i < numLocks; i++)
m_OpenSSLMutexes.emplace_back (new std::mutex);
@ -865,7 +879,6 @@ namespace crypto
);
delete[] g_ElggTable; g_ElggTable = nullptr;
}
TerminateGost ();
/* CRYPTO_set_locking_callback (nullptr);
m_OpenSSLMutexes.clear ();*/
}

12
Crypto.h
View File

@ -12,6 +12,7 @@
#include <openssl/sha.h>
#include <openssl/evp.h>
#include <openssl/rand.h>
#include <openssl/engine.h>
#include "Base.h"
#include "Tag.h"
@ -278,6 +279,12 @@ namespace crypto
#endif
};
// GOST
bool InitGost ();
void TerminateGost ();
ENGINE * GetGostEngine ();
uint8_t * GOSTR3411 (const uint8_t * buf, size_t len, uint8_t * digest); // hash
void InitCrypto (bool precomputation, bool withGost = false);
void TerminateCrypto ();
}
@ -326,6 +333,11 @@ inline void DH_get0_key(const DH *dh, const BIGNUM **pub_key, const BIGNUM **pri
inline RSA *EVP_PKEY_get0_RSA(EVP_PKEY *pkey)
{ return pkey->pkey.rsa; }
inline EVP_MD_CTX *EVP_MD_CTX_new ()
{ return EVP_MD_CTX_create(); }
inline void EVP_MD_CTX_free (EVP_MD_CTX *ctx)
{ EVP_MD_CTX_destroy (ctx); }
// ssl
#define TLS_method TLSv1_method

14
Signature.h
View File

@ -464,9 +464,11 @@ namespace crypto
bool Verify (const uint8_t * buf, size_t len, const uint8_t * signature) const
{
EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new (m_PublicKey, nullptr);
uint8_t digest[32];
GOSTR3411 (buf, len, digest);
EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new (m_PublicKey, GetGostEngine ());
EVP_PKEY_verify_init (ctx);
int ret = EVP_PKEY_verify (ctx, signature, GOSTR3410_SIGNATURE_LENGTH, buf, len);
int ret = EVP_PKEY_verify (ctx, signature, GOSTR3410_SIGNATURE_LENGTH, digest, 32);
EVP_PKEY_CTX_free (ctx);
return ret == 1;
}
@ -494,10 +496,12 @@ namespace crypto
void Sign (const uint8_t * buf, int len, uint8_t * signature) const
{
EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new (m_PrivateKey, nullptr);
uint8_t digest[32];
GOSTR3411 (buf, len, digest);
EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new (m_PrivateKey, GetGostEngine ());
EVP_PKEY_sign_init (ctx);
size_t l = GOSTR3410_SIGNATURE_LENGTH;
EVP_PKEY_sign (ctx, signature, &l, buf, len);
EVP_PKEY_sign (ctx, signature, &l, digest, 32);
EVP_PKEY_CTX_free (ctx);
}
@ -508,7 +512,7 @@ namespace crypto
inline void CreateGOSTR3410RandomKeys (uint8_t * signingPrivateKey, uint8_t * signingPublicKey)
{
auto ctx = EVP_PKEY_CTX_new_id(NID_id_GostR3410_2001, nullptr);
auto ctx = EVP_PKEY_CTX_new_id(NID_id_GostR3410_2001, GetGostEngine ());
EVP_PKEY_keygen_init (ctx);
EVP_PKEY_CTX_ctrl_str (ctx, "paramset", "A");
EVP_PKEY* pkey = nullptr;