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GOST R 34.10 param sets

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orignal 2017-03-08 19:35:51 -05:00
parent 5dfb7cb938
commit 831c835106
2 changed files with 80 additions and 10 deletions
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78
Signature.cpp
View File

@ -1,4 +1,5 @@
#include <memory>
#include <array>
#include "Log.h"
#include "Signature.h"
@ -496,32 +497,89 @@ namespace crypto
//----------------------------------------------
// GOST
class GOSTR3410
class GOSTR3410Curve
{
public:
GOSTR3410 (BIGNUM * a, BIGNUM * b, BIGNUM * p, BIGNUM * q, BIGNUM * x, BIGNUM * y)
GOSTR3410Curve (BIGNUM * a, BIGNUM * b, BIGNUM * p, BIGNUM * q, BIGNUM * x, BIGNUM * y)
{
BN_CTX * ctx = BN_CTX_new ();
m_Curve = EC_GROUP_new_curve_GFp (p, a, b, ctx);
EC_POINT * P = EC_POINT_new (m_Curve);
EC_POINT_set_affine_coordinates_GFp (m_Curve, P, x, y, ctx);
EC_GROUP_set_generator (m_Curve, P, q, nullptr);
EC_GROUP_set_curve_name (m_Curve, NID_id_GostR3410_2001);
m_Group = EC_GROUP_new_curve_GFp (p, a, b, ctx);
EC_POINT * P = EC_POINT_new (m_Group);
EC_POINT_set_affine_coordinates_GFp (m_Group, P, x, y, ctx);
EC_GROUP_set_generator (m_Group, P, q, nullptr);
EC_GROUP_set_curve_name (m_Group, NID_id_GostR3410_2001);
EC_POINT_free(P);
BN_CTX_free (ctx);
}
~GOSTR3410 ()
~GOSTR3410Curve ()
{
EC_GROUP_free (m_Curve);
EC_GROUP_free (m_Group);
}
private:
EC_GROUP * m_Curve;
EC_GROUP * m_Group;
};
GOSTR3410Curve * CreateGOSTR3410Curve (GOSTR3410ParamSet paramSet)
{
// a, b, p, q, x, y
static const char * params[eGOSTR3410NumParamSets][6] =
{
{
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFD94",
"A6",
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFD97",
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF6C611070995AD10045841B09B761B893",
"1",
"8D91E471E0989CDA27DF505A453F2B7635294F2DDF23E3B122ACC99C9E9F1E14"
}, // A
{
"8000000000000000000000000000000000000000000000000000000000000C96",
"3E1AF419A269A5F866A7D3C25C3DF80AE979259373FF2B182F49D4CE7E1BBC8B",
"8000000000000000000000000000000000000000000000000000000000000C99",
"800000000000000000000000000000015F700CFFF1A624E5E497161BCC8A198F",
"1",
"3FA8124359F96680B83D1C3EB2C070E5C545C9858D03ECFB744BF8D717717EFC"
}, // B
{
"9B9F605F5A858107AB1EC85E6B41C8AACF846E86789051D37998F7B9022D7598",
"805A",
"9B9F605F5A858107AB1EC85E6B41C8AACF846E86789051D37998F7B9022D759B",
"9B9F605F5A858107AB1EC85E6B41C8AA582CA3511EDDFB74F02F3A6598980BB9",
"0",
"41ECE55743711A8C3CBF3783CD08C0EE4D4DC440D4641A8F366E550DFDB3BB67"
} // C
};
BIGNUM * a = nullptr, * b = nullptr, * p = nullptr, * q =nullptr, * x = nullptr, * y = nullptr;
BN_hex2bn(&a, params[paramSet][0]);
BN_hex2bn(&b, params[paramSet][1]);
BN_hex2bn(&p, params[paramSet][2]);
BN_hex2bn(&q, params[paramSet][3]);
BN_hex2bn(&x, params[paramSet][4]);
BN_hex2bn(&y, params[paramSet][5]);
auto curve = new GOSTR3410Curve (a, b, p, q, x, y);
BN_free (a); BN_free (b); BN_free (p); BN_free (q); BN_free (x); BN_free (y);
return curve;
}
static std::array<std::unique_ptr<GOSTR3410Curve>, eGOSTR3410NumParamSets> g_GOSTR3410Curves;
std::unique_ptr<GOSTR3410Curve>& GetGOSTR3410Curve (GOSTR3410ParamSet paramSet)
{
if (!g_GOSTR3410Curves[paramSet])
{
auto c = CreateGOSTR3410Curve (paramSet);
if (!g_GOSTR3410Curves[paramSet]) // make sure it was not created already
g_GOSTR3410Curves[paramSet].reset (c);
else
delete c;
}
return g_GOSTR3410Curves[paramSet];
}
}
}

12
Signature.h
View File

@ -443,6 +443,18 @@ namespace crypto
}
// ГОСТ Р 34.10-2001
enum GOSTR3410ParamSet
{
eGOSTR3410CryptoProA = 0, // 1.2.643.2.2.35.1
eGOSTR3410CryptoProB, // 1.2.643.2.2.35.2
eGOSTR3410CryptoProC, // 1.2.643.2.2.35.3
//eGOSTR3410CryptoProXchA, // 1.2.643.2.2.36.0
//eGOSTR3410CryptoProXchB, // 1.2.643.2.2.36.1
// XchA = A, XchB = C
eGOSTR3410NumParamSets
};
const size_t GOSTR3410_PUBLIC_KEY_LENGTH = 64;
const size_t GOSTR3410_SIGNATURE_LENGTH = 64;