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