GetPrimeCurveParameterBlob() [2/2]

static unsafe byte[] System.Security.Cryptography.ECCng.GetPrimeCurveParameterBlob ( ref ECCurve curve )

inlinestaticpackage

Definition at line 225 of file ECCng.cs.

    {
        int num = sizeof(global::Interop.BCrypt.BCRYPT_ECC_PARAMETER_HEADER) + curve.Prime.Length + curve.A.Length + curve.B.Length + curve.G.X.Length + curve.G.Y.Length + curve.Order.Length + curve.Cofactor.Length + ((curve.Seed != null) ? curve.Seed.Length : 0);
        byte[] array = new byte[num];
        fixed (byte* ptr = &array[0])
        {
            global::Interop.BCrypt.BCRYPT_ECC_PARAMETER_HEADER* ptr2 = (global::Interop.BCrypt.BCRYPT_ECC_PARAMETER_HEADER*)ptr;
            ptr2->Version = 1;
            ptr2->cbCofactor = curve.Cofactor.Length;
            ptr2->cbFieldLength = curve.A.Length;
            ptr2->cbSeed = ((curve.Seed != null) ? curve.Seed.Length : 0);
            ptr2->cbSubgroupOrder = curve.Order.Length;
            ptr2->CurveGenerationAlgId = GetHashAlgorithmId(curve.Hash);
            ptr2->CurveType = ConvertToCurveTypeEnum(curve.CurveType);
            int offset = sizeof(global::Interop.BCrypt.BCRYPT_ECC_PARAMETER_HEADER);
            global::Interop.BCrypt.Emit(array, ref offset, curve.Prime);
            global::Interop.BCrypt.Emit(array, ref offset, curve.A);
            global::Interop.BCrypt.Emit(array, ref offset, curve.B);
            global::Interop.BCrypt.Emit(array, ref offset, curve.G.X);
            global::Interop.BCrypt.Emit(array, ref offset, curve.G.Y);
            global::Interop.BCrypt.Emit(array, ref offset, curve.Order);
            global::Interop.BCrypt.Emit(array, ref offset, curve.Cofactor);
            if (curve.Seed != null)
            {
                global::Interop.BCrypt.Emit(array, ref offset, curve.Seed);
            }
        }
        return array;
    }

References System.array, System.Security.Cryptography.ECCng.ConvertToCurveTypeEnum(), System.Security.Cryptography.ECCng.GetHashAlgorithmId(), and System.offset.