/* * RSAPrivateKey ::= SEQUENCE { * version Version, * modulus INTEGER, -- n * publicExponent INTEGER, -- e * privateExponent INTEGER, -- d * prime1 INTEGER, -- p * prime2 INTEGER, -- q * exponent1 INTEGER, -- d mod (p-1) * exponent2 INTEGER, -- d mod (q-1) * coefficient INTEGER, -- (inverse of q) mod p * otherPrimeInfos OtherPrimeInfos OPTIONAL * } */ static public byte[] Encode(RSA rsa) { RSAParameters param = rsa.ExportParameters(true); ASN1 rsaPrivateKey = new ASN1(0x30); rsaPrivateKey.Add(new ASN1(0x02, new byte[1] { 0x00 })); rsaPrivateKey.Add(ASN1Convert.FromUnsignedBigInteger(param.Modulus)); rsaPrivateKey.Add(ASN1Convert.FromUnsignedBigInteger(param.Exponent)); rsaPrivateKey.Add(ASN1Convert.FromUnsignedBigInteger(param.D)); rsaPrivateKey.Add(ASN1Convert.FromUnsignedBigInteger(param.P)); rsaPrivateKey.Add(ASN1Convert.FromUnsignedBigInteger(param.Q)); rsaPrivateKey.Add(ASN1Convert.FromUnsignedBigInteger(param.DP)); rsaPrivateKey.Add(ASN1Convert.FromUnsignedBigInteger(param.DQ)); rsaPrivateKey.Add(ASN1Convert.FromUnsignedBigInteger(param.InverseQ)); return(rsaPrivateKey.GetBytes()); }
static public byte[] Encode(DSA dsa) { DSAParameters param = dsa.ExportParameters(true); return(ASN1Convert.FromUnsignedBigInteger(param.X).GetBytes()); }