public static AsnPrivateKeyPair Decode(byte[] source, ref int pos)
{
AsnPrivateKeyPair instance = new AsnPrivateKeyPair();
pos++;
long len = instance.GetLength(source, ref pos);
instance.version = AsnInteger.Decode(source, ref pos);
instance.modulus = AsnInteger.Decode(source, ref pos);
instance.exponent = AsnInteger.Decode(source, ref pos);
instance.privateExponent = AsnInteger.Decode(source, ref pos);
instance.prime1 = AsnInteger.Decode(source, ref pos);
instance.prime2 = AsnInteger.Decode(source, ref pos);
instance.exp1 = AsnInteger.Decode(source, ref pos);
instance.exp2 = AsnInteger.Decode(source, ref pos);
instance.coefficient = AsnInteger.Decode(source, ref pos);
// bring the parameters into an RSA format
instance.parameters.Modulus = instance.modulus.myValue.ToByteArray();
instance.parameters.Exponent = instance.exponent.myValue.ToByteArray();
instance.parameters.D = instance.privateExponent.myValue.ToByteArray();
instance.parameters.P = instance.prime1.myValue.ToByteArray();
instance.parameters.Q = instance.prime2.myValue.ToByteArray();
instance.parameters.DP = instance.exp1.myValue.ToByteArray();
instance.parameters.DQ = instance.exp2.myValue.ToByteArray();
instance.parameters.InverseQ = instance.coefficient.myValue.ToByteArray();
return(instance);
}
// sign the TBS certificate with the CA key or intermediate key, returns the signed certificate ready for deployment
public AsnCertificate Sign(AsnPrivateKeyPair key)
{
AsnCertificate cert = new AsnCertificate(this);
Encode();
RSA rsa = RSA.Create();
rsa.ImportParameters(key.parameters);
cert.signatureAlgorithm.algorithmID.value = new Oid("1.2.840.113549.1.1.11"); // sha256withRSA
cert.signature = new AsnBitstring(rsa.SignData(derValue, HashAlgorithmName.SHA256, RSASignaturePadding.Pkcs1));
return(cert);
}
public static AsnPrivateKeyInfo Decode(byte[] source, ref int pos)
{
AsnPrivateKeyInfo instance = new AsnPrivateKeyInfo();
//CheckContextTag(source, ref pos);
pos++;
int len = instance.GetLength(source, ref pos);
instance.algorithm = AsnAlgorithmIdentifier.Decode(source, ref pos);
instance.publicKey = AsnBitstring.Decode(source, ref pos);
// TODO: further decode publicKey into AsnKeyPair
int bi = 0;
instance.keys = AsnPrivateKeyPair.Decode(instance.publicKey.value, ref bi);
return(instance);
}
public AsnPrivateKeyInfo()
{
algorithm = new AsnAlgorithmIdentifier();
publicKey = new AsnBitstring();
keys = new AsnPrivateKeyPair();
}
