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);
}
public AsnPublicKeyPair()
{
RSACryptoServiceProvider prov = new RSACryptoServiceProvider(2048);
parameters = prov.ExportParameters(false);
modulus = new AsnInteger(parameters.Modulus);
exponent = new AsnInteger(parameters.Exponent);
}
public AsnPrivateKeyPair(int keyLength)
{
RSACryptoServiceProvider prov = new RSACryptoServiceProvider(keyLength);
parameters = prov.ExportParameters(true);
version = new AsnInteger(0);
modulus = new AsnInteger(parameters.Modulus);
exponent = new AsnInteger(parameters.Exponent);
privateExponent = new AsnInteger(parameters.D);
prime1 = new AsnInteger(parameters.P);
prime2 = new AsnInteger(parameters.Q);
exp1 = new AsnInteger(parameters.DP);
exp2 = new AsnInteger(parameters.DQ);
coefficient = new AsnInteger(parameters.InverseQ);
}
public AsnToBeSignedCertificate()
{
version = new AsnInteger(2);
issuer = new AsnName();
subject = new AsnName();
//issuerUniqueID = new AsnBitstring();
//issuerUniqueID.contextTag = 1;
//subjectUniqueID = new AsnBitstring();
//subjectUniqueID.contextTag = 2;
//extensions = new AsnExtensions();
//extensions.contextTag = 3;
}
public static AsnCertificationRequestInfo Decode(byte[] source, ref int pos)
{
AsnCertificationRequestInfo instance = new AsnCertificationRequestInfo();
//CheckContextTag(source, ref pos);
pos++;
// get the sequence length
long len = instance.GetLength(source, ref pos);
instance.elements.Add(AsnInteger.Decode(source, ref pos));
instance.elements.Add(AsnName.Decode(source, ref pos));
instance.elements.Add(AsnPublicKeyInfo.Decode(source, ref pos));
instance.elements.Add(AsnAttributes.Decode(source, ref pos));
return(instance);
}
public static AsnPublicKeyPair Decode(byte[] source, ref int pos)
{
AsnPublicKeyPair instance = new AsnPublicKeyPair();
pos++;
long len = instance.GetLength(source, ref pos);
instance.modulus = AsnInteger.Decode(source, ref pos);
instance.exponent = 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();
return(instance);
}
public static AsnToBeSignedCertificate Decode(byte[] source, ref int pos)
{
AsnToBeSignedCertificate instance = new AsnToBeSignedCertificate();
//instance.CheckContextTag(source, ref pos);
pos++;
int len = instance.GetLength(source, ref pos);
// peek into the next byte to see if we have an explicit tag (should be there)
if (source[pos] == 0xa0)
{
pos++;
len = instance.GetLength(source, ref pos);
}
instance.version = AsnInteger.Decode(source, ref pos);
instance.serialNumber = AsnInteger.Decode(source, ref pos);
instance.signature = AsnAlgorithmIdentifier.Decode(source, ref pos);
instance.issuer = AsnName.Decode(source, ref pos);
instance.validity = AsnValidity.Decode(source, ref pos);
instance.subject = AsnName.Decode(source, ref pos);
instance.subjectPKInfo = AsnPublicKeyInfo.Decode(source, ref pos);
if (source[pos] == 0xa1)
{
pos++;
instance.GetLength(source, ref pos);
instance.issuerUniqueID = AsnBitstring.Decode(source, ref pos);
}
if (source[pos] == 0xa2)
{
pos++;
instance.GetLength(source, ref pos);
instance.subjectUniqueID = AsnBitstring.Decode(source, ref pos);
}
if (source[pos] == 0xa3)
{
pos++;
instance.GetLength(source, ref pos);
instance.extensions = AsnExtensions.Decode(source, ref pos);
}
return(instance);
}
public static AsnInteger Decode(byte[] source, ref int pos)
{
//CheckContextTag(source, ref pos);
pos++;
// length and value in subsequent bytes
int length = AsnType.GetLength(source, ref pos);
byte[] raw = new byte[length];
Array.Copy(source, pos, raw, 0, length);
AsnInteger instance = new AsnInteger(raw);
pos += length;
return(instance);
//foreach (byte b in value.ToByteArray())
//{
// Console.Write("{0:X2} ", b);
//}
//Console.WriteLine(value);
}
