/// <summary>Generate a certification for the passed in userAttributes.</summary>
/// <param name="userAttributes">The ID we are certifying against the public key.</param>
/// <param name="pubKey">The key we are certifying against the ID.</param>
/// <returns>The certification.</returns>
public PgpSignature GenerateCertification(
PgpUserAttributeSubpacketVector userAttributes,
PgpPublicKey pubKey)
{
UpdateWithPublicKey(pubKey);
//
// hash in the attributes
//
try
{
MemoryStream bOut = new MemoryStream();
foreach (UserAttributeSubpacket packet in userAttributes.ToSubpacketArray())
{
packet.Encode(bOut);
}
UpdateWithIdData(0xd1, bOut.ToArray());
}
catch (IOException e)
{
throw new PgpException("cannot encode subpacket array", e);
}
return(this.Generate());
}
/// <summary>
/// Verify the signature as certifying the passed in public key as associated
/// with the passed in user attributes.
/// </summary>
/// <param name="userAttributes">User attributes the key was stored under.</param>
/// <param name="key">The key to be verified.</param>
/// <returns>True, if the signature matches, false otherwise.</returns>
public bool VerifyCertification(
PgpUserAttributeSubpacketVector userAttributes,
PgpPublicKey key)
{
UpdateWithPublicKey(key);
//
// hash in the userAttributes
//
try
{
MemoryStream bOut = new MemoryStream();
foreach (UserAttributeSubpacket packet in userAttributes.ToSubpacketArray())
{
packet.Encode(bOut);
}
UpdateWithIdData(0xd1, bOut.ToArray());
}
catch (IOException e)
{
throw new PgpException("cannot encode subpacket array", e);
}
this.Update(sigPck.GetSignatureTrailer());
return(sig.VerifySignature(this.GetSignature()));
}
public void Encode(
Stream outStr)
{
BcpgOutputStream bcpgOut = BcpgOutputStream.Wrap(outStr);
bcpgOut.WritePacket(publicPk);
if (trustPk != null)
{
bcpgOut.WritePacket(trustPk);
}
if (subSigs == null) // not a sub-key
{
foreach (PgpSignature keySig in keySigs)
{
keySig.Encode(bcpgOut);
}
for (int i = 0; i != ids.Count; i++)
{
if (ids[i] is string)
{
string id = (string)ids[i];
bcpgOut.WritePacket(new UserIdPacket(id));
}
else
{
PgpUserAttributeSubpacketVector v = (PgpUserAttributeSubpacketVector)ids[i];
bcpgOut.WritePacket(new UserAttributePacket(v.ToSubpacketArray()));
}
if (idTrusts[i] != null)
{
bcpgOut.WritePacket((ContainedPacket)idTrusts[i]);
}
foreach (PgpSignature sig in (IList)idSigs[i])
{
sig.Encode(bcpgOut);
}
}
}
else
{
foreach (PgpSignature subSig in subSigs)
{
subSig.Encode(bcpgOut);
}
}
}
