/// <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>Remove a certification associated with a given user attributes on a key.</summary>
/// <param name="key">The key the certifications are to be removed from.</param>
/// <param name="userAttributes">The user attributes that the certfication is to be removed from.</param>
/// <param name="certification">The certification to be removed.</param>
/// <returns>The re-certified key, or null if the certification was not found.</returns>
public static PgpPublicKey RemoveCertification(
PgpPublicKey key,
PgpUserAttributeSubpacketVector userAttributes,
PgpSignature certification)
{
return(RemoveCert(key, userAttributes, certification));
}
/// <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 override bool Equals(
object obj)
{
if (obj == this)
{
return(true);
}
PgpUserAttributeSubpacketVector other = obj as PgpUserAttributeSubpacketVector;
if (other == null)
{
return(false);
}
if (other.packets.Length != packets.Length)
{
return(false);
}
for (int i = 0; i != packets.Length; i++)
{
if (!other.packets[i].Equals(packets[i]))
{
return(false);
}
}
return(true);
}
/// <summary>Allows enumeration of signatures associated with the passed in user attributes.</summary>
/// <param name="userAttributes">The vector of user attributes to be matched.</param>
/// <returns>An <c>IEnumerable</c> of <c>PgpSignature</c> objects.</returns>
public IEnumerable GetSignaturesForUserAttribute(
PgpUserAttributeSubpacketVector userAttributes)
{
for (int i = 0; i != ids.Count; i++)
{
if (userAttributes.Equals(ids[i]))
{
return(new EnumerableProxy((IList)idSigs[i]));
}
}
return(null);
}
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);
}
}
}
