/// <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(IPgpUserAttributeSubpacketVector userAttributes, IPgpPublicKey key)
{
UpdateWithPublicKey(key);
//
// hash in the userAttributes
//
try
{
using (var bOut = new MemoryStream())
{
foreach (var 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()));
}
/// <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 <IPgpSignature> GetSignaturesForUserAttribute(IPgpUserAttributeSubpacketVector userAttributes)
{
for (var i = 0; i != _ids.Count; i++)
{
if (userAttributes.Equals(_ids[i]))
{
return(_idSigs[i]);
}
}
return(null);
}
/// <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<IPgpSignature> GetSignaturesForUserAttribute(IPgpUserAttributeSubpacketVector userAttributes)
{
for (var i = 0; i != _ids.Count; i++)
{
if (userAttributes.Equals(_ids[i]))
{
return _idSigs[i];
}
}
return null;
}
/// <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(IPgpPublicKey key, IPgpUserAttributeSubpacketVector userAttributes, PgpSignature certification)
{
return RemoveCert(key, userAttributes, certification);
}
/// <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(IPgpPublicKey key, IPgpUserAttributeSubpacketVector 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(IPgpUserAttributeSubpacketVector userAttributes, IPgpPublicKey key)
{
UpdateWithPublicKey(key);
//
// hash in the userAttributes
//
try
{
using (var bOut = new MemoryStream())
{
foreach (var 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());
}
