/**
* return true if the internal state represents the signature described
* in the passed in array.
*/
public bool verifySignature(byte[] signature)
{
byte[] hash = new byte[digest.getDigestSize()];
digest.doFinal(hash, 0);
BigInteger[] sig;
try
{
sig = derDecode(signature);
} catch
{
throw new Exception("Error decoding signature bytes.");
}
return(dsaSigner.verifySignature(hash, sig[0], sig[1]));
}