/**
*
* Calulates the keyidentifier using a SHA1 hash over the BIT STRING
* from SubjectPublicKeyInfo as defined in RFC2459.
*
* Example of making a AuthorityKeyIdentifier:
* <pre>
* SubjectPublicKeyInfo apki = new SubjectPublicKeyInfo((ASN1Sequence)new ASN1InputStream(
* publicKey.getEncoded()).readObject());
* AuthorityKeyIdentifier aki = new AuthorityKeyIdentifier(apki);
* </pre>
*
**/
public AuthorityKeyIdentifier(
SubjectPublicKeyInfo spki)
{
byte[] bytes = spki.PublicKeyData.GetBytes();
byte[] resBuf = Digests.DoFinal(new Sha1Digest(), bytes, 0, bytes.Length);
this.keyidentifier = new DerOctetString(resBuf);
}
/**
* create an AuthorityKeyIdentifier with the GeneralNames tag and
* the serial number provided as well.
*/
public AuthorityKeyIdentifier(
SubjectPublicKeyInfo spki,
GeneralNames name,
BigInteger serialNumber)
{
byte[] bytes = spki.PublicKeyData.GetBytes();
byte[] resBuf = Digests.DoFinal(new Sha1Digest(), bytes, 0, bytes.Length);
this.keyidentifier = new DerOctetString(resBuf);
this.certissuer = name;
this.certserno = new DerInteger(serialNumber);
}
public bool HasTestPassed(IXof digest)
{
byte[] result = Digests.DoFinal(digest, stdShaVector, 0, stdShaVector.Length);
return(Arrays.AreEqual(result, kat));
}
private BigInteger Digest(IDigest hash, byte[] input)
{
byte[] res = Digests.DoFinal(hash, input, 0, input.Length);
return(new BigInteger(1, res));
}
public byte[] Generate(byte[] agreed)
{
return(Digests.DoFinal(FipsShs.CreateDigest(digestAlg), agreed, 0, agreed.Length));
}
private static byte[] GetDigest(SubjectPublicKeyInfo spki)
{
byte[] bytes = spki.PublicKeyData.GetBytes();
return(Digests.DoFinal(new Sha1Digest(), bytes, 0, bytes.Length));
}
public byte[] Collect()
{
return(Digests.DoFinal(digest));
}