/**
* Calculates the keyIdentifier using a SHA1 hash over the BIT STRING
* from SubjectPublicKeyInfo as defined in RFC3280.
*
* @param spki the subject public key info.
*/
public SubjectKeyIdentifier(
SubjectPublicKeyInfo spki)
{
this.keyIdentifier = GetDigest(spki);
}
public void SetSubjectPublicKeyInfo(
SubjectPublicKeyInfo pubKeyInfo)
{
this.subjectPublicKeyInfo = pubKeyInfo;
}
/**
* Return a RFC 3280 type 1 key identifier. As in:
* <pre>
* (1) The keyIdentifier is composed of the 160-bit SHA-1 hash of the
* value of the BIT STRING subjectPublicKey (excluding the tag,
* length, and number of unused bits).
* </pre>
* @param keyInfo the key info object containing the subjectPublicKey field.
* @return the key identifier.
*/
public static SubjectKeyIdentifier CreateSha1KeyIdentifier(
SubjectPublicKeyInfo keyInfo)
{
return(new SubjectKeyIdentifier(keyInfo));
}
