Bouncy Castle Cryptography Library 1.49

org.bouncycastle.cert
Class X509ExtensionUtils

java.lang.Object
  extended by org.bouncycastle.cert.X509ExtensionUtils
Direct Known Subclasses:
BcX509ExtensionUtils, JcaX509ExtensionUtils

public class X509ExtensionUtils
extends java.lang.Object

General utility class for creating calculated extensions using the standard methods.

Note: This class is not thread safe!


Constructor Summary
X509ExtensionUtils(DigestCalculator calculator)
           
 
Method Summary
 org.bouncycastle.asn1.x509.AuthorityKeyIdentifier createAuthorityKeyIdentifier(org.bouncycastle.asn1.x509.SubjectPublicKeyInfo publicKeyInfo)
           
 org.bouncycastle.asn1.x509.AuthorityKeyIdentifier createAuthorityKeyIdentifier(X509CertificateHolder certHolder)
           
 org.bouncycastle.asn1.x509.SubjectKeyIdentifier createSubjectKeyIdentifier(org.bouncycastle.asn1.x509.SubjectPublicKeyInfo publicKeyInfo)
          Return a RFC 3280 type 1 key identifier.
 org.bouncycastle.asn1.x509.SubjectKeyIdentifier createTruncatedSubjectKeyIdentifier(org.bouncycastle.asn1.x509.SubjectPublicKeyInfo publicKeyInfo)
          Return a RFC 3280 type 2 key identifier.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

X509ExtensionUtils

public X509ExtensionUtils(DigestCalculator calculator)
Method Detail

createAuthorityKeyIdentifier

public org.bouncycastle.asn1.x509.AuthorityKeyIdentifier createAuthorityKeyIdentifier(X509CertificateHolder certHolder)

createAuthorityKeyIdentifier

public org.bouncycastle.asn1.x509.AuthorityKeyIdentifier createAuthorityKeyIdentifier(org.bouncycastle.asn1.x509.SubjectPublicKeyInfo publicKeyInfo)

createSubjectKeyIdentifier

public org.bouncycastle.asn1.x509.SubjectKeyIdentifier createSubjectKeyIdentifier(org.bouncycastle.asn1.x509.SubjectPublicKeyInfo publicKeyInfo)
Return a RFC 3280 type 1 key identifier. As in:
 (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).
 

Parameters:
publicKeyInfo - the key info object containing the subjectPublicKey field.
Returns:
the key identifier.

createTruncatedSubjectKeyIdentifier

public org.bouncycastle.asn1.x509.SubjectKeyIdentifier createTruncatedSubjectKeyIdentifier(org.bouncycastle.asn1.x509.SubjectPublicKeyInfo publicKeyInfo)
Return a RFC 3280 type 2 key identifier. As in:
 (2) The keyIdentifier is composed of a four bit type field with
 the value 0100 followed by the least significant 60 bits of the
 SHA-1 hash of the value of the BIT STRING subjectPublicKey.
 

Parameters:
publicKeyInfo - the key info object containing the subjectPublicKey field.
Returns:
the key identifier.

Bouncy Castle Cryptography Library 1.49