Cross Reference: /openjdk7/jdk/src/share/classes/java/security/Signature.java

Lines Matching defs:signature
51  * of a digital signature algorithm. Digital signatures are used for
54  * <p> The signature algorithm can be, among others, the NIST standard
66  * either signing data or verifying a signature:<ol>
72  *     <li>a public key, which initializes the signature for
76  *     which initializes the signature for signing
88  * <li>Signing or Verifying a signature on all updated bytes. See the
99  * supply their own implementations of digital signature algorithms.
125      * The algorithm for this signature object.
136      * this signature object has not yet been initialized.
142      * this signature object has been initialized for signing.
148      * this signature object has been initialized for verification.
153      * Current state of this signature object.
170     // name of the special signature alg
188      * Returns a Signature object that implements the specified signature
308      * Returns a Signature object that implements the specified signature
362      * signature algorithm.
426      * Returns the provider of this signature object.
428      * @return the provider of this signature object
444      * @param publicKey the public key of the identity whose signature is
465      * @param certificate the certificate of the identity whose signature is
470      * information or cannot be used for digital signature purposes.
504      * @param privateKey the private key of the identity whose signature
520      * @param privateKey the private key of the identity whose signature
523      * @param random the source of randomness for this signature.
534      * Returns the signature bytes of all the data updated.
535      * The format of the signature depends on the underlying
536      * signature scheme.
538      * <p>A call to this method resets this signature object to the state
541      * reset and available to generate another signature from the same
545      * @return the signature bytes of the signing operation's result.
547      * @exception SignatureException if this signature object is not
548      * initialized properly or if this signature algorithm is unable to
560      * Finishes the signature operation and stores the resulting signature
563      * The format of the signature depends on the underlying
564      * signature scheme.
566      * <p>This signature object is reset to its initial state (the state it
570      * @param outbuf buffer for the signature result.
572      * @param offset offset into <code>outbuf</code> where the signature is
576      * signature.
580      * @exception SignatureException if this signature object is not
581      * initialized properly, if this signature algorithm is unable to
583      * than the actual signature length.
604      * Verifies the passed-in signature.
606      * <p>A call to this method resets this signature object to the state
609      * reset and available to verify another signature from the identity
612      * @param signature the signature bytes to be verified.
614      * @return true if the signature was verified, false if not.
616      * @exception SignatureException if this signature object is not
617      * initialized properly, the passed-in signature is improperly
618      * encoded or of the wrong type, if this signature algorithm is unable to
621     public final boolean verify(byte[] signature) throws SignatureException {
623             return engineVerify(signature);
630      * Verifies the passed-in signature in the specified array
633      * <p>A call to this method resets this signature object to the state
636      * reset and available to verify another signature from the identity
640      * @param signature the signature bytes to be verified.
644      * @return true if the signature was verified, false if not.
646      * @exception SignatureException if this signature object is not
647      * initialized properly, the passed-in signature is improperly
648      * encoded or of the wrong type, if this signature algorithm is unable to
650      * @exception IllegalArgumentException if the <code>signature</code>
654      * <code>signature</code> byte array.
657     public final boolean verify(byte[] signature, int offset, int length)
660             if ((signature == null) || (offset < 0) || (length < 0) ||
661                 (length > signature.length - offset)) {
665             return engineVerify(signature, offset, length);
676      * @exception SignatureException if this signature object is not
684                                          + "signature or verification");
694      * @exception SignatureException if this signature object is not
709      * @exception SignatureException if this signature object is not
718                                          + "signature or verification");
731      * @exception SignatureException if this signature object is not
738                                          + "signature or verification");
747      * Returns the name of the algorithm for this signature object.
749      * @return the name of the algorithm for this signature object.
756      * Returns a string representation of this signature object,
760      * @return a string representation of this signature object.
783      * a parameter size, or a source of random bits for signature generation
793      * invalid parameter for this signature algorithm engine,
810      * Initializes this signature engine with the specified parameter set.
815      * are inappropriate for this signature engine
825      * Returns the parameters used with this signature object.
828      * this signature, or may contain a combination of default and randomly
829      * generated parameter values used by the underlying signature
830      * implementation if this signature requires algorithm parameters but
833      * @return the parameters used with this signature, or null if this
834      * signature does not use any parameters.
848      * a source of random bits for signature generation (if appropriate),