com.rsa.certj.cert.attributes

Class VeriSignCRSRecipientNonce

java.lang.Object
  |
  +--com.rsa.certj.cert.attributes.X501Attribute
        |
        +--com.rsa.certj.cert.attributes.VeriSignCRSRecipientNonce

All Implemented Interfaces:

Cloneable, Serializable

public class VeriSignCRSRecipientNonce

extends X501Attribute

implements Cloneable, Serializable

This class holds, encodes, and decodes the CRS recipient nonce attribute. It is used to protect against replay attacks. The VeriSign CRS service supports the detection of a replay attack through the use of sender and recipient nonces. CRS message-generating software is responsible for generating a random nonce value and including it as the value of the senderNonce in the message sent to the server. The VeriSign CRS service returns this value as a recipientNonce in the reply message and sends its own senderNonce value.

The ASN.1 definition is as follows:

 -- Description: Identifies a CRS Recipient Nonce attribute
 -- OID in decimal notation: (2.16.840.1.113733.1.9.6)
 -- Definition:
    id-crs-recipientNonce ::= {id-attributes crs-recipientNonce(6)}
    CRSRecipientNonce ::= OCTET STRING

Copyright © RSA Security Inc., 1999-2001. All rights reserved.

See Also

Serialized Form

Fields inherited from class com.rsa.certj.cert.attributes.X501Attribute

CHALLENGE_PASSWORD, CONTENT_TYPE, COUNTRY_OF_CITIZENSHIP, COUNTRY_OF_RESIDENCE, CRS_DUAL_STATUS, CRS_FAILURE_INFO, CRS_MESSAGE_TYPE, CRS_PKI_STATUS, CRS_RECIPIENT_NONCE, CRS_SENDER_NONCE, CRS_TRANSACTION_ID, CRS_VERSION, DATE_OF_BIRTH, FRIENDLY_NAME, GENDER, LOCAL_KEY_ID, MESSAGE_DIGEST, NON_STANDARD, PLACE_OF_BIRTH, POSTAL_ADDRESS, PSEUDONYM, SIGNING_TIME, SMART_CSP, X509_V3_EXTENSION

Constructor Summary

VeriSignCRSRecipientNonce()

Constructs an empty VeriSignCRSRecipientNonce object.

VeriSignCRSRecipientNonce(byte[] nonce, int offset, int len)

Constructs a VeriSignCRSRecipientNonce object and initializes it with the value given.

Method Summary

Object	clone() Overrides the default clone method to get a deeper clone.
boolean	equals(Object obj) Returns true if this object and obj contain the same VeriSignCRSRecipientNonce, returns false otherwise.
byte[]	getRecipientNonce() Gets the value of this attribute.
void	setRecipientNonce(byte[] nonce, int offset, int len) Sets the value of this attribute, the CRS recipient nonce to nonce.

Methods inherited from class com.rsa.certj.cert.attributes.X501Attribute

clearSensitiveData, compareOID, derEncodeAttributeLen, getAttributeType, getAttributeTypeString, getDEREncoding, getDERLen, getInstance, getNextBEROffset, getOID, isAttributeType

Methods inherited from class java.lang.Object

getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

VeriSignCRSRecipientNonce

public VeriSignCRSRecipientNonce()

Constructs an empty VeriSignCRSRecipientNonce object.

VeriSignCRSRecipientNonce

public VeriSignCRSRecipientNonce(byte[] nonce,
                                 int offset,
                                 int len)

Constructs a VeriSignCRSRecipientNonce object and initializes it with the value given.

Parameters

	nonce		A byte array that contains the CRS recipient nonce.
	offset		The offset into the nonce array.
	len		The length of the nonce array.

Method Detail

setRecipientNonce

public void setRecipientNonce(byte[] nonce,
                              int offset,
                              int len)

Sets the value of this attribute, the CRS recipient nonce to nonce.

Parameters

	nonce		A byte array that contains the CRS recipient nonce.
	offset		The offset into the nonce array.
	len		The length of the nonce array.

getRecipientNonce

public byte[] getRecipientNonce()

Gets the value of this attribute. If the value is not set, this method returns -1.

Returns

An int that specifies the CRS recipient nonce. If the value is not set, this method returns -1.

clone

public Object clone()
             throws CloneNotSupportedException

Overrides the default clone method to get a deeper clone.

Overrides

clone in class X501Attribute

Returns

A new VeriSignCRSRecipientNonce object, a copy of this object.

Throws

CloneNotSupportedException - If the cloning operation is not successful.

equals

public boolean equals(Object obj)

Returns true if this object and obj contain the same VeriSignCRSRecipientNonce, returns false otherwise.

Overrides

equals in class Object

Parameters

obj

The instance of the VeriSignCRSRecipientNonce object.

Returns

A boolean indicating whether these objects are equal.