http://www.jboss.org/undertow-parent/undertow-core: Undertow (JBoss by Red Hat) 
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package io.undertow.security.api;


An extension to the NonceManager interface for Nonce managers that also support the association of a pre-prepared hash against a currently valid nonce. If the nonce manager replaces in-use nonces as old ones expire then the associated session hash should be migrated to the replacement nonce. 
Author:Darran Lofthouse
/**
 * An extension to the {@link NonceManager} interface for Nonce managers that also support the association of a pre-prepared
 * hash against a currently valid nonce.
 *
 * If the nonce manager replaces in-use nonces as old ones expire then the associated session hash should be migrated to the
 * replacement nonce.
 *
 * @author <a href="mailto:darran.lofthouse@jboss.com">Darran Lofthouse</a>
 */
public interface SessionNonceManager extends NonceManager {

    
Associate the supplied hash with the nonce specified.

Params:
  • nonce – - The nonce the hash is to be associated with.
  • hash – - The hash to associate.
/**
     * Associate the supplied hash with the nonce specified.
     *
     * @param nonce - The nonce the hash is to be associated with.
     * @param hash - The hash to associate.
     */
    void associateHash(final String nonce, final byte[] hash);

    
Retrieve the existing hash associated with the nonce specified.
If there is no association then null should be returned.

Params:
  • nonce – - The nonce the hash is required for.
Returns:The associated hash or null if there is no association.
/**
     * Retrieve the existing hash associated with the nonce specified.
     *
     * If there is no association then null should be returned.
     *
     * @param nonce - The nonce the hash is required for.
     * @return The associated hash or null if there is no association.
     */
    byte[] lookupHash(final String nonce);

}