Package org.bouncycastle.crypto.agreement.srp

Class SRP6VerifierGenerator

  • public class SRP6VerifierGenerator
extends java.lang.Object
    Generates new SRP verifier for user

    • Field Summary

      Fields 
      Modifier and Type Field Description
      protected Digest digest  
      protected java.math.BigInteger g  
      protected java.math.BigInteger N  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      java.math.BigInteger generateVerifier​(byte[] salt, byte[] identity, byte[] password)
      Creates a new SRP verifier
      void init​(java.math.BigInteger N, java.math.BigInteger g, Digest digest)
      Initialises generator to create new verifiers
      void init​(SRP6GroupParameters group, Digest digest)  

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Field Detail

      • N

        protected java.math.BigInteger N

      • g

        protected java.math.BigInteger g

      • digest

        protected Digest digest

    • Constructor Detail

      • SRP6VerifierGenerator

        public SRP6VerifierGenerator()

    • Method Detail

      • init

        public void init​(java.math.BigInteger N,
                 java.math.BigInteger g,
                 Digest digest)
        Initialises generator to create new verifiers
        Parameters:
        N - The safe prime to use (see DHParametersGenerator)
        g - The group parameter to use (see DHParametersGenerator)
        digest - The digest to use. The same digest type will need to be used later for the actual authentication attempt. Also note that the final session key size is dependent on the chosen digest.

      • generateVerifier

        public java.math.BigInteger generateVerifier​(byte[] salt,
                                             byte[] identity,
                                             byte[] password)
        Creates a new SRP verifier
        Parameters:
        salt - The salt to use, generally should be large and random
        identity - The user's identifying information (eg. username)
        password - The user's password
        Returns:
        A new verifier for use in future SRP authentication