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## org.bouncycastle.crypto.agreement.srp
Class SRP6VerifierGenerator

    java.lang.Object
      org.bouncycastle.crypto.agreement.srp.SRP6VerifierGenerator

public class SRP6VerifierGenerator
extends java.lang.Object

Generates new SRP verifier for user

Field Summary
`protected Digest` | `digest`
`protected java.math.BigInteger` | `g`
`protected java.math.BigInteger` | `N`

Constructor Summary
`SRP6VerifierGenerator()`

Method Summary
`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.

### init

    public void init(SRP6GroupParameters group,
                     Digest 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

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