Bouncy Castle Cryptography Library 1.45

## org.bouncycastle.crypto.agreement.kdf
Class ECDHKEKGenerator

    java.lang.Object
      org.bouncycastle.crypto.agreement.kdf.ECDHKEKGenerator

All Implemented Interfaces:
  DerivationFunction

    public class ECDHKEKGenerator

extends java.lang.Object
implements DerivationFunction

X9.63 based key derivation function for ECDH CMS.

Constructor Summary
`ECDHKEKGenerator(Digest digest)`

Method Summary
`int` `generateBytes(byte[] out, int outOff, int len)`
`Digest` `getDigest()` return the message digest used as the basis for the function
`void` `init(DerivationParameters param)`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### ECDHKEKGenerator

    public ECDHKEKGenerator(Digest digest)

Method Detail

### init

    public void init(DerivationParameters param)

  Specified by:
    `init` in interface `DerivationFunction`

### getDigest

    public Digest getDigest()

  Description copied from interface: `DerivationFunction`
  return the message digest used as the basis for the function

  Specified by:
    `getDigest` in interface `DerivationFunction`

### generateBytes

    public int generateBytes(byte[] out,
                             int outOff,
                             int len)
                      throws DataLengthException,
                             java.lang.IllegalArgumentException

  Specified by:
    `generateBytes` in interface `DerivationFunction`
  Throws:
    `DataLengthException`
    `java.lang.IllegalArgumentException`

Bouncy Castle Cryptography Library 1.45