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## org.bouncycastle.crypto.generators
Class MGF1BytesGenerator

    java.lang.Object
      org.bouncycastle.crypto.generators.MGF1BytesGenerator

All Implemented Interfaces:
  DerivationFunction

    public class MGF1BytesGenerator

extends java.lang.Object
implements DerivationFunction

Generator for MGF1 as defined in PKCS 1v2

Constructor Summary
`MGF1BytesGenerator(Digest digest)`

Method Summary
`int` | `generateBytes(byte[] out, int outOff, int len)` fill len bytes of the output buffer with bytes generated from the derivation function.
`Digest` | `getDigest()` return the underlying digest.
`void` | `init(DerivationParameters param)`

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

Constructor Detail

### MGF1BytesGenerator

    public MGF1BytesGenerator(Digest digest)

Parameters:
  `digest` - the digest to be used as the source of generated bytes

Method Detail

### init

    public void init(DerivationParameters param)

  Specified by:
    `init` in interface `DerivationFunction`

### getDigest

    public Digest getDigest()

  return the underlying digest.

  Specified by:
    `getDigest` in interface `DerivationFunction`

### generateBytes

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

  fill len bytes of the output buffer with bytes generated from the derivation function.

  Specified by:
    `generateBytes` in interface `DerivationFunction`
  Throws:
    `DataLengthException` - if the out buffer is too small.
    `java.lang.IllegalArgumentException`

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