MessageDigestSpi
Date: 2016-06-24

java.security

## Class MessageDigestSpi

- java.lang.Object
- - java.security.MessageDigestSpi

- Direct Known Subclasses:
    MessageDigest

      public abstract class MessageDigestSpi
      extends Object

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `MessageDigestSpi()`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `Object` | `clone()`
    `protected abstract byte[]` | `engineDigest()`
    `protected int` | `engineDigest(byte[] var0, int var1, int var2)`
    `protected int` | `engineGetDigestLength()`
    `protected abstract void` | `engineReset()`
    `protected abstract void` | `engineUpdate(byte var0)`
    `protected abstract void` | `engineUpdate(byte[] var0, int var1, int var2)`

    - ### Methods inherited from class java.lang.Object

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

- - ### Constructor Detail

    - #### MessageDigestSpi

          public MessageDigestSpi()

  - ### Method Detail

    - #### clone

          public Object clone()
                       throws CloneNotSupportedException

      Overrides:
        `clone` in class `Object`
      Throws:
        `CloneNotSupportedException`

    - #### engineDigest

          protected abstract byte[] engineDigest()

    - #### engineDigest

          protected int engineDigest(byte[] var0,
                         int var1,
                         int var2)
                              throws DigestException

      Throws:
        `DigestException`

    - #### engineGetDigestLength

          protected int engineGetDigestLength()

    - #### engineReset

          protected abstract void engineReset()

    - #### engineUpdate

          protected abstract void engineUpdate(byte var0)

    - #### engineUpdate

          protected abstract void engineUpdate(byte[] var0,
                          int var1,
                          int var2)