Uses of Class javax.crypto.IllegalBlockSizeException (Java Platform SE 8 )
Date: 2026-07-22

## Uses of Class
javax.crypto.IllegalBlockSizeException

- Packages that use IllegalBlockSizeException
  Package | Description
  --- | ---
  javax.crypto | Provides the classes and interfaces for cryptographic operations.

- - ### Uses of IllegalBlockSizeException in javax.crypto

    Methods in javax.crypto that throw IllegalBlockSizeException
    Modifier and Type | Method and Description
    --- | ---
    `byte[]` | Cipher.`doFinal()` Finishes a multiple-part encryption or decryption operation, depending on how this cipher was initialized.
    `byte[]` | Cipher.`doFinal(byte[] input)` Encrypts or decrypts data in a single-part operation, or finishes a multiple-part operation.
    `int` | Cipher.`doFinal(byte[] output, int outputOffset)` Finishes a multiple-part encryption or decryption operation, depending on how this cipher was initialized.
    `byte[]` | Cipher.`doFinal(byte[] input, int inputOffset, int inputLen)` Encrypts or decrypts data in a single-part operation, or finishes a multiple-part operation.
    `int` | Cipher.`doFinal(byte[] input, int inputOffset, int inputLen, byte[] output)` Encrypts or decrypts data in a single-part operation, or finishes a multiple-part operation.
    `int` | Cipher.`doFinal(byte[] input, int inputOffset, int inputLen, byte[] output, int outputOffset)` Encrypts or decrypts data in a single-part operation, or finishes a multiple-part operation.
    `int` | Cipher.`doFinal(ByteBuffer input, ByteBuffer output)` Encrypts or decrypts data in a single-part operation, or finishes a multiple-part operation.
    `protected abstract byte[]` | CipherSpi.`engineDoFinal(byte[] input, int inputOffset, int inputLen)` Encrypts or decrypts data in a single-part operation, or finishes a multiple-part operation.
    `protected abstract int` | CipherSpi.`engineDoFinal(byte[] input, int inputOffset, int inputLen, byte[] output, int outputOffset)` Encrypts or decrypts data in a single-part operation, or finishes a multiple-part operation.
    `protected int` | CipherSpi.`engineDoFinal(ByteBuffer input, ByteBuffer output)` Encrypts or decrypts data in a single-part operation, or finishes a multiple-part operation.
    `protected byte[]` | CipherSpi.`engineWrap(Key key)` Wrap a key.
    `Object` | SealedObject.`getObject(Cipher c)` Retrieves the original (encapsulated) object.
    `byte[]` | Cipher.`wrap(Key key)` Wrap a key.

    Constructors in javax.crypto that throw IllegalBlockSizeException
    Constructor and Description
    `SealedObject(Serializable object, Cipher c)` Constructs a SealedObject from any Serializable object.

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