Java cipher update

Parameters: input - the input ByteBuffer output - the output ByteByffer Returns: the number of bytes stored in output Throws: IllegalStateException - if this cipher is in a wrong state e.

Input data that may have been buffered during a previous update operation is processed, with padding if requested being applied. The result is stored in a new buffer.

Upon finishing, this method resets this cipher object to the state it was in when previously initialized via a call to init. That is, the object is reset and available to encrypt or decrypt depending on the operation mode that was specified in the call to init more data.

Note: if any exception is thrown, this cipher object may need to be reset before it can be used again. Returns: the new buffer with the result Throws: IllegalStateException - if this cipher is in a wrong state e. The result is stored in the output buffer, starting at outputOffset inclusive. Parameters: output - the buffer for the result outputOffset - the offset in output where the result is stored Returns: the number of bytes stored in output Throws: IllegalStateException - if this cipher is in a wrong state e.

The data is encrypted or decrypted, depending on how this cipher was initialized. The bytes in the input buffer, and any input bytes that may have been buffered during a previous update operation, are processed, with padding if requested being applied.

Parameters: input - the input buffer Returns: the new buffer with the result Throws: IllegalStateException - if this cipher is in a wrong state e. The first inputLen bytes in the input buffer, starting at inputOffset inclusive, and any input bytes that may have been buffered during a previous update operation, are processed, with padding if requested being applied.

Parameters: input - the input buffer inputOffset - the offset in input where the input starts inputLen - the input length Returns: the new buffer with the result Throws: IllegalStateException - if this cipher is in a wrong state e. Parameters: input - the input ByteBuffer output - the output ByteBuffer Returns: the number of bytes stored in output Throws: IllegalStateException - if this cipher is in a wrong state e.

Parameters: key - the key to be wrapped. Returns: the wrapped key. IllegalBlockSizeException - if this cipher is a block cipher, no padding has been requested, and the length of the encoding of the key to be wrapped is not a multiple of the block size. InvalidKeyException - if it is impossible or unsafe to wrap the key with this cipher e. Parameters: wrappedKey - the key to be unwrapped. Returns: the unwrapped key. If JCE unlimited strength jurisdiction policy files are installed, Integer.

Parameters: transformation - the cipher transformation. Returns: the maximum key length in bits or Integer. Throws: NullPointerException - if transformation is null. NoSuchAlgorithmException - if transformation is not a valid transformation, i.

If JCE unlimited strength jurisdiction policy files are installed or there is no maximum limit on the parameters for the specified transformation in the policy file, null will be returned. Returns: an AlgorithmParameterSpec which holds the maximum value or null.

Parameters: src - the buffer containing the Additional Authentication Data Throws: IllegalArgumentException - if the src byte array is null IllegalStateException - if this cipher is in a wrong state e. Parameters: src - the buffer containing the AAD offset - the offset in src where the AAD input starts len - the number of AAD bytes Throws: IllegalArgumentException - if the src byte array is null, or the offset or length is less than 0, or the sum of the offset and len is greater than the length of the src byte array IllegalStateException - if this cipher is in a wrong state e.

All src. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy. Object javax. Cipher Direct Known Subclasses: NullCipher public class Cipher extends Object This class provides the functionality of a cryptographic cipher for encryption and decryption. Finishes a multiple-part encryption or decryption operation, depending on how this cipher was initialized.

Encrypts or decrypts data in a single-part operation, or finishes a multiple-part operation. Returns a Cipher object that implements the specified transformation.

Returns the maximum key length for the specified transformation according to the installed JCE jurisdiction policy files. Returns an AlgorithmParameterSpec object which contains the maximum cipher parameter value according to the jurisdiction policy file. Returns the length in bytes that an output buffer would need to be in order to hold the result of the next update or doFinal operation, given the input length inputLen in bytes.

Initializes this cipher with the public key from the given certificate and a source of randomness. Thank you. Microsoft makes no warranties, express or implied, with respect to the information provided here. Continues a multiple-part encryption or decryption operation depending on how this cipher was initialized , processing another data part.

Java documentation for javax. Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2. ByteBuffer, java. Skip to main content. This browser is no longer supported. Malhar Lathkar. Anadi Sharma.

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