mcrypt_enc_is_block_algorithm_mode()

mcrypt_enc_is_block_algorithm_mode - Checks whether the encryption of the opened mode works on blocks

Syntax

bool mcrypt_enc_is_block_algorithm_mode (resource $td)

Arguments

• td - The encryption descriptor.

Description

Tells whether the algorithm of the opened mode works on blocks (e.g. FALSE for stream, and TRUE for cbc, cfb, ofb)..

Version

PHP 4.0.2, 5

Return value

Returns TRUE if the mode is for use with block algorithms, otherwise it returns FALSE.