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PHP : Function Reference : Mcrypt Encryption Functions : mcrypt_get_iv_size

mcrypt_get_iv_size

Returns the size of the IV belonging to a specific cipher/mode combination (PHP 4 >= 4.0.2, PHP 5)
int mcrypt_get_iv_size ( string cipher, string mode )

Example 1297. mcrypt_get_iv_size() example

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<?php

    echo mcrypt_get_iv_size(MCRYPT_CAST_256, MCRYPT_MODE_CFB) . "\n";


    echo mcrypt_get_iv_size('des', 'ecb') . "\n";
?>

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mcrypt_cbc
mcrypt_cfb
mcrypt_create_iv
mcrypt_decrypt
mcrypt_ecb
mcrypt_enc_get_algorithms_name
mcrypt_enc_get_block_size
mcrypt_enc_get_iv_size
mcrypt_enc_get_key_size
mcrypt_enc_get_modes_name
mcrypt_enc_get_supported_key_sizes
mcrypt_enc_is_block_algorithm_mode
mcrypt_enc_is_block_algorithm
mcrypt_enc_is_block_mode
mcrypt_enc_self_test
mcrypt_encrypt
mcrypt_generic_deinit
mcrypt_generic_end
mcrypt_generic_init
mcrypt_generic
mcrypt_get_block_size
mcrypt_get_cipher_name
mcrypt_get_iv_size
mcrypt_get_key_size
mcrypt_list_algorithms
mcrypt_list_modes
mcrypt_module_close
mcrypt_module_get_algo_block_size
mcrypt_module_get_algo_key_size
mcrypt_module_get_supported_key_sizes
mcrypt_module_is_block_algorithm_mode
mcrypt_module_is_block_algorithm
mcrypt_module_is_block_mode
mcrypt_module_open
mcrypt_module_self_test
mcrypt_ofb
mdecrypt_generic

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