mcrypt_enc_get_iv_size

mcrypt_enc_get_iv_size

(PHP 4 >= 4.0.2, PHP 5)

mcrypt_enc_get_iv_sizeReturns the size of the IV of the opened algorithm

说明

int mcrypt_enc_get_iv_size ( resource $td )

This function returns the size of the IV of the algorithm specified by the encryption descriptor in bytes. An IV is used in cbc, cfb and ofb modes, and in some algorithms in stream mode.

参数

td

The encryption descriptor.

返回值

Returns the size of the IV, or 0 if the IV is ignored by the algorithm.


  • mcrypt_cbc
  • mcrypt_cfb
  • mcrypt_create_iv
  • mcrypt_decrypt
  • mcrypt_ecb
  • mcrypt_encrypt
  • 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
  • mcrypt_enc_is_block_algorithm_mode
  • mcrypt_enc_is_block_mode
  • mcrypt_enc_self_test
  • mcrypt_generic
  • mcrypt_generic_deinit
  • mcrypt_generic_end
  • mcrypt_generic_init
  • 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
  • mcrypt_module_is_block_algorithm_mode
  • mcrypt_module_is_block_mode
  • mcrypt_module_open
  • mcrypt_module_self_test
  • mcrypt_ofb
  • mdecrypt_generic
  • PHP MySQL HTML CSS JavaScript MSSQL AJAX .NET JSP Linux Mac ASP 服务器 SQL jQuery C# C++ java Android IOS oracle MongoDB SQLite wamp 交通频道

    无数据提示还没有评论,楼主喊你快去抢前排~~~我要评论
    微信扫码登陆

    打开 微信
    扫一扫登录