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cipher
암호, 암호화

caesar cipher
카이사르 암호

invalid or empty cipher list (%1)
잘못되었거나 비어 있는 암호화 열쇠 목록 (% 1)

data is the data that will be encrypted with the given cipher and mode.
cipher is one of the mcrypt_ciphername constants of the name of the algorithm as string.

cipher is one of the mcrypt_ciphername constants of the name of the algorithm as string.
(php 4 = 4.0.2)

this document is encrypted, and crypto support is compiled in, but a cipher plugin could not be located
문서가 암호화되었고 암호화 지원이 컴파일되었지만, 암호화 플러그인을 찾을 수 없습니다

mcrypt_get_cipher_name() is used to get the name of the specified cipher.
mcrypt_get_cipher_name() is used to get the name of the specified cipher.

if linked against libmcrypt-2.4.x or higher the functions can also operate in the block cipher mode nofb and in stream mode.
ecb (electronic codebook) is suitable for random data, such as encrypting other keys. since data there is short and random, the disadvantages of ecb have a favorable negative effect.

mcrypt_mode_cfb (cipher feedback) is the best mode for encrypting byte streams where single bytes must be encrypted.
ofb (output feedback, in 8bit) is comparable to cfb, but can be used in applications where error propagation cannot be tolerated. it's insecure (because it operates in 8bit mode) so it is not recommended to use it.

the first line in the example above will try to open the des cipher from the default directory and the ebc mode from the directory / usr / lib / mcrypt-modes.
the algorithm_directory and mode_directory are used to locate the encryption modules. when you supply a directory name, it is used. when you set one of these to the empty string (""), the value set by the mcrypt.algorithms_dir or mcrypt.modes_dir ini-directive is used. when these are not set, the default directory are used that are compiled in into libmcrypt (usally /usr/local/lib/libmcrypt).

?php $algorithms = mcrypt_list_algorithms ("/ usr / local / lib / libmcrypt"); foreach ($algorithms as $cipher) {echo "$cipher br / \n";}?
예 1. mcrypt_list_algorithms() example