<?php

// Start of mcrypt v.

/**
 * Deprecated: Encrypts/decrypts data in ECB mode
 * @link http://www.php.net/manual/en/function.mcrypt-ecb.php
 * @param cipher int 
 * @param key string 
 * @param data string 
 * @param mode int 
 * @return string 
 * @deprecated Since 5.5.0
 */
function mcrypt_ecb ($cipher, $key, $data, $mode) {}

/**
 * Encrypts/decrypts data in CBC mode
 * @link http://www.php.net/manual/en/function.mcrypt-cbc.php
 * @param cipher int 
 * @param key string 
 * @param data string 
 * @param mode int 
 * @param iv string[optional] 
 * @return string 
 * @deprecated Since 5.5.0
 */
function mcrypt_cbc ($cipher, $key, $data, $mode, $iv = null) {}

/**
 * Encrypts/decrypts data in CFB mode
 * @link http://www.php.net/manual/en/function.mcrypt-cfb.php
 * @param cipher int 
 * @param key string 
 * @param data string 
 * @param mode int 
 * @param iv string 
 * @return string 
 * @deprecated Since 5.5.0
 */
function mcrypt_cfb ($cipher, $key, $data, $mode, $iv) {}

/**
 * Encrypts/decrypts data in OFB mode
 * @link http://www.php.net/manual/en/function.mcrypt-ofb.php
 * @param cipher int 
 * @param key string 
 * @param data string 
 * @param mode int 
 * @param iv string 
 * @return string 
 * @deprecated Since 5.5.0
 */
function mcrypt_ofb ($cipher, $key, $data, $mode, $iv) {}

/**
 * Gets the key size of the specified cipher
 * @link http://www.php.net/manual/en/function.mcrypt-get-key-size.php
 * @param cipher int One of the MCRYPT_ciphername constants, or the name of the algorithm as string.</p>
 * @return int the maximum supported key size of the algorithm in bytes
 * or false on failure.
 */
function mcrypt_get_key_size ($cipher) {}

/**
 * Gets the block size of the specified cipher
 * @link http://www.php.net/manual/en/function.mcrypt-get-block-size.php
 * @param cipher int One of the MCRYPT_ciphername constants, or the name of the algorithm as string.</p>
 * @return int Gets the block size, as an integer.
 */
function mcrypt_get_block_size ($cipher) {}

/**
 * Gets the name of the specified cipher
 * @link http://www.php.net/manual/en/function.mcrypt-get-cipher-name.php
 * @param cipher int One of the MCRYPT_ciphername constants, or the name of the algorithm as string.</p>
 * @return string This function returns the name of the cipher or false if the cipher does
 * not exist.
 */
function mcrypt_get_cipher_name ($cipher) {}

/**
 * Creates an initialization vector (IV) from a random source
 * @link http://www.php.net/manual/en/function.mcrypt-create-iv.php
 * @param size int <p>
 * The size of the IV.
 * </p>
 * @param source int[optional] <p>
 * The source of the IV. The source can be
 * MCRYPT_RAND (system random number generator),
 * MCRYPT_DEV_RANDOM (read data from
 * /dev/random) and
 * MCRYPT_DEV_URANDOM (read data from
 * /dev/urandom). Prior to 5.3.0,
 * MCRYPT_RAND was the only one supported on Windows.
 * </p>
 * <p>
 * Note that the default value of this parameter was
 * MCRYPT_DEV_RANDOM prior to PHP 5.6.0.
 * </p>
 * @return string the initialization vector, or false on error.
 */
function mcrypt_create_iv ($size, $source = null) {}

/**
 * Gets an array of all supported ciphers
 * @link http://www.php.net/manual/en/function.mcrypt-list-algorithms.php
 * @param lib_dir string[optional] <p>
 * Specifies the directory where all algorithms are located. If not
 * specified, the value of the mcrypt.algorithms_dir
 * &php.ini; directive is used.
 * </p>
 * @return array an array with all the supported algorithms.
 */
function mcrypt_list_algorithms ($lib_dir = null) {}

/**
 * Gets an array of all supported modes
 * @link http://www.php.net/manual/en/function.mcrypt-list-modes.php
 * @param lib_dir string[optional] <p>
 * Specifies the directory where all modes are located. If not
 * specified, the value of the mcrypt.modes_dir
 * &php.ini; directive is used.
 * </p>
 * @return array an array with all the supported modes.
 */
function mcrypt_list_modes ($lib_dir = null) {}

/**
 * Returns the size of the IV belonging to a specific cipher/mode combination
 * @link http://www.php.net/manual/en/function.mcrypt-get-iv-size.php
 * @param cipher string One of the MCRYPT_ciphername constants, or the name of the algorithm as string.</p>
 * @param mode string One of the MCRYPT_MODE_modename constants, or one of the following strings: "ecb", "cbc", "cfb", "ofb", "nofb" or "stream".</p>
 * <p>
 * The IV is ignored in ECB mode as this mode does not require it. You will
 * need to have the same IV (think: starting point) both at encryption and
 * decryption stages, otherwise your encryption will fail.
 * </p>
 * @return int the size of the Initialization Vector (IV) in bytes. On error the
 * function returns false. If the IV is ignored in the specified cipher/mode
 * combination zero is returned.
 */
function mcrypt_get_iv_size ($cipher, $mode) {}

/**
 * Encrypts plaintext with given parameters
 * @link http://www.php.net/manual/en/function.mcrypt-encrypt.php
 * @param cipher string One of the MCRYPT_ciphername constants, or the name of the algorithm as string.</p>
 * @param key string <p>
 * The key with which the data will be encrypted. If it's smaller than
 * the required keysize, it is padded with '\0'. It is
 * better not to use ASCII strings for keys.
 * </p>
 * <p>
 * It is recommended to use the mhash functions to create a key from a
 * string.
 * </p>
 * @param data string <p>
 * The data that will be encrypted with the given cipher
 * and mode. If the size of the data is not n * blocksize,
 * the data will be padded with '\0'.
 * </p>
 * <p>
 * The returned crypttext can be larger than the size of the data that was
 * given by data.
 * </p>
 * @param mode string One of the MCRYPT_MODE_modename constants, or one of the following strings: "ecb", "cbc", "cfb", "ofb", "nofb" or "stream".</p>
 * @param iv string[optional] Used for the initialization in CBC, CFB, OFB modes, and in some algorithms in STREAM mode. If you do not supply an IV, while it is needed for an algorithm, the function issues a warning and uses an IV with all its bytes set to "\0".</p>
 * @return string the encrypted data, as a string.
 */
function mcrypt_encrypt ($cipher, $key, $data, $mode, $iv = null) {}

/**
 * Decrypts crypttext with given parameters
 * @link http://www.php.net/manual/en/function.mcrypt-decrypt.php
 * @param cipher string One of the MCRYPT_ciphername constants, or the name of the algorithm as string.</p>
 * @param key string <p>
 * The key with which the data was encrypted. If it's smaller
 * than the required keysize, it is padded with
 * '\0'.
 * </p>
 * @param data string <p>
 * The data that will be decrypted with the given cipher
 * and mode. If the size of the data is not n * blocksize,
 * the data will be padded with '\0'.
 * </p>
 * @param mode string One of the MCRYPT_MODE_modename constants, or one of the following strings: "ecb", "cbc", "cfb", "ofb", "nofb" or "stream".</p>
 * @param iv string[optional] Used for the initialization in CBC, CFB, OFB modes, and in some algorithms in STREAM mode. If you do not supply an IV, while it is needed for an algorithm, the function issues a warning and uses an IV with all its bytes set to "\0".</p>
 * @return string the decrypted data as a string.
 */
function mcrypt_decrypt ($cipher, $key, $data, $mode, $iv = null) {}

/**
 * Opens the module of the algorithm and the mode to be used
 * @link http://www.php.net/manual/en/function.mcrypt-module-open.php
 * @param algorithm string One of the MCRYPT_ciphername constants, or the name of the algorithm as string.</p>
 * @param algorithm_directory string <p>
 * The algorithm_directory parameter is used to locate
 * the encryption module. When you supply a directory name, it is used. When
 * you set it to an empty string (""), the value set by the
 * mcrypt.algorithms_dir &php.ini; directive is used. When
 * it is not set, the default directory that is used is the one that was compiled
 * into libmcrypt (usually /usr/local/lib/libmcrypt).
 * </p>
 * @param mode string One of the MCRYPT_MODE_modename constants, or one of the following strings: "ecb", "cbc", "cfb", "ofb", "nofb" or "stream".</p>
 * @param mode_directory string <p>
 * The mode_directory parameter is used to locate
 * the encryption module. When you supply a directory name, it is used. When
 * you set it to an empty string (""), the value set by the
 * mcrypt.modes_dir &php.ini; directive is used. When
 * it is not set, the default directory that is used is the one that was compiled-in
 * into libmcrypt (usually /usr/local/lib/libmcrypt).
 * </p>
 * @return resource Normally it returns an encryption descriptor, or false on error.
 */
function mcrypt_module_open ($algorithm, $algorithm_directory, $mode, $mode_directory) {}

/**
 * This function initializes all buffers needed for encryption
 * @link http://www.php.net/manual/en/function.mcrypt-generic-init.php
 * @param td resource <p>
 * The encryption descriptor.
 * </p>
 * @param key string <p>
 * The maximum length of the key should be the one obtained by calling
 * mcrypt_enc_get_key_size and every value smaller
 * than this is legal.
 * </p>
 * @param iv string <p>
 * The IV should normally have the size of the algorithms block size, but
 * you must obtain the size by calling
 * mcrypt_enc_get_iv_size. IV is ignored in ECB. IV
 * MUST exist in CFB, CBC, STREAM, nOFB and OFB modes. It needs to be
 * random and unique (but not secret). The same IV must be used for
 * encryption/decryption. If you do not want to use it you should set it
 * to zeros, but this is not recommended.
 * </p>
 * @return int The function returns a negative value on error: -3 when the key length
 * was incorrect, -4 when there was a memory allocation problem and any
 * other return value is an unknown error. If an error occurs a warning will
 * be displayed accordingly. false is returned if incorrect parameters
 * were passed.
 */
function mcrypt_generic_init ($td, $key, $iv) {}

/**
 * This function encrypts data
 * @link http://www.php.net/manual/en/function.mcrypt-generic.php
 * @param td resource <p>
 * The encryption descriptor.
 * </p>
 * <p>
 * The encryption handle should always be initialized with
 * mcrypt_generic_init with a key and an IV before
 * calling this function. Where the encryption is done, you should free the
 * encryption buffers by calling mcrypt_generic_deinit.
 * See mcrypt_module_open for an example.
 * </p>
 * @param data string <p>
 * The data to encrypt.
 * </p>
 * @return string the encrypted data.
 */
function mcrypt_generic ($td, $data) {}

/**
 * Decrypts data
 * @link http://www.php.net/manual/en/function.mdecrypt-generic.php
 * @param td resource <p>
 * An encryption descriptor returned by
 * mcrypt_module_open
 * </p>
 * @param data string <p>
 * Encrypted data.
 * </p>
 * @return string 
 */
function mdecrypt_generic ($td, $data) {}

/**
 * This function terminates encryption
 * @link http://www.php.net/manual/en/function.mcrypt-generic-end.php
 * @param td resource 
 * @return bool 
 * @deprecated 
 */
function mcrypt_generic_end ($td) {}

/**
 * This function deinitializes an encryption module
 * @link http://www.php.net/manual/en/function.mcrypt-generic-deinit.php
 * @param td resource <p>
 * The encryption descriptor.
 * </p>
 * @return bool true on success or false on failure
 */
function mcrypt_generic_deinit ($td) {}

/**
 * Runs a self test on the opened module
 * @link http://www.php.net/manual/en/function.mcrypt-enc-self-test.php
 * @param td resource <p>
 * The encryption descriptor.
 * </p>
 * @return int If the self test succeeds it returns false. In case of an error, it
 * returns true.
 */
function mcrypt_enc_self_test ($td) {}

/**
 * Checks whether the encryption of the opened mode works on blocks
 * @link http://www.php.net/manual/en/function.mcrypt-enc-is-block-algorithm-mode.php
 * @param td resource <p>
 * The encryption descriptor.
 * </p>
 * @return bool true if the mode is for use with block algorithms, otherwise it
 * returns false.
 */
function mcrypt_enc_is_block_algorithm_mode ($td) {}

/**
 * Checks whether the algorithm of the opened mode is a block algorithm
 * @link http://www.php.net/manual/en/function.mcrypt-enc-is-block-algorithm.php
 * @param td resource <p>
 * The encryption descriptor.
 * </p>
 * @return bool true if the algorithm is a block algorithm or false if it is
 * a stream one.
 */
function mcrypt_enc_is_block_algorithm ($td) {}

/**
 * Checks whether the opened mode outputs blocks
 * @link http://www.php.net/manual/en/function.mcrypt-enc-is-block-mode.php
 * @param td resource <p>
 * The encryption descriptor.
 * </p>
 * @return bool true if the mode outputs blocks of bytes,
 * or false if it outputs just bytes.
 */
function mcrypt_enc_is_block_mode ($td) {}

/**
 * Returns the blocksize of the opened algorithm
 * @link http://www.php.net/manual/en/function.mcrypt-enc-get-block-size.php
 * @param td resource <p>
 * The encryption descriptor.
 * </p>
 * @return int the block size of the specified algorithm in bytes.
 */
function mcrypt_enc_get_block_size ($td) {}

/**
 * Returns the maximum supported keysize of the opened mode
 * @link http://www.php.net/manual/en/function.mcrypt-enc-get-key-size.php
 * @param td resource <p>
 * The encryption descriptor.
 * </p>
 * @return int the maximum supported key size of the algorithm in bytes.
 */
function mcrypt_enc_get_key_size ($td) {}

/**
 * Returns an array with the supported keysizes of the opened algorithm
 * @link http://www.php.net/manual/en/function.mcrypt-enc-get-supported-key-sizes.php
 * @param td resource <p>
 * The encryption descriptor.
 * </p>
 * @return array an array with the key sizes supported by the algorithm
 * specified by the encryption descriptor. If it returns an empty
 * array then all key sizes between 1 and
 * mcrypt_enc_get_key_size are supported by the
 * algorithm.
 */
function mcrypt_enc_get_supported_key_sizes ($td) {}

/**
 * Returns the size of the IV of the opened algorithm
 * @link http://www.php.net/manual/en/function.mcrypt-enc-get-iv-size.php
 * @param td resource <p>
 * The encryption descriptor.
 * </p>
 * @return int the size of the IV, or 0 if the IV is ignored by the algorithm.
 */
function mcrypt_enc_get_iv_size ($td) {}

/**
 * Returns the name of the opened algorithm
 * @link http://www.php.net/manual/en/function.mcrypt-enc-get-algorithms-name.php
 * @param td resource <p>
 * The encryption descriptor.
 * </p>
 * @return string the name of the opened algorithm as a string.
 */
function mcrypt_enc_get_algorithms_name ($td) {}

/**
 * Returns the name of the opened mode
 * @link http://www.php.net/manual/en/function.mcrypt-enc-get-modes-name.php
 * @param td resource <p>
 * The encryption descriptor.
 * </p>
 * @return string the name as a string.
 */
function mcrypt_enc_get_modes_name ($td) {}

/**
 * This function runs a self test on the specified module
 * @link http://www.php.net/manual/en/function.mcrypt-module-self-test.php
 * @param algorithm string One of the MCRYPT_ciphername constants, or the name of the algorithm as string.</p>
 * @param lib_dir string[optional] <p>
 * The optional lib_dir parameter can contain the
 * location where the algorithm module is on the system.
 * </p>
 * @return bool The function returns true if the self test succeeds, or false when it
 * fails.
 */
function mcrypt_module_self_test ($algorithm, $lib_dir = null) {}

/**
 * Returns if the specified module is a block algorithm or not
 * @link http://www.php.net/manual/en/function.mcrypt-module-is-block-algorithm-mode.php
 * @param mode string <p>
 * The mode to check.
 * </p>
 * @param lib_dir string[optional] <p>
 * The optional lib_dir parameter can contain the
 * location where the algorithm module is on the system.
 * </p>
 * @return bool This function returns true if the mode is for use with block
 * algorithms, otherwise it returns false. (e.g. false for stream, and
 * true for cbc, cfb, ofb).
 */
function mcrypt_module_is_block_algorithm_mode ($mode, $lib_dir = null) {}

/**
 * This function checks whether the specified algorithm is a block algorithm
 * @link http://www.php.net/manual/en/function.mcrypt-module-is-block-algorithm.php
 * @param algorithm string <p>
 * The algorithm to check.
 * </p>
 * @param lib_dir string[optional] <p>
 * The optional lib_dir parameter can contain the
 * location where the algorithm module is on the system.
 * </p>
 * @return bool This function returns true if the specified algorithm is a block
 * algorithm, or false if it is a stream one.
 */
function mcrypt_module_is_block_algorithm ($algorithm, $lib_dir = null) {}

/**
 * Returns if the specified mode outputs blocks or not
 * @link http://www.php.net/manual/en/function.mcrypt-module-is-block-mode.php
 * @param mode string One of the MCRYPT_MODE_modename constants, or one of the following strings: "ecb", "cbc", "cfb", "ofb", "nofb" or "stream".</p>
 * @param lib_dir string[optional] <p>
 * The optional lib_dir parameter can contain the
 * location where the algorithm module is on the system.
 * </p>
 * @return bool This function returns true if the mode outputs blocks of bytes or
 * false if it outputs just bytes. (e.g. true for cbc and ecb, and
 * false for cfb and stream).
 */
function mcrypt_module_is_block_mode ($mode, $lib_dir = null) {}

/**
 * Returns the blocksize of the specified algorithm
 * @link http://www.php.net/manual/en/function.mcrypt-module-get-algo-block-size.php
 * @param algorithm string <p>
 * The algorithm name.
 * </p>
 * @param lib_dir string[optional] <p>
 * This optional parameter can contain the location where the mode module
 * is on the system.
 * </p>
 * @return int the block size of the algorithm specified in bytes.
 */
function mcrypt_module_get_algo_block_size ($algorithm, $lib_dir = null) {}

/**
 * Returns the maximum supported keysize of the opened mode
 * @link http://www.php.net/manual/en/function.mcrypt-module-get-algo-key-size.php
 * @param algorithm string <p>
 * The algorithm name.
 * </p>
 * @param lib_dir string[optional] <p>
 * This optional parameter can contain the location where the mode module
 * is on the system.
 * </p>
 * @return int This function returns the maximum supported key size of the
 * algorithm specified in bytes.
 */
function mcrypt_module_get_algo_key_size ($algorithm, $lib_dir = null) {}

/**
 * Returns an array with the supported keysizes of the opened algorithm
 * @link http://www.php.net/manual/en/function.mcrypt-module-get-supported-key-sizes.php
 * @param algorithm string <p>
 * The algorithm to be used.
 * </p>
 * @param lib_dir string[optional] <p>
 * The optional lib_dir parameter can contain the
 * location where the algorithm module is on the system.
 * </p>
 * @return array an array with the key sizes supported by the specified algorithm.
 * If it returns an empty array then all key sizes between 1 and
 * mcrypt_module_get_algo_key_size are supported by the
 * algorithm.
 */
function mcrypt_module_get_supported_key_sizes ($algorithm, $lib_dir = null) {}

/**
 * Closes the mcrypt module
 * @link http://www.php.net/manual/en/function.mcrypt-module-close.php
 * @param td resource <p>
 * The encryption descriptor.
 * </p>
 * @return bool true on success or false on failure
 */
function mcrypt_module_close ($td) {}

define ('MCRYPT_ENCRYPT', 0);
define ('MCRYPT_DECRYPT', 1);
define ('MCRYPT_DEV_RANDOM', 0);
define ('MCRYPT_DEV_URANDOM', 1);
define ('MCRYPT_RAND', 2);
define ('MCRYPT_3DES', "tripledes");
define ('MCRYPT_ARCFOUR_IV', "arcfour-iv");
define ('MCRYPT_ARCFOUR', "arcfour");
define ('MCRYPT_BLOWFISH', "blowfish");
define ('MCRYPT_BLOWFISH_COMPAT', "blowfish-compat");
define ('MCRYPT_CAST_128', "cast-128");
define ('MCRYPT_CAST_256', "cast-256");
define ('MCRYPT_CRYPT', "crypt");
define ('MCRYPT_DES', "des");
define ('MCRYPT_ENIGNA', "crypt");
define ('MCRYPT_GOST', "gost");
define ('MCRYPT_LOKI97', "loki97");
define ('MCRYPT_PANAMA', "panama");
define ('MCRYPT_RC2', "rc2");
define ('MCRYPT_RIJNDAEL_128', "rijndael-128");
define ('MCRYPT_RIJNDAEL_192', "rijndael-192");
define ('MCRYPT_RIJNDAEL_256', "rijndael-256");
define ('MCRYPT_SAFER64', "safer-sk64");
define ('MCRYPT_SAFER128', "safer-sk128");
define ('MCRYPT_SAFERPLUS', "saferplus");
define ('MCRYPT_SERPENT', "serpent");
define ('MCRYPT_THREEWAY', "threeway");
define ('MCRYPT_TRIPLEDES', "tripledes");
define ('MCRYPT_TWOFISH', "twofish");
define ('MCRYPT_WAKE', "wake");
define ('MCRYPT_XTEA', "xtea");
define ('MCRYPT_IDEA', "idea");
define ('MCRYPT_MARS', "mars");
define ('MCRYPT_RC6', "rc6");
define ('MCRYPT_SKIPJACK', "skipjack");
define ('MCRYPT_MODE_CBC', "cbc");
define ('MCRYPT_MODE_CFB', "cfb");
define ('MCRYPT_MODE_ECB', "ecb");
define ('MCRYPT_MODE_NOFB', "nofb");
define ('MCRYPT_MODE_OFB', "ofb");
define ('MCRYPT_MODE_STREAM', "stream");

// End of mcrypt v.
