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It appears that mcrypt_decrypt pads the *RETURN STRING* with nulls ('\0') to fill out to n * blocksize. For old C-programmers, like myself, it is easy to believe the string ends at the first null.
mcrypt_encrypt — Encrypts plaintext with given parameters mcrypt_generic — This function encrypts data mcrypt_generic_deinit — This function deinitializes an encryption module mcrypt_generic_init — This function initializes all buffers needed for encryption mcrypt_get_block_size — Gets the block size of the specified cipher
The mcrypt-extension is deprecated will be removed in PHP 7.2 according to the comment posted here. So I am looking for an alternative way to encrypt passwords. Right now I am using something like
- It's best practice to hash passwords so they are not decryptable. This makes things slightly more difficult for attackers that may have gained acce...
- As suggested by @rqLizard , you can use openssl_encrypt / openssl_decrypt PHP functions instead which provides a much better alternative to imple...
- As detailed by other answers here, the best solution I found is using OpenSSL. It is built into PHP and you don't need any external library. Here a...
- Pure-PHP implementation of Rijndael exists with phpseclib available as composer package and works on PHP 7.3 (tested by me). There's a page on the...
- You can use phpseclib pollyfill package. You can not use open ssl or libsodium for encrypt/decrypt with rijndael 256. Another issue, you don't need...
- You should use OpenSSL over mcrypt as it's actively developed and maintained. It provides better security, maintainability and portability. Secondl...
- I am using this on PHP 7.2.x, it's working fine for me: public function make_hash($userStr){try{/** * Used and tested on PHP 7....
- As pointed out, you should not be storing your users' passwords in a format that is decryptable. Reversable encryption provides an easy route for h...
- I was able to translate my Crypto object Get a copy of php with mcrypt to decrypt the old data. I went to http://php.net/get/php-7.1.12.tar.gz/from...
Execute mcrypt_decrypt Online. Info and examples on mcrypt_decrypt PHP Function from Mcrypt - Cryptography Extensions
Parameters cipher One of the MCRYPT_ciphername constants, or the name of the algorithm as string. key The key with which the data was encrypted. If the provided key size is not supported by the cipher, the function will emit a warning and return false data The data that will be decrypted with the given cipher and mode.
Description string mcrypt_decrypt ( string cipher, string key, string data, string mode [, string iv]) mcrypt_decrypt () decrypts the data and returns the unencrypted data. Cipher is one of the MCRYPT_ciphername constants of the name of the algorithm as string.
People also ask
What does mcrypt_decrypt do in PHP?
What is string $IV & mcrypt_ciphername in PHP?
Does mcrypt_decrypt return a string with nulls?
Will mcrypt-extension be removed in PHP 7.2?
Parameters cipher One of the MCRYPT_ciphername constants, or the name of the algorithm as string. key The key with which the data was encrypted. If the provided key size is not supported by the cipher, the function will emit a warning and return false data The data that will be decrypted with the given cipher and mode.
