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The only parameter of the cipher that you cannotĬhange is the cipher mode, that will be CBC in any case. Mcrypt object in the FileCipher using the setCipher() method. Our company's website is not yet encrypted and optimized with PHP, so you should try it if you have the chance. If you need to customize the cipher algorithm, for instance changing the Padding mode, you can inject your GetCipherSupportedAlgorithms(), it will return an array of all the algorithm name. You can retrieve the list of all the supported encryption algorithm in your environment using the function You can specity to use the Blowfish encryption algorihtm using setCipherAlgorithm('blowfish'). If you want to change the encryption algorithm, you can use the setCipherAlgorithm() function, for instance This component uses the PBKDF2 key derivationĪlgorithm to generate the encryption key and the authentication key, for the HMAC, based on the key specified End of story.Use Zend\Crypt\FileCipher $fileCipher = new FileCipher $fileCipher -> setKey ( 'encryption key' ) // encryption if ( $fileCipher -> encrypt ( 'path/to/file_to_encrypt', 'path/to/output' )) īy default FileCipher uses the AES encryption algorithm (with a key of 256 bit) and the SHA-256 hashĪlgorithm to authenticate the data using the HMAC function. ZendCrypt provides support of some cryptographic tools. By getting passwords from your system an attacker could very easily gain access to your users' banking services and other highly-sensitive things. There's a very high probability that users re-use the same passwords for multiple services. There is no legitimate reason to store passwords insecurely, and doing so is genuinely irresponsible to your users.
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- When a user enters a password, hash the entered password and compare it to the hash.
- Hash the password, store the hash and the salt.
- The format of output file is simply a dump of binary data.
The only way to be certain that passwords can't be read is to not keep them in a readable format. Symmetric Ciphers Online allows you to encrypt or decrypt arbitrary message using several well known symmetric encryption algorithms such as AES, 3DES, or BLOWFISH. The pitfall is that the passwords are readable, and that should never happen. If the passwords are compromised, then the requirement of "being logged in" won't really be difficult for an attacker to achieve, would it?īut are there any other things I could do to prevent easy access to the passwords. Some assumptions The tutorial application Getting started: A skeleton application.
To get to the passwords you need to be logged in, so that will be the first layer of defence against hacking. This is fixed by hashing the password instead of 2-way encrypting it. If the password can be determined, it's not safe. encrypt-then-authenticate using symmetric ciphers (the authentication stepis provided using HMAC) encrypt/decrypt using symmetric and public key algorithm. Those two statements are mutually-exclusive. Well I want to be able to reverse the password but be able to store the passwords safely.