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php Programming Glossary: pbkdf2How to encrypt/decrypt data in php? http://stackoverflow.com/questions/10916284/how-to-encrypt-decrypt-data-in-php proof. Currently there are two popular choices available PBKDF2 Password Based Key Derivation Function v2 bcrypt aka Blowfish..
Best way to encode passwords in PHP http://stackoverflow.com/questions/1391613/best-way-to-encode-passwords-in-php that lets them set a new password. Store a hash bcrypt or PBKDF2 of the password which has been salted Throw away the original..
Best practices: safest method to store passwords in a table? [closed] http://stackoverflow.com/questions/1592608/best-practices-safest-method-to-store-passwords-in-a-table hashing schemes are iterative hashes such as bcrypt and PBKDF2 . For a full discussion see Jeff Atwood's analysis . Original..
http://stackoverflow.com/questions/19732387/password-hashing-in-2013 Curious as to why the PHP site states Caution The PBKDF2 method can be used for hashing passwords for storage it is NIST.. and then just switch it out after upgrading to PHP5.5 PBKDF2 key derivation function as defined by RSA's PKCS #5 https www.ietf.org.. https www.ietf.org rfc rfc6070.txt This implementation of PBKDF2 was originally created by https defuse.ca With improvements..
How long should my password salt be, and is SHA-256 good enough? http://stackoverflow.com/questions/3191690/how-long-should-my-password-salt-be-and-is-sha-256-good-enough security look into key strengthening techniques like PBKDF2 or adaptive hashing with Bcrypt . But these have no direct support..
Many hash iterations: append salt every time? http://stackoverflow.com/questions/3559437/many-hash-iterations-append-salt-every-time Oracle's Password Hashing Algorithms And a few more links PBKDF2 on WikiPedia PBKDF2 Standard A email thread that's applicable.. Algorithms And a few more links PBKDF2 on WikiPedia PBKDF2 Standard A email thread that's applicable Just Hashing Is Far..
Secure hash and salt for PHP passwords http://stackoverflow.com/questions/401656/secure-hash-and-salt-for-php-passwords . Do's Use scrypt when you can bcrypt if you cannot. Use PBKDF2 if you cannot use either bcrypt or scrypt with SHA2 hashes...
PHP 2-way encryption: I need to store passwords that can be retrieved http://stackoverflow.com/questions/5089841/php-2-way-encryption-i-need-to-store-passwords-that-can-be-retrieved mode '' @var int rounds The number of rounds to feed into PBKDF2 for key generation protected rounds 100 Constructor @param.. to use for this instance @param int rounds The number of PBKDF2 rounds to do on the key public function __construct cipher mode.. array cipherKey macKey iv Stretch the key using the PBKDF2 algorithm @see http en.wikipedia.org wiki PBKDF2 @param string..
is there a way to reverse a hash without rainbow tables? [duplicate] http://stackoverflow.com/questions/7523625/is-there-a-way-to-reverse-a-hash-without-rainbow-tables hash The other method which is slightly less preferred is PBKDF2 . To program it in PHP function pbkdf2 hashFunc password salt..
openssl_digest vs hash vs hash_hmac? Difference between SALT & HMAC? http://stackoverflow.com/questions/8952807/openssl-digest-vs-hash-vs-hash-hmac-difference-between-salt-hmac password And this is actually the basic inner loop of PBKDF2 . But can we get better Yes again we can get better. If we look.. Salting Passwords The Case Against Pepper GPU Accelerated PBKDF2 Many Hash Iterations Append Salt Every Time MD5 Decoding How..
Improve password hashing with a random salt http://stackoverflow.com/questions/9420722/improve-password-hashing-with-a-random-salt to do so see for example http en.wikipedia.org wiki PBKDF2 and http www.itnewb.com tutorial Encrypting Passwords with PHP.. Encrypting Passwords with PHP for Storage Using the RSA PBKDF2 Standard NOTE Using such a mechanism is these days mandatrory..
Are there any PHP implementations of scrypt? [closed] http://stackoverflow.com/questions/10149554/are-there-any-php-implementations-of-scrypt is such an overloaded term. php cryptography bcrypt pbkdf2 scrypt share improve this question After coming across this..
Is this a good hashing password function in PHP? If not, why not? http://stackoverflow.com/questions/16042128/is-this-a-good-hashing-password-function-in-php-if-not-why-not I wouldn't pick it. What are some weaknesses Relative To pbkdf2 The phpass algorithm uses hash where pbkdf2 uses hash_hmac ... Relative To pbkdf2 The phpass algorithm uses hash where pbkdf2 uses hash_hmac . Now a HMAC runs 2 hashes for every call internally.. 2 hashes. What does that mean Well for a given runtime pbkdf2 will run approximately 37.5 more hashes than the phpass algorithm...
http://stackoverflow.com/questions/19732387/password-hashing-in-2013 these today This seems a good option https defuse.ca php pbkdf2.htm But then how about upgrading to PHP5.5 and using this http.. PHP5.5 and using this http php.net manual en function.hash pbkdf2.php Curious as to why the PHP site states Caution The PBKDF2.. improvements by http www.variations of shadow.com function pbkdf2 algorithm password salt count key_length raw_output false algorithm..
PHP Mcrypt - Encrypting / Decrypting file http://stackoverflow.com/questions/2448256/php-mcrypt-encrypting-decrypting-file global cryptastic pass PGPPASS salt PGPSALT key cryptastic pbkdf2 pass salt 1000 32 or die Failed to generate secret key. if handle.. global cryptastic pass PGPPASS salt PGPSALT key cryptastic pbkdf2 pass salt 1000 32 or die Failed to generate secret key. if handle..
PHP 2-way encryption: I need to store passwords that can be retrieved http://stackoverflow.com/questions/5089841/php-2-way-encryption-i-need-to-store-passwords-that-can-be-retrieved this cipher this mode length 2 keySize ivSize key this pbkdf2 'sha512' key salt this rounds length cipherKey substr key 0.. key @returns string The derived key. protected function pbkdf2 algo key salt rounds length size strlen hash algo '' true len..
is there a way to reverse a hash without rainbow tables? [duplicate] http://stackoverflow.com/questions/7523625/is-there-a-way-to-reverse-a-hash-without-rainbow-tables less preferred is PBKDF2 . To program it in PHP function pbkdf2 hashFunc password salt iterations length 32 size strlen hash..
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