Authen::Passphrase::PHPass Passphrases using the phpass algorithm.
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Perl module algorithm passphrases phpass algorithm phpass

Authen::Passphrase::PHPass Description

Passphrases using the phpass algorithm. Authen::Passphrase::PHPass is a Perl module with passphrases using the phpass algorithm.SYNOPSIS use Authen::Passphrase::PHPass; $ppr = Authen::Passphrase::PHPass->new( cost => 10, salt => "NaClNaCl", hash_base64 => "ObRxTm/.EiiYN02xUeAQs/"); $ppr = Authen::Passphrase::PHPass->new( cost => 10, salt_random => 1, passphrase => "passphrase"); $ppr = Authen::Passphrase::PHPass->from_crypt( '$P$8NaClNaClObRxTm/.EiiYN02xUeAQs/'); $ppr = Authen::Passphrase::PHPass->from_rfc2307( '{CRYPT}$P$8NaClNaClObRxTm/.EiiYN02xUeAQs/'); $cost = $ppr->cost; $cost_base64 = $ppr->cost_base64; $cost = $ppr->nrounds_log2; $cost_base64 = $ppr->nrounds_log2_base64; $salt = $ppr->salt; $hash = $ppr->hash; $hash_base64 = $ppr->hash_base64; if($ppr->match($passphrase)) { ... $passwd = $ppr->as_crypt; $userPassword = $ppr->as_rfc2307;An object of this class encapsulates a passphrase hashed using the phpass algorithm invented by Solar Designer and described at http://www.openwall.com/phpass/. This is a subclass of Authen::Passphrase, and this document assumes that the reader is familiar with the documentation for that class.The phpass algorithm is based on the MD5 message digest algorithm. There is an eight-byte salt, which is conventionally restricted to consist of base 64 digits. There is also a cost parameter that controls the expense of hashing. First the salt and passphrase are concatenated and hashed by MD5. Then, 2^cost times, the hash from the previous stage is concatenated with the passphrase and hashed by MD5. The passphrase hash is the ouptut from the final iteration.The passphrase hash is represented in ASCII using the crypt format with prefix "$P$". The first character after the format prefix is a base 64 digit giving the cost parameter. The next eight characters are the salt. The salt is followed by 22 base 64 digits giving the hash. The base 64 digits are ".", "/", "0" to "9", "A" to "Z", "a" to "z" (in ASCII order). Requirements: · Perl

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