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- Q286896 subject Q6121277.
- Q286896 subject Q8407573.
- Q286896 subject Q8573100.
- Q286896 subject Q8890071.
- Q286896 abstract "Template:Forbcrypt is a key derivation function for passwords designed by Niels Provos and David Mazières, based on the Blowfish cipher, and presented at USENIX in 1999. Besides incorporating a salt to protect against rainbow table attacks, bcrypt is an adaptive function: over time, the iteration count can be increased to make it slower, so it remains resistant to brute-force search attacks even with increasing computation power.The bcrypt function is the default password hash algorithm for BSD and other systems including some Linux distributions such as SUSE Linux.The prefix "$2a$" or "$2b$" (or "$2y$") in a hash string in a shadow password file indicates that hash string is a bcrypt hash in modular crypt format.The rest of the hash string includes the cost parameter, a 128-bit salt (base-64 encoded as 22 characters), and 184 bits of the resulting hash value (base-64 encoded as 31 characters).The cost parameter specifies a key expansion iteration count as a power of two, which is an input to the crypt algorithm. For example, the shadow password record $2a$10$N9qo8uLOickgx2ZMRZoMyeIjZAgcfl7p92ldGxad68LJZdL17lhWy specifies a cost parameter of 10, indicating 210 key expansion rounds. The salt is N9qo8uLOickgx2ZMRZoMye and the resulting hash is IjZAgcfl7p92ldGxad68LJZdL17lhWy. Per standard practice, the user's password itself is not stored.There are implementations of bcrypt for Ruby, Python, C, C#, Perl, PHP, Java, JavaScript, and other languages.".
- Q286896 wikiPageWikiLink Q10513863.
- Q286896 wikiPageWikiLink Q1139146.
- Q286896 wikiPageWikiLink Q1142183.
- Q286896 wikiPageWikiLink Q131669.
- Q286896 wikiPageWikiLink Q1500258.
- Q286896 wikiPageWikiLink Q15995009.
- Q286896 wikiPageWikiLink Q161157.
- Q286896 wikiPageWikiLink Q2141768.
- Q286896 wikiPageWikiLink Q3496793.
- Q286896 wikiPageWikiLink Q3952834.
- Q286896 wikiPageWikiLink Q6121277.
- Q286896 wikiPageWikiLink Q6398189.
- Q286896 wikiPageWikiLink Q7031568.
- Q286896 wikiPageWikiLink Q7439366.
- Q286896 wikiPageWikiLink Q815853.
- Q286896 wikiPageWikiLink Q838075.
- Q286896 wikiPageWikiLink Q8407573.
- Q286896 wikiPageWikiLink Q850362.
- Q286896 wikiPageWikiLink Q8573100.
- Q286896 wikiPageWikiLink Q8890071.
- Q286896 comment "Template:Forbcrypt is a key derivation function for passwords designed by Niels Provos and David Mazières, based on the Blowfish cipher, and presented at USENIX in 1999.".
- Q286896 label "Bcrypt".