phc-discussions - Re: [PHC] a sponge based approach

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date: Tue, 13 Aug 2013 09:27:54 +0200
From: CodesInChaos <codesinchaos@...il.com>
To: discussions@...sword-hashing.net
Subject: Re: [PHC] a sponge based approach

It's a fixed pattern, so the "save every sqrt(n)th" value technique which
reduces cost for the attacker to n^{3/2} applies to your construction,
compared with n^2 with scrypt.
For small f (i.e. f<<sqrt(m)) the attacker's cost is probably even lower.

Content of type "text/html" skipped