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  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: Fri, 10 Oct 2014 17:08:01 +0200
From: Jakob Wenzel <jakob.wenzel@...-weimar.de>
To: discussions@...sword-hashing.net
Subject: Catena 2.0

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hi all,

please find attached Version 2.0 of Catena. The reason why we changed
the version number from 1.1 to 2.0 is that we had find an alternative
to the underlying graph-based structure (lambda-bit-reversal graph)
(due to the cryptanalysis by Dmitry and Alex [mailinglist: August 6
2014]).

In the following you can find the changelog from Version 1.1 to
Version 2.0:

  - removed the flawed proof for $\lambda$-memory-hardness of the
    $(G,\lambda)$-bit-reversal hashing operation

  - Catena is now designated as a password-scrambling framework (PSF)
    instead of a pure password scrambler

  - introducing the name Catena-BRG: Catena instantiated with the
    memory-hard $(G,\lambda)$-bit-reversal hashing operation

  - introducing a new instance Catena-DBG: Catena instantiated with the
    $\lambda$-memory-hard $(G,\lambda)$-double butterfly hashing
    operation

  - new recommendations for the usage of Catena-BRG and Catena-DBG
    depending on the required memory-hardness

  - set version ID to 0xFF for Catena-BRG
  - set version ID to 0xFE for Catena-DBG

The current version is also available on:
http://www.uni-weimar.de/de/medien/professuren/mediensicherheit/research/catena/

The current reference implementation is available on:
https://github.com/cforler/catena

Best regards,
The Catena Design Team


-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1

iQEcBAEBAgAGBQJUN/ZRAAoJEDFlRQsgEDnDUCUH/3Y78ao9ZKOWF+VhImPLwQDU
k+kBB4KlQkxlVFcfht7nWFo723cJXkvG69uJypHvI/qNtP7WjLmse10JNyMvLTHZ
y9sW/mPYb8K+3w4fcStxDCdUwXpmg2VTHHk/a7g9ju/V5W8rQfGpAfejik5dDnn/
yGTfjZaKZ2Y3Z7150NY7rr5Sg3AcPj/uDJ0l8ibC/xGYwkrn+HPq3r0U6yiqktXy
iaBxvElA8ptSnZvKS41AimHnmAz3dd5eK8B59vgx8DE82v9OLpzrUhoqsM95yUFd
/JF+noW0TJu+oKC7Hjlh9Aig57j5xbLD7Xq26Y5Dzz6EbK8RLm5jM05Z579dgwo=
=FJ95
-----END PGP SIGNATURE-----

Download attachment "catena-v2.0.pdf" of type "application/pdf" (547434 bytes)

Powered by blists - more mailing lists