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Date: Mon, 12 Oct 1998 17:50:02 +0200 From: Alexander Kjeldaas <astor@guardian.no> To: linux-kernel@vger.rutgers.edu Subject: International kernel patch v2.1.125.2 Hi, the next crypto patch for 2.1.125 is available. The idea is to collect all crypto patches so that using crypto in the kernel will be easier than today. The patch is available from: ftp://ftp.kerneli.org/pub/linux/kerneli/v2.1/patch-int-2.1.125.2.gz Currently the patch includes the latest unofficial ENskip support and crypto-modules for the loopback filesystems (twofish, blowfish, cast-128, serpent, and a not-yet-ported idea). If anybody know of a crypto-patch for the 2.1-series that I haven't included, please contact me. The following has changed from the last patch: 1998-10-12 Alexander Kjeldaas <astor@guardian.no> * drivers/block/loop_serpent.c: Made wrapper-module for the serpent cipher. * crypto/serpent.c crypto/serpent_f_box.h: Added serpent implementation from Dr. B R Gladman <gladman@seven77.demon.co.uk> AES reimplementation project. * drivers/block/Config.in: Loopback crypto flagged experimental I'd like to add some of the other AES candidates too - at least RSA's RC6 and IBM's MARS ciphers. They are very fast and tuned for modern CPUs by using multiply and data-dependent rotations. Some info on serpent (from Configure.help): Serpent is a 128-bit block cipher designed by Ross Anderson, Eli Biham and Lars Knudsen as a candidate for the Advanced Encryption Standard. Serpent provides users with the highest practical level of assurance that no shortcut attack will be found. To achieve this, the algorithm uses well understood mechanisms so that its security relies on the wide experience of block cipher cryptoanalysis. The algorithm uses twice as many rounds as are necessary to block all currently known shortcut attacks. The algorithm is designed to have a service life of 50 years and to continue to protect legacy data for a further 50 years beyond that. Despite these exacting design constraints, Serpent is faster than DES. Its design supports a very efficient bitslice implementation, and this implementation runs at almost 25 Mbit/sec on a 200MHz Pentium (compared with about 15 Mbit/sec for DES). Serpent is completely in the public domain, and no restrictions are imposed on its use. More information about Serpent: http://www.cl.cam.ac.uk/~rja14/serpent.html More information about the implementation: http://www.seven77.demon.co.uk/crypto_technology.htm On the ftp-site, the directory /pub/linux/kernel is a normal kernel-mirror while /pub/linux/kerneli is a kernel-mirror plus the international kernel patch. You should find all utilities needed for using crypto in the kernel in in /pub/linux/kerneli/net-source/. Enjoy, astor -- Alexander Kjeldaas, Guardian Networks AS, Trondheim, Norway http://www.guardian.no/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/