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* crypto: vmac - New hash algorithm for intel_txt supportShane Wang2009-09-021-0/+4
| | | | | | | | This patch adds VMAC (a fast MAC) support into crypto framework. Signed-off-by: Shane Wang <shane.wang@intel.com> Signed-off-by: Joseph Cihula <joseph.cihula@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: tcrypt - Add mask parameterHerbert Xu2009-07-141-3/+6
| | | | | | | | This patch adds a mask parameter to complement the existing type parameter. This is useful when instantiating algorithms that require a mask other than the default, e.g., ahash algorithms. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: tcrypt - Fix module return code when testing by nameHerbert Xu2009-06-191-1/+1
| | | | | | We should return 0/-ENOENT instead of 1/0 when testing by name. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: tcrypt - Test algorithms by nameSteffen Klassert2009-06-191-1/+14
| | | | | | | | | | This adds the 'alg' module parameter to be able to test an algorithm by name. If the algorithm type is not ad-hoc clear for a algorithm (e.g. pcrypt, cryptd) it is possilbe to set the algorithm type with the 'type' module parameter. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: tcrypt - Do not exit on success in fips modeJarod Wilson2009-06-021-74/+90
| | | | | | | | | | | | | | | | | | | | | | | | | | At present, the tcrypt module always exits with an -EAGAIN upon successfully completing all the tests its been asked to run. In fips mode, integrity checking is done by running all self-tests from the initrd, and its much simpler to check the ret from modprobe for success than to scrape dmesg and/or /proc/crypto. Simply stay loaded, giving modprobe a retval of 0, if self-tests all pass and we're in fips mode. A side-effect of tracking success/failure for fips mode is that in non-fips mode, self-test failures will return the actual failure return codes, rather than always returning -EAGAIN, which seems more correct anyway. The tcrypt_test() portion of the patch is dependent on my earlier pair of patches that skip non-fips algs in fips mode, at least to achieve the fully intended behavior. Nb: testing this patch against the cryptodev tree revealed a test failure for sha384, which I have yet to look into... Signed-off-by: Jarod Wilson <jarod@redhat.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: testmgr - Add ctr(aes) test vectorsJarod Wilson2009-06-021-0/+1
| | | | | | | | Now with multi-block test vectors, all from SP800-38A, Appendix F.5. Also added ctr(aes) to case 10 in tcrypt. Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: testmgr - Add ansi_cprng test vectorsJarod Wilson2009-06-021-0/+4
| | | | | | | | | | | | | | | | | Add ANSI X9.31 Continuous Pseudo-Random Number Generator (AES mode), aka 'ansi_cprng' test vectors, taken from Appendix B.2.9 and B.2.10 of the NIST RNGVS document, found here: http://csrc.nist.gov/groups/STM/cavp/documents/rng/RNGVS.pdf Successfully tested against both the cryptodev-2.6 tree and a Red Hat Enterprise Linux 5.4 kernel, via 'modprobe tcrypt mode=150'. The selection of 150 was semi-arbitrary, didn't seem like it should go any place in particular, so I started a new range for rng tests. Signed-off-by: Jarod Wilson <jarod@redhat.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: testmgr - Add self-tests for rfc4309(ccm(aes))Jarod Wilson2009-06-021-0/+4
| | | | | | | | | | | | | | | Add an array of encryption and decryption + verification self-tests for rfc4309(ccm(aes)). Test vectors all come from sample FIPS CAVS files provided to Red Hat by a testing lab. Unfortunately, all the published sample vectors in RFC 3610 and NIST Special Publication 800-38C contain nonce lengths that the kernel's rfc4309 implementation doesn't support, so while using some public domain vectors would have been preferred, its not possible at this time. Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: tcrypt - Reduce stack sizeFrank Seidel2009-06-021-7/+9
| | | | | | | | | | | | Applying kernel janitors todos (printk calls need KERN_* constants on linebeginnings, reduce stack footprint where possible) to tcrypts test_hash_speed (where stacks memory footprint was very high (on i386 1184 bytes to 160 now). Signed-off-by: Frank Seidel <frank@f-seidel.de> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: testmgr - add zlib testGeert Uytterhoeven2009-03-041-1/+5
| | | | | Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: cryptomgr - Add test infrastructureHerbert Xu2008-08-291-1700/+8
| | | | | | | | This patch moves the newly created alg_test infrastructure into cryptomgr. This shall allow us to use it for testing at algorithm registrations. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: tcrypt - Add alg_test interfaceHerbert Xu2008-08-291-438/+1017
| | | | | | | | | | | | | This patch creates a new interface algorithm testing. A test can be requested for a particular implementation of an algorithm. This is achieved by taking both the name of the algorithm and that of the implementation. The all-inclusive test has also been rewritten to no longer require a duplicate listing of all algorithms with tests. In that process a number of missing tests have also been discovered and rectified. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: tcrypt - Abort and only log if there is an errorHerbert Xu2008-08-291-146/+200
| | | | | | | | | | | | The info printed is a complete waste of space when there is no error since it doesn't tell us anything that we don't already know. If there is an error, we can also be more verbose. In case that there is an error, this patch also aborts the test and returns the error to the caller. In future this will be used to algorithms at registration time. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: tcrypt - Avoid using contiguous pagesHerbert Xu2008-08-291-153/+151
| | | | | | | | | | If tcrypt is to be used as a run-time integrity test, it needs to be more resilient in a hostile environment. For a start allocating 32K of physically contiguous memory is definitely out. This patch teaches it to use separate pages instead. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: tcrypt - Fix AEAD chunk testingHerbert Xu2008-08-131-9/+19
| | | | | | | | | | | | | | | | My changeset 4b22f0ddb6564210c9ded7ba25b2a1007733e784 crypto: tcrpyt - Remove unnecessary kmap/kunmap calls introduced a typo that broke AEAD chunk testing. In particular, axbuf should really be xbuf. There is also an issue with testing the last segment when encrypting. The additional part produced by AEAD wasn't tested. Similarly, on decryption the additional part of the AEAD input is mistaken for corruption. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: hash - Move ahash functions into crypto/hash.hHerbert Xu2008-07-101-0/+1
| | | | | | | | | | | All new crypto interfaces should go into individual files as much as possible in order to ensure that crypto.h does not collapse under its own weight. This patch moves the ahash code into crypto/hash.h and crypto/internal/hash.h respectively. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: tcrpyt - Remove unnecessary kmap/kunmap callsHerbert Xu2008-07-101-10/+5
| | | | | | | | | Noticed by Neil Horman: we are doing unnecessary kmap/kunmap calls on kmalloced memory. This patch removes them. For the purposes of testing SG construction, the underlying crypto code already does plenty of kmap/kunmap calls anyway. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] tcrypt: Add self test for des3_ebe cipher operating in cbc modeNeil Horman2008-07-101-0/+16
| | | | | | | | | | | | | | | | | | Patch to add checking of DES3 test vectors using CBC mode. FIPS-140-2 compliance mandates that any supported mode of operation must include a self test. This satisfies that requirement for cbc(des3_ede). The included test vector was generated by me using openssl. Key/IV was generated with the following command: openssl enc -des_ede_cbc -P input and output values were generated by repeating the string "Too many secrets" a few times over, truncating it to 128 bytes, and encrypting it with openssl using the aformentioned key. Tested successfully by myself Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Acked-by: Adrian-Ken Rueegsegger <rueegsegger@swiss-it.ch> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] tcrypt: Use asynchronous hash interfaceLoc Ho2008-07-101-19/+57
| | | | | | | | | This patch changes tcrypt to use the new asynchronous hash interface for testing hash algorithm correctness. The speed tests will continue to use the existing interface for now. Signed-off-by: Loc Ho <lho@amcc.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] tcrypt: Add test vectors for RIPEMD-256 and RIPEMD-320Adrian-Ken Rueegsegger2008-07-101-2/+19
| | | | | | | | | | | This patch adds test vectors for RIPEMD-256 and RIPEMD-320 hash algorithms. The test vectors are taken from <http://homes.esat.kuleuven.be/~bosselae/ripemd160.html> Signed-off-by: Adrian-Ken Rueegsegger <rueegsegger@swiss-it.ch> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] tcrypt: Catch cipher destination memory corruptionPatrick McHardy2008-07-101-5/+21
| | | | | | | | | | | | Check whether the destination buffer is written to beyond the last byte contained in the scatterlist. Also change IDX1 of the cross-page access offsets to a multiple of 4. This triggers a corruption in the HIFN driver and doesn't seem to negatively impact other testcases. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] tcrpyt: Get rid of change log in sourceHerbert Xu2008-07-101-8/+0
| | | | | | | | Change logs should be kept in source control systems, not the source. This patch removes the change log from tcrpyt to stop people from extending it any more. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] tcrypt: Add test vectors for RIPEMD-128 and RIPEMD-160Adrian-Ken Rueegsegger2008-07-101-1/+28
| | | | | | | | | | | This patch adds test vectors for RIPEMD-128 and RIPEMD-160 hash algorithms and digests (HMAC). The test vectors are taken from ISO:IEC 10118-3 (2004) and RFC2286. Signed-off-by: Adrian-Ken Rueegsegger <rueegsegger@swiss-it.ch> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: tcrypt - Fix memory leak in test_cipherDarren Jenkins2008-07-081-9/+1
| | | | | | | | | | | | | | | | Coverity CID: 2306 & 2307 RESOURCE_LEAK In the second for loop in test_cipher(), data is allocated space with kzalloc() and is only ever freed in an error case. Looking at this loop, data is written to this memory but nothing seems to read from it. So here is a patch removing the allocation, I think this is the right fix. Only compile tested. Signed-off-by: Darren Jenkins <darrenrjenkins@gmailcom> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] all: Clean up init()/fini()Kamalesh Babulal2008-04-211-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | On Thu, Mar 27, 2008 at 03:40:36PM +0100, Bodo Eggert wrote: > Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> wrote: > > > This patch cleanups the crypto code, replaces the init() and fini() > > with the <algorithm name>_init/_fini > > This part ist OK. > > > or init/fini_<algorithm name> (if the > > <algorithm name>_init/_fini exist) > > Having init_foo and foo_init won't be a good thing, will it? I'd start > confusing them. > > What about foo_modinit instead? Thanks for the suggestion, the init() is replaced with <algorithm name>_mod_init () and fini () is replaced with <algorithm name>_mod_fini. Signed-off-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] cts: Add CTS mode required for Kerberos AES supportKevin Coffman2008-04-211-2/+14
| | | | | | | | Implement CTS wrapper for CBC mode required for support of AES encryption support for Kerberos (rfc3962). Signed-off-by: Kevin Coffman <kwc@citi.umich.edu> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] tcrypt: Change the usage of the test vectorsSebastian Siewior2008-04-211-165/+181
| | | | | | | | | | | The test routines (test_{cipher,hash,aead}) are makeing a copy of the test template and are processing the encryption process in place. This patch changes the creation of the copy so it will work even if the source address of the input data isn't an array inside of the template but a pointer. Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] tcrypt: Shrink speed templatesSebastian Siewior2008-04-211-39/+50
| | | | | | | | | | | The speed templates as it look always the same. The key size is repeated for each block size and we test always the same block size. The addition of one inner loop makes it possible to get rid of the struct and it is possible to use a tiny u8 array :) Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] tcrypt: Group common speed templatesSebastian Siewior2008-04-211-37/+33
| | | | | | | | | Some crypto ciphers which are impleneted support similar key sizes (16,24 & 32 byte). They can be grouped together and use a common templatte instead of their own which contains the same data. Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] tcrypt: Make xcbc available as a standalone testHerbert Xu2008-01-101-0/+6
| | | | | | | Currently the gcm(aes) tests have to be taken together with all other algorithms. This patch makes it available by itself at number 106. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] tcrypt: Zero axbuf in the right functionHerbert Xu2008-01-101-1/+1
| | | | | | | The axbuf buffer is used by test_aead and therefore should be zeroed there instead of in test_hash. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] tcrypt: Add CCM vectorsJoy Latten2008-01-101-2/+29
| | | | | | | | | | | | | This patch adds 7 test vectors to tcrypt for CCM. The test vectors are from rfc 3610. There are about 10 more test vectors in RFC 3610 and 4 or 5 more in NIST. I can add these as time permits. I also needed to set authsize. CCM has a prerequisite of authsize. Signed-off-by: Joy Latten <latten@austin.ibm.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] ctr: Refactor into ctr and rfc3686Herbert Xu2008-01-101-4/+4
| | | | | | | | | | | | As discussed previously, this patch moves the basic CTR functionality into a chainable algorithm called ctr. The IPsec-specific variant of it is now placed on top with the name rfc3686. So ctr(aes) gives a chainable cipher with IV size 16 while the IPsec variant will be called rfc3686(ctr(aes)). This patch also adjusts gcm accordingly. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] tcrypt: Added salsa20 speed testTan Swee Heng2008-01-101-0/+5
| | | | | | | | This patch adds a simple speed test for salsa20. Usage: modprobe tcrypt mode=206 Signed-of-by: Tan Swee Heng <thesweeheng@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] lzo: Add LZO compression algorithm supportZoltan Sogor2008-01-101-1/+8
| | | | | | | Add LZO compression algorithm support Signed-off-by: Zoltan Sogor <weth@inf.u-szeged.hu> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] tcrypt: Add common compression tester functionZoltan Sogor2008-01-101-13/+20
| | | | | | | | Add common compression tester function Modify deflate test case to use the common compressor test function Signed-off-by: Zoltan Sogor <weth@inf.u-szeged.hu> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] gcm: Fix ICV handlingHerbert Xu2008-01-101-28/+16
| | | | | | | | | | | | | The crypto_aead convention for ICVs is to include it directly in the output. If we decided to change this in future then we would make the ICV (if the algorithm has an explicit one) available in the request itself. For now no algorithm needs this so this patch changes gcm to conform to this convention. It also adjusts the tcrypt aead tests to take this into account. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] tcrypt: Make gcm available as a standalone testHerbert Xu2008-01-101-0/+7
| | | | | | | Currently the gcm(aes) tests have to be taken together with all other ciphers. This patch makes it available by itself at number 35. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] tcrypt: Use print_hex_dump from linux/kernel.hDenis Cheng2008-01-101-4/+3
| | | | | | | These utilities implemented in lib/hexdump.c are more handy, please use this. Signed-off-by: Denis Cheng <crquan@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] tcrypt: Support for large test vectorsTan Swee Heng2008-01-101-36/+34
| | | | | | | | | | Currently the number of entries in a cipher test vector template is limited by TVMEMSIZE/sizeof(struct cipher_testvec). This patch circumvents the problem by pointing cipher_tv to each entry in the template, rather than the template itself. Signed-off-by: Tan Swee Heng <thesweeheng@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] gcm: New algorithmMikko Herranen2008-01-101-0/+5
| | | | | | | | | | | Add GCM/GMAC support to cryptoapi. GCM (Galois/Counter Mode) is an AEAD mode of operations for any block cipher with a block size of 16. The typical example is AES-GCM. Signed-off-by: Mikko Herranen <mh1@iki.fi> Reviewed-by: Mika Kukkonen <mika.kukkonen@nsn.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] tcrypt: Add aead supportMikko Herranen2008-01-101-9/+249
| | | | | | | | Add AEAD support to tcrypt, needed by GCM. Signed-off-by: Mikko Herranen <mh1@iki.fi> Reviewed-by: Mika Kukkonen <mika.kukkonen@nsn.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] salsa20: Salsa20 stream cipherTan Swee Heng2008-01-101-1/+7
| | | | | | | | | | | | | | | | This patch implements the Salsa20 stream cipher using the blkcipher interface. The core cipher code comes from Daniel Bernstein's submission to eSTREAM: http://www.ecrypt.eu.org/stream/svn/viewcvs.cgi/ecrypt/trunk/submissions/salsa20/full/ref/ The test vectors comes from: http://www.ecrypt.eu.org/stream/svn/viewcvs.cgi/ecrypt/trunk/submissions/salsa20/full/ It has been tested successfully with "modprobe tcrypt mode=34" on an UML instance. Signed-off-by: Tan Swee Heng <thesweeheng@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] sha256-generic: Extend sha256_generic.c to support SHA-224Jonathan Lynch2008-01-101-3/+19
| | | | | | | | | | | | | | | | | Resubmitting this patch which extends sha256_generic.c to support SHA-224 as described in FIPS 180-2 and RFC 3874. HMAC-SHA-224 as described in RFC4231 is then supported through the hmac interface. Patch includes test vectors for SHA-224 and HMAC-SHA-224. SHA-224 chould be chosen as a hash algorithm when 112 bits of security strength is required. Patch generated against the 2.6.24-rc1 kernel and tested against 2.6.24-rc1-git14 which includes fix for scatter gather implementation for HMAC. Signed-off-by: Jonathan Lynch <jonathan.lynch@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] ctr: Add countersizeJoy Latten2008-01-101-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds countersize to CTR mode. The template is now ctr(algo,noncesize,ivsize,countersize). For example, ctr(aes,4,8,4) indicates the counterblock will be composed of a salt/nonce that is 4 bytes, an iv that is 8 bytes and the counter is 4 bytes. When noncesize + ivsize < blocksize, CTR initializes the last block - ivsize - noncesize portion of the block to zero. Otherwise the counter block is composed of the IV (and nonce if necessary). If noncesize + ivsize == blocksize, then this indicates that user is passing in entire counterblock. Thus countersize indicates the amount of bytes in counterblock to use as the counter for incrementing. CTR will increment counter portion by 1, and begin encryption with that value. Note that CTR assumes the counter portion of the block that will be incremented is stored in big endian. Signed-off-by: Joy Latten <latten@austin.ibm.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] ctr: Add CTR (Counter) block cipher modeJoy Latten2008-01-101-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch implements CTR mode for IPsec. It is based off of RFC 3686. Please note: 1. CTR turns a block cipher into a stream cipher. Encryption is done in blocks, however the last block may be a partial block. A "counter block" is encrypted, creating a keystream that is xor'ed with the plaintext. The counter portion of the counter block is incremented after each block of plaintext is encrypted. Decryption is performed in same manner. 2. The CTR counterblock is composed of, nonce + IV + counter The size of the counterblock is equivalent to the blocksize of the cipher. sizeof(nonce) + sizeof(IV) + sizeof(counter) = blocksize The CTR template requires the name of the cipher algorithm, the sizeof the nonce, and the sizeof the iv. ctr(cipher,sizeof_nonce,sizeof_iv) So for example, ctr(aes,4,8) specifies the counterblock will be composed of 4 bytes from a nonce, 8 bytes from the iv, and 4 bytes for counter since aes has a blocksize of 16 bytes. 3. The counter portion of the counter block is stored in big endian for conformance to rfc 3686. Signed-off-by: Joy Latten <latten@austin.ibm.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] tcrypt: Move sg_init_table out of timing loopsHerbert Xu2007-10-271-6/+14
| | | | | | | | This patch moves the sg_init_table out of the timing loops for hash algorithms so that it doesn't impact on the speed test results. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [CRYPTO]: Initialize TCRYPT on-stack scatterlist objects correctly.David S. Miller2007-10-261-11/+13
| | | | | | Use sg_init_one() and sg_init_table() as needed. Signed-off-by: David S. Miller <davem@davemloft.net>
* [SG] Update crypto/ to sg helpersJens Axboe2007-10-221-2/+2
| | | | Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* [CRYPTO] xts: XTS blockcipher mode implementation without partial blocksRik Snel2007-10-111-0/+12
| | | | | | | | | | | | | | | XTS currently considered to be the successor of the LRW mode by the IEEE1619 workgroup. LRW was discarded, because it was not secure if the encyption key itself is encrypted with LRW. XTS does not have this problem. The implementation is pretty straightforward, a new function was added to gf128mul to handle GF(128) elements in ble format. Four testvectors from the specification http://grouper.ieee.org/groups/1619/email/pdf00086.pdf were added, and they verify on my system. Signed-off-by: Rik Snel <rsnel@cube.dyndns.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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