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* [CRYPTO] api: Add crypto_comp and crypto_has_*Herbert Xu2006-09-211-0/+14
| | | | | | | | This patch adds the crypto_comp type to complete the compile-time checking conversion. The functions crypto_has_alg and crypto_has_cipher, etc. are also added to replace crypto_alg_available. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] digest: Remove old HMAC implementationHerbert Xu2006-09-214-117/+2
| | | | | | | | This patch removes the old HMAC implementation now that nobody uses it anymore. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [CRYPTO] tcrypt: Use HMAC template and hash interfaceHerbert Xu2006-09-212-165/+213
| | | | | | | | | This patch converts tcrypt to use the new HMAC template rather than the hard-coded version of HMAC. It also converts all digest users to use the new cipher interface. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [CRYPTO] hmac: Add crypto template implementationHerbert Xu2006-09-212-6/+236
| | | | | | | | | | | | | This patch rewrites HMAC as a crypto template. This means that HMAC is no longer a hard-coded part of the API. It's now a template that generates standard digest algorithms like any other. The old HMAC is preserved until all current users are converted. The same structure can be used by other MACs such as AES-XCBC-MAC. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [CRYPTO] digest: Added user API for new hash typeHerbert Xu2006-09-216-36/+177
| | | | | | | | | | | | | | | | | The existing digest user interface is inadequate for support asynchronous operations. For one it doesn't return a value to indicate success or failure, nor does it take a per-operation descriptor which is essential for the issuing of requests while other requests are still outstanding. This patch is the first in a series of steps to remodel the interface for asynchronous operations. For the ease of transition the new interface will be known as "hash" while the old one will remain as "digest". This patch also changes sg_next to allow chaining. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] api: Mark parts of cipher interface as deprecatedHerbert Xu2006-09-211-6/+28
| | | | | | | | Mark the parts of the cipher interface that have been replaced by block ciphers as deprecated. Thanks to Andrew Morton for suggesting doing this before removing them completely. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] tcrypt: Use block ciphers where applicableHerbert Xu2006-09-211-176/+259
| | | | | | | This patch converts tcrypt to use the new block cipher type where applicable. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] s390: Added block cipher versions of CBC/ECBHerbert Xu2006-09-211-0/+2
| | | | | | | | This patch adds block cipher algorithms for S390. Once all users of the old cipher type have been converted the existing CBC/ECB non-block cipher operations will be removed. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] cipher: Added block ciphers for CBC/ECBHerbert Xu2006-09-215-1/+544
| | | | | | | | | | | | This patch adds two block cipher algorithms, CBC and ECB. These are implemented as templates on top of existing single-block cipher algorithms. They invoke the single-block cipher through the new encrypt_one/decrypt_one interface. This also optimises the in-place encryption and decryption to remove the cost of an IV copy each round. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] cipher: Added block cipher typeHerbert Xu2006-09-213-0/+411
| | | | | | | | | | | | | | | | | | | This patch adds the new type of block ciphers. Unlike current cipher algorithms which operate on a single block at a time, block ciphers operate on an arbitrarily long linear area of data. As it is block-based, it will skip any data remaining at the end which cannot form a block. The block cipher has one major difference when compared to the existing block cipher implementation. The sg walking is now performed by the algorithm rather than the cipher mid-layer. This is needed for drivers that directly support sg lists. It also improves performance for all algorithms as it reduces the total number of indirect calls by one. In future the existing cipher algorithm will be converted to only have a single-block interface. This will be done after all existing users have switched over to the new block cipher type. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] scatterwalk: Prepare for block ciphersHerbert Xu2006-09-213-82/+82
| | | | | | | | | | | | | | | | | | | | | This patch prepares the scatterwalk code for use by the new block cipher type. Firstly it halves the size of scatter_walk on 32-bit platforms. This is important as we allocate at least two of these objects on the stack for each block cipher operation. It also exports the symbols since the block cipher code can be built as a module. Finally there is a hack in scatterwalk_unmap that relies on progress being made. Unfortunately, for hardware crypto we can't guarantee progress to be made since the hardware can fail. So this also gets rid of the hack by not advancing the address returned by scatterwalk_map. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] cipher: Added encrypt_one/decrypt_oneHerbert Xu2006-09-211-0/+48
| | | | | | | | | | | | This patch adds two new operations for the simple cipher that encrypts or decrypts a single block at a time. This will be the main interface after the existing block operations have moved over to the new block ciphers. It also adds the crypto_cipher type which is currently only used on the new operations but will be extended to setkey as well once existing users have been converted to use block ciphers where applicable. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] api: Added crypto_type supportHerbert Xu2006-09-212-10/+27
| | | | | | | | | | | This patch adds the crypto_type structure which will be used for all new crypto algorithm types, beginning with block ciphers. The primary purpose of this abstraction is to allow different crypto_type objects for crypto algorithms of the same type, in particular, there will be a different crypto_type objects for asynchronous algorithms. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] api: Feed flag directly to crypto_yieldHerbert Xu2006-09-213-4/+4
| | | | | | | | | The sleeping flag used to determine whether crypto_yield can actually yield is really a per-operation flag rather than a per-tfm flag. This patch changes crypto_yield to take a flag directly so that we can start using a per-operation flag instead the tfm flag. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] api: Added crypto_alloc_baseHerbert Xu2006-09-211-0/+60
| | | | | | | | | | | | | | | | | | | | | | | | Up until now all crypto transforms have been of the same type, struct crypto_tfm, regardless of whether they are ciphers, digests, or other types. As a result of that, we check the types at run-time before each crypto operation. This is rather cumbersome. We could instead use different C types for each crypto type to ensure that the correct types are used at compile time. That is, we would have crypto_cipher/crypto_digest instead of just crypto_tfm. The appropriate type would then be required for the actual operations such as crypto_digest_digest. Now that we have the type/mask fields when looking up algorithms, it is easy to request for an algorithm of the precise type that the user wants. However, crypto_alloc_tfm currently does not expose these new attributes. This patch introduces the function crypto_alloc_base which will carry these new parameters. It will be renamed to crypto_alloc_tfm once all existing users have been converted. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] api: Added asynchronous flagHerbert Xu2006-09-211-2/+3
| | | | | | | This patch adds the asynchronous flag and changes all existing users to only look up algorithms that are synchronous. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] api: Add common instance initialisation codeHerbert Xu2006-09-211-0/+53
| | | | | | | | This patch adds the helpers crypto_get_attr_alg and crypto_alloc_instance which can be used by simple one-argument templates like hmac to process input parameters and allocate instances. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] cipher: Removed special IV checks for ECBHerbert Xu2006-09-211-0/+2
| | | | | | | | This patch makes IV operations on ECB fail through nocrypt_iv rather than calling BUG(). This is needed to generalise CBC/ECB using the template mechanism. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] tcrypt: Use test_hash for crc32cHerbert Xu2006-09-212-105/+180
| | | | | | | | Now that crc32c has been fixed to conform with standard digest semantics, we can use test_hash for it. I've turned the last test into a chunky test. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] digest: Store temporary digest in tfmHerbert Xu2006-09-212-7/+18
| | | | | | | | | When the final result location is unaligned, we store the digest in a temporary buffer before copying it to the final location. Currently that buffer sits on the stack. This patch moves it to an area in the tfm, just like the CBC IV buffer. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] api: Get rid of flags argument to setkeyHerbert Xu2006-09-2117-75/+42
| | | | | | | | | | | | | | | Now that the tfm is passed directly to setkey instead of the ctx, we no longer need to pass the &tfm->crt_flags pointer. This patch also gets rid of a few unnecessary checks on the key length for ciphers as the cipher layer guarantees that the key length is within the bounds specified by the algorithm. Rather than testing dia_setkey every time, this patch does it only once during crypto_alloc_tfm. The redundant check from crypto_digest_setkey is also removed. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] crc32c: Fix unconventional setkey usageHerbert Xu2006-09-212-10/+19
| | | | | | | | | | | The convention for setkey is that once it is set it should not change, in particular, init must not wipe out the key set by it. In fact, init should always be used after setkey before any digestion is performed. The only user of crc32c that sets the key is tcrypt. This patch adds the necessary init calls there. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] sha: Add module aliases for sha1 / sha256Michal Ludvig2006-09-212-0/+6
| | | | | | | | | | Crypto modules should be loadable by their .cra_driver_name, so we should make MODULE_ALIAS()es with these names. This patch adds aliases for SHA1 and SHA256 only as that's what we need for PadLock-SHA driver. Signed-off-by: Michal Ludvig <michal@logix.cz> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] api: Added spawnsHerbert Xu2006-09-214-53/+265
| | | | | | | | | | Spawns lock a specific crypto algorithm in place. They can then be used with crypto_spawn_tfm to allocate a tfm for that algorithm. When the base algorithm of a spawn is deregistered, all its spawns will be automatically removed. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [CRYPTO] api: Allow algorithm lookup by typeHerbert Xu2006-09-214-18/+40
| | | | | | | | | | | This patch also adds the infrastructure to pick an algorithm based on their type. For example, this allows you to select the encryption algorithm "aes", instead of any algorithm registered under the name "aes". For now this is only accessible internally. Eventually it will be made available through crypto_alloc_tfm. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [CRYPTO] api: Add cryptomgrHerbert Xu2006-09-214-1/+164
| | | | | | | | | | | | | | The cryptomgr module is a simple manager of crypto algorithm instances. It ensures that parameterised algorithms of the type tmpl(alg) (e.g., cbc(aes)) are always created. This is meant to satisfy the needs for most users. For more complex cases such as deeper combinations or multiple parameters, a netlink module will be created which allows arbitrary expressions to be parsed in user-space. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [CRYPTO] api: Added event notificationHerbert Xu2006-09-213-13/+196
| | | | | | | | | This patch adds a notifier chain for algorithm/template registration events. This will be used to register compound algorithms such as cbc(aes). In future this will also be passed onto user-space through netlink. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [CRYPTO] api: Add template registrationHerbert Xu2006-09-212-22/+151
| | | | | | | | | A crypto_template generates a crypto_alg object when given a set of parameters. this patch adds the basic data structure fo templates and code to handle their registration/deregistration. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [CRYPTO] api: Split out low-level APIHerbert Xu2006-09-216-133/+184
| | | | | | | | | | The crypto API is made up of the part facing users such as IPsec and the low-level part which is used by cryptographic entities such as algorithms. This patch splits out the latter so that the two APIs are more clearly delineated. As a bonus the low-level API can now be modularised if all algorithms are built as modules. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] api: Add crypto_alg reference countingHerbert Xu2006-09-212-6/+29
| | | | | | | | | | | | | Up until now we've relied on module reference counting to ensure that the crypto_alg structures don't disappear from under us. This was good enough as long as each crypto_alg came from exactly one module. However, with parameterised crypto algorithms a crypto_alg object may need two or more modules to operate. This means that we need to count the references to the crypto_alg object directly. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [CRYPTO] api: Rename crypto_alg_get to crypto_mod_getHerbert Xu2006-09-211-7/+7
| | | | | | | | | | | | | The functions crypto_alg_get and crypto_alg_put operates on the crypto modules rather than the algorithms. Therefore it makes sense to call them crypto_mod_get and crypto_alg_put respectively. This is needed because we need to have real algorithm reference counters for parameterised algorithms as they can be unregistered from below by when their parameter algorithms are themselves unregistered. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [CRYPTO] twofish: x86-64 assembly versionJoachim Fritschi2006-09-211-0/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The patch passed the trycpt tests and automated filesystem tests. This rewrite resulted in some nice perfomance increase over my last patch. Short summary of the tcrypt benchmarks: Twofish Assembler vs. Twofish C (256bit 8kb block CBC) encrypt: -27% Cycles decrypt: -23% Cycles Twofish Assembler vs. AES Assembler (128bit 8kb block CBC) encrypt: +18% Cycles decrypt: +15% Cycles Twofish Assembler vs. AES Assembler (256bit 8kb block CBC) encrypt: -9% Cycles decrypt: -8% Cycles Full Output: http://homepages.tu-darmstadt.de/~fritschi/twofish/tcrypt-speed-twofish-c-x86_64.txt http://homepages.tu-darmstadt.de/~fritschi/twofish/tcrypt-speed-twofish-asm-x86_64.txt http://homepages.tu-darmstadt.de/~fritschi/twofish/tcrypt-speed-aes-asm-x86_64.txt Here is another bonnie++ benchmark with encrypted filesystems. Most runs maxed out the hd. It should give some idea what the module can do for encrypted filesystem performance even though you can't see the full numbers. http://homepages.tu-darmstadt.de/~fritschi/twofish/output_20060610_130806_x86_64.html Signed-off-by: Joachim Fritschi <jfritschi@freenet.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] twofish: i586 assembly versionJoachim Fritschi2006-09-211-0/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The patch passed the trycpt tests and automated filesystem tests. This rewrite resulted in some nice perfomance increase over my last patch. Short summary of the tcrypt benchmarks: Twofish Assembler vs. Twofish C (256bit 8kb block CBC) encrypt: -33% Cycles decrypt: -45% Cycles Twofish Assembler vs. AES Assembler (128bit 8kb block CBC) encrypt: +3% Cycles decrypt: -22% Cycles Twofish Assembler vs. AES Assembler (256bit 8kb block CBC) encrypt: -20% Cycles decrypt: -36% Cycles Full Output: http://homepages.tu-darmstadt.de/~fritschi/twofish/tcrypt-speed-twofish-asm-i586.txt http://homepages.tu-darmstadt.de/~fritschi/twofish/tcrypt-speed-twofish-c-i586.txt http://homepages.tu-darmstadt.de/~fritschi/twofish/tcrypt-speed-aes-asm-i586.txt Here is another bonnie++ benchmark with encrypted filesystems. All runs with the twofish assembler modules max out the drivespeed. It should give some idea what the module can do for encrypted filesystem performance even though you can't see the full numbers. http://homepages.tu-darmstadt.de/~fritschi/twofish/output_20060611_205432_x86.html Signed-off-by: Joachim Fritschi <jfritschi@freenet.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] twofish: Fix the priorityJoachim Fritschi2006-09-211-0/+2
| | | | | | | | This patch adds a proper driver name and priority to the generic c implemtation to allow coexistance of c and assembler modules. Signed-off-by: Joachim Fritschi <jfritschi@freenet.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] twofish: Split out common c codeJoachim Fritschi2006-09-214-697/+754
| | | | | | | | | | | | | | This patch splits up the twofish crypto routine into a common part ( key setup ) which will be uses by all twofish crypto modules ( generic-c , i586 assembler and x86_64 assembler ) and generic-c part. It also creates a new header file which will be used by all 3 modules. This eliminates all code duplication. Correctness was verified with the tcrypt module and automated test scripts. Signed-off-by: Joachim Fritschi <jfritschi@freenet.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] tcrypt: Forbid tcrypt from being built-inHerbert Xu2006-06-261-1/+1
| | | | | | | | It makes no sense to build tcrypt into the kernel. In fact, now that the driver init function's return status is being checked, it is in fact harmful to do so. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] tcrypt: Speed benchmark support for digest algorithmsMichal Ludvig2006-06-262-0/+206
| | | | | | | | | | | | This patch adds speed tests (benchmarks) for digest algorithms. Tests are run with different buffer sizes (16 bytes, ... 8 kBytes) and with each buffer multiple tests are run with different update() sizes (e.g. hash 64 bytes buffer in four 16 byte updates). There is no correctness checking of the result and all tests and algorithms use the same input buffer. Signed-off-by: Michal Ludvig <michal@logix.cz> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] tcrypt: Return -EAGAIN from module_init()Michal Ludvig2006-06-261-1/+8
| | | | | | | | | | Intentionaly return -EAGAIN from module_init() to ensure it doesn't stay loaded in the kernel. The module does all its work from init() and doesn't offer any runtime functionality => we don't need it in the memory, do we? Signed-off-by: Michal Ludvig <michal@logix.cz> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] api: Allow replacement when registering new algorithmsHerbert Xu2006-06-261-2/+2
| | | | | | | | We already allow asynchronous removal of existing algorithm modules. By allowing the replacement of existing algorithms, we can replace algorithms without having to wait for for all existing users to complete. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] api: Removed const from cra_name/cra_driver_nameHerbert Xu2006-06-261-1/+1
| | | | | | | | We do need to change these names now and even more so in future with instantiated algorithms. So let's stop lying to the compiler and get rid of the const modifiers. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] api: Added cra_init/cra_exitHerbert Xu2006-06-263-13/+11
| | | | | | | | | | | | | | | This patch adds the hooks cra_init/cra_exit which are called during a tfm's construction and destruction respectively. This will be used by the instances to allocate child tfm's. For now this lets us get rid of the coa_init/coa_exit functions which are used for exactly that purpose (unlike the dia_init function which is called for each transaction). In fact the coa_exit path is currently buggy as it may get called twice when an error is encountered during initialisation. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] api: Fixed incorrect passing of context instead of tfmMichal Ludvig2006-06-262-4/+4
| | | | | | | Fix a few omissions in passing TFM instead of CTX to algorithms. Signed-off-by: Michal Ludvig <michal@logix.cz> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] all: Pass tfm instead of ctx to algorithmsHerbert Xu2006-06-2625-229/+237
| | | | | | | | | | | | | | | | Up until now algorithms have been happy to get a context pointer since they know everything that's in the tfm already (e.g., alignment, block size). However, once we have parameterised algorithms, such information will be specific to each tfm. So the algorithm API needs to be changed to pass the tfm structure instead of the context pointer. This patch is basically a text substitution. The only tricky bit is the assembly routines that need to get the context pointer offset through asm-offsets.h. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] digest: Remove unnecessary zeroing during initHerbert Xu2006-06-263-4/+0
| | | | | | | | | Various digest algorithms operate one block at a time and therefore keep a temporary buffer of partial blocks. This buffer does not need to be initialised since there is a counter which indicates what is and isn't valid in it. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] digest: Add alignment handlingAtsushi Nemoto2006-06-266-15/+35
| | | | | | | | | Some hash modules load/store data words directly. The digest layer should pass properly aligned buffer to update()/final() method. This patch also add cra_alignmask to some hash modules. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] khazad: Use 32-bit reads on keyAtsushi Nemoto2006-06-261-3/+4
| | | | | | | | On 64-bit platform, reading 64-bit keys (which is supposed to be 32-bit aligned) at a time will result in unaligned access. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] aes: Fixed array boundary violationDavid McCullough2006-03-211-4/+3
| | | | | | | | | | | | | | The AES setkey routine writes 64 bytes to the E_KEY area even though there are only 60 bytes there. It is in fact safe since E_KEY is immediately follwed by D_KEY which is initialised afterwards. However, doing this may trigger undefined behaviour and makes Coverity unhappy. So by combining E_KEY and D_KEY into one array we sidestep this issue altogether. This problem was reported by Adrian Bunk. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] tcrypt: Fix key alignmentAtsushi Nemoto2006-03-211-12/+13
| | | | | | | | Force 32-bit alignment on keys in tcrypt test vectors. Also rearrange the structure to prevent unnecessary padding. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] all: Add missing cra_alignmaskAtsushi Nemoto2006-03-212-0/+2
| | | | | | | The "des3_ede" and "serpent" lack cra_alignmask. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* [CRYPTO] all: Use kzalloc where possibleEric Sesterhenn2006-03-212-5/+2
| | | | | | | | this patch converts crypto/ to kzalloc usage. Compile tested with allyesconfig. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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