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* crypto: aead - Add type-safe init/exit functionsHerbert Xu2015-06-031-0/+13
| | | | | | | | | | | | As it stands the only non-type safe functions left in the new AEAD interface are the cra_init/cra_exit functions. It means exposing the ugly __crypto_aead_cast to every AEAD implementor. This patch adds type-safe init/exit functions to AEAD. Existing algorithms are unaffected while new implementations can simply fill in these two instead of cra_init/cra_exit. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: doc - cover new AEAD interfaceStephan Mueller2015-06-031-1/+4
| | | | | | | | The patch updates the DocBook to cover the new AEAD interface implementation. Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: aead - Add common IV generation codeHerbert Xu2015-05-281-0/+24
| | | | | | | | This patch adds some common IV generation code currently duplicated by seqiv and echainiv. For example, the setkey and setauthsize functions are completely identical. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: aead - Document behaviour of AD in destination bufferHerbert Xu2015-05-281-4/+10
| | | | | | | | | | | | | | | | | This patch defines the behaviour of AD in the new interface more clearly. In particular, it specifies that if the user must copy the AD to the destination manually when src != dst if they wish to guarantee that the destination buffer contains a copy of the AD. The reason for this is that otherwise every AEAD implementation would have to perform such a copy when src != dst. In reality most users do in-place processing where src == dst so this is not an issue. This patch also kills some remaining references to cryptoff. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: drbg - use Jitter RNG to obtain seedStephan Mueller2015-05-271-0/+1
| | | | | | | | | | | | | | | | | | | | | During initialization, the DRBG now tries to allocate a handle of the Jitter RNG. If such a Jitter RNG is available during seeding, the DRBG pulls the required entropy/nonce string from get_random_bytes and concatenates it with a string of equal size from the Jitter RNG. That combined string is now the seed for the DRBG. Written differently, the initial seed of the DRBG is now: get_random_bytes(entropy/nonce) || jitterentropy (entropy/nonce) If the Jitter RNG is not available, the DRBG only seeds from get_random_bytes. CC: Andreas Steffen <andreas.steffen@strongswan.org> CC: Theodore Ts'o <tytso@mit.edu> CC: Sandy Harris <sandyinchina@gmail.com> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: drbg - add async seeding operationStephan Mueller2015-05-271-0/+2
| | | | | | | | | | | | | | The async seeding operation is triggered during initalization right after the first non-blocking seeding is completed. As required by the asynchronous operation of random.c, a callback function is provided that is triggered by random.c once entropy is available. That callback function performs the actual seeding of the DRBG. CC: Andreas Steffen <andreas.steffen@strongswan.org> CC: Theodore Ts'o <tytso@mit.edu> CC: Sandy Harris <sandyinchina@gmail.com> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: drbg - prepare for async seedingStephan Mueller2015-05-271-0/+2
| | | | | | | | | | | | | | | | | In order to prepare for the addition of the asynchronous seeding call, the invocation of seeding the DRBG is moved out into a helper function. In addition, a block of memory is allocated during initialization time that will be used as a scratchpad for obtaining entropy. That scratchpad is used for the initial seeding operation as well as by the asynchronous seeding call. The memory must be zeroized every time the DRBG seeding call succeeds to avoid entropy data lingering in memory. CC: Andreas Steffen <andreas.steffen@strongswan.org> CC: Theodore Ts'o <tytso@mit.edu> CC: Sandy Harris <sandyinchina@gmail.com> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: aead - Remove unused cryptoff parameterHerbert Xu2015-05-251-6/+1Star
| | | | | | | This patch removes the cryptoff parameter now that all users set it to zero. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: aead - Add crypto_aead_alg_ivsize/maxauthsizeHerbert Xu2015-05-252-15/+25
| | | | | | | | | | | AEAD algorithm implementors need to figure out a given algorithm's IV size and maximum authentication size. During the transition this is difficult to do as an algorithm could be new style or old style. This patch creates two helpers to make this easier. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: seqiv - Add support for new AEAD interfaceHerbert Xu2015-05-221-4/+3Star
| | | | | | | | | | | | | | | | | | | | This patch converts the seqiv IV generator to work with the new AEAD interface where IV generators are just normal AEAD algorithms. Full backwards compatibility is paramount at this point since no users have yet switched over to the new interface. Nor can they switch to the new interface until IV generation is fully supported by it. So this means we are adding two versions of seqiv alongside the existing one. The first one is the one that will be used when the underlying AEAD algorithm has switched over to the new AEAD interface. The second one handles the current case where the underlying AEAD algorithm still uses the old interface. Both versions export themselves through the new AEAD interface. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: null - Add default null skcipherHerbert Xu2015-05-221-0/+3
| | | | | | | This patch adds a default null skcipher for users such as gcm to perform copies on SG lists. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: aead - Add support for new AEAD implementationsHerbert Xu2015-05-222-4/+76
| | | | | | | | | | This patch adds the basic structure of the new AEAD type. Unlike the current version, there is no longer any concept of geniv. IV generation will still be carried out by wrappers but they will be normal AEAD algorithms that simply take the IPsec sequence number as the IV. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: aead - Add crypto_aead_maxauthsizeHerbert Xu2015-05-221-0/+5
| | | | | | | This patch adds the helper crypto_aead_maxauthsize to remove the need to directly dereference aead_alg internals by AEAD implementors. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: aead - Rename aead_alg to old_aead_algHerbert Xu2015-05-222-0/+7
| | | | | | | | | | | This patch is the first step in the introduction of a new AEAD alg type. Unlike normal conversions this patch only renames the existing aead_alg structure because there are external references to it. Those references will be removed after this patch. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: aead - Add new interface with single SG listHerbert Xu2015-05-221-6/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | The primary user of AEAD, IPsec includes the IV in the AD in most cases, except where it is implicitly authenticated by the underlying algorithm. The way it is currently implemented is a hack because we pass the data in piecemeal and the underlying algorithms try to stitch them back up into one piece. This is why this patch is adding a new interface that allows a single SG list to be passed in that contains everything so the algorithm implementors do not have to stitch. The new interface accepts a single source SG list and a single destination SG list. Both must be laid out as follows: AD, skipped data, plain/cipher text, ICV The ICV is not present from the source during encryption and from the destination during decryption. For the top-level IPsec AEAD algorithm the plain/cipher text will contain the generated (or received) IV. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: scatterwalk - Add scatterwalk_ffwd helperHerbert Xu2015-05-221-0/+4
| | | | | | | | | This patch adds the scatterwalk_ffwd helper which can create an SG list that starts in the middle of an existing SG list. The new list may either be part of the existing list or be a chain that latches onto part of the existing list. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: md5 - add MD5 initial vectorsLABBE Corentin2015-05-181-0/+5
| | | | | | | This patch simply adds the MD5 IV in the md5 header. Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: aead - Convert top level interface to new styleHerbert Xu2015-05-133-40/+467
| | | | | | | | | | | | | | | This patch converts the top-level aead interface to the new style. All user-level AEAD interface code have been moved into crypto/aead.h. The allocation/free functions have switched over to the new way of allocating tfms. This patch also removes the double indrection on setkey so the indirection now exists only at the alg level. Apart from these there are no user-visible changes. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: cryptd - Add missing aead.h inclusionHerbert Xu2015-05-131-0/+1
| | | | | | cryptd.h needs to include crypto/aead.h because it uses crypto_aead. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: aead - Add crypto_aead_set_reqsize helperHerbert Xu2015-05-131-0/+6
| | | | | | | This patch adds the helper crypto_aead_set_reqsize so that people don't have to directly access the aead internals to set the reqsize. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: api - Add crypto_grab_spawn primitiveHerbert Xu2015-05-131-0/+2
| | | | | | | | | | | | | | This patch adds a new primitive crypto_grab_spawn which is meant to replace crypto_init_spawn and crypto_init_spawn2. Under the new scheme the user no longer has to worry about reference counting the alg object before it is subsumed by the spawn. It is pretty much an exact copy of crypto_grab_aead. Prior to calling this function spawn->frontend and spawn->inst must have been set. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: pcomp - Constify (de)compression parametersDavid Howells2015-05-011-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | In testmgr, struct pcomp_testvec takes a non-const 'params' field, which is pointed to a const deflate_comp_params or deflate_decomp_params object. With gcc-5 this incurs the following warnings: In file included from ../crypto/testmgr.c:44:0: ../crypto/testmgr.h:28736:13: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-array-qualifiers] .params = &deflate_comp_params, ^ ../crypto/testmgr.h:28748:13: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-array-qualifiers] .params = &deflate_comp_params, ^ ../crypto/testmgr.h:28776:13: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-array-qualifiers] .params = &deflate_decomp_params, ^ ../crypto/testmgr.h:28800:13: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-array-qualifiers] .params = &deflate_decomp_params, ^ Fix this by making the parameters pointer const and constifying the things that use it. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: rng - Remove old low-level rng interfaceHerbert Xu2015-04-222-9/+4Star
| | | | | | | Now that all rng implementations have switched over to the new interface, we can remove the old low-level interface. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: drbg - Convert to new rng interfaceHerbert Xu2015-04-221-38/+12Star
| | | | | | | | | | | This patch converts the DRBG implementation to the new low-level rng interface. This allows us to get rid of struct drbg_gen by using the new RNG API instead. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Stephan Mueller <smueller@chronox.de>
* crypto: rng - Add multiple algorithm registration interfaceHerbert Xu2015-04-221-0/+2
| | | | | | | This patch adds the helpers that allow the registration and removal of multiple RNG algorithms. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: rng - Add crypto_rng_set_entropyHerbert Xu2015-04-222-0/+10
| | | | | | | | This patch adds the function crypto_rng_set_entropy. It is only meant to be used by testmgr when testing RNG implementations by providing fixed entropy data in order to verify test vectors. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: rng - Convert low-level crypto_rng to new styleHerbert Xu2015-04-222-2/+43
| | | | | | | | | | | This patch converts the low-level crypto_rng interface to the "new" style. This allows existing implementations to be converted over one- by-one. Once that is complete we can then remove the old rng interface. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: rng - Mark crypto_rng_reset seed as constHerbert Xu2015-04-221-6/+3Star
| | | | | | | | | There is no reason why crypto_rng_reset should modify the seed so this patch marks it as const. Since our algorithms don't export a const seed function yet we have to go through some contortions for now. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: rng - Introduce crypto_rng_generateHerbert Xu2015-04-211-2/+25
| | | | | | | | | This patch adds the new top-level function crypto_rng_generate which generates random numbers with additional input. It also extends the mid-level rng_gen_random function to take additional data as input. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: rng - Convert crypto_rng to new style crypto_typeHerbert Xu2015-04-211-22/+10Star
| | | | | | | | | | | | | This patch converts the top-level crypto_rng to the "new" style. It was the last algorithm type added before we switched over to the new way of doing things exemplified by shash. All users will automatically switch over to the new interface. Note that this patch does not touch the low-level interface to rng implementations. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: drbg - replace spinlock with mutexStephan Mueller2015-04-211-2/+2
| | | | | | | | | | | | | | | | | | | | | The creation of a shadow copy is intended to only hold a short term lock. But the drawback is that parallel users have a very similar DRBG state which only differs by a high-resolution time stamp. The DRBG will now hold a long term lock. Therefore, the lock is changed to a mutex which implies that the DRBG can only be used in process context. The lock now guards the instantiation as well as the entire DRBG generation operation. Therefore, multiple callers are fully serialized when generating a random number. As the locking is changed to use a long-term lock to avoid such similar DRBG states, the entire creation and maintenance of a shadow copy can be removed. Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds2015-04-156-6/+379
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull crypto update from Herbert Xu: "Here is the crypto update for 4.1: New interfaces: - user-space interface for AEAD - user-space interface for RNG (i.e., pseudo RNG) New hashes: - ARMv8 SHA1/256 - ARMv8 AES - ARMv8 GHASH - ARM assembler and NEON SHA256 - MIPS OCTEON SHA1/256/512 - MIPS img-hash SHA1/256 and MD5 - Power 8 VMX AES/CBC/CTR/GHASH - PPC assembler AES, SHA1/256 and MD5 - Broadcom IPROC RNG driver Cleanups/fixes: - prevent internal helper algos from being exposed to user-space - merge common code from assembly/C SHA implementations - misc fixes" * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (169 commits) crypto: arm - workaround for building with old binutils crypto: arm/sha256 - avoid sha256 code on ARMv7-M crypto: x86/sha512_ssse3 - move SHA-384/512 SSSE3 implementation to base layer crypto: x86/sha256_ssse3 - move SHA-224/256 SSSE3 implementation to base layer crypto: x86/sha1_ssse3 - move SHA-1 SSSE3 implementation to base layer crypto: arm64/sha2-ce - move SHA-224/256 ARMv8 implementation to base layer crypto: arm64/sha1-ce - move SHA-1 ARMv8 implementation to base layer crypto: arm/sha2-ce - move SHA-224/256 ARMv8 implementation to base layer crypto: arm/sha256 - move SHA-224/256 ASM/NEON implementation to base layer crypto: arm/sha1-ce - move SHA-1 ARMv8 implementation to base layer crypto: arm/sha1_neon - move SHA-1 NEON implementation to base layer crypto: arm/sha1 - move SHA-1 ARM asm implementation to base layer crypto: sha512-generic - move to generic glue implementation crypto: sha256-generic - move to generic glue implementation crypto: sha1-generic - move to generic glue implementation crypto: sha512 - implement base layer for SHA-512 crypto: sha256 - implement base layer for SHA-256 crypto: sha1 - implement base layer for SHA-1 crypto: api - remove instance when test failed crypto: api - Move alg ref count init to crypto_check_alg ...
| * crypto: sha512-generic - move to generic glue implementationArd Biesheuvel2015-04-101-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | This updated the generic SHA-512 implementation to use the generic shared SHA-512 glue code. It also implements a .finup hook crypto_sha512_finup() and exports it to other modules. The import and export() functions and the .statesize member are dropped, since the default implementation is perfectly suitable for this module. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * crypto: sha256-generic - move to generic glue implementationArd Biesheuvel2015-04-101-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | This updates the generic SHA-256 implementation to use the new shared SHA-256 glue code. It also implements a .finup hook crypto_sha256_finup() and exports it to other modules. The import and export() functions and the .statesize member are dropped, since the default implementation is perfectly suitable for this module. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * crypto: sha1-generic - move to generic glue implementationArd Biesheuvel2015-04-101-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | This updated the generic SHA-1 implementation to use the generic shared SHA-1 glue code. It also implements a .finup hook crypto_sha1_finup() and exports it to other modules. The import and export() functions and the .statesize member are dropped, since the default implementation is perfectly suitable for this module. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * crypto: sha512 - implement base layer for SHA-512Ard Biesheuvel2015-04-102-1/+132
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To reduce the number of copies of boilerplate code throughout the tree, this patch implements generic glue for the SHA-512 algorithm. This allows a specific arch or hardware implementation to only implement the special handling that it needs. The users need to supply an implementation of void (sha512_block_fn)(struct sha512_state *sst, u8 const *src, int blocks) and pass it to the SHA-512 base functions. For easy casting between the prototype above and existing block functions that take a 'u64 state[]' as their first argument, the 'state' member of struct sha512_state is moved to the base of the struct. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * crypto: sha256 - implement base layer for SHA-256Ard Biesheuvel2015-04-102-1/+129
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To reduce the number of copies of boilerplate code throughout the tree, this patch implements generic glue for the SHA-256 algorithm. This allows a specific arch or hardware implementation to only implement the special handling that it needs. The users need to supply an implementation of void (sha256_block_fn)(struct sha256_state *sst, u8 const *src, int blocks) and pass it to the SHA-256 base functions. For easy casting between the prototype above and existing block functions that take a 'u32 state[]' as their first argument, the 'state' member of struct sha256_state is moved to the base of the struct. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * crypto: sha1 - implement base layer for SHA-1Ard Biesheuvel2015-04-102-1/+107
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To reduce the number of copies of boilerplate code throughout the tree, this patch implements generic glue for the SHA-1 algorithm. This allows a specific arch or hardware implementation to only implement the special handling that it needs. The users need to supply an implementation of void (sha1_block_fn)(struct sha1_state *sst, u8 const *src, int blocks) and pass it to the SHA-1 base functions. For easy casting between the prototype above and existing block functions that take a 'u32 state[]' as their first argument, the 'state' member of struct sha1_state is moved to the base of the struct. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * crypto: api - Change crypto_unregister_instance argument typeHerbert Xu2015-04-031-1/+1
| | | | | | | | | | | | | | | | This patch makes crypto_unregister_instance take a crypto_instance instead of a crypto_alg. This allows us to remove a duplicate CRYPTO_ALG_INSTANCE check in crypto_unregister_instance. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * crypto: rng - RNGs must return 0 in success caseStephan Mueller2015-03-091-2/+1Star
| | | | | | | | | | | | | | | | | | | | | | | | Change the RNGs to always return 0 in success case. This patch ensures that seqiv.c works with RNGs other than krng. seqiv expects that any return code other than 0 is an error. Without the patch, rfc4106(gcm(aes)) will not work when using a DRBG or an ANSI X9.31 RNG. Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* | crypto: af_alg - Allow to link sglTadeusz Struk2015-03-231-1/+3
|/ | | | | | | Allow to link af_alg sgls. Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds2015-02-142-9/+2Star
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull crypto update from Herbert Xu: "Here is the crypto update for 3.20: - Added 192/256-bit key support to aesni GCM. - Added MIPS OCTEON MD5 support. - Fixed hwrng starvation and race conditions. - Added note that memzero_explicit is not a subsitute for memset. - Added user-space interface for crypto_rng. - Misc fixes" * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (71 commits) crypto: tcrypt - do not allocate iv on stack for aead speed tests crypto: testmgr - limit IV copy length in aead tests crypto: tcrypt - fix buflen reminder calculation crypto: testmgr - mark rfc4106(gcm(aes)) as fips_allowed crypto: caam - fix resource clean-up on error path for caam_jr_init crypto: caam - pair irq map and dispose in the same function crypto: ccp - terminate ccp_support array with empty element crypto: caam - remove unused local variable crypto: caam - remove dead code crypto: caam - don't emit ICV check failures to dmesg hwrng: virtio - drop extra empty line crypto: replace scatterwalk_sg_next with sg_next crypto: atmel - Free memory in error path crypto: doc - remove colons in comments crypto: seqiv - Ensure that IV size is at least 8 bytes crypto: cts - Weed out non-CBC algorithms MAINTAINERS: add linux-crypto to hw random crypto: cts - Remove bogus use of seqiv crypto: qat - don't need qat_auth_state struct crypto: algif_rng - fix sparse non static symbol warning ...
| * crypto: replace scatterwalk_sg_next with sg_nextCristian Stoica2015-01-261-9/+1Star
| | | | | | | | | | | | | | | | | | | | | | | | Modify crypto drivers to use the generic SG helper since both of them are equivalent and the one from crypto is redundant. See also: 468577abe37ff7b453a9ac613e0ea155349203ae reverted in b2ab4a57b018aafbba35bff088218f5cc3d2142e Signed-off-by: Cristian Stoica <cristian.stoica@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * crypto: af_alg - add setsockopt for auth tag sizeStephan Mueller2014-12-221-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | Use setsockopt on the tfm FD to provide the authentication tag size for an AEAD cipher. This is achieved by adding a callback function which is intended to be used by the AEAD AF_ALG implementation. The optlen argument of the setsockopt specifies the authentication tag size to be used with the AEAD tfm. Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* | crypto: switch af_alg_make_sg() to iov_iterAl Viro2015-02-041-2/+1Star
|/ | | | | | | | | | | With that, all ->sendmsg() instances are converted to iov_iter primitives and are agnostic wrt the kind of iov_iter they are working with. So's the last remaining ->recvmsg() instance that wasn't kind-agnostic yet. All ->sendmsg() and ->recvmsg() advance ->msg_iter by the amount actually copied and none of them modifies the underlying iovec, etc. Cc: linux-crypto@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* crypto: af_alg - add user space interface for AEADStephan Mueller2014-12-051-0/+1
| | | | | | | | | | | | | | AEAD requires the caller to specify the following information separate from the data stream. This information allows the AEAD interface handler to identify the AAD, ciphertext/plaintext and the authentication tag: * Associated authentication data of arbitrary length and length * Length of authentication tag for encryption Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: doc - document uncovered member variablesStephan Mueller2014-11-171-1/+6
| | | | | | | | | Fix documentation typo for shash_alg->descsize. Add documentation for initially uncovered member variables. Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: doc - SHASH API documentationStephan Mueller2014-11-131-0/+164
| | | | | | | | The API function calls exported by the kernel crypto API for SHASHes to be used by consumers are documented. Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: doc - AHASH API documentationStephan Mueller2014-11-131-0/+228
| | | | | | | | The API function calls exported by the kernel crypto API for AHASHes to be used by consumers are documented. Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: doc - hash data structuresStephan Mueller2014-11-131-0/+95
| | | | | | | | The hash data structures needed to be filled in by cipher developers are documented. Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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