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2022-10-11treewide: use get_random_{u8,u16}() when possible, part 1Jason A. Donenfeld
Rather than truncate a 32-bit value to a 16-bit value or an 8-bit value, simply use the get_random_{u8,u16}() functions, which are faster than wasting the additional bytes from a 32-bit value. This was done mechanically with this coccinelle script: @@ expression E; identifier get_random_u32 =~ "get_random_int|prandom_u32|get_random_u32"; typedef u16; typedef __be16; typedef __le16; typedef u8; @@ ( - (get_random_u32() & 0xffff) + get_random_u16() | - (get_random_u32() & 0xff) + get_random_u8() | - (get_random_u32() % 65536) + get_random_u16() | - (get_random_u32() % 256) + get_random_u8() | - (get_random_u32() >> 16) + get_random_u16() | - (get_random_u32() >> 24) + get_random_u8() | - (u16)get_random_u32() + get_random_u16() | - (u8)get_random_u32() + get_random_u8() | - (__be16)get_random_u32() + (__be16)get_random_u16() | - (__le16)get_random_u32() + (__le16)get_random_u16() | - prandom_u32_max(65536) + get_random_u16() | - prandom_u32_max(256) + get_random_u8() | - E->inet_id = get_random_u32() + E->inet_id = get_random_u16() ) @@ identifier get_random_u32 =~ "get_random_int|prandom_u32|get_random_u32"; typedef u16; identifier v; @@ - u16 v = get_random_u32(); + u16 v = get_random_u16(); @@ identifier get_random_u32 =~ "get_random_int|prandom_u32|get_random_u32"; typedef u8; identifier v; @@ - u8 v = get_random_u32(); + u8 v = get_random_u8(); @@ identifier get_random_u32 =~ "get_random_int|prandom_u32|get_random_u32"; typedef u16; u16 v; @@ - v = get_random_u32(); + v = get_random_u16(); @@ identifier get_random_u32 =~ "get_random_int|prandom_u32|get_random_u32"; typedef u8; u8 v; @@ - v = get_random_u32(); + v = get_random_u8(); // Find a potential literal @literal_mask@ expression LITERAL; type T; identifier get_random_u32 =~ "get_random_int|prandom_u32|get_random_u32"; position p; @@ ((T)get_random_u32()@p & (LITERAL)) // Examine limits @script:python add_one@ literal << literal_mask.LITERAL; RESULT; @@ value = None if literal.startswith('0x'): value = int(literal, 16) elif literal[0] in '123456789': value = int(literal, 10) if value is None: print("I don't know how to handle %s" % (literal)) cocci.include_match(False) elif value < 256: coccinelle.RESULT = cocci.make_ident("get_random_u8") elif value < 65536: coccinelle.RESULT = cocci.make_ident("get_random_u16") else: print("Skipping large mask of %s" % (literal)) cocci.include_match(False) // Replace the literal mask with the calculated result. @plus_one@ expression literal_mask.LITERAL; position literal_mask.p; identifier add_one.RESULT; identifier FUNC; @@ - (FUNC()@p & (LITERAL)) + (RESULT() & LITERAL) Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Yury Norov <yury.norov@gmail.com> Acked-by: Jakub Kicinski <kuba@kernel.org> Acked-by: Toke Høiland-Jørgensen <toke@toke.dk> # for sch_cake Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2022-10-11treewide: use prandom_u32_max() when possible, part 1Jason A. Donenfeld
Rather than incurring a division or requesting too many random bytes for the given range, use the prandom_u32_max() function, which only takes the minimum required bytes from the RNG and avoids divisions. This was done mechanically with this coccinelle script: @basic@ expression E; type T; identifier get_random_u32 =~ "get_random_int|prandom_u32|get_random_u32"; typedef u64; @@ ( - ((T)get_random_u32() % (E)) + prandom_u32_max(E) | - ((T)get_random_u32() & ((E) - 1)) + prandom_u32_max(E * XXX_MAKE_SURE_E_IS_POW2) | - ((u64)(E) * get_random_u32() >> 32) + prandom_u32_max(E) | - ((T)get_random_u32() & ~PAGE_MASK) + prandom_u32_max(PAGE_SIZE) ) @multi_line@ identifier get_random_u32 =~ "get_random_int|prandom_u32|get_random_u32"; identifier RAND; expression E; @@ - RAND = get_random_u32(); ... when != RAND - RAND %= (E); + RAND = prandom_u32_max(E); // Find a potential literal @literal_mask@ expression LITERAL; type T; identifier get_random_u32 =~ "get_random_int|prandom_u32|get_random_u32"; position p; @@ ((T)get_random_u32()@p & (LITERAL)) // Add one to the literal. @script:python add_one@ literal << literal_mask.LITERAL; RESULT; @@ value = None if literal.startswith('0x'): value = int(literal, 16) elif literal[0] in '123456789': value = int(literal, 10) if value is None: print("I don't know how to handle %s" % (literal)) cocci.include_match(False) elif value == 2**32 - 1 or value == 2**31 - 1 or value == 2**24 - 1 or value == 2**16 - 1 or value == 2**8 - 1: print("Skipping 0x%x for cleanup elsewhere" % (value)) cocci.include_match(False) elif value & (value + 1) != 0: print("Skipping 0x%x because it's not a power of two minus one" % (value)) cocci.include_match(False) elif literal.startswith('0x'): coccinelle.RESULT = cocci.make_expr("0x%x" % (value + 1)) else: coccinelle.RESULT = cocci.make_expr("%d" % (value + 1)) // Replace the literal mask with the calculated result. @plus_one@ expression literal_mask.LITERAL; position literal_mask.p; expression add_one.RESULT; identifier FUNC; @@ - (FUNC()@p & (LITERAL)) + prandom_u32_max(RESULT) @collapse_ret@ type T; identifier VAR; expression E; @@ { - T VAR; - VAR = (E); - return VAR; + return E; } @drop_var@ type T; identifier VAR; @@ { - T VAR; ... when != VAR } Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Yury Norov <yury.norov@gmail.com> Reviewed-by: KP Singh <kpsingh@kernel.org> Reviewed-by: Jan Kara <jack@suse.cz> # for ext4 and sbitmap Reviewed-by: Christoph Böhmwalder <christoph.boehmwalder@linbit.com> # for drbd Acked-by: Jakub Kicinski <kuba@kernel.org> Acked-by: Heiko Carstens <hca@linux.ibm.com> # for s390 Acked-by: Ulf Hansson <ulf.hansson@linaro.org> # for mmc Acked-by: Darrick J. Wong <djwong@kernel.org> # for xfs Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2022-09-02crypto: testmgr - fix indentation for test_acomp() argsLucas Segarra Fernandez
Set right indentation for test_acomp(). Signed-off-by: Lucas Segarra Fernandez <lucas.segarra.fernandez@intel.com> Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-08-19crypto: testmgr - don't generate WARN for missing modulesRobert Elliott
This userspace command: modprobe tcrypt or modprobe tcrypt mode=0 runs all the tcrypt test cases numbered <200 (i.e., all the test cases calling tcrypt_test() and returning return values). Tests are sparsely numbered from 0 to 1000. For example: modprobe tcrypt mode=12 tests sha512, and modprobe tcrypt mode=152 tests rfc4543(gcm(aes))) - AES-GCM as GMAC The test manager generates WARNING crashdumps every time it attempts a test using an algorithm that is not available (not built-in to the kernel or available as a module): alg: skcipher: failed to allocate transform for ecb(arc4): -2 ------------[ cut here ]----------- alg: self-tests for ecb(arc4) (ecb(arc4)) failed (rc=-2) WARNING: CPU: 9 PID: 4618 at crypto/testmgr.c:5777 alg_test+0x30b/0x510 [50 more lines....] ---[ end trace 0000000000000000 ]--- If the kernel is compiled with CRYPTO_USER_API_ENABLE_OBSOLETE disabled (the default), then these algorithms are not compiled into the kernel or made into modules and trigger WARNINGs: arc4 tea xtea khazad anubis xeta seed Additionally, any other algorithms that are not enabled in .config will generate WARNINGs. In RHEL 9.0, for example, the default selection of algorithms leads to 16 WARNING dumps. One attempt to fix this was by modifying tcrypt_test() to check crypto_has_alg() and immediately return 0 if crypto_has_alg() fails, rather than proceed and return a non-zero error value that causes the caller (alg_test() in crypto/testmgr.c) to invoke WARN(). That knocks out too many algorithms, though; some combinations like ctr(des3_ede) would work. Instead, change the condition on the WARN to ignore a return value is ENOENT, which is the value returned when the algorithm or combination of algorithms doesn't exist. Add a pr_warn to communicate that information in case the WARN is skipped. This approach allows algorithm tests to work that are combinations, not provided by one driver, like ctr(blowfish). Result - no more WARNINGs: modprobe tcrypt [ 115.541765] tcrypt: testing md5 [ 115.556415] tcrypt: testing sha1 [ 115.570463] tcrypt: testing ecb(des) [ 115.585303] cryptomgr: alg: skcipher: failed to allocate transform for ecb(des): -2 [ 115.593037] cryptomgr: alg: self-tests for ecb(des) using ecb(des) failed (rc=-2) [ 115.593038] tcrypt: testing cbc(des) [ 115.610641] cryptomgr: alg: skcipher: failed to allocate transform for cbc(des): -2 [ 115.618359] cryptomgr: alg: self-tests for cbc(des) using cbc(des) failed (rc=-2) ... Signed-off-by: Robert Elliott <elliott@hpe.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-08-19crypto: testmgr - extend acomp tests for NULL destination bufferLucas Segarra Fernandez
Acomp API supports NULL destination buffer for compression and decompression requests. In such cases allocation is performed by API. Add test cases for crypto_acomp_compress() and crypto_acomp_decompress() with dst buffer allocated by API. Tests will only run if CONFIG_CRYPTO_MANAGER_EXTRA_TESTS=y. Signed-off-by: Lucas Segarra Fernandez <lucas.segarra.fernandez@intel.com> Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-07-15crypto: testmgr - add ARIA testmgr testsTaehee Yoo
It contains ARIA ecb(aria), cbc(aria), cfb(aria), ctr(aria), and gcm(aria). ecb testvector is from RFC standard. cbc, cfb, and ctr testvectors are from KISA[1], who developed ARIA algorithm. gcm(aria) is from openssl test vector. [1] https://seed.kisa.or.kr/kisa/kcmvp/EgovVerification.do (Korean) Signed-off-by: Taehee Yoo <ap420073@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-06-10crypto: blake2s - remove shash moduleJason A. Donenfeld
BLAKE2s has no currently known use as an shash. Just remove all of this unnecessary plumbing. Removing this shash was something we talked about back when we were making BLAKE2s a built-in, but I simply never got around to doing it. So this completes that project. Importantly, this fixs a bug in which the lib code depends on crypto_simd_disabled_for_test, causing linker errors. Also add more alignment tests to the selftests and compare SIMD and non-SIMD compression functions, to make up for what we lose from testmgr.c. Reported-by: gaochao <gaochao49@huawei.com> Cc: Eric Biggers <ebiggers@kernel.org> Cc: Ard Biesheuvel <ardb@kernel.org> Cc: stable@vger.kernel.org Fixes: 6048fdcc5f26 ("lib/crypto: blake2s: include as built-in") Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-06-10crypto: hctr2 - Add HCTR2 supportNathan Huckleberry
Add support for HCTR2 as a template. HCTR2 is a length-preserving encryption mode that is efficient on processors with instructions to accelerate AES and carryless multiplication, e.g. x86 processors with AES-NI and CLMUL, and ARM processors with the ARMv8 Crypto Extensions. As a length-preserving encryption mode, HCTR2 is suitable for applications such as storage encryption where ciphertext expansion is not possible, and thus authenticated encryption cannot be used. Currently, such applications usually use XTS, or in some cases Adiantum. XTS has the disadvantage that it is a narrow-block mode: a bitflip will only change 16 bytes in the resulting ciphertext or plaintext. This reveals more information to an attacker than necessary. HCTR2 is a wide-block mode, so it provides a stronger security property: a bitflip will change the entire message. HCTR2 is somewhat similar to Adiantum, which is also a wide-block mode. However, HCTR2 is designed to take advantage of existing crypto instructions, while Adiantum targets devices without such hardware support. Adiantum is also designed with longer messages in mind, while HCTR2 is designed to be efficient even on short messages. HCTR2 requires POLYVAL and XCTR as components. More information on HCTR2 can be found here: "Length-preserving encryption with HCTR2": https://eprint.iacr.org/2021/1441.pdf Signed-off-by: Nathan Huckleberry <nhuck@google.com> Reviewed-by: Ard Biesheuvel <ardb@kernel.org> Reviewed-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-06-10crypto: polyval - Add POLYVAL supportNathan Huckleberry
Add support for POLYVAL, an ε-Δ-universal hash function similar to GHASH. This patch only uses POLYVAL as a component to implement HCTR2 mode. It should be noted that POLYVAL was originally specified for use in AES-GCM-SIV (RFC 8452), but the kernel does not currently support this mode. POLYVAL is implemented as an shash algorithm. The implementation is modified from ghash-generic.c. For more information on POLYVAL see: Length-preserving encryption with HCTR2: https://eprint.iacr.org/2021/1441.pdf AES-GCM-SIV: Nonce Misuse-Resistant Authenticated Encryption: https://datatracker.ietf.org/doc/html/rfc8452 Signed-off-by: Nathan Huckleberry <nhuck@google.com> Reviewed-by: Eric Biggers <ebiggers@google.com> Reviewed-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-06-10crypto: xctr - Add XCTR supportNathan Huckleberry
Add a generic implementation of XCTR mode as a template. XCTR is a blockcipher mode similar to CTR mode. XCTR uses XORs and little-endian addition rather than big-endian arithmetic which has two advantages: It is slightly faster on little-endian CPUs and it is less likely to be implemented incorrect since integer overflows are not possible on practical input sizes. XCTR is used as a component to implement HCTR2. More information on XCTR mode can be found in the HCTR2 paper: https://eprint.iacr.org/2021/1441.pdf Signed-off-by: Nathan Huckleberry <nhuck@google.com> Reviewed-by: Eric Biggers <ebiggers@google.com> Reviewed-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-04-08crypto: testmgr - test in-place en/decryption with two sglistsEric Biggers
As was established in the thread https://lore.kernel.org/linux-crypto/20220223080400.139367-1-gilad@benyossef.com/T/#u, many crypto API users doing in-place en/decryption don't use the same scatterlist pointers for the source and destination, but rather use separate scatterlists that point to the same memory. This case isn't tested by the self-tests, resulting in bugs. This is the natural usage of the crypto API in some cases, so requiring API users to avoid this usage is not reasonable. Therefore, update the self-tests to start testing this case. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-03-26Merge tag 'for-5.18/64bit-pi-2022-03-25' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull block layer 64-bit data integrity support from Jens Axboe: "This adds support for 64-bit data integrity in the block layer and in NVMe" * tag 'for-5.18/64bit-pi-2022-03-25' of git://git.kernel.dk/linux-block: crypto: fix crc64 testmgr digest byte order nvme: add support for enhanced metadata block: add pi for extended integrity crypto: add rocksoft 64b crc guard tag framework lib: add rocksoft model crc64 linux/kernel: introduce lower_48_bits function asm-generic: introduce be48 unaligned accessors nvme: allow integrity on extended metadata formats block: support pi with extended metadata
2022-03-07crypto: add rocksoft 64b crc guard tag frameworkKeith Busch
Hardware specific features may be able to calculate a crc64, so provide a framework for drivers to register their implementation. If nothing is registered, fallback to the generic table lookup implementation. The implementation is modeled after the crct10dif equivalent. Signed-off-by: Keith Busch <kbusch@kernel.org> Link: https://lore.kernel.org/r/20220303201312.3255347-7-kbusch@kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-03-03crypto: dh - disallow plain "dh" usage in FIPS modeNicolai Stange
SP800-56Arev3, sec. 5.5.2 ("Assurance of Domain-Parameter Validity") asserts that an implementation needs to verify domain paramtere validity, which boils down to either - the domain parameters corresponding to some known safe-prime group explicitly listed to be approved in the document or - for parameters conforming to a "FIPS 186-type parameter-size set", that the implementation needs to perform an explicit domain parameter verification, which would require access to the "seed" and "counter" values used in their generation. The latter is not easily feasible and moreover, SP800-56Arev3 states that safe-prime groups are preferred and that FIPS 186-type parameter sets should only be supported for backward compatibility, if it all. Mark "dh" as not fips_allowed in testmgr. Note that the safe-prime ffdheXYZ(dh) wrappers are not affected by this change: as these enforce some approved safe-prime group each, their usage is still allowed in FIPS mode. This change will effectively render the keyctl(KEYCTL_DH_COMPUTE) syscall unusable in FIPS mode, but it has been brought up that this might even be a good thing ([1]). [1] https://lore.kernel.org/r/20211217055227.GA20698@gondor.apana.org.au Signed-off-by: Nicolai Stange <nstange@suse.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-03-03crypto: api - allow algs only in specific constructions in FIPS modeNicolai Stange
Currently we do not distinguish between algorithms that fail on the self-test vs. those which are disabled in FIPS mode (not allowed). Both are marked as having failed the self-test. Recently the need arose to allow the usage of certain algorithms only as arguments to specific template instantiations in FIPS mode. For example, standalone "dh" must be blocked, but e.g. "ffdhe2048(dh)" is allowed. Other potential use cases include "cbcmac(aes)", which must only be used with ccm(), or "ghash", which must be used only for gcm(). This patch allows this scenario by adding a new flag FIPS_INTERNAL to indicate those algorithms that are not FIPS-allowed. They can then be used as template arguments only, i.e. when looked up via crypto_grab_spawn() to be more specific. The FIPS_INTERNAL bit gets propagated upwards recursively into the surrounding template instances, until the construction eventually matches an explicit testmgr entry with ->fips_allowed being set, if any. The behaviour to skip !->fips_allowed self-test executions in FIPS mode will be retained. Note that this effectively means that FIPS_INTERNAL algorithms are handled very similarly to the INTERNAL ones in this regard. It is expected that the FIPS_INTERNAL algorithms will receive sufficient testing when the larger constructions they're a part of, if any, get exercised by testmgr. Note that as a side-effect of this patch algorithms which are not FIPS-allowed will now return ENOENT instead of ELIBBAD. Hopefully this is not an issue as some people were relying on this already. Link: https://lore.kernel.org/r/YeEVSaMEVJb3cQkq@gondor.apana.org.au Originally-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Nicolai Stange <nstange@suse.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-03-03crypto: testmgr - add known answer tests for ffdheXYZ(dh) templatesNicolai Stange
Add known answer tests for the ffdhe2048(dh), ffdhe3072(dh), ffdhe4096(dh), ffdhe6144(dh) and ffdhe8192(dh) templates introduced with the previous patch to the testmgr. All TVs have been generated with OpenSSL. Signed-off-by: Nicolai Stange <nstange@suse.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-02-11crypto: hmac - add fips_skip supportStephan Müller
By adding the support for the flag fips_skip, hash / HMAC test vectors may be marked to be not applicable in FIPS mode. Such vectors are silently skipped in FIPS mode. Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-01-31crypto: testmgr - Move crypto_simd_disabled_for_test outHerbert Xu
As testmgr is part of cryptomgr which was designed to be unloadable as a module, it shouldn't export any symbols for other crypto modules to use as that would prevent it from being unloaded. All its functionality is meant to be accessed through notifiers. The symbol crypto_simd_disabled_for_test was added to testmgr which caused it to be pinned as a module if its users were also loaded. This patch moves it out of testmgr and into crypto/algapi.c so cryptomgr can again be unloaded and replaced on demand. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Reviewed-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-11-26crypto: des - disallow des3 in FIPS modeStephan Müller
On Dec 31 2023 NIST sunsets TDES for FIPS use. To prevent FIPS validations to be completed in the future to be affected by the TDES sunsetting, disallow TDES already now. Otherwise a FIPS validation would need to be "touched again" end 2023 to handle TDES accordingly. Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-10-08crypto: testmgr - Only disable migration in crypto_disable_simd_for_test()Sebastian Andrzej Siewior
crypto_disable_simd_for_test() disables preemption in order to receive a stable per-CPU variable which it needs to modify in order to alter crypto_simd_usable() results. This can also be achived by migrate_disable() which forbidds CPU migrations but allows the task to be preempted. The latter is important for PREEMPT_RT since operation like skcipher_walk_first() may allocate memory which must not happen with disabled preemption on PREEMPT_RT. Use migrate_disable() in crypto_disable_simd_for_test() to achieve a stable per-CPU pointer. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-08-21crypto: testmgr - Add GCM/CCM mode test of SM4 algorithmTianjia Zhang
The GCM/CCM mode of the SM4 algorithm is defined in the rfc 8998 specification, and the test case data also comes from rfc 8998. Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-06-28crypto: drbg - self test for HMAC(SHA-512)Stephan Müller
Considering that the HMAC(SHA-512) DRBG is the default DRBG now, a self test is to be provided. The test vector is obtained from a successful NIST ACVP test run. Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-05-28crypto: ecdh - add test suite for NIST P384Hui Tang
Add test vector params for NIST P384, add test vector for NIST P384 on vector of tests. Vector param from: https://datatracker.ietf.org/doc/html/rfc5903#section-3.1 Signed-off-by: Hui Tang <tanghui20@huawei.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-05-28crypto: ecdh - fix ecdh-nist-p192's entry in testmgrHui Tang
Add a comment that p192 will fail to register in FIPS mode. Fix ecdh-nist-p192's entry in testmgr by removing the ifdefs and not setting fips_allowed. Signed-off-by: Hui Tang <tanghui20@huawei.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-03-26Merge branch 'ecc'Herbert Xu
This pulls in the NIST P384/256/192 x509 changes.
2021-03-26crypto: ecdsa - Register NIST P384 and extend test suiteSaulo Alessandre
Register NIST P384 as an akcipher and extend the testmgr with NIST P384-specific test vectors. Summary of changes: * crypto/ecdsa.c - add ecdsa_nist_p384_init_tfm - register and unregister P384 tfm * crypto/testmgr.c - add test vector for P384 on vector of tests * crypto/testmgr.h - add test vector params for P384(sha1, sha224, sha256, sha384 and sha512) Signed-off-by: Saulo Alessandre <saulo.alessandre@tse.jus.br> Tested-by: Stefan Berger <stefanb@linux.ibm.com> Acked-by: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-03-26crypto: ecdsa - Add support for ECDSA signature verificationStefan Berger
Add support for parsing the parameters of a NIST P256 or NIST P192 key. Enable signature verification using these keys. The new module is enabled with CONFIG_ECDSA: Elliptic Curve Digital Signature Algorithm (NIST P192, P256 etc.) is A NIST cryptographic standard algorithm. Only signature verification is implemented. Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: "David S. Miller" <davem@davemloft.net> Cc: linux-crypto@vger.kernel.org Signed-off-by: Stefan Berger <stefanb@linux.ibm.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-03-13crypto: ecdh - move curve_id of ECDH from the key to algorithm nameMeng Yu
1. crypto and crypto/atmel-ecc: Move curve id of ECDH from the key into the algorithm name instead in crypto and atmel-ecc, so ECDH algorithm name change form 'ecdh' to 'ecdh-nist-pxxx', and we cannot use 'curve_id' in 'struct ecdh'; 2. crypto/testmgr and net/bluetooth: Modify 'testmgr.c', 'testmgr.h' and 'net/bluetooth' to adapt the modification. Signed-off-by: Meng Yu <yumeng18@huawei.com> Reviewed-by: Zaibo Xu <xuzaibo@huawei.com> Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-03-07crypto: testmgr - delete some redundant codeKai Ye
Delete sg_data function, because sg_data function definition same as sg_virt(), so need to delete it and use sg_virt() replace to sg_data(). Signed-off-by: Kai Ye <yekai13@huawei.com> Reviewed-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-02-10crypto: serpent - get rid of obsolete tnepres variantArd Biesheuvel
It is not trivial to trace back why exactly the tnepres variant of serpent was added ~17 years ago - Google searches come up mostly empty, but it seems to be related with the 'kerneli' version, which was based on an incorrect interpretation of the serpent spec. In other words, nobody is likely to care anymore today, so let's get rid of it. Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-01-29crypto: salsa20 - remove Salsa20 stream cipher algorithmArd Biesheuvel
Salsa20 is not used anywhere in the kernel, is not suitable for disk encryption, and widely considered to have been superseded by ChaCha20. So let's remove it. Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Acked-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-01-29crypto: tgr192 - remove Tiger 128/160/192 hash algorithmsArd Biesheuvel
Tiger is never referenced anywhere in the kernel, and unlikely to be depended upon by userspace via AF_ALG. So let's remove it. Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-01-29crypto: rmd320 - remove RIPE-MD 320 hash algorithmArd Biesheuvel
RIPE-MD 320 is never referenced anywhere in the kernel, and unlikely to be depended upon by userspace via AF_ALG. So let's remove it Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-01-29crypto: rmd256 - remove RIPE-MD 256 hash algorithmArd Biesheuvel
RIPE-MD 256 is never referenced anywhere in the kernel, and unlikely to be depended upon by userspace via AF_ALG. So let's remove it Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-01-29crypto: rmd128 - remove RIPE-MD 128 hash algorithmArd Biesheuvel
RIPE-MD 128 is never referenced anywhere in the kernel, and unlikely to be depended upon by userspace via AF_ALG. So let's remove it. Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-01-03crypto: remove cipher routines from public crypto APIArd Biesheuvel
The cipher routines in the crypto API are mostly intended for templates implementing skcipher modes generically in software, and shouldn't be used outside of the crypto subsystem. So move the prototypes and all related definitions to a new header file under include/crypto/internal. Also, let's use the new module namespace feature to move the symbol exports into a new namespace CRYPTO_INTERNAL. Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Acked-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-11-06crypto: testmgr - WARN on test failureEric Biggers
Currently, by default crypto self-test failures only result in a pr_warn() message and an "unknown" status in /proc/crypto. Both of these are easy to miss. There is also an option to panic the kernel when a test fails, but that can't be the default behavior. A crypto self-test failure always indicates a kernel bug, however, and there's already a standard way to report (recoverable) kernel bugs -- the WARN() family of macros. WARNs are noisier and harder to miss, and existing test systems already know to look for them in dmesg or via /proc/sys/kernel/tainted. Therefore, call WARN() when an algorithm fails its self-tests. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-11-06crypto: testmgr - always print the actual skcipher driver nameEric Biggers
When alg_test() is called from tcrypt.ko rather than from the algorithm registration code, "driver" is actually the algorithm name, not the driver name. So it shouldn't be used in places where a driver name is wanted, e.g. when reporting a test failure or when checking whether the driver is the generic driver or not. Fix this for the skcipher algorithm tests by getting the driver name from the crypto_skcipher that actually got allocated. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-11-06crypto: testmgr - always print the actual AEAD driver nameEric Biggers
When alg_test() is called from tcrypt.ko rather than from the algorithm registration code, "driver" is actually the algorithm name, not the driver name. So it shouldn't be used in places where a driver name is wanted, e.g. when reporting a test failure or when checking whether the driver is the generic driver or not. Fix this for the AEAD algorithm tests by getting the driver name from the crypto_aead that actually got allocated. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-11-06crypto: testmgr - always print the actual hash driver nameEric Biggers
When alg_test() is called from tcrypt.ko rather than from the algorithm registration code, "driver" is actually the algorithm name, not the driver name. So it shouldn't be used in places where a driver name is wanted, e.g. when reporting a test failure or when checking whether the driver is the generic driver or not. Fix this for the hash algorithm tests by getting the driver name from the crypto_ahash or crypto_shash that actually got allocated. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-09-25crypto: sm2 - add SM2 test vectors to testmgrTianjia Zhang
Add testmgr test vectors for SM2 algorithm. These vectors come from `openssl pkeyutl -sign` and libgcrypt. Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com> Tested-by: Xufeng Zhang <yunbo.xufeng@linux.alibaba.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-09-25crypto: testmgr - Fix potential memory leak in test_akcipher_one()Tianjia Zhang
When the 'key' allocation fails, the 'req' will not be released, which will cause memory leakage on this path. This patch adds a 'free_req' tag used to solve this problem, and two new err values are added to reflect the real reason of the error. Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-09-25crypto: testmgr - support test with different ciphertext per encryptionTianjia Zhang
Some asymmetric algorithms will get different ciphertext after each encryption, such as SM2, and let testmgr support the testing of such algorithms. In struct akcipher_testvec, set c and c_size to be empty, skip the comparison of the ciphertext, and compare the decrypted plaintext with m to achieve the test purpose. Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com> Tested-by: Xufeng Zhang <yunbo.xufeng@linux.alibaba.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-08-20crypto: algapi - Remove skbuff.h inclusionHerbert Xu
The header file algapi.h includes skbuff.h unnecessarily since all we need is a forward declaration for struct sk_buff. This patch removes that inclusion. Unfortunately skbuff.h pulls in a lot of things and drivers over the years have come to rely on it so this patch adds a lot of missing inclusions that result from this. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-08-07mm, treewide: rename kzfree() to kfree_sensitive()Waiman Long
As said by Linus: A symmetric naming is only helpful if it implies symmetries in use. Otherwise it's actively misleading. In "kzalloc()", the z is meaningful and an important part of what the caller wants. In "kzfree()", the z is actively detrimental, because maybe in the future we really _might_ want to use that "memfill(0xdeadbeef)" or something. The "zero" part of the interface isn't even _relevant_. The main reason that kzfree() exists is to clear sensitive information that should not be leaked to other future users of the same memory objects. Rename kzfree() to kfree_sensitive() to follow the example of the recently added kvfree_sensitive() and make the intention of the API more explicit. In addition, memzero_explicit() is used to clear the memory to make sure that it won't get optimized away by the compiler. The renaming is done by using the command sequence: git grep -w --name-only kzfree |\ xargs sed -i 's/kzfree/kfree_sensitive/' followed by some editing of the kfree_sensitive() kerneldoc and adding a kzfree backward compatibility macro in slab.h. [akpm@linux-foundation.org: fs/crypto/inline_crypt.c needs linux/slab.h] [akpm@linux-foundation.org: fix fs/crypto/inline_crypt.c some more] Suggested-by: Joe Perches <joe@perches.com> Signed-off-by: Waiman Long <longman@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: David Howells <dhowells@redhat.com> Acked-by: Michal Hocko <mhocko@suse.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Cc: James Morris <jmorris@namei.org> Cc: "Serge E. Hallyn" <serge@hallyn.com> Cc: Joe Perches <joe@perches.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: David Rientjes <rientjes@google.com> Cc: Dan Carpenter <dan.carpenter@oracle.com> Cc: "Jason A . Donenfeld" <Jason@zx2c4.com> Link: http://lkml.kernel.org/r/20200616154311.12314-3-longman@redhat.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-01Merge branch 'linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto updates from Herbert Xu: "API: - Fix out-of-sync IVs in self-test for IPsec AEAD algorithms Algorithms: - Use formally verified implementation of x86/curve25519 Drivers: - Enhance hwrng support in caam - Use crypto_engine for skcipher/aead/rsa/hash in caam - Add Xilinx AES driver - Add uacce driver - Register zip engine to uacce in hisilicon - Add support for OCTEON TX CPT engine in marvell" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (162 commits) crypto: af_alg - bool type cosmetics crypto: arm[64]/poly1305 - add artifact to .gitignore files crypto: caam - limit single JD RNG output to maximum of 16 bytes crypto: caam - enable prediction resistance in HRWNG bus: fsl-mc: add api to retrieve mc version crypto: caam - invalidate entropy register during RNG initialization crypto: caam - check if RNG job failed crypto: caam - simplify RNG implementation crypto: caam - drop global context pointer and init_done crypto: caam - use struct hwrng's .init for initialization crypto: caam - allocate RNG instantiation descriptor with GFP_DMA crypto: ccree - remove duplicated include from cc_aead.c crypto: chelsio - remove set but not used variable 'adap' crypto: marvell - enable OcteonTX cpt options for build crypto: marvell - add the Virtual Function driver for CPT crypto: marvell - add support for OCTEON TX CPT engine crypto: marvell - create common Kconfig and Makefile for Marvell crypto: arm/neon - memzero_explicit aes-cbc key crypto: bcm - Use scnprintf() for avoiding potential buffer overflow crypto: atmel-i2c - Fix wakeup fail ...
2020-03-12crypto: testmgr - do comparison tests before inauthentic input testsEric Biggers
Do test_aead_vs_generic_impl() before test_aead_inauthentic_inputs() so that any differences with the generic driver are detected before getting to the inauthentic input tests, which intentionally use only the driver being tested (so that they run even if a generic driver is unavailable). Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-03-12crypto: testmgr - use consistent IV copies for AEADs that need itEric Biggers
rfc4543 was missing from the list of algorithms that may treat the end of the AAD buffer specially. Also, with rfc4106, rfc4309, rfc4543, and rfc7539esp, the end of the AAD buffer is actually supposed to contain a second copy of the IV, and we've concluded that if the IV copies don't match the behavior is implementation-defined. So, the fuzz tests can't easily test that case. So, make the fuzz tests only use inputs where the two IV copies match. Reported-by: Geert Uytterhoeven <geert+renesas@glider.be> Fixes: 40153b10d91c ("crypto: testmgr - fuzz AEADs against their generic implementation") Cc: Stephan Mueller <smueller@chronox.de> Originally-from: Gilad Ben-Yossef <gilad@benyossef.com> Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-02-13crypto/testmgr: enable selftests for paes-s390 ciphersHarald Freudenberger
This patch enables the selftests for the s390 specific protected key AES (PAES) cipher implementations: * cbc-paes-s390 * ctr-paes-s390 * ecb-paes-s390 * xts-paes-s390 PAES is an AES cipher but with encrypted ('protected') key material. However, the paes ciphers are able to derive an protected key from clear key material with the help of the pkey kernel module. So this patch now enables the generic AES tests for the paes ciphers. Under the hood the setkey() functions rearrange the clear key values as clear key token and so the pkey kernel module is able to provide protected key blobs from the given clear key values. The derived protected key blobs are then used within the paes cipers and should produce the very same results as the generic AES implementation with the clear key values. The s390-paes cipher testlist entries are surrounded by #if IS_ENABLED(CONFIG_CRYPTO_PAES_S390) because they don't make any sense on non s390 platforms or without the PAES cipher implementation. Link: http://lkml.kernel.org/r/20200213083946.zicarnnt3wizl5ty@gondor.apana.org.au Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2019-12-11crypto: testmgr - generate inauthentic AEAD test vectorsEric Biggers
The whole point of using an AEAD over length-preserving encryption is that the data is authenticated. However currently the fuzz tests don't test any inauthentic inputs to verify that the data is actually being authenticated. And only two algorithms ("rfc4543(gcm(aes))" and "ccm(aes)") even have any inauthentic test vectors at all. Therefore, update the AEAD fuzz tests to sometimes generate inauthentic test vectors, either by generating a (ciphertext, AAD) pair without using the key, or by mutating an authentic pair that was generated. To avoid flakiness, only assume this works reliably if the auth tag is at least 8 bytes. Also account for the rfc4106, rfc4309, and rfc7539esp algorithms intentionally ignoring the last 8 AAD bytes, and for some algorithms doing extra checks that result in EINVAL rather than EBADMSG. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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