2019-11-08 07:22:07 -05:00
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# SPDX-License-Identifier: GPL-2.0
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2022-01-12 09:01:38 -05:00
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menu "Crypto library routines"
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2022-07-25 14:36:34 -04:00
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config CRYPTO_LIB_UTILS
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tristate
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2019-11-08 07:22:07 -05:00
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config CRYPTO_LIB_AES
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tristate
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crypto: lib/aesgcm - Provide minimal library implementation
Implement a minimal library version of AES-GCM based on the existing
library implementations of AES and multiplication in GF(2^128). Using
these primitives, GCM can be implemented in a straight-forward manner.
GCM has a couple of sharp edges, i.e., the amount of input data
processed with the same initialization vector (IV) should be capped to
protect the counter from 32-bit rollover (or carry), and the size of the
authentication tag should be fixed for a given key. [0]
The former concern is addressed trivially, given that the function call
API uses 32-bit signed types for the input lengths. It is still up to
the caller to avoid IV reuse in general, but this is not something we
can police at the implementation level.
As for the latter concern, let's make the authentication tag size part
of the key schedule, and only permit it to be configured as part of the
key expansion routine.
Note that table based AES implementations are susceptible to known
plaintext timing attacks on the encryption key. The AES library already
attempts to mitigate this to some extent, but given that the counter
mode encryption used by GCM operates exclusively on known plaintext by
construction (the IV and therefore the initial counter value are known
to an attacker), let's take some extra care to mitigate this, by calling
the AES library with interrupts disabled.
[0] https://nvlpubs.nist.gov/nistpubs/legacy/sp/nistspecialpublication800-38d.pdf
Link: https://lore.kernel.org/all/c6fb9b25-a4b6-2e4a-2dd1-63adda055a49@amd.com/
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Tested-by: Nikunj A Dadhania <nikunj@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-11-03 15:22:59 -04:00
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config CRYPTO_LIB_AESGCM
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tristate
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select CRYPTO_LIB_AES
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select CRYPTO_LIB_GF128MUL
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select CRYPTO_LIB_UTILS
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2019-11-08 07:22:07 -05:00
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config CRYPTO_LIB_ARC4
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tristate
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2022-11-03 15:22:57 -04:00
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config CRYPTO_LIB_GF128MUL
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tristate
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2019-11-08 07:22:07 -05:00
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2019-11-08 07:22:28 -05:00
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config CRYPTO_ARCH_HAVE_LIB_BLAKE2S
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2021-12-22 08:56:58 -05:00
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bool
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2019-11-08 07:22:28 -05:00
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help
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Declares whether the architecture provides an arch-specific
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accelerated implementation of the Blake2s library interface,
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either builtin or as a module.
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config CRYPTO_LIB_BLAKE2S_GENERIC
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2021-12-22 08:56:58 -05:00
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def_bool !CRYPTO_ARCH_HAVE_LIB_BLAKE2S
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2019-11-08 07:22:28 -05:00
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help
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This symbol can be depended upon by arch implementations of the
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Blake2s library interface that require the generic code as a
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fallback, e.g., for SIMD implementations. If no arch specific
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implementation is enabled, this implementation serves the users
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of CRYPTO_LIB_BLAKE2S.
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2019-11-08 07:22:08 -05:00
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config CRYPTO_ARCH_HAVE_LIB_CHACHA
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tristate
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help
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Declares whether the architecture provides an arch-specific
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accelerated implementation of the ChaCha library interface,
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either builtin or as a module.
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config CRYPTO_LIB_CHACHA_GENERIC
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tristate
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2022-07-25 14:36:35 -04:00
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select CRYPTO_LIB_UTILS
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2019-11-08 07:22:08 -05:00
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help
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This symbol can be depended upon by arch implementations of the
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ChaCha library interface that require the generic code as a
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fallback, e.g., for SIMD implementations. If no arch specific
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implementation is enabled, this implementation serves the users
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of CRYPTO_LIB_CHACHA.
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config CRYPTO_LIB_CHACHA
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2022-01-12 09:01:38 -05:00
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tristate "ChaCha library interface"
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2019-11-08 07:22:08 -05:00
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depends on CRYPTO_ARCH_HAVE_LIB_CHACHA || !CRYPTO_ARCH_HAVE_LIB_CHACHA
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select CRYPTO_LIB_CHACHA_GENERIC if CRYPTO_ARCH_HAVE_LIB_CHACHA=n
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help
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Enable the ChaCha library interface. This interface may be fulfilled
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by either the generic implementation or an arch-specific one, if one
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is available and enabled.
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2019-11-08 07:22:32 -05:00
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config CRYPTO_ARCH_HAVE_LIB_CURVE25519
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tristate
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help
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Declares whether the architecture provides an arch-specific
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accelerated implementation of the Curve25519 library interface,
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either builtin or as a module.
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config CRYPTO_LIB_CURVE25519_GENERIC
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tristate
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help
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This symbol can be depended upon by arch implementations of the
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Curve25519 library interface that require the generic code as a
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fallback, e.g., for SIMD implementations. If no arch specific
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implementation is enabled, this implementation serves the users
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of CRYPTO_LIB_CURVE25519.
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config CRYPTO_LIB_CURVE25519
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2022-01-12 09:01:38 -05:00
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tristate "Curve25519 scalar multiplication library"
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2019-11-08 07:22:32 -05:00
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depends on CRYPTO_ARCH_HAVE_LIB_CURVE25519 || !CRYPTO_ARCH_HAVE_LIB_CURVE25519
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select CRYPTO_LIB_CURVE25519_GENERIC if CRYPTO_ARCH_HAVE_LIB_CURVE25519=n
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2022-07-25 14:36:34 -04:00
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select CRYPTO_LIB_UTILS
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2019-11-08 07:22:32 -05:00
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help
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Enable the Curve25519 library interface. This interface may be
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fulfilled by either the generic implementation or an arch-specific
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one, if one is available and enabled.
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2019-11-08 07:22:07 -05:00
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config CRYPTO_LIB_DES
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tristate
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2019-11-08 07:22:21 -05:00
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config CRYPTO_LIB_POLY1305_RSIZE
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int
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2019-11-08 07:22:26 -05:00
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default 2 if MIPS
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crypto: x86/poly1305 - wire up faster implementations for kernel
These x86_64 vectorized implementations support AVX, AVX-2, and AVX512F.
The AVX-512F implementation is disabled on Skylake, due to throttling,
but it is quite fast on >= Cannonlake.
On the left is cycle counts on a Core i7 6700HQ using the AVX-2
codepath, comparing this implementation ("new") to the implementation in
the current crypto api ("old"). On the right are benchmarks on a Xeon
Gold 5120 using the AVX-512 codepath. The new implementation is faster
on all benchmarks.
AVX-2 AVX-512
--------- -----------
size old new size old new
---- ---- ---- ---- ---- ----
0 70 68 0 74 70
16 92 90 16 96 92
32 134 104 32 136 106
48 172 120 48 184 124
64 218 136 64 218 138
80 254 158 80 260 160
96 298 174 96 300 176
112 342 192 112 342 194
128 388 212 128 384 212
144 428 228 144 420 226
160 466 246 160 464 248
176 510 264 176 504 264
192 550 282 192 544 282
208 594 302 208 582 300
224 628 316 224 624 318
240 676 334 240 662 338
256 716 354 256 708 358
272 764 374 272 748 372
288 802 352 288 788 358
304 420 366 304 422 370
320 428 360 320 432 364
336 484 378 336 486 380
352 426 384 352 434 390
368 478 400 368 480 408
384 488 394 384 490 398
400 542 408 400 542 412
416 486 416 416 492 426
432 534 430 432 538 436
448 544 422 448 546 432
464 600 438 464 600 448
480 540 448 480 548 456
496 594 464 496 594 476
512 602 456 512 606 470
528 656 476 528 656 480
544 600 480 544 606 498
560 650 494 560 652 512
576 664 490 576 662 508
592 714 508 592 716 522
608 656 514 608 664 538
624 708 532 624 710 552
640 716 524 640 720 516
656 770 536 656 772 526
672 716 548 672 722 544
688 770 562 688 768 556
704 774 552 704 778 556
720 826 568 720 832 568
736 768 574 736 780 584
752 822 592 752 826 600
768 830 584 768 836 560
784 884 602 784 888 572
800 828 610 800 838 588
816 884 628 816 884 604
832 888 618 832 894 598
848 942 632 848 946 612
864 884 644 864 896 628
880 936 660 880 942 644
896 948 652 896 952 608
912 1000 664 912 1004 616
928 942 676 928 954 634
944 994 690 944 1000 646
960 1002 680 960 1008 646
976 1054 694 976 1062 658
992 1002 706 992 1012 674
1008 1052 720 1008 1058 690
This commit wires in the prior implementation from Andy, and makes the
following changes to be suitable for kernel land.
- Some cosmetic and structural changes, like renaming labels to
.Lname, constants, and other Linux conventions, as well as making
the code easy for us to maintain moving forward.
- CPU feature checking is done in C by the glue code.
- We avoid jumping into the middle of functions, to appease objtool,
and instead parameterize shared code.
- We maintain frame pointers so that stack traces make sense.
- We remove the dependency on the perl xlate code, which transforms
the output into things that assemblers we don't care about use.
Importantly, none of our changes affect the arithmetic or core code, but
just involve the differing environment of kernel space.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Samuel Neves <sneves@dei.uc.pt>
Co-developed-by: Samuel Neves <sneves@dei.uc.pt>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-01-05 22:40:48 -05:00
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default 11 if X86_64
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2019-11-08 07:22:25 -05:00
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default 9 if ARM || ARM64
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2019-11-08 07:22:21 -05:00
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default 1
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config CRYPTO_ARCH_HAVE_LIB_POLY1305
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tristate
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help
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Declares whether the architecture provides an arch-specific
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accelerated implementation of the Poly1305 library interface,
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either builtin or as a module.
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2019-11-08 07:22:19 -05:00
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config CRYPTO_LIB_POLY1305_GENERIC
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tristate
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2019-11-08 07:22:21 -05:00
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help
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This symbol can be depended upon by arch implementations of the
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Poly1305 library interface that require the generic code as a
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fallback, e.g., for SIMD implementations. If no arch specific
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implementation is enabled, this implementation serves the users
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of CRYPTO_LIB_POLY1305.
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config CRYPTO_LIB_POLY1305
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2022-01-12 09:01:38 -05:00
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tristate "Poly1305 library interface"
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2019-11-08 07:22:21 -05:00
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depends on CRYPTO_ARCH_HAVE_LIB_POLY1305 || !CRYPTO_ARCH_HAVE_LIB_POLY1305
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select CRYPTO_LIB_POLY1305_GENERIC if CRYPTO_ARCH_HAVE_LIB_POLY1305=n
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help
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Enable the Poly1305 library interface. This interface may be fulfilled
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by either the generic implementation or an arch-specific one, if one
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is available and enabled.
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2019-11-08 07:22:19 -05:00
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2019-11-08 07:22:39 -05:00
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config CRYPTO_LIB_CHACHA20POLY1305
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2022-01-12 09:01:38 -05:00
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tristate "ChaCha20-Poly1305 AEAD support (8-byte nonce library version)"
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2019-11-08 07:22:39 -05:00
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depends on CRYPTO_ARCH_HAVE_LIB_CHACHA || !CRYPTO_ARCH_HAVE_LIB_CHACHA
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depends on CRYPTO_ARCH_HAVE_LIB_POLY1305 || !CRYPTO_ARCH_HAVE_LIB_POLY1305
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2022-01-12 09:01:38 -05:00
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depends on CRYPTO
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2019-11-08 07:22:39 -05:00
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select CRYPTO_LIB_CHACHA
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select CRYPTO_LIB_POLY1305
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2022-01-12 09:01:38 -05:00
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select CRYPTO_ALGAPI
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2019-11-08 07:22:39 -05:00
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2022-07-09 17:18:49 -04:00
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config CRYPTO_LIB_SHA1
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tristate
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2019-11-08 07:22:07 -05:00
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config CRYPTO_LIB_SHA256
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tristate
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crypto: sm4 - create SM4 library based on sm4 generic code
Take the existing small footprint and mostly time invariant C code
and turn it into a SM4 library that can be used for non-performance
critical, casual use of SM4, and as a fallback for, e.g., SIMD code
that needs a secondary path that can be taken in contexts where the
SIMD unit is off limits.
Secondly, some codes have been optimized, such as unrolling small
times loop, removing unnecessary memory shifts, exporting sbox, fk,
ck arrays, and basic encryption and decryption functions.
Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-07-19 23:46:39 -04:00
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2022-01-12 09:01:38 -05:00
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endmenu
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