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| author | Nathan Huckleberry <nhuck@google.com> | 2022-05-20 21:14:53 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2022-06-10 11:40:16 +0300 |
| commit | 17fee07a2ac577da18b44dd658a9c3c864281c49 (patch) | |
| tree | 235a3d7c336a995f3f3be558aed5385c4d534de6 /crypto/testmgr.c | |
| parent | 7df7563b16aa0281cb811785e4bb3681b46e2a28 (diff) | |
| download | linux-17fee07a2ac577da18b44dd658a9c3c864281c49.tar.xz | |
crypto: xctr - Add XCTR support
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>
Diffstat (limited to 'crypto/testmgr.c')
| -rw-r--r-- | crypto/testmgr.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/crypto/testmgr.c b/crypto/testmgr.c index 5801a8f9f713..0ea77dcdc6c0 100644 --- a/crypto/testmgr.c +++ b/crypto/testmgr.c @@ -5549,6 +5549,12 @@ static const struct alg_test_desc alg_test_descs[] = { .cipher = __VECS(xchacha20_tv_template) }, }, { + .alg = "xctr(aes)", + .test = alg_test_skcipher, + .suite = { + .cipher = __VECS(aes_xctr_tv_template) + } + }, { .alg = "xts(aes)", .generic_driver = "xts(ecb(aes-generic))", .test = alg_test_skcipher, |