From f3c923a09c4c4f5861b1ed53cf75673992a6ba68 Mon Sep 17 00:00:00 2001 From: Nathan Huckleberry Date: Fri, 20 May 2022 18:14:54 +0000 Subject: crypto: polyval - Add POLYVAL support MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Reviewed-by: Eric Biggers Reviewed-by: Ard Biesheuvel Signed-off-by: Herbert Xu --- crypto/testmgr.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'crypto/testmgr.c') diff --git a/crypto/testmgr.c b/crypto/testmgr.c index 0ea77dcdc6c0..0f40e260b5a9 100644 --- a/crypto/testmgr.c +++ b/crypto/testmgr.c @@ -5342,6 +5342,12 @@ static const struct alg_test_desc alg_test_descs[] = { .suite = { .hash = __VECS(poly1305_tv_template) } + }, { + .alg = "polyval", + .test = alg_test_hash, + .suite = { + .hash = __VECS(polyval_tv_template) + } }, { .alg = "rfc3686(ctr(aes))", .test = alg_test_skcipher, -- cgit v1.2.3