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crypto: x86/xts - implement support for ciphertext stealing

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Align the x86 code with the generic XTS template, which now supports
ciphertext stealing as described by the IEEE XTS-AES spec P1619.

Tested-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Ard Biesheuvel
2019-08-16 15:21:50 +03:00
committed by Herbert Xu
parent b395ed4f94
commit 8ce5fac2dc
9 changed files with 81 additions and 18 deletions
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4
arch/x86/crypto/serpent_avx_glue.c
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@@ -207,7 +207,7 @@ static int xts_encrypt(struct skcipher_request *req)
return glue_xts_req_128bit(&serpent_enc_xts, req,
XTS_TWEAK_CAST(__serpent_encrypt),
&ctx->tweak_ctx, &ctx->crypt_ctx);
&ctx->tweak_ctx, &ctx->crypt_ctx, false);
}
static int xts_decrypt(struct skcipher_request *req)
@@ -217,7 +217,7 @@ static int xts_decrypt(struct skcipher_request *req)
return glue_xts_req_128bit(&serpent_dec_xts, req,
XTS_TWEAK_CAST(__serpent_encrypt),
&ctx->tweak_ctx, &ctx->crypt_ctx);
&ctx->tweak_ctx, &ctx->crypt_ctx, true);
}
static struct skcipher_alg serpent_algs[] = {