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To help avoid confusion, add a comment to ghash-generic.c which explains the convention that the kernel's implementation of GHASH uses. Also update the Kconfig help text and module descriptions to call GHASH a "hash function" rather than a "message digest", since the latter normally means a real cryptographic hash function, which GHASH is not. Cc: Pascal Van Leeuwen <pvanleeuwen@verimatrix.com> Signed-off-by: Eric Biggers <ebiggers@google.com> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Acked-by: Pascal Van Leeuwen <pvanleeuwen@verimatrix.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
24 lines
388 B
C
24 lines
388 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Common values for the GHASH hash function
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*/
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#ifndef __CRYPTO_GHASH_H__
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#define __CRYPTO_GHASH_H__
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#include <linux/types.h>
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#include <crypto/gf128mul.h>
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#define GHASH_BLOCK_SIZE 16
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#define GHASH_DIGEST_SIZE 16
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struct ghash_ctx {
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struct gf128mul_4k *gf128;
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};
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struct ghash_desc_ctx {
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u8 buffer[GHASH_BLOCK_SIZE];
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u32 bytes;
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};
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#endif
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