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crypto: s390/sha512 - Initialise upper counter to zero for sha384

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Initialise the high bit counter to zero in sha384_init.

Also change the state initialisation to use ctx->sha512.state
instead of ctx->state for consistency.

Fixes: 572b5c4682 ("crypto: s390/sha512 - Use API partial block handling")
Reported-by: Ingo Franzki <ifranzki@linux.ibm.com>
Reported-by: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu
2025-05-05 20:54:41 +08:00
parent 870c1f0dc2
commit 64745a9ca8
1 changed files with 9 additions and 8 deletions
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17
arch/s390/crypto/sha512_s390.c
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@@ -86,15 +86,16 @@ static int sha384_init(struct shash_desc *desc)
{
struct s390_sha_ctx *ctx = shash_desc_ctx(desc);
*(__u64 *)&ctx->state[0] = SHA384_H0;
*(__u64 *)&ctx->state[2] = SHA384_H1;
*(__u64 *)&ctx->state[4] = SHA384_H2;
*(__u64 *)&ctx->state[6] = SHA384_H3;
*(__u64 *)&ctx->state[8] = SHA384_H4;
*(__u64 *)&ctx->state[10] = SHA384_H5;
*(__u64 *)&ctx->state[12] = SHA384_H6;
*(__u64 *)&ctx->state[14] = SHA384_H7;
ctx->sha512.state[0] = SHA384_H0;
ctx->sha512.state[1] = SHA384_H1;
ctx->sha512.state[2] = SHA384_H2;
ctx->sha512.state[3] = SHA384_H3;
ctx->sha512.state[4] = SHA384_H4;
ctx->sha512.state[5] = SHA384_H5;
ctx->sha512.state[6] = SHA384_H6;
ctx->sha512.state[7] = SHA384_H7;
ctx->count = 0;
ctx->sha512.count_hi = 0;
ctx->func = CPACF_KIMD_SHA_512;
return 0;