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authorHolger Dengler <dengler@linux.ibm.com>2023-09-27 21:54:34 +0200
committerHolger Dengler <dengler@linux.ibm.com>2023-11-10 14:25:44 +0100
commit1337b50936ed190a98af1ee6601d857b42a3d296 (patch)
tree9024346109ec0f345fb2a19b3b2ad76a405ac818 /providers
parentbff62480333680463c82e88fdc67ed5ec14a0017 (diff)
Add xof state handing for generic sha3 absorb.
The digest life-cycle diagram specifies state transitions to `updated` (aka XOF_STATE_ABSORB) only from `initialised` and `updated`. Add this checking to the generic sha3 absorb implementation. Signed-off-by: Holger Dengler <dengler@linux.ibm.com> Reviewed-by: Shane Lontis <shane.lontis@oracle.com> Reviewed-by: Todd Short <todd.short@me.com> Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/22221)
Diffstat (limited to 'providers')
-rw-r--r--providers/implementations/digests/sha3_prov.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/providers/implementations/digests/sha3_prov.c b/providers/implementations/digests/sha3_prov.c
index 19576c7190..13735153f2 100644
--- a/providers/implementations/digests/sha3_prov.c
+++ b/providers/implementations/digests/sha3_prov.c
@@ -143,6 +143,10 @@ static size_t generic_sha3_absorb(void *vctx, const void *inp, size_t len)
{
KECCAK1600_CTX *ctx = vctx;
+ if (!(ctx->xof_state == XOF_STATE_INIT ||
+ ctx->xof_state == XOF_STATE_ABSORB))
+ return 0;
+ ctx->xof_state = XOF_STATE_ABSORB;
return SHA3_absorb(ctx->A, inp, len, ctx->block_size);
}