diff options
Diffstat (limited to 'providers')
| -rw-r--r-- | providers/implementations/digests/sha3_prov.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/providers/implementations/digests/sha3_prov.c b/providers/implementations/digests/sha3_prov.c index 33dc6660bf..825d3249fa 100644 --- a/providers/implementations/digests/sha3_prov.c +++ b/providers/implementations/digests/sha3_prov.c @@ -183,7 +183,6 @@ static int s390x_keccakc_final(unsigned char *md, void *vctx, int padding) size_t bsz = ctx->block_size; size_t num = ctx->bufsz; size_t needed = ctx->md_size; - static const unsigned char empty[KECCAK1600_WIDTH / 8] = {0}; if (!ossl_prov_is_running()) return 0; @@ -193,13 +192,11 @@ static int s390x_keccakc_final(unsigned char *md, void *vctx, int padding) ctx->buf[num] = padding; ctx->buf[bsz - 1] |= 0x80; s390x_kimd(ctx->buf, bsz, ctx->pad, ctx->A); - while (needed > bsz) { - memcpy(md, ctx->A, bsz); - needed -= bsz; - md += bsz; - s390x_kimd(empty, bsz, ctx->pad, ctx->A); - } - memcpy(md, ctx->A, needed); + num = needed > bsz ? bsz : needed; + memcpy(md, ctx->A, num); + needed -= num; + if (needed > 0) + s390x_klmd(NULL, 0, md + bsz, needed, ctx->pad | S390X_KLMD_PS, ctx->A); return 1; } |