diff options
| author | Matt Caswell <matt@openssl.org> | 2020-08-31 14:44:17 +0100 |
|---|---|---|
| committer | Matt Caswell <matt@openssl.org> | 2020-09-03 09:40:52 +0100 |
| commit | 0bc193dd05fa0f5580706f34994beb74baf3d531 (patch) | |
| tree | 170c605323a9388c1a45dd2cb81896155cf89282 /providers/implementations/macs/siphash_prov.c | |
| parent | 13c9843cff061304275a1723bcba137280e2e97d (diff) | |
Ensure EVP_MAC_update() passes the length even if it is 0
We leave it up to the EVP_MAC implemenations what to do with an update
where the data length is 0. In the TLS HMAC implemenation this is still
signficant.
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/12732)
Diffstat (limited to 'providers/implementations/macs/siphash_prov.c')
| -rw-r--r-- | providers/implementations/macs/siphash_prov.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/providers/implementations/macs/siphash_prov.c b/providers/implementations/macs/siphash_prov.c index 8797241e33..1bea7a2787 100644 --- a/providers/implementations/macs/siphash_prov.c +++ b/providers/implementations/macs/siphash_prov.c @@ -91,6 +91,9 @@ static int siphash_update(void *vmacctx, const unsigned char *data, { struct siphash_data_st *ctx = vmacctx; + if (datalen == 0) + return 1; + SipHash_Update(&ctx->siphash, data, datalen); return 1; } |