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authorJung-uk Kim <jkim@FreeBSD.org>2018-11-20 18:59:41 +0000
committerJung-uk Kim <jkim@FreeBSD.org>2018-11-20 18:59:41 +0000
commit8c3f9abd70b3f447a4795c1b00b386b044fb322d (patch)
tree884976f2693f42bade35b92edc3c1f7f8c53825b /crypto/siphash
parenta43ce912fc025d11e1395506111f75fc194d7ba5 (diff)
downloadsrc-8c3f9abd70b3f447a4795c1b00b386b044fb322d.tar.gz
src-8c3f9abd70b3f447a4795c1b00b386b044fb322d.zip
Import OpenSSL 1.1.1a.vendor/openssl/1.1.1a
Notes
Notes: svn path=/vendor-crypto/openssl/dist/; revision=340690 svn path=/vendor-crypto/openssl/1.1.1a/; revision=340691; tag=vendor/openssl/1.1.1a
Diffstat (limited to 'crypto/siphash')
-rw-r--r--crypto/siphash/siphash.c14
1 files changed, 13 insertions, 1 deletions
diff --git a/crypto/siphash/siphash.c b/crypto/siphash/siphash.c
index ff84a29f8215..be74a38d934d 100644
--- a/crypto/siphash/siphash.c
+++ b/crypto/siphash/siphash.c
@@ -94,7 +94,19 @@ int SipHash_set_hash_size(SIPHASH *ctx, size_t hash_size)
&& hash_size != SIPHASH_MAX_DIGEST_SIZE)
return 0;
- ctx->hash_size = hash_size;
+ /*
+ * It's possible that the key was set first. If the hash size changes,
+ * we need to adjust v1 (see SipHash_Init().
+ */
+
+ /* Start by adjusting the stored size, to make things easier */
+ ctx->hash_size = siphash_adjust_hash_size(ctx->hash_size);
+
+ /* Now, adjust ctx->v1 if the old and the new size differ */
+ if ((size_t)ctx->hash_size != hash_size) {
+ ctx->v1 ^= 0xee;
+ ctx->hash_size = hash_size;
+ }
return 1;
}