From 3f6b6f0b8cbd7173b6c007b07caa6ec34cda08c5 Mon Sep 17 00:00:00 2001 From: "Dr. Stephen Henson" Date: Thu, 1 Aug 2013 15:48:44 +0100 Subject: [PATCH] Minor optimisation to KDF algorithm. Don't need to use temporary buffer if remaining length equals digest length. --- crypto/ecdh/ech_kdf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/crypto/ecdh/ech_kdf.c b/crypto/ecdh/ech_kdf.c index 84bf108b90..848b91745f 100644 --- a/crypto/ecdh/ech_kdf.c +++ b/crypto/ecdh/ech_kdf.c @@ -90,7 +90,7 @@ int ECDH_KDF_X9_62(unsigned char *out, size_t outlen, goto err; if (!EVP_DigestUpdate(&mctx, sinfo, sinfolen)) goto err; - if (outlen > mdlen) + if (outlen >= mdlen) { if (!EVP_DigestFinal(&mctx, out, NULL)) goto err; -- 2.25.1