From 13c42a00f6c56e54cbfff399ea61256d94c7ed8b Mon Sep 17 00:00:00 2001 From: Steffen Jaeckel Date: Fri, 23 Nov 2012 03:03:19 +0100 Subject: [PATCH] hkdf: fix compiler warning --- src/misc/hkdf/hkdf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/misc/hkdf/hkdf.c b/src/misc/hkdf/hkdf.c index b067663..ee65c61 100644 --- a/src/misc/hkdf/hkdf.c +++ b/src/misc/hkdf/hkdf.c @@ -22,7 +22,7 @@ int hkdf_extract(int hash_idx, const unsigned char *salt, unsigned long saltlen sense), we can use a single 0 byte as the HMAC key and still generate valid results for HKDF. */ if (salt == NULL || saltlen == 0) { - return hmac_memory(hash_idx, "", 1, in, inlen, out, outlen); + return hmac_memory(hash_idx, (const unsigned char *)"", 1, in, inlen, out, outlen); } else { return hmac_memory(hash_idx, salt, saltlen, in, inlen, out, outlen); }