let loop variable be size_t as we're comparing with size_t

diff --git a/ykpbkdf2.c b/ykpbkdf2.c
index e64d582fd0c66acd6a3b0507bf3ee400c7dbbef4..1b0ce0c79a864d63b8f1d30721efe003e9363921 100644 (file)
--- a/ykpbkdf2.c
+++ b/ykpbkdf2.c
@@ -68,7 +68,7 @@ int yk_pbkdf2(const char *passphrase,
                unsigned char block[256]; /* A big chunk, that's 2048 bits */
                size_t block_len;
                unsigned int iteration;
-               int i;
+               size_t i;
 
                memcpy(block, salt, salt_len);
                block[salt_len + 0] = (block_count & 0xff000000) >> 24;