- Fixed off-by-one loop

2012-11-09 15:30:07 +00:00 · 2012-11-09 15:30:07 +00:00 · 36c4a678a6
commit 36c4a678a6
parent c893e0257f
1 changed files with 1 additions and 1 deletions
--- a/library/ctr_drbg.c
+++ b/library/ctr_drbg.c
@ -194,7 +194,7 @@ int ctr_drbg_update_internal( ctr_drbg_context *ctx,
        /*
         * Increase counter
         */
-        for( i = CTR_DRBG_BLOCKSIZE; i >= 0; i-- )
+        for( i = CTR_DRBG_BLOCKSIZE; i > 0; i-- )
            if( ++ctx->counter[i - 1] != 0 )
                break;