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-rw-r--r--crypto/hmac/hmac.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/crypto/hmac/hmac.c b/crypto/hmac/hmac.c
index b1aa05b2ea..16d95e08d5 100644
--- a/crypto/hmac/hmac.c
+++ b/crypto/hmac/hmac.c
@@ -89,7 +89,7 @@ void HMAC_Init_ex(HMAC_CTX *ctx, const void *key, int len,
}
else
{
- OPENSSL_assert(len>0 && len <= (int)sizeof(ctx->key));
+ OPENSSL_assert(len>=0 && len<=(int)sizeof(ctx->key));
memcpy(ctx->key,key,len);
ctx->key_length=len;
}