On Saturday, February 20, 2016 at 9:52:11 PM UTC-5, John Lester Romano
wrote:
>
> Hi, I've been spending quite a while on how to resolve this issue. But
> can't seem to find a way with this. I have used this sample program.
> https://www.cryptopp.com/wiki/CMAC
> But I am having errors. Please see screenshot....
>
> ... I have tried to do it in a separate workstation. Recompile the
> library. Then I'm having the same problem.
>
The assert basically says, "provide a valid pointer and a valid size" or
"provide a NULL pointer and 0 size".
I'm guessing a filter is doing something like calling update with a NULL
pointer and non-0 size; or a non-NULL pointer with a 0 size. Neither really
makes any sense.
This should fix it. It tested OK under both the test suite and test vectors.
$ git diff filters.cpp
diff --git a/filters.cpp b/filters.cpp
index 6b09a02..78fd635 100644
--- a/filters.cpp
+++ b/filters.cpp
@@ -780,7 +780,8 @@ size_t HashFilter::Put2(const byte *inString, size_t
length, int messageEnd, boo
FILTER_BEGIN;
if (m_putMessage)
FILTER_OUTPUT3(1, 0, inString, length, 0,
m_messagePutChannel);
- m_hashModule.Update(inString, length);
+ if (inString && length)
+ m_hashModule.Update(inString, length);^M
if (messageEnd)
{
{
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