Hi Martin,

If I want to use HMAC in one of my application, then what are the
libraries, I have to take? Or, simply what are the files, that I have
to include in my program ?
In your code snippet, what is macLen? Is it the length in bits for
SHA1 hash digest, i.e. 160bits?

Thanks for your kind help...

Best Regards
Tilak


On Dec 7, 2007 1:08 PM, Martin Peylo <[EMAIL PROTECTED]> wrote:
> Hi,
>
> size_t keyLen, msgLen, macLen;
> unsigned char *key;
> const unsigned char* msg;
> unsigned char *mac
> [... init ...]
> HMAC(EVP_sha1(), key, keyLen, msg, msgLen, mac, &macLen);
>
> should do it.
>
> Best regards,
> Martin
>
>
>
> On Dec 7, 2007 8:13 AM, Tilak Adhya <[EMAIL PROTECTED]> wrote:
> > Hi,
> >
> > I am new to the use of openSSL APIs. I need to use HMAC with SHA1.
> > But in the source code, I have seen that HMAC is written to work only
> > with MD5. How to use HMAC with SHA1. Is it possible to use HMAC
> > with SHA1 hash algorithm, in the existing code of openSSL-HMAC ?
> > If yes then how...? Do I need to change the source code...?
> > I am confused, please help me out...
> >
> > Awaiting for your reply...
> >
> > Thanks in advance.
> >
> > Thanks and Regards
> > Tila
> > ______________________________________________________________________
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