RE: encryption generation errors:: update::really stumped

Hello,

I finally figured out why my call to generate_ku for authPriv
is failing:

It is this code snippet in keytools.c:

----------
   /*
     * Setup for the transform type.
     */
#ifdef USE_OPENSSL

#ifndef DISABLE_MD5
    if (ISTRANSFORM(hashtype, HMACMD5Auth))
        EVP_DigestInit(ctx, EVP_md5());
    else
#endif
        if (ISTRANSFORM(hashtype, HMACSHA1Auth))
        EVP_DigestInit(ctx, EVP_sha1());
    else {
        free(ctx);
        return (SNMPERR_GENERR);
    }
#else
    MDbegin(&MD);
#endif                          /* USE_OPENSSL */

----------
It would appear that there is NO support for authPriv via
the programming interface....interestingly enough, it works
(i.e., DES) from the command line interface!

SO what gives? I checked the CVS and I seem to have the current
version of keytools.c.

H-E-L-P!!

Thanks!

--daulat  
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of M.Daulat
Rai
Sent: Friday, April 14, 2006 10:29 AM
To: [email protected]
Subject: encryption generation errors

Hello All,

I can run a "c" program with authNoPriv successfully;
I modified it to use "authPriv" and the generate_ku()
function fails.

Here is the relevant code snippet:
----------------
cnst char *our_v3_passphrase = "The Net-SNMP Demo Password";
/* set the encryption method to DES */
    session.securityPrivProto = usmDESPrivProtocol;
    session.securityPrivProtoLen = sizeof(usmDESPrivProtocol)/sizeof(oid);
   session.securityPrivKeyLen = USM_PRIV_KU_LEN;
    
	
/* set the encryption to a DES encrypted version of our
       passphrase */
    if (generate_Ku(session.securityPrivProto,
                    session.securityPrivProtoLen,
                    (u_char *) our_v3_passphrase, strlen(our_v3_passphrase),
                    session.securityPrivKey,
                    &session.securityPrivKeyLen) != SNMPERR_SUCCESS)
	{
==========
Please note the following command works:
snmpget -v 3 -u MD5DESUser -a MD5 -A "The Net-SNMP Demo Password" -x DES -X
"The Net-SNMP Demo Password" -l authPriv test.net-snmp.org system


Please help!

What I am missing in my call? 

Thanks!

--daulat  




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