On Tue, 2006-03-28 at 09:48 -0500, [EMAIL PROTECTED] wrote:
> I have a Net-SNMP-based application that needs some weak encryption to
> cloak strings from idle viewing (like the conversion of createUser to
> usmUser in /var/net-snmp/snmpd.conf).
"weak" encryption is right!
> I'm hoping that the encoding and
> decoding routines are public enough that I can use them out of the
> Net-SNMP libraries but I'm having trouble finding them.
snmplib/snmpusm.c:usm_save_user():
read_config_save_octet_string(cptr, (u_char *) user->name,
strlen(user->name) + 1);
read_config_save_octet_string(cptr, (u_char *) user->secName,
strlen(user->secName) + 1);
snmplib/snmpusm.c:usm_read_user():
line = read_config_read_octet_string
line, (u_char **) & user->name, &len);
line = read_config_read_octet_string(
line, (u_char **) & user->secName, &len);
This fields are simply the relevant strings, displayed as hex values
rather than printable characters. They'll protect you against a
simple "strings" scan, but not much more.
Dave
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