hi friends,
i am new to linux and using FC5 distribution . every time i try installing softwares using yum ,i get the error of keys i have tried importing keys but these have helped little please help !!
=============================================================================
Package Arch Version Repository Size
=============================================================================
Installing:
jre i586 1.5.0_04-fcs /root/Desktop/jre-1.5.0_04-linux-i586.rpm 39 M
Updating for dependencies:
java-1.4.2-gcj-compat i386 1.4.2.0-40jpp_83rh.4 updates 2.4 M
jessie i386 1.0.1-5 updates 820 k

Transaction Summary
=============================================================================
Install 1 Package(s)
Update 2 Package(s)
Remove 0 Package(s)
Total download size: 42 M
Is this ok [y/N]: y
Downloading Packages:
warning: rpmts_HdrFromFdno: Header V3 DSA signature: NOKEY, key ID 797f5165


Public key for jre-1.5.0_04-linux-i586.rpm is not installed


importing errors

[root@localhost ~]# rpm --import http://rpm.livna.org/RPM-LIVNA-GPG-KEY
error: http://rpm.livna.org/RPM-LIVNA-GPG-KEY: import read failed(0).
[root@localhost ~]# rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY*
[root@localhost ~]# rpm --import http://freshrpms.net/RPM-GPG-KEY-freshrpms
[root@localhost ~]# rpm --import http://dag.wieers.com/packages/RPM-GPG-KEY.dag.txt
error: http://dag.wieers.com/packages/RPM-GPG-KEY.dag.txt: import read failed(-1).
rpmk: url.c:103: XurlFree: Assertion `u && u->magic == 0xd00b1ed0' failed.
Aborted
[root@localhost ~]# rpm --import http://atrpms.net/RPM-GPG-KEY.atrpms
[root@localhost ~]# rpm --import http://newrpms.sunsite.dk/gpg-pubkey-newrpms.txt
[root@localhost ~]# rpm --import http://apt.sw.be/dries/RPM-GPG-KEY.dries.txt
[root@localhost ~]# rpm --import http://www.jpackage.org/jpackage.asc
[root@localhost ~]# rpm --import http://kde-redhat.sourceforge.net/gp...f6382fa-3e1ab2
error: http://kde-redhat.sourceforge.net/gp...6382fa-3e1ab2: import read failed(0).


please help

To take care of the key ID 797f5165 error:
Livna key:
Dag Wieers:
KDE Red Hat:

it worked thanks .... please tell me how does one find the specific keys ...

Mostly with google, for the dag wieers key I put "dag wieers gpg key" in the search field and the first link took me to this page which looks like a key. So I copy the URL in the browser and add it after "rpm --import".
For the Red Hat sourceforge error in your post I clicked on the URL link which took me to an error page, I shortened the URL to: http://kde-redhat.sourceforge.net/ , on that page is a link to the gpg key page that I clicked on and again, it looked like a valid key so I copied the URL and put it after "rpm --import".
I usually take this guy's advice when setting up Fedora, He usually has links to the keys also, for Fedora 7 he only has the Livna key link under "Setup yum".