Understanding sys.link$

Hello Experts;

I tried a few tests on 10.2.0.4 with RHEL - 5.1
Testings on DB links find password > >
Just, I tried a few tests, what are the disadvantages when using DBLINK.

I user a and user b. I can see the encrypted password of sys.link$

SQL > select USER id, name, Mas sys.link$ where
2 name ='XXXXX. REGRESS. RDBMS. DEV. US. ORACLE. COM';

USERID NAME MAS
XX xxxxx. REGRESS. RDBMS. DEV. US. ORACLE.COM 05BD4A6D6C3019E29EEB898D2343BCB0C2

***************************************************

in this view of dictionary (sys.link$), I have a field 'password' - how can I know that the value?

* 05BD4A6D6C3019E29EEB898D2343BCB0C2-> This is the value of password for xx.*

using the password value, how can I find correct password?

FYI: just to test and try to know the concept of oracle. That's all.

"* NOTHING MORE THAN *"

Thanks in advance...

Published by: 969352 on April 28, 2013 14:59

>
in this view of dictionary (sys.link$), I have a field 'password' - how can I know that the value?
>
You already have this value - you posted
>
05BD4A6D6C3019E29EEB898D2343BCB0C2--> is the value of password for xx.
>
Who IS your value
>
using the password, how can I find correct password?
>
You can't - it does not exist. Everything that exists is the HASH of the password. Oracle does not store the actual password and it is chopped, not encrypted. A HASH is one-way; You can't get the plaintext of the hash.

Tags: Database

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