Thread: hi i need to encrypt one field in a table

hi i need to encrypt one field in a table

From
"Penchalaiah P."
Date:
<div class="Section1"><pre><font face="Courier New" size="2"><span
style="font-size:10.0pt">Hello,</span></font></pre><pre><fontface="Courier New" size="2"><span
style="font-size:10.0pt">Iwant to create a table with an encrypted field for a password entry,
so</span></font></pre><pre><fontface="Courier New" size="2"><span style="font-size:10.0pt">that you can see only
********.</span></font></pre><pre><fontface="Courier New" size="2"><span style="font-size:10.0pt">And can I encrypt
fieldswhich datatype is an integer or a timestamp?</span></font></pre><pre><font face="Courier New" size="2"><span
style="font-size:10.0pt"> </span></font></pre><pclass="MsoNormal"><font face="Arial" size="2"><span
style="font-size:10.0pt;
font-family:Arial">Hi pls let me know this………..</span></font><p class="MsoNormal"><font face="Arial" size="2"><span
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Re: hi i need to encrypt one field in a table

From
Juris
Date:
For SQL-passwords usually use hashes...

2006/5/30, Penchalaiah P. <penchalaiahp@infics.com>:
>
>
> Hello,
> I want to create a table with an encrypted field for a password entry, so
> that you can see only ********.
> And can I encrypt fields which datatype is an integer or a timestamp?
>
>
>
> Hi pls let me know this………..
>
>
>
> Thanks  &  Regards
>
> Penchal reddy | Software Engineer
>
> Infinite Computer Solutions | Exciting Times…Infinite Possibilities...
>
> SEI-CMMI level 5 | ISO 9001:2000
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> IT SERVICES | BPO
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>
>
>
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> & Distribution | Government
>
>
> Tel +91-80-5193-0000(Ext:503)| Fax  +91-80-51930009 | Cell No
> +91-9980012376|www.infics.com
>
> Information transmitted by this e-mail is proprietary to Infinite Computer
> Solutions and/ or its Customers and is intended for use only by the
> individual or entity to which it is addressed, and may contain information
> that is privileged, confidential or exempt from disclosure under applicable
> law. If you are not the intended recipient or it appears that this mail has
> been forwarded to you without proper authority, you are notified that any
> use or dissemination of this information in any manner is strictly
> prohibited. In such cases, please notify us immediately at
> info.in@infics.com and delete this mail from your records.
>
>


Re: hi i need to encrypt one field in a table

From
Mario Splivalo
Date:
On Tue, 2006-05-30 at 15:42 +0530, Penchalaiah P. wrote:
> Hello,
> I want to create a table with an encrypted field for a password entry, so
> that you can see only ********.
> And can I encrypt fields which datatype is an integer or a timestamp?

No can do. I mean, you can't do something like that. You can either give
(actually, revoke) that particular user/role permisions to read the
table with the passwords, or you could store hashed values to the
database. 

Later is prefered, I'd say. You could use md5() function to create
hashes, store those in the database, and when checking for the
credentials compare the hases. You'd compare user input flushed trough
md5() function with the hash you have in the database. That way you
don't know what user passwords are, and you could only set a new
password if user forgets his/hers password.

You don't need encrypted passwords. 
Mario
-- 
Mario Splivalo
Mob-Art
mario.splivalo@mobart.hr

"I can do it quick, I can do it cheap, I can do it well. Pick any two."