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List:       gnupg-users
Subject:    Re: Symmetric encryption - options?
From:       Eric Christensen <eric () christensenplace ! us>
Date:       2012-03-13 11:09:07
Message-ID: CAD9NUJrCORnFwt0bJ6j=u0HxcTmpXJ+QdYPyWCUDyH1FfuHm9Q () mail ! gmail ! com
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On Mar 13, 2012 6:23 AM, "jpemail2001-321@yahoo.com" <
jpemail2001-321@yahoo.com> wrote:

> gpg: CAST5 encrypted data
> gpg: encrypted with 1 passphrase
> Test message
> gpg: WARNING: message was not integrity protected
>
-------------------------------------------------------------------------------------
>
> What does mean CAST5 and is it a safe alghorithmus? Why not RSA?

It isn't RSA because this is symmetric encryption.  CAST5 is a 128-bit
block cypher.

> And why was the message not integrity protected and how to protect it?

Because this is symmetric encryption.  You would need to sign the data to
get integrity protection.

--Eric

[Attachment #5 (text/html)]

<p><br>
On Mar 13, 2012 6:23 AM, &quot;<a \
href="mailto:jpemail2001-321@yahoo.com">jpemail2001-321@yahoo.com</a>&quot; &lt;<a \
href="mailto:jpemail2001-321@yahoo.com">jpemail2001-321@yahoo.com</a>&gt; wrote:</p> \
<p>&gt; gpg: CAST5 encrypted data<br> &gt; gpg: encrypted with 1 passphrase<br>
&gt; Test message<br>
&gt; gpg: WARNING: message was not integrity protected<br>
&gt; -------------------------------------------------------------------------------------<br>
 &gt;<br>
&gt; What does mean CAST5 and is it a safe alghorithmus? Why not RSA?</p>
<p>It isn&#39;t RSA because this is symmetric encryption.   CAST5 is a 128-bit block \
cypher.</p> <p>&gt; And why was the message not integrity protected and how to \
protect it?</p> <p>Because this is symmetric encryption.   You would need to sign the \
data to get integrity protection.</p> <p>--Eric<br>
</p>



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