From: spamtrap@koldfront.dk (Adam Sjøgren)
Subject: Re: Encrypting outgoing message but not Gcc?
Date: Sun, 07 Dec 2003 12:35:59 +0100 [thread overview]
Message-ID: <87u14cvp0g.fsf@virgil.koldfront.dk> (raw)
In-Reply-To: <87zne43mzs.fsf@shampoo.pants.nu>
On Sun, 07 Dec 2003 03:07:03 -0800, Nathan wrote:
> It's a property of the way almost all assymetric cryptography is
> implemented. The problem is that public key encryption is
> grotesquely slow, so programs like PGP/GPG don't encrypt the entire
> message with the public key. Instead, they encrypt the message with
> a symmetric cypher, like IDEA or Blowfish, then encrypt the
> symmetric key with the public key for the desired recipient. If you
> have multiple recipients, then multiple copies of the encrypted
> symmetric key are included, each encrypted for a specific public key
> pair.
Ah, the first part I'd heard before (but blissfully forgotten), the
second was new to me. Thanks for the clarification!
Best regards,
--
"Do not feed the oysters under the clouds" Adam Sjøgren
asjo@koldfront.dk
next prev parent reply other threads:[~2003-12-07 11:35 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-12-06 16:17 Lloyd Zusman
2003-12-06 16:46 ` Adam Sjøgren
2003-12-06 18:35 ` Lloyd Zusman
2003-12-07 1:54 ` Adam Sjøgren
2003-12-07 2:09 ` Lloyd Zusman
2003-12-07 2:25 ` Adam Sjøgren
2003-12-07 2:37 ` Lloyd Zusman
2003-12-07 11:07 ` Nathan Sullivan
2003-12-07 11:35 ` Adam Sjøgren [this message]
2003-12-07 13:08 ` Lloyd Zusman
2003-12-06 17:24 ` Reiner Steib
2003-12-06 17:58 ` Lloyd Zusman
2003-12-07 13:35 ` Lloyd Zusman
2003-12-07 13:45 ` Lloyd Zusman
2003-12-07 15:16 ` Lloyd Zusman
2003-12-07 15:44 ` Simon Josefsson
2003-12-07 16:28 ` Lloyd Zusman
2003-12-06 17:47 ` Simon Josefsson
2003-12-07 16:50 ` Lloyd Zusman
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