Re: Encryption keys: RSA vs. ElGamal

2007-11-26 Thread Roscoe
http://www.samsimpson.com/cryptography/pgp/pgpfaq.html PGP DH vs. RSA FAQ Copyright (c) 1999 S.Simpson - All Rights Reserved A bit old, but I still found it interesting when I read it (wasn't quite so old then :). -- Roscoe On Nov 26, 2007 7:26 PM, <[EMAIL PROTECTED]> wrote: > Hello, > > I need

Re: Encryption keys: RSA vs. ElGamal

2007-11-26 Thread Robert J. Hansen
John W. Moore III wrote: > That said; I personally [subjectively] feel that Elgamal is bit-for-bit > more secure. This is common wisdom; unfortunately, I'm not sure that the common wisdom is correct. >From a pure math perspective, it's probably true that the discrete logarithm problem is harder t

Re: Encryption keys: RSA vs. ElGamal

2007-11-26 Thread Robert J. Hansen
> So it would be great if someone could tell me how they differ when > it comes to security and efficiency. Answering this in detail will require at least a solid undergraduate degree in either CS or mathematics. I am coming close to a Ph.D. in computer science, and I still screw up some of the

Re: Encryption keys: RSA vs. ElGamal

2007-11-26 Thread John W. Moore III
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 Robert J. Hansen wrote: >> So it would be great if someone could tell me how they differ when >> it comes to security and efficiency. > > Answering this in detail will require at least a solid undergraduate > degree in either CS or mathematics. Ro

Re: Encryption keys: RSA vs. ElGamal

2007-11-26 Thread Werner Koch
On Mon, 26 Nov 2007 10:56, [EMAIL PROTECTED] said: > There are some pages that explain the algorithms in detail, but I'm > not smart enough to evaluate their security and efficiency just by > looking at the algorithms. Go with Elgamal if you want that every OpenPGP impleentaion can cope with it

Encryption keys: RSA vs. ElGamal

2007-11-26 Thread at120
Hello, I need to create a subordinate key, which will be used for encryption only. I tried to find out how RSA differ from ElGamal by searching on the web, but I did not find much useful information. There are some pages that explain the algorithms in detail, but I'm not smart enough to evalua

Re: Decrypt problem with large file

2007-11-26 Thread Werner Koch
On Sun, 18 Nov 2007 00:39, [EMAIL PROTECTED] said: > gpg: original file name='abc.tgz' > gpg: packet(14) with unknown version 26 > gpg: WARNING: encrypted message has been manipulated! > gpg: packet(6) with unknown version 139 > > I repeated the decryption with different gpg versions (1.4.2, 2.0.4