What will GnuPG 1.4.5 do with soft returns within a public key? Other questions.

Hi. I use PGP (Pretty Good Privacy) 8.0.2 in Windows XP Home Edition. My friend uses GnuPG (Gnu Privacy Guard), perhaps still version 1.4.5 and I guess in Windows XP. After a hard-drive replacement I discovered that I had saved his GnuPG public key in a .doc file on a Recordable Compact Disc

RE: cloudy understanding of asymmetric cryptography

Yup - you got it. Symmetric encryption is *way* faster (that's a technical term :-) than asymmetric. Hence the slower version is used to exchange a random key that is then used to handle the encryption/decryption of the data. Algorithms are implementation dependent but it is common to use 3DES for

Re: cloudy understanding of asymmetric cryptography

Felipe Alvarez schrieb: > On Thu, Mar 26, 2009 at 8:17 PM, Sven Radde wrote: > >> Hi! >> >> Felipe Alvarez schrieb: >> >>> Someone today shook my understanding of asymmetric ciphers. >>> >>> _Bob performs symmetric encryption on message with_ >>> _key "K" (generated randomly). He then encr

Re: cloudy understanding of asymmetric cryptography

On Thu, Mar 26, 2009 at 8:17 PM, Sven Radde wrote: > Hi! > > Felipe Alvarez schrieb: >> Someone today shook my understanding of asymmetric ciphers. >> >> _Bob performs symmetric encryption on message with_ >> _key "K" (generated randomly). He then encrypts "K" _ >> _with Alice's public key, and se

Re: cloudy understanding of asymmetric cryptography

Hi! Felipe Alvarez schrieb: > Someone today shook my understanding of asymmetric ciphers. > > _Bob performs symmetric encryption on message with_ > _key "K" (generated randomly). He then encrypts "K" _ > _with Alice's public key, and sends both the symetrically _ > _encrypted message and asymmetri

Re: cloudy understanding of asymmetric cryptography

On Thu, Mar 26, 2009 at 07:51:15PM +1000, Felipe Alvarez wrote: > I was unable to find adequate explanations online. http://www.gnupg.org/gph/en/manual/x209.html -- David Smith| Tel: +44 (0)1454 462380Home: +44 (0)1454 616963 STMicroelectronics | Fax: +44 (0)1454 462305 Mobile: +44

RE: cloudy understanding of asymmetric cryptography

Yes, that is right. Asymmetric encryption is a slow process. Encrypting the whole message would take forever. So, symmetric keys a quite small, that's why the described technique is used. Cheers, Sascha -Original Message- From: gnupg-users-boun...@gnupg.org [mailto:gnupg-users-boun...@gnu

Re: cloudy understanding of asymmetric cryptography

On Thu, Mar 26, 2009 at 07:51:15PM +1000, Felipe Alvarez wrote: > _Bob performs symmetric encryption on message with_ > _key "K" (generated randomly). He then encrypts "K" _ > _with Alice's public key, and sends both the symetrically _ > _encrypted message and asymmetrically encrypted key to Alice_

RE: Using GPG in embedded applications?

The threat mode is concerning the hacking of PC based software. We want to place a vital part of the processing of data on a unit consisting of a microcontroller device which we design and build ourselves. It is not possioble for a hacker to actually intercept the processing done on board this unit

cloudy understanding of asymmetric cryptography

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Someone today shook my understanding of asymmetric ciphers. _Bob performs symmetric encryption on message with_ _key "K" (generated randomly). He then encrypts "K" _ _with Alice's public key, and sends both the symetrically _ _encrypted message and as

Re: Using GPG in embedded applications?

On Tue, Mar 17, 2009 at 12:24 PM, Bo Berglund wrote: > ... > The idea is to have the PC program encrypt a fairly large chunk of data using > the embedded unit's public key and then send the result over the channel into > the embedded application. > > Inside this (protected) hardware the secret k