Re: RSA padding scheme

2012-01-22 Thread Sergey Matveev
- User brian m. carlson on 2012-01-23 00:47:03 wrote: >> * sending ciphertext with the same "e" to several recipients >This depends on a small message. All secure padding schemes avoid this >problem because the pad the message so it is not small. >> * no randomness >All secure padding schemes

Re: Creating a key bearing no user ID

2012-01-22 Thread John Clizbe
Holger wrote: > 2012-01-22T16:11:14-08:00, Doug Barton: >> On 01/22/2012 10:05, Holger wrote: >> > I intend to use gpg only for receiving encrypted e-mail, not signing >> > my outgoing e-mail. Because I don't want my name or e-mail address >> > out there on the keyservers, >> >> Why not? > > One

Re: Creating a key bearing no user ID

2012-01-22 Thread Holger
2012-01-22T16:11:14-08:00, Doug Barton: > On 01/22/2012 10:05, Holger wrote: > > I intend to use gpg only for receiving encrypted e-mail, not signing > > my outgoing e-mail. Because I don't want my name or e-mail address > > out there on the keyservers, > > Why not? One reason is spam, though we

Re: RSA padding scheme

2012-01-22 Thread brian m. carlson
On Sun, Jan 22, 2012 at 11:29:54PM +0400, Sergey Matveev wrote: > >If the standard allowed different padding schemes, then all > >implementations would have to support multiple padding schemes, which > >would be burdensome without providing significantly more security. > Hmm, I see. However does it

Re: Creating a key bearing no user ID

2012-01-22 Thread Doug Barton
On 01/22/2012 10:05, Holger wrote: > Hello gnupg-users, > > I intend to use gpg only for receiving encrypted e-mail, not signing > my outgoing e-mail. Because I don't want my name or e-mail address > out there on the keyservers, Why not? > I want do create a key without a uid. > People who want

Re: Creating a key bearing no user ID

2012-01-22 Thread David Shaw
On Jan 22, 2012, at 1:05 PM, Holger wrote: > Hello gnupg-users, > > I intend to use gpg only for receiving encrypted e-mail, not signing my > outgoing e-mail. Because I don't want my name or e-mail address out there on > the keyservers, I want do create a key without a uid. People who want to s

Re: RSA padding scheme

2012-01-22 Thread Sergey Matveev
- User brian m. carlson on 2012-01-22 18:54:22 wrote: >GnuPG uses PKCS #1 v1.5. This is specified in RFC 4880. >You cannot choose a different padding scheme and remain in compliance >with the OpenPGP standard. Ah! I see. Thank you! Now I understand. >If the standard allowed different padding

Re: RSA padding scheme

2012-01-22 Thread brian m. carlson
On Sun, Jan 22, 2012 at 07:48:28PM +0400, Sergey Matveev wrote: > As I understand, such asymmetric ciphers as RSA and/or ElGamal requires > strong padding applied before "message" is encrypted. Message is of > course the one-time session key, used to encipher the actual data. To use them correctly

Re: Creating a key bearing no user ID

2012-01-22 Thread Robert J. Hansen
On 1/22/2012 11:59 AM, Holger wrote: > Will this work or did I miss something? The OpenPGP spec (RFC4880) says that a transferable public key (one that can be shared, basically) is required to have one or more user IDs attached (RFC4880 section 11.1). If you don't have a user ID on your certifica

Creating a key bearing no user ID

2012-01-22 Thread Holger
Hello gnupg-users, I intend to use gpg only for receiving encrypted e-mail, not signing my outgoing e-mail. Because I don't want my name or e-mail address out there on the keyservers, I want do create a key without a uid. People who want to send me e-mail, get my e-mail address and keyID/finger

Re: Creating a key bearing no user ID

2012-01-22 Thread Holger
Mega sorry for the triple post. H ___ Gnupg-users mailing list Gnupg-users@gnupg.org http://lists.gnupg.org/mailman/listinfo/gnupg-users

Creating a key bearing no user ID

2012-01-22 Thread Holger
Hello gnupg-users, I intend to use gpg only for receiving encrypted e-mail, not signing my outgoing e-mail. Because I don't want my name or e-mail address out there on the keyservers, I want do create a key without a uid. People who want to send me e-mail, get my e-mail address and keyID/finger

Creating a key bearing no user ID

2012-01-22 Thread Holger
Hello list, I intend to use gpg only for receiving encrypted e-mail, not signing my outgoing e-mail. Because I don't want my name or e-mail address out there on the keyservers, I want do create a key without a uid. People who want to send me e-mail, get my e-mail address and keyID/fingerprint w

RSA padding scheme

2012-01-22 Thread Sergey Matveev
Greetings everyone! As I understand, such asymmetric ciphers as RSA and/or ElGamal requires strong padding applied before "message" is encrypted. Message is of course the one-time session key, used to encipher the actual data. There are different versions of PKCS#1, NESSIE, OAEP and other schemes

Re: Using root CAs as a trusted 3rd party

2012-01-22 Thread gnupg
On 22/01/12 02:49, Aaron Toponce wrote: > Yes. That's all I'm after. I think the militant "I _absolutely_ won't sign > any keys unless I verify their identification, face-to-face" attitude is > hindering adoption. There must be a way to build the WOT, while still > allowing people to sign keys wit

Re: Using root CAs as a trusted 3rd party

2012-01-22 Thread Gregor Zattler
Hi Aaron, gnupg users, * Aaron Toponce [21. Jan. 2012]: > On Sat, Jan 21, 2012 at 10:50:11PM +0100, Gregor Zattler wrote: >> IMHO by signing a key you make a statement about the connection >> between a person or owner and the user id you sign, saying "I >> somehow convinced myself that user owns t

Re: Protecting IDs at a key signing party

2012-01-22 Thread Peter Lebbing
On 21/01/12 23:01, Robert J. Hansen wrote: > Then they're signing it with *their* certificate, backed up by > credentials that you yourself checked. How is this a problem? While I generally agree with you on the rest of your mail, this is not necessarily the case. You met them at a keysigning par