RE: Why plaintext cryptographic status messages must be out of band

1999-06-07 Thread Damon Gallaty
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 As one of the developers of the Outlook PGP plug-in, I feel I need to correct a misunderstanding: Ryan Lackey wrote: > What MS Outlook appears to do is display status information about > signature checking on messages in the mail message frame itself

Re: Why plaintext cryptographic status messages must be out of band

1999-06-07 Thread Anonymous
> What MS Outlook appears to do is display status information about > signature checking on messages in the mail message frame itself, > indistinguishable from ordinary text. The obvious attack is to send > a user unsigned mail (it could be encrypted, to add additional > legitimacy to the att

Re: ICSA certifies weak crypto as secure

1999-06-07 Thread Bill Stewart
The important points were >Btw -- large password files using anything like this scheme are obsolescent. >You can't use a hashed password for challenge/response, >The fundamental problem is that users pick bad passwords and passphrases ... Yup. I like S/Key better than the annoying SecureID

Re: Why plaintext cryptographic status messages must be out of band

1999-06-07 Thread William H. Geiger III
In <[EMAIL PROTECTED]>, on 06/05/99 at 06:39 PM, Ryan Lackey <[EMAIL PROTECTED]> said: >What MS Outlook appears to do is display status information about >signature checking on messages in the mail message frame itself, >indistinguishable from ordinary text. The obvious attack is to send a >

Why plaintext cryptographic status messages must be out of band

1999-06-07 Thread Ryan Lackey
Recently I had my first direct contact with the Microsoft Outlook MUA. Many people have praised its integration with PGP, internal passwords, scheduling features, and user interface. I've always associated Outlook with the numerous "macro exploits" discovered and successfully exploited for the p

Re: Why plaintext cryptographic status messages must be out of band

1999-06-07 Thread David Kennedy CISSP
-BEGIN PGP SIGNED MESSAGE- At 09:58 PM 6/5/99 -0400, Ryan Lackey wrote: >I saw a piece of news which increased my interest in Outlook -- allegedly, >microsoft is preparing a version for UNIX as part of a US DoD contract >which specifies UNIX as a messaging platform (for security reasons,