[paramiko] www.lag.net server issue?

Dwayne C. Litzenberger dlitz at dlitz.net
Mon Feb 18 22:02:39 PST 2008


On Sun, Feb 17, 2008 at 04:21:38PM -0800, Robey Pointer wrote:
>> Fetching failed:: peer certificate cannot be authenticated with known
>> CA certificates
>
>Another good example of why SSH is a superior protocol to SSL. I'm not  
>going to pay thousands of dollars to a financial corporation just to  
>have the "right kind" of cert. Therefore self-signed certs are a fact  
>of life, and all these SSL clients complaining about them just make  
>SSL look confusing to end users.

Robey,

For somebody browsing on an open wi-fi network---particularly someone who 
has never visited www.lag.net before---the "right kind" of SSL certs 
provide a useful service: They make it much more difficult for an attacker 
on the local wireless LAN to substitute your software with a modified 
version, and they would make it possible to bootstrap trust for your public 
GPG key.  In this use case, self-signed certificates are just as useful as  
the practice of _not_ checking SSH host keys: They provide a false sense of 
security, and completely fail to address the bootstrapping problem.

If you shop around, you can get an annual SSL cert for less than US$100 
(http://www.rapidssl.com/ currently advertises US$69/year).

As the maintainer of an important cryptography library, you should be 
providing _some_ means for end-users and distributors to verify that the 
software they download is the same software you release.

-- 
Dwayne C. Litzenberger <dlitz at dlitz.net>



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