On 09/17/2011 09:14 PM, Chris Palmer wrote:

Thus, having more signers or longer certificate chains does not reduce the 
probability of failure; it gives attackers more chances to score a hit with 
(our agreed-upon hypothetical) 0.01 probability. After just 100 chances, an 
attacker is all but certain to score a hit.

Agreed.  But, that is just a consequence of the numbers involved.

The real problem, however, is not the number of signers or the length
of the cert-chain; its the quality of the "certificate manufacturing"
process.

Arshad Noor
StrongAuth, Inc.
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