Timing RSA and Certificates worth ??

oops
Earlier, I said :
>
>My limited mind induces me to think that a certificate become subject to
timing attacks on the RSA private signing key.
>In this case, certificate verification  processes seem flawed and highly
unreliable.

I meant that on-line certificate issuing, notary and similar services where
data is submitted to a system for processing/RSA encryption are subject to
this for of attack.
Parts of the SEPP/STT protocols appear to require this of merchants and
customers.
I retract my comments about ecash/echeques - I'm not sure of the
implications there yet.
As for SEPP/STT - another nail in the coffin, me thinks.
lyal