i am pretty sure they r able to crack passwords but i dont know how easily they will decrypt pgp encrypted messages or ssh connections.
PGP encrypted messages can be cracked. Given that it would require something around 10,000,000,000,000 years, we can stop worrying about it now. I am quoting from the PGP FAQ http://pgp.dtype.org/pgpnet/pgp-faq/faq-03.html#3.1
" Can't you break PGP by trying all of the possible keys?
This is one of the first questions that people ask when they are first introduced to cryptography. They do not understand the size of the problem. For the IDEA encryption scheme, a 128 bit key is required. Any one of the 2^128 possible combinations would be legal as a key, and only that one key would successfully decrypt all message blocks. Let's say that you had developed a special purpose chip that could try a billion keys per second. This is FAR beyond anything that could really be developed today. Let's also say that you could afford to throw a billion such chips at the problem at the same time. It would still require over 10,000,000,000,000 years to try all of the possible 128 bit keys. That is something like a thousand times the age of the known universe! While the speed of computers continues to increase and their cost decrease at a very rapid pace, it will probably never get to the point that IDEA could be broken by the brute force attack.
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