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you will find a few links to decrypters
2048-bit keys - that is enormously stronger than anything Lenstra et al attempted, in fact, it would require factoring a 617-digit number. RSA Labs claim (see: http://www.rsa.com/rsalabs/node.asp?id=2004) that 2048-bit keys are 2^32 (2 to the power of 32) times harder to break using NFS, than 1024-bit keys. 2^32 = 4,294,967,296 or almost 4.3 billion, therefore breaking a 2048-bit [key] would take about 4.3 billion times longer (using the same standard desktop processing) than doing it for a 1024-bit key. It is therefore estimated, that standard desktop computing power would take 4,294,967,296 x 1.5 million years to break a 2048-bit [key]. Or, in other words, a little over 6.4 quadrillion years.
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