Eigentlich interessant. Ich frage mich nur, wieviel davon vom Begehren nach publicity gesteuert ist. http://www.madchat.org/crypto/cbtwirl.pdf ---------------------------CUT-------------------------------- It has been often claimed that 1024-bit RSA keys are safe for the next 15 to 20 years, since when applying the Number Field Sieve to such composites both the sieving step and the linear algebra step would be unfeasible (e.g., [4, 21] and a NIST guideline draft [16]). However, these estimates relied on PC-based implementations. We presented a new design for a custombuilt hardware implementation of the sieving step, which relies on algorithms that are highly tuned for the available technology. With appropriate settings of the NFS parameters, this design reduces the cost of sieving to about $10M (plus a one-time cost of $20M). Recent works [14, 9] indicate that for these NFS parameters, the cost of the matrix step is even lower. ---------------------------CUT--------------------------------
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