On Sun, May 03, 2015 at 12:36:05AM -0400, Mansour Moufid wrote: > "gpg ciphertexts with RSA 1024 were returned as fails" > > http://cr.yp.to/factorization/batchnfs-20141109.pdf That's an interesting paper (I wasn't aware of it and I like their approach; thanks for sharing) but I don't think its conclusions contractict that quote from Ross Anderson's blog post. That merely states that the NSA doesn't have a very fast way to break RSA-1024. It is well possible that they are using an approach similar to the one Bernstein and Lange describe to crack the RSA-1024 private keys of prime targets. Martijn.
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