Re: Is 1024-bit PGP key enough?
At 15:38 08/01/96 PDT, Jim Gillogly wrote:
Somebody says:
Is security provided by 1024-bit PGP key sufficient against most powerful computers that are available today? Say if smoe organization spent 10 billions of dollars on a cracking machine, would it be possible to crack the keys in reasonable time?
Derek Atkins <warlord@MIT.EDU> responds with some useful and authoritative information -- thanks.
Also, remember that although the PGP key is 1024 bits, it generates a much smaller IDEA key with 56 bits (I think... anyone?). The 56 bit key is vunerable to that $1 mil mystery machine that the NSA may or may not have. G.C.G. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | Geoffrey C. Grabow | Great people talk about ideas. | | Oyster Bay, New York | Average people talk about things. | | gcg@pb.net | Small people talk about people. | |----------------------------------------------------------------------| | PGP 2.6.2 public key available at http://www.pb.net/~wizard | | and on a plethora of key servers around the world. | |----------------------------------------------------------------------| | That which does not kill us, makes us stranger. - Trevor Goodchild | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-----BEGIN PGP SIGNED MESSAGE----- On Thu, 1 Aug 1996, Geoffrey C. Grabow wrote:
Also, remember that although the PGP key is 1024 bits, it generates a much smaller IDEA key with 56 bits (I think... anyone?). The 56 bit key is vunerable to that $1 mil mystery machine that the NSA may or may not have.
Nope. The IDEA key is 128 bits long and is probably much harder to break than a 3000-bit RSA modulus. Of course, the comparison is really useless, since nobody knows how advanced the NSA's factoring capabilities are. - -- Mark PGP encrypted mail prefered Key fingerprint = d61734f2800486ae6f79bfeb70f95348 http://www.voicenet.com/~markm/ -----BEGIN PGP SIGNATURE----- Version: 2.6.3 Charset: noconv iQCVAwUBMgGAtrZc+sv5siulAQGDSAP9HDXWsAPMzR/WUc29OLvYs+gg78HWsewH raZSNPP+O80Kjub/K5vmvz83b227H6wapyzOQpeVByGu+IafKi74ZTO0KhkrMLdK FX93eY0AKFYLU/PVgxGvTsIJt1SISK5URfSLhymYVbulW/Cevute7nHvf+ZmysHy YEY6ZQhx3Eo= =Veh2 -----END PGP SIGNATURE-----
participants (2)
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Geoffrey C. Grabow -
Mark M.