wiki:Crypto/ecdsa

Version 3 (modified by guest, 6 years ago) (diff)

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Lengths

The length of ciphers with comparable security.

Symmetric ECC DH/DSA/RSA
80 163 1024
112 233 2048
128 283 3072
192 409 7680
256 571 15360

IETF [1]

Symmetric Key EC RSA Time to Break Machines Memory
56 112 430 < 5 min 105 trivial
80 160 760 600 months 4300 4Gb
96 192 1020 3*106 yrs 114 170Gb
128 256 1620 1016 yrs 0.16 120Tb

Analysis by RSA-labs [2]

[1] ECRYPT II 2011 http://www.ecrypt.eu.org/documents/D.SPA.17.pdf[[BR]] [2] http://tools.ietf.org/html/rfc4492