SHA

SHA1

SHA1 on todettu turvattomaksi ja sen käyttö tulisi lopettaa. Vuonna 2015 sen murtamisen arvioidaan maksaneen $700 000 USD ja vuonna 2018 enää noin $ 173 000 USD^[1]

Lähteet

↑ schneier.com 2012-10-05: When Will We See Collisions for SHA-1? Today Amazon rents compute time on commodity servers for about $0.04 / hour ~ $350 /year. Assume compute rental fees remain fixed while server capacity keeps pace with Moore's law. Then, since log2(350) ~ 8.4 the cost of the attack will be approximately: 213 * 28.4 = 221.4 ~ $2.77M in 2012 211 * 28.4 = 219.4 ~ $700K by 2015 29 * 28.4 = 217.4 ~ $173K by 2018 27 * 28.4 = 215.4 ~ $43K by 2021 Viitattu: 2015-11-08

[schneier-20121005-1] schneier.com 2012-10-05: When Will We See Collisions for SHA-1? Today Amazon rents compute time on commodity servers for about $0.04 / hour ~ $350 /year. Assume compute rental fees remain fixed while server capacity keeps pace with Moore's law. Then, since log2(350) ~ 8.4 the cost of the attack will be approximately: 213 * 28.4 = 221.4 ~ $2.77M in 2012 211 * 28.4 = 219.4 ~ $700K by 2015 29 * 28.4 = 217.4 ~ $173K by 2018 27 * 28.4 = 215.4 ~ $43K by 2021 Viitattu: 2015-11-08

[1]

SHA

SHA1

Lähteet

Navigointivalikko

Henkilökohtaiset työkalut

Nimiavaruudet

Kirjoitusjärjestelmät

Näkymät

Muut

Haku

Valikko

Työkalut