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Reblogged by kornel ("Kornel"):

Ange wrote:

Marc Stevens came up with a new kind of MD5 collisions:
alphanum, no space, single byte difference (always +4), and not even 2 blocks!

No more high entropy collision blocks!

md5("TEXTCOLLBYfGiJUETHQ4hAcKSMd5zYpgqf1YRDhkmxHkhPWptrkoyz28wnI9V0aHeAuaKnak")
=
md5("TEXTCOLLBYfGiJUETHQ4hEcKSMd5zYpgqf1YRDhkmxHkhPWptrkoyz28wnI9V0aHeAuaKnak")