HTTP session-id\u2019s take an important role in almost any web site today. This paper presents a cryptanalysis of Java Servlet 128-bit session-id\u2019s and an e\ufb03cient practical prediction algorithm. Using this attack an adversary may impersonate a legitimate client. Through the analysis we also present a novel, general space-time tradeo\ufb00 for secure pseudo random number generator attacks.<\/p>\n","protected":false},"excerpt":{"rendered":"
HTTP session-id\u2019s take an important role in almost any web site today. This paper presents a cryptanalysis of Java Servlet 128-bit session-id\u2019s and an e\ufb03cient practical prediction algorithm. Using this attack an adversary may impersonate a legitimate client. 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