Attacking the IV Setup of Py and Pypy
نویسندگان
چکیده
In this paper we show that Py and Pypy are practically insecure due to the flaw in their IV setup. With about 2 IVs (with special difference between the IVs), there are two identical keystreams.
منابع مشابه
Key Recovery Attack on Py and Pypy with Chosen IVs
In this paper we extend our previous attack to recover the key of Py and Pypy. If the IV size is at least ten bytes, the chosen IV attack can be applied to recover the key information of Py and Pypy. In general, ivsiveb− 9 bytes of the key can be recovered, where ivsizeb indicates the size of the IV in bytes. For example, for 256-bit key and 256-bit IV, the key is reduced to 72 bits with about ...
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تاریخ انتشار 2006