On the Security of Modular Exponentiation with Application to the Construction of Pseudorandom Generators.

Oded Goldreich Vered Rosen On the Security of Modular Exponentiation with Application to the Construction of Pseudorandom Generators. 71-93 2003 16 J. Cryptology 2 http://dx.doi.org/10.1007/s00145-002-0038-7 db/journals/joc/joc16.html#GoldreichR03