Version 1.7.7, 2008-06-28
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* Remove the global PRNG object
* The PK filter objects were removed
* Add a test suite for the ANSI X9.31 PRNG
* Much cleaner and (mostly) thread-safe reimplementation of es_ftw
* Remove both default arguments to ANSI_X931_RNG's constructor
* Remove the randomizing version of OctetString::change
* Make the cipher and MAC to use in Randpool configurable
* Move RandomNumberGenerator declaration to rng.h
* RSA_PrivateKey will not generate keys smaller than 1024 bits
* Fix an error decoding BER UNIVERSAL types with special taggings

