This 1.9alpha3 release has a one-line change to 1.9alpha2, fixing a serious ref-counting bug that caused segfaults. My thanks to Piers Lauder and an anonymous user for reporting this problem. A fixed 1.9alpha3 release is available from the PCT's home page: http://www.amk.ca/python/code/crypto.html --amk (www.amk.ca) Time reveals everything. -- The Doctor, in "The Keeper of Traken"