v0.2.0 broken on Windows #10
Description
Due to openssl limitations: pyca/cryptography#3194
Need to reduce our cert validity period. How much? Not clear. MSDN says that "_gmtime64, which uses the __time64_t structure, enables dates to be expressed up through 23:59:59, December 31, 3000, UTC, whereas _gmtime32 only represent dates through 23:59:59 January 18, 2038, UTC.", so probably one of those is the limit.
