Some regular events

Month
Event
Location
Deadline
Notification
February
Financial Cryptography
Caribbean islands
October
December
April
ETAPS: FOSSACS, ESOP ...
Europe
October

May
IEEE Symposium on Security and Privacy Oakland, Calif.
November
January
June
ACM symposium on AC models and technologies (SACMAT)
January
March
June/July
Privacy Enhancing technologies



June
WOTE



July
Computer Security Foundations Symposium

February
March
October
ESORICS
Europe
March

October
ACM CCS
Virginia, USA
April

Also consider looking at: