![]() ![]() Paul Fricker revised and wrote the 7th edition rules with development and additional material from Mike Mason. Our thanks to you all! In Sanity-Chaosium To all those around the world who give their time and energy to spread the word, and are truly one of us. Paul Fricker To the fans and backers of Call of Cthulhu and Chaosium who helped to make this new edition a reality. You're the best! -Mike Mason To my friend, Philip Sidebotham, for introducing me to both roleplaying games and the works of H.P. From one of his books I read my first Lovecraftian story, “Pickman’s Model.” Thanks, Dad. To my father, who introduced me to Lovecraft and to science fiction in general. ![]() The authors would like to thank the following people for their ongoing support and assistance: Charlie Krank, Christian Grussi, Keary Birch, Alan Bligh, John French, Scott Dorward, Matthew Sanderson, Dean Engelhardt, Matt Anderson, Tim Vincent, Kevin White, Garrie Hall, Pedro Ziviani, Dan Kramer, Scott David Aniolowski, Brian Courtemache, Brian Sammons, Chad Bowser, Tom Lynch, Andrew Leman of the HPLHS, and of course Sandy Petersen, without whom none of this would have happened! Paul Fricker and Mike Mason Editorial: Scott Dorward, Badger McInnes, Mike Mason and Charlie Krank Design Format: Badger McInnes and Mike Mason Layout: Badger McInnes, Charlie Krank, Nicholas Nacario, and Rick Meints Art Direction: Mike Mason, Meghan McLean, Nicholas Nacario and Daniel Skomorowski Cover Illustration: Sam Lamont Chapter Illustrations: Jonathan Wyke, Paul Carrick, Rob Gould, François Launet, Victor Leza, Charles Wong, Mike Perry, Nicholas Cloister, Antonio Luis, Kalli Schulz Interior Illustrations: Rachel Kahn, Grilla, Chris Huth, Loïc Muzy, Paul Carrick, Scott Neil, Peter Houston, Jonathan Wyke, Victor Leza, Sam Lamont, Celeste Burcham, Caryad, Antonio Mainez, Tom Sullivan, Marco Morte Cristoforo Font created by: Thomas Phinney Cartography: Stephanie McAlea For Lynn Willis I believe I will be using an HMAC, but the multiple levels of keys in play makes things less clear to me.Lynn Willis This revised 7th Edition is a collaboration between ![]() What cryptographic primitives should be used, and how and where are they applied? They do not know when the others issue keys to Agents, though they each must be able to independently verify the authenticity of messages received from these Agents.ĭirectors share a top-secret key that they can use to create keys for the Agents.Īre there certain terms for what is happening? Directors reject any messages signed with a key issued more than 6 months ago.ĭirectors maintain very minimal communication among each other. Agents have different keys, and should not be able to fake messages as other Agents. The content of these messages are not secret, but it is crucial that they are not faked.īefore the Agent leaves, the Director issues him secret key that Agent "signs" his messages with to verify authenticity. Messages include the # of the agent (33, etc.). Agents rely on untrusted messengers to deliver messages back to the Directors. During these missions, communication is spotty and unreliable. It is comprised of several Directors at the top, and many Agents underneath them.Ī Director sends Agents on secret missions. ![]()
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