Cryptography

Attribute: Intelligence
Cryptography is the skill of making and breaking encryption systems - usually codes and ciphers. It isn't required for simply using an encryption system, which comes under the skill used to operate a communications system, such as Electronics or Computer Operation. Creating a new encryption is done with a skill roll, and taking extra time is Routine. Breaking encryption is done with a contest of Cryptography, with a base time of one day, but the code-maker always uses his original roll. The code-breaker ought to be allowed to take extra time.