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Welcome to CRYPTUTOR, a wiki resource for theoretical cryptography, presented by the cryptography group at the University of Illinois, Urbana-Champaign. The project is still in its infancy, but our goal is to eventually develop an encyclopedia of the topics within our field. Please be warned that at this early stage, many pages may still have errors, but we are certainly working on polishing them up.

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SIM-CPA real world interaction
SIM-CPA real world interaction

SIM-CPA security is a security definition for private- or public-key encryption schemes. At a high level, SIM-CPA security means that sending messages over an insecure channel via the encryption scheme is equivalent to sending those messages through a secure channel, from the point of view of a certain class of adversaries. SIM-CPA security can be shown to be equivalent to the more technical IND-CPA security.

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