 | This article needs additional citations for verification. (March 2011) |
Privacy protocols are guidelines intended to allow computation while still protecting the individuals involved. It can be developed from just two individuals trying to discover if they both know the same secret, without leaking information about the secret itself. In this case, after the protocol runs, both individuals will either know that they share the secret, or know that they do not share it; they will have gained no additional information about the other's secret.