A message authentication code will reveal any tampering, accidental or intentional.
The validity of a transmitted message. Message integrity means that a message has not been tampered with or altered. The most common approach is to use a hash function that combines all the bytes in the message with a secret key and produces a message digest that is difficult to reverse.
When using a Secret Key in conjunction with a message to attain Message Integrity, the resulting digest is known as the Message Authentication Code, or MAC.
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The disappearance of citizens that oppose government policies is likely to take place under a dictatorship or authoritarian regime. Under an authoritarian regime there is limited political pluralism. Freedom of thought and speech is repressed in order to maintain political stability. The influence of those that oppose government is neutered through ways such as enforced disappearances.
Power is divided among legislative, executive, and judicial branches beacuse our government is divided in to 3 branches
