In the context of cryptography and computer security, a **security parameter** is a variable that determines the security level of a cryptographic algorithm or protocol. It influences various aspects of the security system, including the size of keys used in encryption, the complexity of computations, and the security guarantees provided against specific types of attacks. ### Key Characteristics of Security Parameters: 1. **Size and Complexity**: The security parameter typically influences the size of keys (e.g.
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