A large manufacturing firm has installed hundreds of low-power sensor modules on its assembly lines. An engineer wants to implement an encryption scheme that supports confidential data transfers without overwhelming these modules. Which approach addresses the constraints?
An option using large prime-based key negotiation for frequent transmissions
A hashing procedure that relies on simpler code without encryption features
A framework that transfers most cryptographic operations to a remote node
A cipher library that includes fewer computational steps and lower memory usage
A cipher library specialized for small processors provides a practical balance of usable encryption and reduced computational overhead. A method that relies on large prime-based exchanges can be slow for microcontrollers. A hashing routine does not offer full confidentiality. Offloading most cryptographic processes to a remote server creates reliability concerns and may not protect data stored locally.
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What is a cipher library, and why is it suitable for low-power devices?
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Why are large prime-based key negotiation methods slow for microcontrollers?
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What is the difference between hashing and encryption, and why does hashing not ensure confidentiality?