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There are two kinds of encryption algorithms used in enterprise-level communications security: symmetric and asymmetric, Moorcones explains.

Data is encrypted when it is generated, and symmetric encryption algorithms such as AES are used to ensure data confidentiality in transit and at rest.

Public-key algorithms are important too. They help get around the fundamental drawback of symmetric-key encryption, which is that you need a secure way to share symmetric keys in the first place.

These cryptography algorithms are designed to protect ephemeral data transmitted between edge devices and sensors, not long-term secrets.

All three are symmetric encryption algorithms built on a SPN—short for substitution-permutation network structure.