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What is Symmetric Encryption?

Crypto Terms Glossary: What is Symmetric Encryption?

Symmetric encryption is a form of encryption which uses the same key to both encrypt and decrypt electronic information. Both entities communicating via symmetric encryption must have identical copies of this key, which should be kept secret and not shared with anyone in order to preserve the security of their interactions. By contrast, asymmetric encryption utilizes two keys — a public key to encrypt information, and a private key to decrypt information.

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