Symmetric Encryption
N/A
对称加密
Symmetric Encryption · N/A · 对称加密 · si-MET-rik en-KRIP-shun · shared-key encryption · secret-key cryptography · Cryptography · crypto · keys · aesCryptographyshared-key encryption secret-key cryptography/si-MET-rik en-KRIP-shun/
Also known as: shared-key encryption, secret-key cryptography
Last updated August 8, 2026
Definition
Symmetric encryption uses the same secret key to encrypt and decrypt data — fast and efficient, but requiring secure key sharing between parties.
Real-World Example
Full-disk encryption typically uses a symmetric key unlocked by your password or TPM so the drive can decrypt quickly while you work.
References
Related terms
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