Translation guide
A method of encryption where the same key is used for both encryption and decryption.
The cryptographic technique itself.
Symmetric key cryptography (共通鍵暗号) uses one key for both encryption and decryption. Asymmetric cryptography (公開鍵暗号) uses a public/private key pair. In Japanese, be careful not to confuse 秘密鍵 (private key) with the symmetric key.
Standard term for symmetric key cryptography. Literally 'common key encryption'.
In symmetric key cryptography, the same key is used for encryption and decryption.
Alternative term, literally 'symmetric key encryption'. Less common than 共通鍵暗号 but still used.
Symmetric key cryptography is faster than public key cryptography.
Sometimes used, but can be ambiguous because 'secret key' may refer to the private key in asymmetric cryptography. Use with caution.
May cause confusion with private key in public key cryptography.
Symmetric key cryptography has the challenge of key sharing.
Please explain the difference between symmetric and asymmetric cryptography.