Translation guide
A method of encryption where the same key is used for both encryption and decryption.
The cryptographic technique itself.
Standard term for symmetric key cryptography. Literally 'common key encryption'.
共通鍵暗号では、暗号化と復号に同じ鍵を使います。
In symmetric key cryptography, the same key is used for encryption and decryption.
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.
共通鍵暗号と公開鍵暗号の違いを説明してください。
Please explain the difference between symmetric and asymmetric cryptography.
Alternative term, literally 'symmetric key encryption'. Less common than 共通鍵暗号 but still used.
対称鍵暗号は公開鍵暗号より高速です。
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.
秘密鍵暗号は鍵の共有が課題です。
Symmetric key cryptography has the challenge of key sharing.