Translation guide
The practice and study of techniques for secure communication in the presence of adversaries. This guide covers how to express the concept of cryptography in Japanese, from the academic field to everyday encryption.
Referring to cryptography as a discipline, research area, or university subject.
The standard term for the academic study of cryptography, including both theory and application.
彼は大学で暗号学を専攻している。
He is majoring in cryptography at university.
Specifically refers to the theoretical aspects of cryptography, such as mathematical foundations and proofs.
この論文は暗号理論の最新の進展を扱っている。
This paper deals with the latest advances in cryptography theory.
Focuses on the practical techniques and technologies of cryptography, often used in engineering contexts.
暗号技術はインターネットセキュリティの基盤です。
Cryptographic technology is the foundation of internet security.
Referring to the act or process of using codes and ciphers to protect information.
The most common term for encryption, the process of converting plaintext into ciphertext. Often used as a noun or with する.
データの暗号化は必須です。
Data encryption is essential.
このファイルを暗号化してください。
Please encrypt this file.
General term for a code or cipher. Can refer to the encrypted message itself or the system used.
A more colloquial way to say 'to encrypt' or 'to put into code', though 暗号化する is more standard in technical contexts.
この手紙に暗号をかけて送ろう。
Let's encode this letter and send it.
Referring to the study of breaking codes and ciphers, often contrasted with cryptography.
The act or study of deciphering codes without the key. Often used in historical or intelligence contexts.
彼は第二次世界大戦中に暗号解読に従事した。
He was engaged in code-breaking during World War II.
A more formal term for cryptanalysis, often used in academic or technical discussions.
暗号解析の手法は常に進化している。
Cryptanalysis techniques are constantly evolving.
When discussing cryptography in a broad, non-technical sense, such as in news or casual conversation.
暗号学 is the broadest term for the science of cryptography. 暗号理論 focuses on mathematical theory, while 暗号技術 emphasizes practical implementation and engineering. Use 暗号学 for the academic discipline, 暗号理論 for theoretical discussions, and 暗号技術 when talking about applied cryptography.
暗号学の授業でRSA暗号を学んだ。
I learned about RSA encryption in my cryptography class.
暗号理論の研究者は新しいプロトコルを設計する。
Cryptography theory researchers design new protocols.
暗号技術の専門家がシステムの安全性を評価した。
A cryptography technology expert evaluated the system's security.
暗号 refers to codes and ciphers used for encryption, not passwords. A password is パスワード or 合言葉 (あいことば). Using 暗号 for 'password' is incorrect.
Wi-Fiのパスワードを教えてください。
Please tell me the Wi-Fi password.
オンラインバンキングには暗号技術が不可欠です。
Cryptography is essential for online banking.
彼女は暗号学の研究をしています。
She works in cryptography research.
彼らは秘密の暗号を使って通信した。
They communicated using a secret code.
Emphasizes the technological aspect, suitable when talking about modern applications like blockchain or secure messaging.
暗号技術のおかげで安全に買い物ができる。
Thanks to cryptography, we can shop safely.