オンライン暗号ツール – テキストを無料で暗号化・復号
CipherLock is a free browser-based cipher tool and cryptography academy. Use the interactive tool to encrypt or decrypt any text using classical and modern algorithms including the Caesar cipher, Vigenère cipher, AES-256, Morse code, Base64 and Hexadecimal. All processing happens client-side, so your messages never leave your browser.
New to cryptography? The CipherLock Academy teaches the complete history of secret codes and encryption, from the Scytale used by Spartan generals in 650 BC, through the Caesar cipher of ancient Rome, the Vigenère cipher known for 300 years as unbreakable, the Enigma machine broken by Alan Turing, up to modern AES encryption and post-quantum cryptography algorithms. Learn how substitution ciphers, transposition ciphers, polyalphabetic ciphers and symmetric key encryption work, with interactive examples and step-by-step explanations, for free, with no account required.
シーザーからKyberまで。どの暗号にも歴史があり、弱点があり、存在する理由があります。まずツールを使い、それから仕組みを理解しましょう。