在线密码工具 – 免费加密与解密文本
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.
从凯撒到 Kyber。每一种密码都有它的历史、弱点，以及存在的理由。先用工具，再去理解它为何奏效。