mật mã Caesar
Also known as Caesar's cipher, shift cipher, Caesar's code, Caesar shift
kỹ thuật mã hoá thay thế mỗi ký tự bằng một ký tự khác trong bảng chữ cái cách nó một khoảng cố định
AI overview
A Caesar cipher is a simple encryption technique that shifts each letter in a message by a fixed number of positions in the alphabet, making the text unreadable without knowing the shift amount. It matters as a foundational example in cryptography that illustrates basic principles of how information can be scrambled and unscrambled, though it's too simple to provide real security by modern standards.
AI-generated from the Wikipedia summary — may contain errors.