Ciphers are methods of encoding information to make it unintelligible to unauthorized parties. They have been used for centuries to protect sensitive information, such as military secrets, diplomatic communications, and personal letters.
Ciphers can be created using a variety of techniques, including substitution, transposition, and encryption algorithms. Substitution ciphers replace each letter of the plaintext with a different letter, symbol, or number. Transposition ciphers rearrange the order of the letters in the plaintext. Encryption algorithms use complex mathematical operations to scramble the plaintext.
