Marketplace is a convenient destination on facebook to discover, buy and sell items with people in your community. A craigslist s stlouis enigma deciphering the marketplace s secret codes competitor comparison craigslist has dealt with increasing rivals from other digital classifieds sites such as facebook's selling platform and ebay's classifieds. During world war two the german forces used an electromechanical device to encode and decode their secret communications. The device, called the enigma, had a keyboard with 26 keys, and 26. These 11 methods range from some of the earliest examples in history to some of the most advanced encryption techniques in history. The caesar shift cipher used by the roman army. Decrypt and translate enigma online. The enigma cipher machine is well known for the vital role it played during wwii. Alan turing and his attempts to crack the enigma machine code changed history. Nevertheless, many messages could not be. Turing's contributions went beyond cracking the. 8 ciphers that shaped history. These secret codes enabled secure communication—at least until others found ways to crack them. The complexity of the enigma's encryption system was believed to render it virtually impregnable, fostering a sense of confidence in the security of german military communications. However, this reliance on the machine's perceived invulnerability would eventually become a. Craigslist provides local classifieds and forums for jobs, housing, for sale, services, local community, and events.