Explore the inner workings of the javax.crypto.Cipher class in Java's cryptography API: understand its provider-based architecture ...

A unique cipher that uses playing cards and dice to turn languages into glyphs produces text eerily similar to the glyphs in ...

For five decades, many have tried to crack the Zodiac's Z13 cipher - which promises to reveal the killer's true name. Now, ...

Code is the language of mystery & secrets   It may have had none of the sophistication of cryptography, but it was no less ingenious a code. An NCR-based rough & tough gang of lowly ...

Learn what the Hamster Kombat Daily Cipher is, how to solve the 04 January 2026 puzzle, and ways to increase your in-game ...

1. Introduction -- 2. From Julius Caesar to simple substitution -- 3. Polyalphabetic systems -- 4. Jigsaw ciphers -- 5. Two-letter ciphers -- 6. Codes -- 7. Ciphers for spies -- 8. Producing random ...

Microsoft is moving to disable RC4, an encryption cipher embedded in Windows authentication for more than two decades. The decision follows years of documented abuse, repeated warnings from security ...

History doesn’t often remember people like Richard Hayes, the quiet librarian with Mayo roots who outsmarted the Nazis, ...

Codebreaker Alex Baber says he used AI to conclude a single suspect, Marvin Margolis, was behind both unsolved cases.

Amateur investigator Alex Baber suggests a single man may have been responsible for both the murder of Black Dahlia in 1947 n ...

Introduction: A revolutionary cipher -- Cryptology before 1500: a bit of magic -- The black chambers: 1500-1776 -- Crypto goes to war: the American Revolution -- Crypto goes to war: the American Civil ...