Introduction to ciphers and substitution. Alice and Bob and Carl and Julius: terminology and Caesar Cipher ; The key to the matter: generalizing the Caesar Cipher ; Multiplicative ciphers ; Affine ...

The story of Kryptos and the cryptanalyst who spent decades trying to solve the CIA sculpture greatest mystery.

The mathematics protecting communications since before the internet remain our strongest defense against machine-speed ...

The U.S. Department of War (DoW) has announced plans to transition to post-quantum cryptography (PQC) to safeguard its systems against the risks posed by quantum computing. A new memorandum outlines ...

Together, they create an infrastructure layer designed for a world where attacks are automated, data is abundant and digital ...

Microsoft is killing off an obsolete and vulnerable encryption cipher that Windows has supported by default for 26 years following more than a decade of devastating hacks that exploited it and ...

Cryptographic coprocessors are nice, for the most part. These are small chips you connect over I2C or One-Wire, with a whole bunch of cryptographic features implemented. They can hash data, securely ...

For years, the conversation around quantum computing and cryptocurrency has been dominated by a single, breathless question: Will a quantum breakthrough kill Bitcoin? The fear is simple enough.

When the IBM PC was new, I served as the president of the San Francisco PC User Group for three years. That’s how I met PCMag’s editorial team, who brought me on board in 1986. In the years since that ...

Post-quantum security revolves around staying in the race because when quantum arrives, it won’t send a warning. Those who ...