The commonly used RSA encryption algorithm can now be cracked by a quantum computer with only 100,000 qubits, but the technical challenges to building such a machine remain numerous ...

Researchers from Tohoku University, CASA at Ruhr University Bochum, and NTT Social Informatics Laboratories have made a significant breakthrough in computer security with the development of a powerful ...

A new global survey reveals a dangerous gap in preparation for the quantum computing threat that might only be three years away.

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 ...