Government agencies should not underestimate the bandwidth requirements of good security, a reader writes in response to an article on digital signatures. Ms Spencer should address the bandwidth ...

If you have sent any plaintext confidential emails to someone (most likely you did), have you ever questioned yourself about the mail being tampered with or read by anyone during transit? If not, you ...

A digital signature authenticates the sender of a message and provides the electronic equivalent of a tamper-proof seal that is broken if any data in the message were altered. Digital signatures use ...

Quantum digital signatures and key distribution represent a frontier in secure communications, harnessing the fundamental principles of quantum mechanics to safeguard digital transactions. Quantum ...

Google has launched quantum-safe digital signatures in its Cloud Key Management Service (Cloud KMS) for software-based keys. Google Cloud said the move is a response to risks posed by the advancement ...