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 ...

You can add a signature to a Google Doc with the built-in drawing tool. You can also use an add-on to add signatures to your document, or request them. Add-ons can be safer if they use encryption and ...

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 ...

NIST has shared standards for general encryption and digital signatures and has called on organisations to transition as soon as possible. After years of testing, the US National Institute of ...

A signature should be small. This article considers a DS implementation example for binary file integrity checking in Linux (64-bit ELF). We will use a direct DS when only a sender and a recipient are ...

The exchange and storage of information has emerged as a crucial aspect of technological, economic and human progress in today's society. Computer aided systems help to administer this information ...