The New Web of Trust PGP is based on an idea called public- key cryptography.

Writer gives a brief history of Diffie-Hellman public key cryptography.

The standard weds hardware-based authentication with public key cryptography- asetof tools that's extremely difficult to compromise.

The State of Crypto PGP, first released in 1991, uses a form of encryption known as public- key cryptography.

Using what is perhaps best described as 'magic maths', public key cryptography lets people encode data with a key which cannot then decode it.

Thursday's speakers will include Dr. Ralph C. Merkle, a co-inventor of public key cryptography who works at Xerox PARC and specializes in computational nanotechnology.

Diffie is one of the inventors of the Diffie-Hellmankey exchange, a cryptographic protocol that enabled public key cryptography and helped make strong cryptography mainstream.