How does symmetric key encryption work with public-key encryption when securing a connection between browser and server? I know the Browser and server start off using asymmetric encryption then switch ...

What are cryptographic keys, and why should they be kept safe? A cryptographic key is a string of data that is used to encrypt data (to the data secret), decrypt data (to perform the reverse operation ...

This course covers the basic knowledge in understanding and using cryptography. The main focus is on definitions, theoretical foundations, and rigorous proofs of security, with some programming ...

At its core the PCI Data Security Standard is nothing more than a series of guidelines that constitute security best practices. But companies that institute programs to better protect cardholder data ...

Encryption is a term that many of us have come across, but what does it mean? To put it simply, encryption is the encoding of information. Various online services use it to keep your data private and ...

Public Key Cryptography offers ultimate security being based asymmetric keys; however it does have a specific purpose and is often not a replacement of symmetric crypto algorithms like AES. This ...

The rash of security problems on the Internet and the Web demonstrates that lack of trust is limiting the use of the Internet for business and commerce. For the Internet to realize its potential as a ...

Once quantum computers become a commercial reality, they will change the ground rules for cryptography. Here's how quantum cryptography would work, and an explanation of the benefits and pitfalls of ...