Cryptography is the art of encrypting and decrypting data. Encryption is the process of encoding unencrypted data, or plaintext, into encrypted data, or ciphertext, to disguise the data and make it ...

I'm trying to find a short-cut explanation to a simple question before I get more involved in the details. I've always gathered that for the same bit size in the cypher block, a symmetric algorithm is ...

Understand the crypto concepts behind the modern internet security infrastructure, from digital signatures and transport layer security to blockchains and Bitcoin. Cryptography grows ever more ...

An encryption method that uses the same private (secret) key at both ends of the transmission. Contrast with asymmetric cryptography, which uses a public and private key. See secret key cryptography.

For those who want to organize the differences between symmetric and asymmetric encryption, personal data and retained ...

RC4 is a symmetric cryptosystem, invented in 1987 by MIT cryptographer Ronald Rivest, who went on to found RSA Security. The algorithm has several known flaws, but it is still widely used. RC4 is also ...