Asymmetric-key algorithms use a combination of private and public keys while symmetric algorithms use only private ones, commonly referred to as secret keys.

ASC X9 has released a new standard, X9.24-3, that allows the use of the AES DUKPT algorithm to enhance security in retail financial transactions.

The method is a symmetric key algorithm, so it has the usual problem of secure key distribution. All three key lengths have been approved by the NSA for secret information and the 192-bit and 256 ...

For example, a smart thermostat that sends usage data to the service operator must be able to protect information from digital eavesdropping. The data plane part of the previously mentioned protocols ...

The file data is then encrypted with a symmetric algorithm called as DESX. Encrypting File System (EFS) The key used for these kinds of symmetric encryption is called as File Encryption Key (or FEK).

The US now has four post-quantum cryptographic algorithms it plans to make part of a new set of public-key cryptography standards by 2024.