DEFINITION of 'Warranty'. A type of guarantee that a manufacturer or similar party makes regarding the condition of its product. It also refers to the terms and situations in which repairs or exchanges will be made in the event that the product does not function as originally described or intended. Next Up.
RSA is an algorithm used by modern computers to encrypt and decrypt messages. It is an asymmetric cryptographic algorithm.
The RSA system is the most commonly used encryption and authentication algorithm, and is included as a part of Cisco IOS. To use the RSA system, a network host generates a pair of keys. One is called the public key, and the other is called the private key. The Public key is given to anyone who wants to send encrypted data to the host. The Private key is never shared.