Data cryptographic techniques; data integrity mechanism using a cryptographic check function employing a block cipher algorithm
Описание (англ.):
Presents a method of using a key and n-bit algorithms in block cipher mode to calculate an m-bit cryptographic check value used as a data integrity mechanism to detect that data has not been altered in an unauthorised manner. The degree of integrity of the data is dependent on the key length and its secrecy, on the nature of thecryptographic algorithm, and on m, the length of the check value. Can be applied to the security services of any security architecture, process, or application. References. ISO 8731-1; ANSI X3. 92; ANSI X9. 9.