The present document is one of three, which between them form the entire specification of the example algorithms, entitled:

• 3GPP TS 35.231: "Specification of the Tuak algorithm set: A second example algorithm set for the 3GPP authentication and key generation functions f1, f1*, f2, f3, f4, f5 and f5*;
  Document 1: Algorithm specification ".
• 3GPP TS 35.232: "Specification of the Tuak algorithm set: A second example algorithm set for the 3GPP authentication and key generation functions f1, f1*, f2, f3, f4, f5 and f5*;
  Document 2: Implementers' test data".
• 3GPP TS 35.233: "Specification of the Tuak algorithm Set: A second example algorithm set for the 3GPP authentication and key generation functions f1, f1*, f2, f3, f4, f5 and f5*;
  Document 3: Design conformance test data".

The present document and the other Technical Specifications in the series, TS 35.232 and TS 35.233 contain an example set of algorithms which could be used as the authentication and key generation functions f1, f1*, f2, f3, f4, f5 and f5* for 3GPP systems. All seven functions are operator-specifiable rather than being fully standardised and other algorithms could be envisaged.