Section: 9.9.3.4 Authentication response parameter
Content: The purpose of the Authentication response parameter information element is to provide the network with the authentication response calculated in the USIM. The Authentication response parameter information element is coded as shown in figure 9.9.3.4.1 and table 9.9.3.4.1. The Authentication response parameter is a type 4 information element with a minimum length of 6 octets and a maximum length of 18 octets. In an EPS authentication challenge, the response calculated in the USIM (RES) is minimum 4 octets and may be up to 16 octets in length. In a 5G AKA authentication challenge, the response calculated in the ME (RES*) is 16 octets in length. Figure 9.9.3.4.1: Authentication response parameter information element Table 9.9.3.4.1: Authentication response parameter information element