Ua安全协议标识符 是一个5个字节的 字符串(string).
第1个字节，表示， 制定该Ua安全协议的 组织。
后面的4个字节，则指 该组织 定义的某种安全协议。

组织者字节
01 = 3GPP
02 = 3GPP2
03 = Open Mobile Alliance
04 = GSMA

01 00 00 00 00 = 按照TS 33.221定义的安全协议
01 00 00 00 01 = TS 33.246
01 00 00 00 02 = TS 24.109 定义的 Ua security protocol HTTP digest authentication
01 00 00 00 03 = TS 26.237 定义的 Ua security protocols used with HTTP-based security procedures for
MBMS user services
01 00 00 00 04 = TS 26.237定义的 Ua security protocols used with SIP-based security procedures for
MBMS user services

01 00 00 01 00 = Generation of TMPI
0x01,0x00,0x01,yy,zz = TS 33.222定义的 Ua security protocol for “Shared key-based UE authentication with
certificate-based NAF authentication” 或者 “Shared key-based mutual authentication between UE and NAF” for TLS 1.2 (see above for Ua security protocol identifier for TLS 1.3 with shared keys)
这里， “yy,zz” 是保护机制 CipherSuite code, 定义在 IANA 加密套件的TLS CipherSuites的定义的值。 RFC 8446
比如， The TLS 1.2 CipherSuite TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 的值是 { 0xC0,0x2B }

( 0x01,0x00,0x02,yy,zz )