3GPP: ipsec-3gpp，SIP ESP解码

ipsec-3gpp

最后终于知道CKim 是从哪里来的了，是从S-CSCF 来得。

在wireshark中设置key时，如果时16进制的key，需要在前面加0x；

如果抓到的包里有authentication 算法和key，但是再wireshark设置SA时不加authentication和key，数据可以解出来，但是wireshark不能正常解析数据。

RFC 3329, “Security Mechanism Agreement for the Session Initiation Protocol (SIP)”

In addition to these mechanism-names, “ipsec-3gpp” mechanism-name is also registered (see Appendix A)

Appendix A. Syntax of ipsec-3gpp

This appendix extends the security agreement framework described in this document with a new security mechanism: “ipsec-3gpp”. This security mechanism and its associated parameters are used in the 3GPP IP Multimedia Subsystem [12].

标准

RFC 3329, “Security Mechanism Agreement for the Session Initiation Protocol (SIP)”

3GPP： 24.228： Signalling flows for the IP multimedia call control based on Session Initiation Protocol (SIP