SM4 GCM模式，不支持计算Authentication Tag吗？

[MaoJianwei]

对于下面这个测试例，输出的密文CipherText是正确的，但校验值Authentication Tag不正确

SM4-GCM Test Vectors

   Initialization Vector:   00001234567800000000ABCD
   Key:                     0123456789ABCDEFFEDCBA9876543210
   Plaintext:               AAAAAAAAAAAAAAAABBBBBBBBBBBBBBBB
                            CCCCCCCCCCCCCCCCDDDDDDDDDDDDDDDD
                            EEEEEEEEEEEEEEEEFFFFFFFFFFFFFFFF
                            EEEEEEEEEEEEEEEEAAAAAAAAAAAAAAAA
   Associated Data:         FEEDFACEDEADBEEFFEEDFACEDEADBEEFABADDAD2
   CipherText:              17F399F08C67D5EE19D0DC9969C4BB7D
                            5FD46FD3756489069157B282BB200735
                            D82710CA5C22F0CCFA7CBF93D496AC15
                            A56834CBCF98C397B4024A2691233B8D
   Authentication Tag:      83DE3541E4C2B58177E065A9BF7B62EC

[emmansun]

你可以参考cipher/gcm_sm4_test.go中TestSM4GCM的最后一组测试数据。