F2:D7:5E:F5:CC:C1的密码是多少?
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发布时间：2022-04-26 02:24
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热心网友
时间：2022-06-20 01:26
协议分析：获取各类登录会话密钥
我们知道QQ的一些会话密钥是在登录过程中生成的，尤其是Session Key，有了它便可以解密出聊天文本内容。本文主要是了解一下QQ的加密机制，首先是用嗅探工具Wireshark 捕获本地发至8000端口的UDP数据包，然后使用 QQCrypter 工具对各类文本进行加解密分析。
帐号资料
QQ号码（HEX）：739317986 2C 11 18 E2
QQ密码 MD5 一次密文：D1 C2 DC FC BF D4 1C E1 10 3A 25 47 5B F7 A5
QQ密码 MD5 二次密文：17 05 FB D8 1D 0D B4 37 79 7E 55 75 6C B8 E8 D2
IP地址（HEX）：192.168.1.101 C0 A8 01 65
数据包分析
密钥A：
02 // 命令类别
1C 27 // QQ2010 Beta3版本号
00 91
46 60
2C 11 18 E2 // QQ号码
02 00 00 00 01 01 01 00 00 00
3E 12 2D 44 39 61 C5 34 80 7E D1 26 AD 30 50 29 //密钥A
6B 1C 4B 2C 30 0B 4C 56 90 14 32 56 F3 AF 69 20 // 以下蓝色内容为密文
62 C0 80 80 DE 26 CE EA E6 E6 8C BE F5 8A E7 45
87 F1 BD AC 59 0E 87 47 1D FE 4E 46 02 51 5D 00
03
用TEA解密如下：
00 01 00 00 08 04 01 E0 00 00 03 20 00 00 00 01
00 00 0B 17 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
密钥B：
02
1C 27
00 DD
16 B2
2C 11 18 E2
02 00 00 00 01 01 01 00 00 00
33 BA 7C E2 A1 C2 B4 8E DC 8D 19 49 2E 54 D6 23 //密钥B
// 以下蓝色内容为密文
93 29 E2 EA 3E 02 DE D2 2D 7C 6D 70 DB 25 F5 74
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
03
用密钥B （33 BA 7C E2 A1 C2 B4 8E DC 8D 19 49 2E 54 D6 23）经TEA算法解密，内容如下：
00 DE 00 01 00 00 08 04 01 E0
00 00 03 20 00 00 00 01 00 00 0B 17
00 38
53 5E 98 F6 D7 43 46 75 8F 78 8A 60 FB 8E D7 4A
5C 4A 4C 42 A2 A2 C1 37 8D 21 55 CC B6 26 5F 02
AE 1C 87 79 23 9B FD CE 96 28 82 E0 AB 08 28 FA
C3 9C B0 7C 76 5C F5 F5
00 78 //0x78表示十进制数值 120
D5 FE 11 59 59 04 90 82 BA 36 50 54 4D 49 44 B8 //120个字节的开始块
22 72 00 BA 2D F3 5C 4C 3F B6 45 B1 D3 16 1C A9 4D 12 33 B0 79 11 BB 68 79 6E 2E 1B 1C E1 C9 F8 19 4B F1 35 AA EB 62 F2 D7 77 48 70 1D B4 40 CB 85 F8 74 15 5E 6C 32 9F 07 E4 B0 2A 61 35 4B 54 CC 85 F4 EA 6C 5A 42 F8 DB 18 A3 8F 9B 42 AD 5E 9A 5E FE 4C 18 71 2A 33 6A E9 D1 9F CE 0F DA 99 ED 65 F8 F6 E2 0D 66 //120个字节的结束块
00 14 82 FE 87 6D 6D 10 52 50 50 CD 61 98 54 F7 2F 82 EE 6A EB D5 01 77 2E 01 7F 5D 41 8F 00 10 8D CD 83 D5 BB B4 1F 4C CA 15 5C 38 D4 69 F1 30 02 66 45 A3 96 00 10 49 1F 22 31 08 12 D4 98 70 1F A3 63 9F 4B 56 AB 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
密钥C和D：
我们用QQ密码 MD5 二次密文（17 05 FB D8 1D 0D B4 37 79 7E 55 75 6C B8 E8 D2）作为密钥，对上面的120个字节 数据块作解密处理，可以得到密文：
52 40 0C 93 00 01 2C 11 18 E2 00 00 03 20 00 00
00 01 00 00 0B 17 00 00 00
D1 C2 DC FC BF D4 1C E1 10 3A 25 47 5B F7 A5 //这个16位的数据正好是QQ密码
//经过MD5一次加密的密文
4C 75 25 59 00 00 00 00 00 00 00 00 00 00 00 00
00 3A FF 40 28 00 00 00 00 00 00 00 00 00 10
08 97 8A 39 E8 96 72 49 AC 26 E6 8B 63 E4 D7 44 //这个16位的数据是密钥 C
27 1E 92 DE F4 F4 9A 68 B2 E4 8D 84 BC EC 42 41 //这个16位的数据是密钥 D
密钥E和F：
