├── .gitignore ├── .idea ├── .gitignore ├── douyin_xb.iml ├── modules.xml └── vcs.xml ├── LICENSE ├── README.md ├── go.mod ├── xb.go └── xb_test.go /.gitignore: -------------------------------------------------------------------------------- 1 | ### JetBrains template 2 | # Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio, WebStorm and Rider 3 | # Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839 4 | 5 | # User-specific stuff 6 | .idea/**/workspace.xml 7 | .idea/**/tasks.xml 8 | .idea/**/usage.statistics.xml 9 | .idea/**/dictionaries 10 | .idea/**/shelf 11 | 12 | # AWS User-specific 13 | .idea/**/aws.xml 14 | 15 | # Generated files 16 | .idea/**/contentModel.xml 17 | 18 | # Sensitive or high-churn files 19 | .idea/**/dataSources/ 20 | .idea/**/dataSources.ids 21 | .idea/**/dataSources.local.xml 22 | .idea/**/sqlDataSources.xml 23 | .idea/**/dynamic.xml 24 | .idea/**/uiDesigner.xml 25 | .idea/**/dbnavigator.xml 26 | 27 | # Gradle 28 | .idea/**/gradle.xml 29 | .idea/**/libraries 30 | 31 | # Gradle and Maven with auto-import 32 | # When using Gradle or Maven with auto-import, you should exclude module files, 33 | # since they will be recreated, and may cause churn. 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The text should be enclosed in the appropriate 184 | comment syntax for the file format. We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright [2024] [smalls0098] 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # xb 2 | douyin X-Bogus 3 | -------------------------------------------------------------------------------- /go.mod: -------------------------------------------------------------------------------- 1 | module github.com/smalls0098/xb 2 | 3 | go 1.18 4 | -------------------------------------------------------------------------------- /xb.go: -------------------------------------------------------------------------------- 1 | package xb 2 | 3 | import ( 4 | "crypto/md5" 5 | "crypto/rc4" 6 | "encoding/base64" 7 | "encoding/binary" 8 | "errors" 9 | ) 10 | 11 | var b64 = base64.NewEncoding("Dkdpgh4ZKsQB80/Mfvw36XI1R25-WUAlEi7NLboqYTOPuzmFjJnryx9HVGcaStCe") 12 | 13 | func Encode(params, postData string, userAgent string, timestamp uint32) string { 14 | uaKey := []byte{0, 1, 14} 15 | listKey := []byte{255} 16 | fixed := uint32(3845494467) 17 | md5Params := stdMd5Enc(stdMd5Enc([]byte(params))) 18 | md5PostData := stdMd5Enc(stdMd5Enc([]byte(postData))) 19 | md5UA := stdMd5Enc([]byte(base64.StdEncoding.EncodeToString(stdRc4Enc(uaKey, []byte(userAgent))))) 20 | 21 | // 等待加密列表 22 | list := make([]byte, 0, 19) 23 | list = append(list, byte(64)) 24 | list = append(list, uaKey...) 25 | list = append(list, md5Params[14:16]...) 26 | list = append(list, md5PostData[14:16]...) 27 | list = append(list, md5UA[14:16]...) 28 | list = binary.BigEndian.AppendUint32(list, timestamp) 29 | list = binary.BigEndian.AppendUint32(list, fixed) 30 | list = append(list, xorKey(list)) 31 | 32 | enc := make([]byte, 0, 21) 33 | enc = append(enc, byte(2)) 34 | enc = append(enc, listKey...) 35 | enc = append(enc, stdRc4Enc(listKey, list)...) 36 | 37 | return b64.EncodeToString(enc) 38 | } 39 | 40 | type Info struct { 41 | Logo byte 42 | Key []byte 43 | ParamsHash []byte 44 | DataHash []byte 45 | UAHash []byte 46 | Ts uint32 47 | Fixed uint32 48 | XorHash byte 49 | } 50 | 51 | func Decode(xb string) (*Info, error) { 52 | dec, err := b64.DecodeString(xb) 53 | if err != nil { 54 | return nil, err 55 | } 56 | if len(dec) != 21 { 57 | return nil, errors.New("xb no 21") 58 | } 59 | dec = dec[2:] 60 | dec = stdRc4Enc([]byte{255}, dec) 61 | return &Info{ 62 | Logo: dec[0], 63 | Key: dec[1:4], 64 | ParamsHash: dec[4:6], 65 | DataHash: dec[6:8], 66 | UAHash: dec[8:10], 67 | Ts: binary.BigEndian.Uint32(dec[10:14]), 68 | Fixed: binary.BigEndian.Uint32(dec[14:18]), 69 | XorHash: dec[18], 70 | }, nil 71 | } 72 | 73 | func stdMd5Enc(data []byte) []byte { 74 | hash := md5.New() 75 | hash.Write(data) 76 | return hash.Sum(nil) 77 | } 78 | 79 | func stdRc4Enc(key []byte, plainText []byte) []byte { 80 | cipher, err := rc4.NewCipher(key) 81 | if err != nil { 82 | return nil 83 | } 84 | res := make([]byte, len(plainText)) 85 | cipher.XORKeyStream(res, plainText) 86 | return res 87 | } 88 | 89 | func rc4Enc(key []byte, plainText []byte) []byte { 90 | sBox := make([]byte, 256) 91 | for i := 0; i < 256; i++ { 92 | sBox[i] = byte(i) 93 | } 94 | 95 | index := byte(0) 96 | for i := 0; i < 256; i++ { 97 | k := key[i%len(key)] 98 | index = byte(uint32(index+sBox[i]+k) % 256) 99 | temp := sBox[i] 100 | sBox[i] = sBox[index] 101 | sBox[index] = temp 102 | } 103 | 104 | index = byte(0) 105 | i := 0 106 | cipherText := make([]byte, 0) 107 | for _, ch := range plainText { 108 | i = (i + 1) % 256 109 | index = byte(uint32(index+sBox[i]) % 256) 110 | sBox[i], sBox[index] = sBox[index], sBox[i] 111 | keyStream := sBox[byte(uint32(sBox[i]+sBox[index])%256)] 112 | cipherText = append(cipherText, ch^keyStream) 113 | } 114 | return cipherText 115 | } 116 | 117 | func xorKey(list []byte) byte { 118 | if len(list) == 0 { 119 | return 0 120 | } 121 | if len(list) == 1 { 122 | return list[0] 123 | } 124 | key := list[0] 125 | for i := 1; i < len(list); i++ { 126 | key ^= list[i] 127 | } 128 | return key 129 | } 130 | -------------------------------------------------------------------------------- /xb_test.go: -------------------------------------------------------------------------------- 1 | package xb 2 | 3 | import ( 4 | "testing" 5 | "time" 6 | ) 7 | 8 | func Test_Encode(t *testing.T) { 9 | ts := time.Now().Unix() 10 | ts = 1710927309 11 | res := Encode( 12 | "device_platform=webapp&aid=6383&channel=channel_pc_web&aweme_id=7346145148188904742&pc_client_type=3&version_code=190500&version_name=19.5.0&cookie_enabled=true&screen_width=1792&screen_height=1120&browser_language=zh-CN&browser_platform=MacIntel&browser_name=Chrome&browser_version=104.0.5112.102&browser_online=true&engine_name=Blink&engine_version=104.0.5112.102&os_name=Mac+OS&os_version=10.15.7&cpu_core_num=12&device_memory=8&platform=PC&downlink=9.6&effective_type=4g&round_trip_time=0&webid=7209940127916459575&msToken=191ZZJ5jsfzviU7JMotGDULg3e8hVIh9B9CqqeNmFOMF7qHrbmi_44Vri00ssGlSI46oyGcOPMVtIFqdze7bYWGm40CDtmqJHV_YterqNVoC220dvjMP", 13 | "", 14 | "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) douyin/3.4.0 Chrome/104.0.5112.102 Electron/20.1.0-tt.4.release.douyin.155 TTElectron/20.1.0-tt.4.release.douyin.155 Safari/537.36 awemePcClient/3.4.0 buildId/11509980 osName/Mac", 15 | uint32(ts), 16 | ) 17 | t.Log(res, res == "DFSzswVO/72ANVartLGTYN7TlqCM") 18 | } 19 | 20 | func Test_Decode(t *testing.T) { 21 | res, err := Decode("DFSzswVO/72ANVartLGTYN7TlqCM") 22 | if err != nil { 23 | t.Fatal(err) 24 | } 25 | t.Logf("%+v", res) 26 | } 27 | --------------------------------------------------------------------------------