{"record":{"id":"9ba82b852664672a","repo":"XTLS/Xray-core","slug":"failed-to-generate-serial-number","errorCode":null,"errorMessage":"failed to generate serial number","messagePattern":"failed to generate serial number","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"common/protocol/tls/cert/cert.go","lineNumber":139,"sourceCode":"\tparentKey = selfKey\n\tif parent != nil {\n\t\tif _, e := asn1.Unmarshal(parent.PrivateKey, &ecPrivateKey{}); e == nil {\n\t\t\tpKey, err = x509.ParseECPrivateKey(parent.PrivateKey)\n\t\t} else if _, e := asn1.Unmarshal(parent.PrivateKey, &pkcs8{}); e == nil {\n\t\t\tpKey, err = x509.ParsePKCS8PrivateKey(parent.PrivateKey)\n\t\t} else if _, e := asn1.Unmarshal(parent.PrivateKey, &pkcs1PrivateKey{}); e == nil {\n\t\t\tpKey, err = x509.ParsePKCS1PrivateKey(parent.PrivateKey)\n\t\t}\n\t\tif err != nil {\n\t\t\treturn nil, errors.New(\"failed to parse parent private key\").Base(err)\n\t\t}\n\t\tparentKey = pKey\n\t}\n\n\tserialNumberLimit := new(big.Int).Lsh(big.NewInt(1), 128)\n\tserialNumber, err := rand.Int(rand.Reader, serialNumberLimit)\n\tif err != nil {\n\t\treturn nil, errors.New(\"failed to generate serial number\").Base(err)\n\t}\n\n\ttemplate := &x509.Certificate{\n\t\tSerialNumber:          serialNumber,\n\t\tNotBefore:             time.Now().Add(time.Hour * -1),\n\t\tNotAfter:              time.Now().Add(time.Hour),\n\t\tKeyUsage:              x509.KeyUsageKeyEncipherment | x509.KeyUsageDigitalSignature,\n\t\tExtKeyUsage:           []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},\n\t\tBasicConstraintsValid: true,\n\t}\n\n\tparentCert := template\n\tif parent != nil {\n\t\tpCert, err := x509.ParseCertificate(parent.Certificate)\n\t\tif err != nil {\n\t\t\treturn nil, errors.New(\"failed to parse parent certificate\").Base(err)\n\t\t}\n\t\tparentCert = pCert","sourceCodeStart":121,"sourceCodeEnd":157,"githubUrl":"https://github.com/XTLS/Xray-core/blob/7d214f8b094f75322fa3990f8aadad1c912f24f5/common/protocol/tls/cert/cert.go#L121-L157","documentation":"Error \"failed to generate serial number\" thrown in XTLS/Xray-core.","triggerScenarios":"Thrown at common/protocol/tls/cert/cert.go:139 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"7d214f8b094f75322fa3990f8aadad1c912f24f5","analyzedAt":"2026-08-15T14:26:24.325Z","schemaVersion":2},"datasetVersion":"2026-08-15T22:17:37.221Z"}