{"record":{"id":"5eeadd208c0a77c9","repo":"XTLS/Xray-core","slug":"invalid-fingerprint","errorCode":null,"errorMessage":"invalid \"fingerprint\": ","messagePattern":"invalid \"fingerprint\": ","errorType":"validation","errorClass":null,"httpStatus":null,"severity":"error","filePath":"infra/conf/transport_security.go","lineNumber":182,"sourceCode":"\t\t\tsn = strings.ToLower(sn)\n\t\t\tif strings.HasSuffix(sn, \".ru\") || strings.HasSuffix(sn, \".ir\") || strings.HasSuffix(sn, \".cn\") ||\n\t\t\t\tstrings.Contains(sn, \"apple\") || strings.Contains(sn, \"icloud\") || strings.Contains(sn, \"microsoft\") {\n\t\t\t\terrors.LogWarning(context.Background(), `REALITY: Choosing \"`, sn, `\" as the target will increase the likelihood of your server's IP being blocked by the GFW`)\n\t\t\t}\n\t\t}\n\n\t\tconfig.LimitFallbackUpload = new(reality.LimitFallback)\n\t\tconfig.LimitFallbackUpload.AfterBytes = c.LimitFallbackUpload.AfterBytes\n\t\tconfig.LimitFallbackUpload.BytesPerSec = c.LimitFallbackUpload.BytesPerSec\n\t\tconfig.LimitFallbackUpload.BurstBytesPerSec = c.LimitFallbackUpload.BurstBytesPerSec\n\t\tconfig.LimitFallbackDownload = new(reality.LimitFallback)\n\t\tconfig.LimitFallbackDownload.AfterBytes = c.LimitFallbackDownload.AfterBytes\n\t\tconfig.LimitFallbackDownload.BytesPerSec = c.LimitFallbackDownload.BytesPerSec\n\t\tconfig.LimitFallbackDownload.BurstBytesPerSec = c.LimitFallbackDownload.BurstBytesPerSec\n\t} else {\n\t\tconfig.Fingerprint = strings.ToLower(c.Fingerprint)\n\t\tif config.Fingerprint == \"unsafe\" || config.Fingerprint == \"hellogolang\" {\n\t\t\treturn nil, errors.New(`invalid \"fingerprint\": `, config.Fingerprint)\n\t\t}\n\t\tif tls.GetFingerprint(config.Fingerprint) == nil {\n\t\t\treturn nil, errors.New(`unknown \"fingerprint\": `, config.Fingerprint)\n\t\t}\n\t\tif len(c.ServerNames) != 0 {\n\t\t\treturn nil, errors.New(`non-empty \"serverNames\", please use \"serverName\" instead`)\n\t\t}\n\t\tif c.Password != \"\" {\n\t\t\tc.PublicKey = c.Password\n\t\t}\n\t\tif c.PublicKey == \"\" {\n\t\t\treturn nil, errors.New(`empty \"password\"`)\n\t\t}\n\t\tif config.PublicKey, err = base64.RawURLEncoding.DecodeString(c.PublicKey); err != nil || len(config.PublicKey) != 32 {\n\t\t\treturn nil, errors.New(`invalid \"password\": `, c.PublicKey)\n\t\t}\n\t\tif len(c.ShortIds) != 0 {\n\t\t\treturn nil, errors.New(`non-empty \"shortIds\", please use \"shortId\" instead`)","sourceCodeStart":164,"sourceCodeEnd":200,"githubUrl":"https://github.com/XTLS/Xray-core/blob/7d214f8b094f75322fa3990f8aadad1c912f24f5/infra/conf/transport_security.go#L164-L200","documentation":"Error \"invalid \"fingerprint\": \" thrown in XTLS/Xray-core.","triggerScenarios":"Thrown at infra/conf/transport_security.go:182 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"}