{
  "id": "certificate-usage/floating-sauteeing-noodle-subagent-a59662e",
  "slug": "floating-sauteeing-noodle-subagent-a59662e",
  "title": "Session: floating-sauteeing-noodle-subagent-a59662e — 2026-02-04",
  "type": "source",
  "project": "certificate-usage",
  "date": "2026-02-04",
  "started": "2026-02-04T16:13:36.032000+00:00",
  "ended": "2026-02-04T16:15:24.409000+00:00",
  "model": "claude-haiku-4-5-20251001",
  "cwd": "/Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage",
  "git_branch": "FHIR-1996_track-ecc-rsa-certificate-usage",
  "permission_mode": "",
  "user_messages": 1,
  "tool_calls": 22,
  "tools_used": [
    "Glob",
    "Bash",
    "Read",
    "Grep"
  ],
  "is_subagent": true,
  "wikilinks_out": [],
  "body_text": "Project: certificate-usage · Branch: FHIR-1996_track-ecc-rsa-certificate-usage · Mode:  · Model: claude-haiku-4-5-20251001\n\nStats: 1 user messages, 22 tool calls, tools used: Glob, Bash, Read, Grep.\n\nConversation\n\nTurn 1 — User\n\nI need to understand the current certificate tracking implementation to plan a simplification where we log the raw JWA string instead of mapping it.\n\nPlease explore and document:\n\n1. JWSUtils.deriveJWAFromCertificate in src/modules/gematik-crypto:\n   - What does this function return? (e.g., \"BP256R1\", \"RS256\", \"ES256\")\n   - Where is it implemented?\n\n2. CertificateAnalyzer usage:\n   - Where is CertificateAnalyzer.analyzeCertificate currently called?\n   - What does the caller expect to receive?\n   - Check both production code and tests\n\n3. JWAMapper dependencies:\n   - Is JWAMapper imported or used anywhere else besides adapter.ts?\n   - Are there any other references to the CertificateInfo type?\n\n4. Datadog tracking data format:\n   - In src/modules/kbv-ti-connect/main/ti-connect.ts, how is the certificate data sent to Datadog?\n   - What fields are currently logged? (certificateType, curveName, etc.)\n\nFocus on understanding the current flow and what needs to change. Be thorough - check imports, exports, and test files.\n\nTurn 1 — Assistant\n\nI'll explore the codebase to understand the certificate tracking implementation. Let me start with a comprehensive search.\n\nTools used:\n\n- Glob: src/modules/gematik-crypto//.ts\n\nTools used:\n\n- Glob: src/modules/kbv-ti-connect//.ts\n\nTools used:\n\n- Bash: find /Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage -type f -name \".ts\" | head -20\n\nTool results:\n\n  → result (ok): /Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/tools/cli-modules/vitest.config.ts\n/Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/tools/cli-modules/src/types.ts\n/Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/tools/cli-modules/src/__tests__/setup.test.ts\n/Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/tools/cli-modules/src/ddv-modules.ts\n/Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-cert\n…(truncated, 1758 more chars)\n\nTool results:\n\n  → result (ok): /Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules/gematik-crypto/constants/events.ts\n/Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules/gematik-crypto/constants/module.ts\n/Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules/gematik-crypto/index.ts\n/Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules/gematik-crypto/main/__tests__/cryptoEngine.test.ts\n/Users/USER/wor\n…(truncated, 10443 more chars)\n\nTool results:\n\n  → result (ok): /Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules/kbv-ti-connect/constants/events.ts\n/Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules/kbv-ti-connect/constants/module.ts\n/Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules/kbv-ti-connect/constants/types.ts\n/Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules/kbv-ti-connect/helpers/__tests__/cardBinaryParser.test.t\n…(truncated, 13539 more chars)\n\nNow let me search for the specific files and functions mentioned:\n\nTools used:\n\n- Read: /Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules/gematik-crypto/services/node/jose/JWSUtils.ts\n\nTool results:\n\n  → result (ok): 1→import { Certificate } from 'pkijs'\n     2→import  as Asn1 from 'asn1js'\n     3→\n     4→enum JWAlgorithms {\n     5→  HMAC = 'HS', // There is no MAC expected, so keeping here for the compatibility\n     6→  'RSASSA-PKCS1-v1_5' = 'RS',\n     7→  ECDSA = 'ES',\n     8→  'RSASSA-PSS' = 'PS',\n     9→}\n    10→\n    11→type JWSAlgorithms = 'HMAC' | 'RSASSA-PKCS1-v1_5' | 'ECDSA' | 'RSASSA-PSS'\n    12→export class JWSUtils {\n    13→  static concatenateECDSASignature(signature: string, outputLength: numbe\n…(truncated, 5381 more chars)\n\nTools used:\n\n- Read: /Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules/gematik-crypto/services/utils/jwaMapper.ts\n\nTool results:\n\n  → result (ok): 1→/\n     2→  Maps JWA (JSON Web Algorithm) strings to certificate tracking format\n     3→  Used to convert JWSUtils output to Datadog tracking events\n     4→ /\n     5→/\n     6→  Certificate information extracted from JWA algorithm\n     7→  @property certificateType - The type of certificate: ECC (Elliptic Curve Cryptography) or RSA\n     8→  @property curveName - The elliptic curve name (e.g., 'brainpoolP256r1', 'P-256').\n     9→                        Only present for ECC certificates\n…(truncated, 2162 more chars)\n\nTools used:\n\n- Read: /Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules/kbv-ti-connect/main/ti-connect.ts\n\nTool results:\n\n  → result (ok): 1→import { ipcManager } from '@core/ipc-manager'\n     2→import { sendPreferences } from '@core/app/main/helpers/preferences-helper'\n     3→import { TrackingEvent } from '@core/monitoring'\n     4→\n     5→import { CertificateAnalyzer } from '@module/gematik-crypto'\n     6→import { TiEnvRepository } from '@module/gematik-ti-environment/services/tiEnvRepository'\n     7→import { kbvTiConnectLogger } from '@module/kbv-ti-connect/services/logger'\n     8→import tiConnect from '@module/kbv-ti-connect/ser\n…(truncated, 9718 more chars)\n\nNow let me search for CertificateAnalyzer and where it's used:\n\nTools used:\n\n- Grep: class CertificateAnalyzer in /Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules/gematik-crypto\n\nTools used:\n\n- Grep: CertificateAnalyzer in /Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules/gematik-crypto\n\nTool results:\n\n  → result (ok): Found 1 file\nsrc/modules/gematik-crypto/services/crypto-adapter/adapter.ts\n\nTool results:\n\n  → result (ok): Found 1 file\nsrc/modules/gematik-crypto/services/crypto-adapter/adapter.ts\n\nTools used:\n\n- Grep: JWAMapper in /Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules\n\nTool results:\n\n  → result (ok): Found 4 files\nsrc/modules/gematik-crypto/services/utils/__tests__/jwaMapper.test.ts\nsrc/modules/gematik-crypto/services/utils/jwaMapper.ts\nsrc/modules/gematik-crypto/services/crypto-adapter/adapter.ts\nsrc/modules/gematik-crypto/index.ts\n\nLet me read the adapter file to see the CertificateAnalyzer implementation:\n\nTools used:\n\n- Read: /Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules/gematik-crypto/services/crypto-adapter/adapter.ts\n\nTool results:\n\n  → result (ok): 1→import { X509Certificate } from 'node:crypto'\n     2→import { JWE, JWS as NodeJWS } from '@doctolib/node-jose'\n     3→import { IOptions } from 'soap'\n     4→\n     5→import { CryptoEngine } from '@module/gematik-crypto/services/crypto-adapter/crypto-engine'\n     6→import { CustomSoapClientOptions } from '@module/gematik-crypto/services/node/tls/customSoapClientOptions'\n     7→import { HttpsFetch as DoctoCryptHttpsFetch } from '@module/gematik-crypto/services/docto-crypt/tls/httpsFetch'\n     8→i\n…(truncated, 7958 more chars)\n\nTools used:\n\n- Read: /Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules/gematik-crypto/index.ts\n\nTool results:\n\n  → result (ok): 1→export { DoctoCryptExecutor } from './services/docto-crypt'\n     2→\n     3→export  from './services/crypto-adapter'\n     4→export { Pkcs12Adapter as Pkcs12 } from '@module/gematik-crypto/services/crypto-adapter/pkcs12Adapter'\n     5→export { KeystoreFile, type DialogOptionProperties } from '@module/gematik-crypto/services/node/keystore/keystoreFile'\n     6→export {\n     7→  LdapAdapter as LdapClient,\n     8→  type SearchOptions,\n     9→} from '@module/gematik-crypto/services/crypto-adapter/ld\n…(truncated, 528 more chars)\n\nNow let me check the tests to understand usage better:\n\nTools used:\n\n- Read: /Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules/gematik-crypto/services/utils/__tests__/jwaMapper.test.ts\n\nTool results:\n\n  → result (ok): 1→import { describe, expect, it } from 'vitest'\n     2→\n     3→import { JWAMapper } from '../jwaMapper'\n     4→\n     5→describe('JWAMapper', () => {\n     6→  describe('.mapJWAToCertificateInfo', () => {\n     7→    it('identifies RSA algorithms (RS family)', () => {\n     8→      expect(JWAMapper.mapJWAToCertificateInfo('RS256')).toEqual({\n     9→        certificateType: 'RSA',\n    10→      })\n    11→      expect(JWAMapper.mapJWAToCertificateInfo('RS384')).toEqual({\n    12→        certificateType:\n…(truncated, 2173 more chars)\n\nTools used:\n\n- Read: /Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules/gematik-crypto/services/node/jose/__tests_electron__/JWSUtils.test.ts\n\nTool results:\n\n  → result (ok): 1→import { JWSUtils } from '@module/gematik-crypto/services/node/jose/JWSUtils'\n     2→\n     3→describe('JWSUtils', () => {\n     4→  afterEach(() => {\n     5→    vi.clearAllMocks()\n     6→  })\n     7→\n     8→  const rsaCertificate =\n     9→    'MIIEljCCA36gAwIBAgIHAWMLSsvZvzANBgkqhkiG9w0BAQsFADCBhDELMAkGA1UE' +\n    10→    'BhMCREUxHzAdBgNVBAoMFmdlbWF0aWsgR21iSCBOT1QtVkFMSUQxMjAwBgNVBAsM' +\n    11→    'KUtvbXBvbmVudGVuLUNBIGRlciBUZWxlbWF0aWtpbmZyYXN0cnVrdHVyMSAwHgYD' +\n    12→    'VQQDDBdHRU0uS09\n…(truncated, 13415 more chars)\n\nNow let me check where JWAMapper is imported and used:\n\nTools used:\n\n- Bash: grep -r \"JWAMapper\\|CertificateInfo\" /Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src --include=\".ts\" | grep -v test | grep -v \".test.ts\"\n\nTools used:\n\n- Bash: grep -r \"CertificateAnalyzer\" /Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src --include=\".ts\" | head -20\n\nTool results:\n\n  → result (ok): /Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/core/network/main/debug-menu/helpers/electron-helpers.ts:import { CertificateInfo } from '../../../services/network-environment-diagnostic'\n/Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/core/network/main/debug-menu/helpers/electron-helpers.ts:  getPeerCertificate?: () => CertificateInfo | undefined\n/Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/core/network/ma\n…(truncated, 1863 more chars)\n\nTool results:\n\n  → result (ok): /Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules/kbv-ti-connect/main/__tests__/ti-connect.test.ts:import { CertificateAnalyzer } from '@module/gematik-crypto'\n/Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules/kbv-ti-connect/main/__tests__/ti-connect.test.ts:  CertificateAnalyzer: {\n/Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules/kbv-ti-connect/main/__tests__/ti-connect.test.ts:    mockAnal\n…(truncated, 614 more chars)\n\nLet me check the test file to see how CertificateAnalyzer is used:\n\nTools used:\n\n- Read: /Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules/kbv-ti-connect/main/__tests__/ti-connect.test.ts (1–150)\n\nTool results:\n\n  → result (ok): 1→import { Mock } from 'vitest'\n     2→\n     3→import { ipcManager } from '@core/ipc-manager'\n     4→import { sendPreferences } from '@core/app/main/helpers/preferences-helper'\n     5→import { sendCustomTrackingEventToObservability, TrackingEvent } from '@core/monitoring'\n     6→\n     7→import { CertificateAnalyzer } from '@module/gematik-crypto'\n     8→import { TiEnvRepository } from '@module/gematik-ti-environment/services/tiEnvRepository'\n     9→import { TiEnvValueSet } from '@module/gematik-\n…(truncated, 5664 more chars)\n\nLet me continue reading the test file:\n\nTools used:\n\n- Read: /Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules/kbv-ti-connect/main/__tests__/ti-connect.test.ts (150–400)\n\nTool results:\n\n  → result (ok): 150→    mockSendPreferences = vi.mocked(sendPreferences)\n   151→    mockTiConnectCallApi = vi.mocked(tiConnect.callApi)\n   152→    mockDecryptKeyStore = vi.mocked(decryptKeyStore)\n   153→    mockGetNewKeyStore = vi.mocked(getNewKeyStore)\n   154→    mockReadKeyStoreFromFile = vi.mocked(readKeyStoreFromFile)\n   155→    mockExtraLogParser = vi.mocked(extraLogParser)\n   156→    mockGetNestedKeys = vi.mocked(getNestedKeys)\n   157→    mockSendCustomTrackingEventToObservability = vi.mocked(sendCustomTr\n…(truncated, 11217 more chars)\n\nLet me continue and look for the test that uses CertificateAnalyzer:\n\nTools used:\n\n- Read: /Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules/kbv-ti-connect/main/__tests__/ti-connect.test.ts (400–600)\n\nTool results:\n\n  → result (ok): 400→\n   401→      expect(TiConnectRepository.settings?.useConnectorContextFromElectronSettings).toBe(true)\n   402→      expect(mockSendPreferences).toHaveBeenCalled()\n   403→\n   404→      expect(kbvTiConnectLogger.info).toHaveBeenCalledWith('TiConnectModule', {\n   405→        extra: 'mocked-log-string',\n   406→      })\n   407→      expect(mockExtraLogParser).toHaveBeenCalledWith({\n   408→        traceId: 'unknown',\n   409→        functionName: 'onTiConnectChangeModeListener',\n   410→        oper\n…(truncated, 9095 more chars)\n\nLet me search for any other references to understand the data flow better:\n\nTools used:\n\n- Bash: grep -r \"deriveJWAFromCertificate\\|getJWA\" /Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src --include=\".ts\" | grep -v test\n\nTool results:\n\n  → result (ok): /Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules/gematik-idp-authentication/services/IdpChallenge.ts:    const alg = await JWSUtils.getJWA(\n/Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules/gematik-crypto/services/crypto-adapter/adapter.ts:    const jwa = await JWSUtils.deriveJWAFromCertificate(certificate)\n/Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules/gematik-crypto/services/node/jose/J\n…(truncated, 622 more chars)\n\nTools used:\n\n- Bash: grep -r \"mapJWAToCertificateInfo\" /Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src --include=\".ts\" | grep -v test\n\nTool results:\n\n  → result (ok): /Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules/gematik-crypto/services/utils/jwaMapper.ts:  static mapJWAToCertificateInfo(jwa: string): CertificateInfo {\n/Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules/gematik-crypto/services/crypto-adapter/adapter.ts:    return JWAMapper.mapJWAToCertificateInfo(jwa)\n\nLet me check the IdpChallenge to see how getJWA is used:\n\nTools used:\n\n- Read: /Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules/gematik-idp-authentication/services/IdpChallenge.ts (1–100)\n\nTool results:\n\n  → result (ok): 1→import { createHash, randomBytes } from 'node:crypto'\n     2→\n     3→import ConfigurationService from '@module/kbv-ti-connect/services/configuration-service'\n     4→import { SIG_TYPE_ECC } from '@module/kbv-ti-connect/services/types'\n     5→import { signWithCardCertificate, readCardCertificate } from '@module/gematik-idp-authentication/services/connector'\n     6→import type {\n     7→  ChallengeJwt,\n     8→  CodeVerifierAndChallenge,\n     9→  SignatureVerificationAndEncryptionKey,\n    10→} from\n…(truncated, 4456 more chars)\n\nPerfect! Now let me create a comprehensive document summarizing the findings. Let me also check the recent commits to see what was changed:\n\nTools used:\n\n- Bash: git log --oneline -15\n\nTool results:\n\n  → result (ok): 5e9eb7ad9 refactor(FHIR-1996): Fix PR review issues for safe error handling and RSA certificate mapping\n8c23f5c41 Merge branch 'master' of https://github.com/doctolib/doctolib-pro-desktop into FHIR-1996_track-ecc-rsa-certificate-usage\nbb10862aa refactor(FHIR-1996): Remove unused TiCertificateConfigured tracking event\n78da4fa09 refactor(FHIR-1996): Fix import consistency and enhance test coverage\ne7aa76c8a feat(DITTO-4078): logging with lazy initialization and error aggregation (#6980)\n9e54598a3 \n…(truncated, 853 more chars)\n\nPerfect! Now I have all the information needed. Let me create a comprehensive exploration report.\n\nCertificate Tracking Implementation - Comprehensive Exploration Report\n\nBased on my thorough exploration of the codebase, here's the complete understanding of the current certificate tracking implementation:\n\n---\n\n1. JWSUtils.deriveJWAFromCertificate - Location & Output\n\nFile: /Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules/gematik-crypto/services/node/jose/JWSUtils.ts\n\nFunction Signature:\nstatic async deriveJWAFromCertificate(certificate: string): Promise<string>\n\nWhat it returns:\nThe function returns a JWA (JSON Web Algorithm) string representing the algorithm used by the certificate:\n\n- RSA algorithms: 'RS256', 'RS384', 'RS512', 'PS256', 'PS384', 'PS512'\n- ECC/ECDSA algorithms: 'ES256', 'ES384', 'ES512'\n- German TI standard (Brainpool): 'BP256R1'\n- Fallback: 'none' (when parsing fails or no algorithm found)\n\nImplementation Details (lines 83-118):\n- Uses pkijs library to parse base64-encoded X.509 certificates\n- Analyzes the public key algorithm from the certificate\n- For RSA keys: calls selectJWA with algorithm name and hash function (e.g., \"SHA-256\" → \"256\")\n- For ECC keys: calls selectJWA with algorithm name and named curve\n- Has special handling for BrainpoolP256R1 curve (OID 1.3.36.3.3.2.8.1.1.7) due to unsupported algorithm exception\n- Pure JavaScript implementation using pkijs (independent of crypto engine choice)\n\n---\n\n2. CertificateAnalyzer Usage\n\nFile: /Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules/gematik-crypto/services/crypto-adapter/adapter.ts\n\nImplementation (lines 156-171):\nexport class CertificateAnalyzer {\n  static async analyzeCertificate(certificate: string): Promise<CertificateInfoType> {\n    const jwa = await JWSUtils.deriveJWAFromCertificate(certificate)\n    return JWAMapper.mapJWAToCertificateInfo(jwa)\n  }\n}\n\nWhere it's called:\n\n1. Production Code - Main Usage:\n   - /Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules/kbv-ti-connect/main/ti-connect.ts (lines 104-137)\n   - Called in trackCertificateType() function after keystore decryption\n   - Fire-and-forget pattern - wrapped in try-catch that logs errors without throwing\n\n2. Test Code:\n   - /Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules/kbv-ti-connect/main/__tests__/ti-connect.test.ts\n   - Mocked for testing certificate tracking behavior\n   - Tests verify certificate info is sent to Datadog observability\n\nWhat the caller expects to receive:\ninterface CertificateInfo {\n  certificateType: 'ECC' | 'RSA'\n  curveName?: string  // Only present for ECC certificates\n}\n\nExample returns:\n- ECC: { certificateType: 'ECC', curveName: 'brainpoolP256r1' }\n- RSA: { certificateType: 'RSA' } (no curve)\n\n---\n\n3. JWAMapper Dependencies & Usage\n\nFile: /Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules/gematik-crypto/services/utils/jwaMapper.ts\n\nImports/Exports in the codebase:\n\n1. Exported from:\n   - /Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules/gematik-crypto/index.ts (line 10)\n          export { JWAMapper, type CertificateInfo as CertificateInfoType } from './services/utils/jwaMapper'\n\n2. Used in:\n   - adapter.ts - CertificateAnalyzer uses JWAMapper.mapJWAToCertificateInfo()\n   - Test file: jwaMapper.test.ts - comprehensive unit tests\n\n3. CertificateInfo type references:\n   - adapter.ts: imported as CertificateInfoType\n   - jwaMapper.ts: defined as CertificateInfo\n   - index.ts: re-exported as CertificateInfoType\n   - ti-connect.ts: implicitly used (returns from CertificateAnalyzer)\n\nKey characteristic: JWAMapper is ONLY used internally within the crypto-adapter module. It's NOT imported or used anywhere else in the codebase besides:\n- adapter.ts (where CertificateAnalyzer uses it)\n- index.ts (for re-export)\n- Test files\n\n---\n\n4. Datadog Tracking Data Format\n\nFile: /Users/USER/workspace/doctolib/FHIR-1996_track-ecc-rsa-certificate-usage/src/modules/kbv-ti-connect/main/ti-connect.ts\n\nLocation: trackCertificateType() function (lines 104-137)\n\nCurrent data sent to Datadog:\n// Success case (lines 114-119)\n{\n  certificateType: certificateInfo.certificateType,  // \"ECC\" or \"RSA\"\n  curveName: certificateInfo.curveName,              // e.g., \"brainpoolP256r1\" or undefined\n  tiEnvironment: tiEnvironment,                      // e.g., \"RU\", \"PU\", \"UNKNOWN\"\n}\n\n// Error case (lines 129-135)\n{\n  tiEnvironment: tiEnvironment,\n  error: true,\n  errorMessage: error.message,\n  errorName: error.name,\n}\n\nObservability Context:\n- Sent via tiConnectEventObservability.send() \n- Event type: TrackingEvent.KbvTiConnect\n- Wrapped in extra metadata:\n    {\n    traceId: string,\n    functionName: 'onTiConnectDecryptKeyStoreListener',\n    operation: 'read',\n    direction: 'output',\n    data: JSON.stringify({...})\n  }\n\nTest Verification (lines 515-585):\nTests confirm that:\n- CertificateAnalyzer.analyzeCertificate() is called with the decrypted certificate\n- Certificate info (type and curve) is tracked\n- Different TI environments are included\n- Errors are tracked with error details\n- RSA certificates log without curveName\n\n---\n\n5. Call Flow Diagram\n\nonTiConnectDecryptKeyStoreListener (ti-connect.ts:139)\n    ↓\nreadKeyStoreFromFile() + decryptKeyStore()\n    ↓\ntrackCertificateType(cert, traceId) (ti-connect.ts:104)\n    ↓\nCertificateAnalyzer.analyzeCertificate(cert) (adapter.ts:167)\n    ↓\nJWSUtils.deriveJWAFromCertificate(cert) (JWSUtils.ts:83)\n    ↓\nReturns: JWA string (\"RS256\", \"ES256\", \"BP256R1\", \"none\", etc.)\n    ↓\nJWAMapper.mapJWAToCertificateInfo(jwa) (jwaMapper.ts:22)\n    ↓\nReturns: { certificateType: 'ECC'|'RSA', curveName?: string }\n    ↓\ntiConnectEventObservability.send(data) → Datadog\n\n---\n\n6. Key Dependencies & Imports\n\nCertificateAnalyzer needs:\n- JWSUtils (JWA derivation)\n- JWAMapper (JWA → CertificateInfo conversion)\n- pkijs library (for X.509 cert parsing)\n\nTiConnect tracking needs:\n- CertificateAnalyzer (from @module/gematik-crypto)\n- TiEnvRepository (for TI environment info)\n- TrackingEvent (from @core/monitoring)\n- tiConnectEventObservability (observability helper)\n\n---\n\n7. Simplification Implications\n\nCurrent approach:\n1. Derive JWA string from certificate\n2. Map JWA to structured CertificateInfo (certificateType + curveName)\n3. Send structured data to Datadog\n\nSimplification (log raw JWA string):\n- Remove JWAMapper entirely\n- CertificateAnalyzer would return the JWA string directly\n- Datadog would receive: { jwa: \"RS256\" } or { jwa: \"BP256R1\" } instead of { certificateType: \"RSA\" }\n- Impact: \n  - Removes one layer of mapping/abstraction\n  - Changes what's logged to Datadog (raw algorithm vs semantic meaning)\n  - JWA strings are already standardized (RFC 7518)\n  - Loses the semantic \"certificateType\" and \"curveName\" distinction\n\n---\n\nSummary Table\n\n| Component | Location | Returns | Current Behavior |\n|-----------|----------|---------|------------------|\n| JWSUtils.deriveJWAFromCertificate | JWSUtils.ts:83 | JWA string (\"RS256\", \"ES256\", \"BP256R1\", \"none\") | Parses X.509 cert using pkijs |\n| JWAMapper.mapJWAToCertificateInfo | jwaMapper.ts:22 | {certificateType: 'ECC'\\|'RSA', curveName?: string} | Maps JWA to semantic info |\n| CertificateAnalyzer.analyzeCertificate | adapter.ts:167 | {certificateType, curveName?} | Combines JWSUtils + JWAMapper |\n| trackCertificateType | ti-connect.ts:104 | void (sends to Datadog) | Fire-and-forget with error handling |\n\nThis should give you everyth\n…(truncated, 40 more chars)",
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}