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Authenticate (challenge-response)</text><line x1=\"76\" y1=\"119\" x2=\"600\" y2=\"119\" class=\"messageLine0\" data-et=\"message\" data-id=\"i0\" data-from=\"User\" data-to=\"Auth\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-83540b7f8ca6f776a0dc7c258b0c7d2780186afced13d8ea86e8afbb3dee8e67-arrowhead)\" style=\"fill: none;\"></line><text x=\"341\" y=\"134\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">JWT token</text><line x1=\"603\" y1=\"173\" x2=\"79\" y2=\"173\" class=\"messageLine1\" data-et=\"message\" data-id=\"i1\" data-from=\"Auth\" data-to=\"User\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-83540b7f8ca6f776a0dc7c258b0c7d2780186afced13d8ea86e8afbb3dee8e67-arrowhead)\" style=\"stroke-dasharray: 3, 3; fill: none;\"></line><text x=\"238\" y=\"188\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">2. Submit signed Intent (JWT + TLS)</text><line x1=\"76\" y1=\"227\" x2=\"400\" y2=\"227\" class=\"messageLine0\" data-et=\"message\" data-id=\"i2\" data-from=\"User\" data-to=\"API\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-83540b7f8ca6f776a0dc7c258b0c7d2780186afced13d8ea86e8afbb3dee8e67-arrowhead)\" style=\"fill: none;\"></line><text x=\"603\" y=\"242\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">3. Forward Intent (mTLS)</text><line x1=\"405\" y1=\"281\" x2=\"800\" y2=\"281\" class=\"messageLine0\" data-et=\"message\" data-id=\"i3\" data-from=\"API\" data-to=\"Notary\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-83540b7f8ca6f776a0dc7c258b0c7d2780186afced13d8ea86e8afbb3dee8e67-arrowhead)\" style=\"fill: none;\"></line><text x=\"805\" y=\"296\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">4. Verify user signature</text><path d=\"M 805,335 C 865,325 865,365 805,355\" class=\"messageLine0\" data-et=\"message\" data-id=\"i4\" data-from=\"Notary\" data-to=\"Notary\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-83540b7f8ca6f776a0dc7c258b0c7d2780186afced13d8ea86e8afbb3dee8e67-arrowhead)\" style=\"fill: none;\"></path><text x=\"805\" y=\"380\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">5. Check policies &amp; Merkle tree</text><path d=\"M 805,419 C 865,409 865,449 805,439\" class=\"messageLine0\" data-et=\"message\" data-id=\"i5\" data-from=\"Notary\" data-to=\"Notary\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-83540b7f8ca6f776a0dc7c258b0c7d2780186afced13d8ea86e8afbb3dee8e67-arrowhead)\" style=\"fill: none;\"></path><text x=\"805\" y=\"464\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">6. Verify ARF version</text><path d=\"M 805,503 C 865,493 865,533 805,523\" class=\"messageLine0\" data-et=\"message\" data-id=\"i6\" data-from=\"Notary\" data-to=\"Notary\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-83540b7f8ca6f776a0dc7c258b0c7d2780186afced13d8ea86e8afbb3dee8e67-arrowhead)\" style=\"fill: none;\"></path><text x=\"1001\" y=\"548\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">7. Request signing (mTLS + signed message)</text><line x1=\"805\" y1=\"587\" x2=\"1197\" y2=\"587\" class=\"messageLine0\" data-et=\"message\" data-id=\"i7\" data-from=\"Notary\" data-to=\"Vault\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-83540b7f8ca6f776a0dc7c258b0c7d2780186afced13d8ea86e8afbb3dee8e67-arrowhead)\" style=\"fill: none;\"></line><text x=\"1324\" y=\"602\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">8. Sign transaction</text><line x1=\"1202\" y1=\"641\" x2=\"1446\" y2=\"641\" class=\"messageLine0\" data-et=\"message\" data-id=\"i8\" data-from=\"Vault\" data-to=\"KMS\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-83540b7f8ca6f776a0dc7c258b0c7d2780186afced13d8ea86e8afbb3dee8e67-arrowhead)\" style=\"fill: none;\"></line><text x=\"1327\" y=\"656\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">9. Return signature only</text><line x1=\"1449\" y1=\"695\" x2=\"1205\" y2=\"695\" class=\"messageLine1\" data-et=\"message\" data-id=\"i9\" data-from=\"KMS\" data-to=\"Vault\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-83540b7f8ca6f776a0dc7c258b0c7d2780186afced13d8ea86e8afbb3dee8e67-arrowhead)\" style=\"stroke-dasharray: 3, 3; fill: none;\"></line><text x=\"1004\" y=\"710\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">10. Signed transaction</text><line x1=\"1200\" y1=\"749\" x2=\"808\" y2=\"749\" class=\"messageLine1\" data-et=\"message\" data-id=\"i10\" data-from=\"Vault\" data-to=\"Notary\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-83540b7f8ca6f776a0dc7c258b0c7d2780186afced13d8ea86e8afbb3dee8e67-arrowhead)\" style=\"stroke-dasharray: 3, 3; fill: none;\"></line><text x=\"805\" y=\"764\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">11. Update Merkle tree &amp; ARF</text><path d=\"M 805,803 C 865,793 865,833 805,823\" class=\"messageLine0\" data-et=\"message\" data-id=\"i11\" data-from=\"Notary\" data-to=\"Notary\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-83540b7f8ca6f776a0dc7c258b0c7d2780186afced13d8ea86e8afbb3dee8e67-arrowhead)\" style=\"fill: none;\"></path></svg>","diagramHtmlDark":"<svg id=\"diagram-d142e416fb199e17fce4d6f58146a9d5f58cfb02c0542476036947ffc2e61f36\" width=\"100%\" xmlns=\"http://www.w3.org/2000/svg\" style=\"max-width: 1625px;\" viewBox=\"-50 -10 1625 939\" role=\"graphics-document document\" aria-roledescription=\"sequence\"><g><rect x=\"1375\" y=\"853\" fill=\"#eaeaea\" stroke=\"#666\" width=\"150\" height=\"65\" name=\"KMS\" rx=\"3\" ry=\"3\" class=\"actor actor-bottom\"></rect><text x=\"1450\" y=\"885.5\" dominant-baseline=\"central\" alignment-baseline=\"central\" class=\"actor actor-box\" style=\"text-anchor: middle; font-size: 16px; font-weight: 400; font-family: 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text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">1. Authenticate (challenge-response)</text><line x1=\"76\" y1=\"119\" x2=\"600\" y2=\"119\" class=\"messageLine0\" data-et=\"message\" data-id=\"i0\" data-from=\"User\" data-to=\"Auth\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-d142e416fb199e17fce4d6f58146a9d5f58cfb02c0542476036947ffc2e61f36-arrowhead)\" style=\"fill: none;\"></line><text x=\"341\" y=\"134\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">JWT token</text><line x1=\"603\" y1=\"173\" x2=\"79\" y2=\"173\" class=\"messageLine1\" data-et=\"message\" data-id=\"i1\" data-from=\"Auth\" data-to=\"User\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-d142e416fb199e17fce4d6f58146a9d5f58cfb02c0542476036947ffc2e61f36-arrowhead)\" style=\"stroke-dasharray: 3, 3; fill: none;\"></line><text x=\"238\" y=\"188\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">2. Submit signed Intent (JWT + TLS)</text><line x1=\"76\" y1=\"227\" x2=\"400\" y2=\"227\" class=\"messageLine0\" data-et=\"message\" data-id=\"i2\" data-from=\"User\" data-to=\"API\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-d142e416fb199e17fce4d6f58146a9d5f58cfb02c0542476036947ffc2e61f36-arrowhead)\" style=\"fill: none;\"></line><text x=\"603\" y=\"242\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">3. Forward Intent (mTLS)</text><line x1=\"405\" y1=\"281\" x2=\"800\" y2=\"281\" class=\"messageLine0\" data-et=\"message\" data-id=\"i3\" data-from=\"API\" data-to=\"Notary\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-d142e416fb199e17fce4d6f58146a9d5f58cfb02c0542476036947ffc2e61f36-arrowhead)\" style=\"fill: none;\"></line><text x=\"805\" y=\"296\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">4. Verify user signature</text><path d=\"M 805,335 C 865,325 865,365 805,355\" class=\"messageLine0\" data-et=\"message\" data-id=\"i4\" data-from=\"Notary\" data-to=\"Notary\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-d142e416fb199e17fce4d6f58146a9d5f58cfb02c0542476036947ffc2e61f36-arrowhead)\" style=\"fill: none;\"></path><text x=\"805\" y=\"380\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">5. Check policies &amp; Merkle tree</text><path d=\"M 805,419 C 865,409 865,449 805,439\" class=\"messageLine0\" data-et=\"message\" data-id=\"i5\" data-from=\"Notary\" data-to=\"Notary\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-d142e416fb199e17fce4d6f58146a9d5f58cfb02c0542476036947ffc2e61f36-arrowhead)\" style=\"fill: none;\"></path><text x=\"805\" y=\"464\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">6. Verify ARF version</text><path d=\"M 805,503 C 865,493 865,533 805,523\" class=\"messageLine0\" data-et=\"message\" data-id=\"i6\" data-from=\"Notary\" data-to=\"Notary\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-d142e416fb199e17fce4d6f58146a9d5f58cfb02c0542476036947ffc2e61f36-arrowhead)\" style=\"fill: none;\"></path><text x=\"1001\" y=\"548\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">7. Request signing (mTLS + signed message)</text><line x1=\"805\" y1=\"587\" x2=\"1197\" y2=\"587\" class=\"messageLine0\" data-et=\"message\" data-id=\"i7\" data-from=\"Notary\" data-to=\"Vault\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-d142e416fb199e17fce4d6f58146a9d5f58cfb02c0542476036947ffc2e61f36-arrowhead)\" style=\"fill: none;\"></line><text x=\"1324\" y=\"602\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">8. Sign transaction</text><line x1=\"1202\" y1=\"641\" x2=\"1446\" y2=\"641\" class=\"messageLine0\" data-et=\"message\" data-id=\"i8\" data-from=\"Vault\" data-to=\"KMS\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-d142e416fb199e17fce4d6f58146a9d5f58cfb02c0542476036947ffc2e61f36-arrowhead)\" style=\"fill: none;\"></line><text x=\"1327\" y=\"656\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">9. Return signature only</text><line x1=\"1449\" y1=\"695\" x2=\"1205\" y2=\"695\" class=\"messageLine1\" data-et=\"message\" data-id=\"i9\" data-from=\"KMS\" data-to=\"Vault\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-d142e416fb199e17fce4d6f58146a9d5f58cfb02c0542476036947ffc2e61f36-arrowhead)\" style=\"stroke-dasharray: 3, 3; fill: none;\"></line><text x=\"1004\" y=\"710\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">10. Signed transaction</text><line x1=\"1200\" y1=\"749\" x2=\"808\" y2=\"749\" class=\"messageLine1\" data-et=\"message\" data-id=\"i10\" data-from=\"Vault\" data-to=\"Notary\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-d142e416fb199e17fce4d6f58146a9d5f58cfb02c0542476036947ffc2e61f36-arrowhead)\" style=\"stroke-dasharray: 3, 3; fill: none;\"></line><text x=\"805\" y=\"764\" text-anchor=\"middle\" dominant-baseline=\"middle\" alignment-baseline=\"middle\" class=\"messageText\" dy=\"1em\" style=\"font-family: &quot;Redocly Mermaid Sans&quot;, &quot;Redocly Mermaid CJK&quot;, sans-serif; font-size: 16px; font-weight: 400;\">11. Update Merkle tree &amp; ARF</text><path d=\"M 805,803 C 865,793 865,833 805,823\" class=\"messageLine0\" data-et=\"message\" data-id=\"i11\" data-from=\"Notary\" data-to=\"Notary\" stroke-width=\"2\" stroke=\"none\" marker-end=\"url(#diagram-d142e416fb199e17fce4d6f58146a9d5f58cfb02c0542476036947ffc2e61f36-arrowhead)\" style=\"fill: none;\"></path></svg>"},"children":["sequenceDiagram\n    participant User\n    participant API as API Gateway\n    participant Auth as Auth Server\n    participant Notary\n    participant Vault\n    participant KMS\n\n    User->>Auth: 1. Authenticate (challenge-response)\n    Auth-->>User: JWT token\n\n    User->>API: 2. Submit signed Intent (JWT + TLS)\n    API->>Notary: 3. Forward Intent (mTLS)\n\n    Notary->>Notary: 4. Verify user signature\n    Notary->>Notary: 5. Check policies & Merkle tree\n    Notary->>Notary: 6. Verify ARF version\n\n    Notary->>Vault: 7. Request signing (mTLS + signed message)\n    Vault->>KMS: 8. Sign transaction\n    KMS-->>Vault: 9. Return signature only\n\n    Vault-->>Notary: 10. Signed transaction\n    Notary->>Notary: 11. 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A cryptographically protected file that tracks the current state version to prevent replay attacks. See ",{"$$mdtype":"Tag","name":"MarkdownLink","attributes":{"href":"/products/custody/v1.34/concepts/data-integrity#anti-rewind-file-arf"},"children":["Data integrity"]},"."]}]},{"$$mdtype":"Tag","name":"tr","attributes":{},"children":[{"$$mdtype":"Tag","name":"td","attributes":{},"children":[{"$$mdtype":"Tag","name":"strong","attributes":{},"children":["Bearer token"]}]},{"$$mdtype":"Tag","name":"td","attributes":{},"children":["An authentication token included in HTTP request headers. Anyone \"bearing\" the token can use it, so it must be transmitted over TLS."]}]},{"$$mdtype":"Tag","name":"tr","attributes":{},"children":[{"$$mdtype":"Tag","name":"td","attributes":{},"children":[{"$$mdtype":"Tag","name":"strong","attributes":{},"children":["Canonical JSON"]}]},{"$$mdtype":"Tag","name":"td","attributes":{},"children":["A standardized JSON format with sorted keys and no whitespace, ensuring the same data always produces the same byte sequence for signing."]}]},{"$$mdtype":"Tag","name":"tr","attributes":{},"children":[{"$$mdtype":"Tag","name":"td","attributes":{},"children":[{"$$mdtype":"Tag","name":"strong","attributes":{},"children":["DER format"]}]},{"$$mdtype":"Tag","name":"td","attributes":{},"children":["Distinguished Encoding Rules. A binary encoding for cryptographic data structures like signatures and certificates."]}]},{"$$mdtype":"Tag","name":"tr","attributes":{},"children":[{"$$mdtype":"Tag","name":"td","attributes":{},"children":[{"$$mdtype":"Tag","name":"strong","attributes":{},"children":["Intent"]}]},{"$$mdtype":"Tag","name":"td","attributes":{},"children":["A signed request to change system state (e.g., transfer funds, update a policy)."]}]},{"$$mdtype":"Tag","name":"tr","attributes":{},"children":[{"$$mdtype":"Tag","name":"td","attributes":{},"children":[{"$$mdtype":"Tag","name":"strong","attributes":{},"children":["JWT"]}]},{"$$mdtype":"Tag","name":"td","attributes":{},"children":["JSON Web Token. A compact, signed token containing identity claims, used for stateless authentication."]}]},{"$$mdtype":"Tag","name":"tr","attributes":{},"children":[{"$$mdtype":"Tag","name":"td","attributes":{},"children":[{"$$mdtype":"Tag","name":"strong","attributes":{},"children":["mTLS"]}]},{"$$mdtype":"Tag","name":"td","attributes":{},"children":["Mutual TLS. A TLS connection where both client and server present certificates and verify each other's identity."]}]},{"$$mdtype":"Tag","name":"tr","attributes":{},"children":[{"$$mdtype":"Tag","name":"td","attributes":{},"children":[{"$$mdtype":"Tag","name":"strong","attributes":{},"children":["OIDC"]}]},{"$$mdtype":"Tag","name":"td","attributes":{},"children":["OpenID Connect. An identity layer built on OAuth 2.0 that enables authentication and identity verification."]}]},{"$$mdtype":"Tag","name":"tr","attributes":{},"children":[{"$$mdtype":"Tag","name":"td","attributes":{},"children":[{"$$mdtype":"Tag","name":"strong","attributes":{},"children":["PKI"]}]},{"$$mdtype":"Tag","name":"td","attributes":{},"children":["Public Key Infrastructure. A system of certificates, certificate authorities, and trust relationships used to verify identities."]}]},{"$$mdtype":"Tag","name":"tr","attributes":{},"children":[{"$$mdtype":"Tag","name":"td","attributes":{},"children":[{"$$mdtype":"Tag","name":"strong","attributes":{},"children":["TLS"]}]},{"$$mdtype":"Tag","name":"td","attributes":{},"children":["Transport Layer Security. A cryptographic protocol that encrypts network traffic and verifies server identity."]}]}]}]}]}]},"headings":[{"value":"Secure communication","id":"secure-communication","depth":1},{"value":"Overview","id":"overview","depth":2},{"value":"Authentication","id":"authentication","depth":2},{"value":"JWT authentication","id":"jwt-authentication","depth":3},{"value":"Digital signatures for authorization","id":"digital-signatures-for-authorization","depth":3},{"value":"Network security","id":"network-security","depth":2},{"value":"Mutual TLS (mTLS)","id":"mutual-tls-mtls","depth":3},{"value":"Your internal PKI","id":"your-internal-pki","depth":3},{"value":"Internal platform communication","id":"internal-platform-communication","depth":3},{"value":"Dependency connections","id":"dependency-connections","depth":3},{"value":"Blockchain connections","id":"blockchain-connections","depth":3},{"value":"The security lifecycle in practice","id":"the-security-lifecycle-in-practice","depth":2},{"value":"Glossary","id":"glossary","depth":2}],"frontmatter":{"seo":{"title":"Secure communication"}},"lastModified":"2026-04-07T19:14:09.000Z","pagePropGetterError":{"message":"","name":""}},"slug":"/products/custody/v1.34/concepts/secure-communication","userData":{"isAuthenticated":false,"teams":["anonymous"]},"isPublic":true}