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<title>Permissionless Auth - Catalyst Voting System - Core Technology</title>
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<ol class="chapter"><li class="chapter-item affix "><a href="../../00_prologue.html">Prologue</a></li><li class="chapter-item "><a href="../../01_intro.html"><strong aria-hidden="true">1.</strong> Introduction</a></li><li class="chapter-item expanded "><a href="../../02_core_ledger/index.html"><strong aria-hidden="true">2.</strong> Core Ledger</a><a class="toggle"><div>❱</div></a></li><li><ol class="section"><li class="chapter-item "><a href="../../02_core_ledger/01_concepts/index.html"><strong aria-hidden="true">2.1.</strong> General Concepts</a><a class="toggle"><div>❱</div></a></li><li><ol class="section"><li class="chapter-item "><a href="../../02_core_ledger/01_concepts/blockchain.html"><strong aria-hidden="true">2.1.1.</strong> Blockchain concepts</a></li><li class="chapter-item "><a href="../../02_core_ledger/01_concepts/network.html"><strong aria-hidden="true">2.1.2.</strong> Network overview</a></li><li class="chapter-item "><a href="../../02_core_ledger/01_concepts/node.html"><strong aria-hidden="true">2.1.3.</strong> Node organization</a></li><li class="chapter-item "><a href="../../02_core_ledger/01_concepts/stake.html"><strong aria-hidden="true">2.1.4.</strong> Stake</a></li></ol></li><li class="chapter-item "><a href="../../02_core_ledger/02_quickstart/index.html"><strong aria-hidden="true">2.2.</strong> Quickstart</a><a class="toggle"><div>❱</div></a></li><li><ol class="section"><li class="chapter-item "><a href="../../02_core_ledger/02_quickstart/01_command_line.html"><strong aria-hidden="true">2.2.1.</strong> Command line tools</a></li><li class="chapter-item "><a href="../../02_core_ledger/02_quickstart/02_passive_node.html"><strong aria-hidden="true">2.2.2.</strong> Starting a passive node</a></li><li class="chapter-item "><a href="../../02_core_ledger/02_quickstart/03_rest_api.html"><strong aria-hidden="true">2.2.3.</strong> REST Api</a></li><li class="chapter-item "><a href="../../02_core_ledger/02_quickstart/04_explorer.html"><strong aria-hidden="true">2.2.4.</strong> Explorer mode</a></li><li class="chapter-item "><a href="../../02_core_ledger/02_quickstart/05_leader_candidate.html"><strong aria-hidden="true">2.2.5.</strong> How to start a node as a leader candidate</a></li></ol></li><li class="chapter-item "><a href="../../02_core_ledger/03_configuration/index.html"><strong aria-hidden="true">2.3.</strong> Configuration</a><a class="toggle"><div>❱</div></a></li><li><ol class="section"><li class="chapter-item "><a href="../../02_core_ledger/03_configuration/leadership.html"><strong aria-hidden="true">2.3.1.</strong> Leadership</a></li><li class="chapter-item "><a href="../../02_core_ledger/03_configuration/logging.html"><strong aria-hidden="true">2.3.2.</strong> Logging</a></li><li class="chapter-item "><a href="../../02_core_ledger/03_configuration/mempool.html"><strong aria-hidden="true">2.3.3.</strong> Mempool</a></li><li class="chapter-item "><a href="../../02_core_ledger/03_configuration/network.html"><strong aria-hidden="true">2.3.4.</strong> Node network</a></li><li class="chapter-item "><a href="../../02_core_ledger/03_configuration/prometheus.html"><strong aria-hidden="true">2.3.5.</strong> Prometheus</a></li></ol></li><li class="chapter-item "><a href="../../02_core_ledger/04_jcli/index.html"><strong aria-hidden="true">2.4.</strong> jcli</a><a class="toggle"><div>❱</div></a></li><li><ol class="section"><li class="chapter-item "><a href="../../02_core_ledger/04_jcli/address.html"><strong aria-hidden="true">2.4.1.</strong> Address</a></li><li class="chapter-item "><a href="../../02_core_ledger/04_jcli/certificate.html"><strong aria-hidden="true">2.4.2.</strong> Certificate</a></li><li class="chapter-item "><a href="../../02_core_ledger/04_jcli/genesis.html"><strong aria-hidden="true">2.4.3.</strong> Genesis</a></li><li class="chapter-item "><a href="../../02_core_ledger/04_jcli/key.html"><strong aria-hidden="true">2.4.4.</strong> cryptographic keys</a></li><li class="chapter-item "><a href="../../02_core_ledger/04_jcli/rest.html"><strong aria-hidden="true">2.4.5.</strong> REST</a></li><li class="chapter-item "><a href="../../02_core_ledger/04_jcli/transaction.html"><strong aria-hidden="true">2.4.6.</strong> Transaction</a></li><li class="chapter-item "><a href="../../02_core_ledger/04_jcli/vote.html"><strong aria-hidden="true">2.4.7.</strong> Voting</a></li></ol></li><li class="chapter-item "><a href="../../02_core_ledger/05_stake_pool/index.html"><strong aria-hidden="true">2.5.</strong> Staking with Jörmungandr</a><a class="toggle"><div>❱</div></a></li><li><ol class="section"><li class="chapter-item "><a href="../../02_core_ledger/05_stake_pool/delegating_stake.html"><strong aria-hidden="true">2.5.1.</strong> Delegating your stake</a></li><li class="chapter-item "><a href="../../02_core_ledger/05_stake_pool/registering_stake_pool.html"><strong aria-hidden="true">2.5.2.</strong> Registering a stake pool</a></li><li class="chapter-item "><a href="../../02_core_ledger/05_stake_pool/retiring_stake_pool.html"><strong aria-hidden="true">2.5.3.</strong> Retiring a stake pool</a></li></ol></li><li class="chapter-item "><a href="../../02_core_ledger/06_advanced/index.html"><strong aria-hidden="true">2.6.</strong> Advanced</a><a class="toggle"><div>❱</div></a></li><li><ol class="section"><li class="chapter-item "><a href="../../02_core_ledger/06_advanced/01_the_genesis_block.html"><strong aria-hidden="true">2.6.1.</strong> genesis file</a></li><li class="chapter-item "><a href="../../02_core_ledger/06_advanced/02_starting_bft_blockchain.html"><strong aria-hidden="true">2.6.2.</strong> starting a bft node</a></li><li class="chapter-item "><a href="../../02_core_ledger/06_advanced/03_starting_genesis_praos_blockchain.html"><strong aria-hidden="true">2.6.3.</strong> starting a genesis blockchain</a></li><li class="chapter-item "><a href="../../02_core_ledger/06_advanced/04_vote_fragments_voteplan_blockchain_relationships.html"><strong aria-hidden="true">2.6.4.</strong> How Vote plans, Vote Fragments and the blockchain transaction work and inter-relate</a></li></ol></li><li class="chapter-item "><a href="../../02_core_ledger/07_specs/index.html"><strong aria-hidden="true">2.7.</strong> Jormungandr Specifications</a><a class="toggle"><div>❱</div></a></li><li><ol class="section"><li class="chapter-item "><a href="../../02_core_ledger/07_specs/migration.html"><strong aria-hidden="true">2.7.1.</strong> MIGRATION</a></li><li class="chapter-item "><a href="../../02_core_ledger/07_specs/network.html"><strong aria-hidden="true">2.7.2.</strong> Network</a></li></ol></li><li class="chapter-item "><a href="../../02_core_ledger/08_testing/index.html"><strong aria-hidden="true">2.8.</strong> testing</a><a class="toggle"><div>❱</div></a></li><li><ol class="section"><li class="chapter-item "><a href="../../02_core_ledger/08_testing/automation.html"><strong aria-hidden="true">2.8.1.</strong> jormungandr-automation</a></li><li class="chapter-item "><a href="../../02_core_ledger/08_testing/hersir.html"><strong aria-hidden="true">2.8.2.</strong> Hersir</a></li><li class="chapter-item "><a href="../../02_core_ledger/08_testing/integration_tests.html"><strong aria-hidden="true">2.8.3.</strong> jormungandr-integration-tests</a></li><li class="chapter-item "><a href="../../02_core_ledger/08_testing/loki.html"><strong aria-hidden="true">2.8.4.</strong> Loki</a></li><li class="chapter-item "><a href="../../02_core_ledger/08_testing/mjolnir.html"><strong aria-hidden="true">2.8.5.</strong> Mjolnir</a></li><li class="chapter-item "><a href="../../02_core_ledger/08_testing/thor.html"><strong aria-hidden="true">2.8.6.</strong> Thor</a></li></ol></li><li class="chapter-item expanded "><a href="../../02_core_ledger/09_internal_design/index.html"><strong aria-hidden="true">2.9.</strong> Internal Design</a><a class="toggle"><div>❱</div></a></li><li><ol class="section"><li class="chapter-item "><a href="../../02_core_ledger/09_internal_design/01_auto-start.html"><strong aria-hidden="true">2.9.1.</strong> Automatic deployment of the voting blockchain</a></li><li class="chapter-item expanded "><a href="../../02_core_ledger/09_internal_design/02_permissionless_auth.html" class="active"><strong aria-hidden="true">2.9.2.</strong> Permissionless Auth</a></li></ol></li></ol></li><li class="chapter-item "><a href="../../03_core_testing/index.html"><strong aria-hidden="true">3.</strong> Catalyst testing User Guide</a><a class="toggle"><div>❱</div></a></li><li><ol class="section"><li class="chapter-item "><a href="../../03_core_testing/iapyx/index.html"><strong aria-hidden="true">3.1.</strong> Iapyx</a><a class="toggle"><div>❱</div></a></li><li><ol class="section"><li class="chapter-item "><a href="../../03_core_testing/iapyx/iapyx.html"><strong aria-hidden="true">3.1.1.</strong> Iapyx</a></li><li class="chapter-item "><a href="../../03_core_testing/iapyx/load.html"><strong aria-hidden="true">3.1.2.</strong> Iapyx Load</a></li></ol></li><li class="chapter-item "><a href="../../03_core_testing/integration-tests/index.html"><strong aria-hidden="true">3.2.</strong> integration-tests</a></li><li class="chapter-item "><a href="../../03_core_testing/registration-service/index.html"><strong aria-hidden="true">3.3.</strong> Registration service</a><a class="toggle"><div>❱</div></a></li><li><ol class="section"><li class="chapter-item "><a href="../../03_core_testing/registration-service/cli.html"><strong aria-hidden="true">3.3.1.</strong> Registration CLI</a></li><li class="chapter-item "><a href="../../03_core_testing/registration-service/configuration.html"><strong aria-hidden="true">3.3.2.</strong> Configuration</a></li></ol></li><li class="chapter-item "><a href="../../03_core_testing/registration-verify-service/index.html"><strong aria-hidden="true">3.4.</strong> Registration service</a><a class="toggle"><div>❱</div></a></li><li><ol class="section"><li class="chapter-item "><a href="../../03_core_testing/registration-verify-service/cli.html"><strong aria-hidden="true">3.4.1.</strong> Registration Verify CLI</a></li><li class="chapter-item "><a href="../../03_core_testing/registration-verify-service/configuration.html"><strong aria-hidden="true">3.4.2.</strong> Configuration</a></li></ol></li><li class="chapter-item "><a href="../../03_core_testing/snapshot-service/index.html"><strong aria-hidden="true">3.5.</strong> Snapshot trigger service</a><a class="toggle"><div>❱</div></a></li><li><ol class="section"><li class="chapter-item "><a href="../../03_core_testing/snapshot-service/cli.html"><strong aria-hidden="true">3.5.1.</strong> Registration CLI</a></li><li class="chapter-item "><a href="../../03_core_testing/snapshot-service/configuration.html"><strong aria-hidden="true">3.5.2.</strong> Configuration</a></li></ol></li><li class="chapter-item "><a href="../../03_core_testing/snapshot-wormhole/index.html"><strong aria-hidden="true">3.6.</strong> snapshot wormhole</a><a class="toggle"><div>❱</div></a></li><li><ol class="section"><li class="chapter-item "><a href="../../03_core_testing/snapshot-wormhole/configuration.html"><strong aria-hidden="true">3.6.1.</strong> Configuration</a></li></ol></li><li class="chapter-item "><a href="../../03_core_testing/valgrind/index.html"><strong aria-hidden="true">3.7.</strong> valgrind</a><a class="toggle"><div>❱</div></a></li><li><ol class="section"><li class="chapter-item "><a href="../../03_core_testing/valgrind/configuration.html"><strong aria-hidden="true">3.7.1.</strong> Configuration</a></li></ol></li><li class="chapter-item "><a href="../../03_core_testing/vitup/index.html"><strong aria-hidden="true">3.8.</strong> vitup</a><a class="toggle"><div>❱</div></a></li><li><ol class="section"><li class="chapter-item "><a href="../../03_core_testing/vitup/configuration.html"><strong aria-hidden="true">3.8.1.</strong> Configuration</a></li><li class="chapter-item "><a href="../../03_core_testing/vitup/data_generation/index.html"><strong aria-hidden="true">3.8.2.</strong> Data Generation</a><a class="toggle"><div>❱</div></a></li><li><ol class="section"><li class="chapter-item "><a href="../../03_core_testing/vitup/data_generation/reset.html"><strong aria-hidden="true">3.8.2.1.</strong> Configuration</a></li><li class="chapter-item "><a href="../../03_core_testing/vitup/data_generation/snapshot.html"><strong aria-hidden="true">3.8.2.2.</strong> Configuration</a></li></ol></li><li class="chapter-item "><a href="../../03_core_testing/vitup/data_generation.html"><strong aria-hidden="true">3.8.3.</strong> Data Generation</a></li><li class="chapter-item "><a href="../../03_core_testing/vitup/mock.html"><strong aria-hidden="true">3.8.4.</strong> Mock</a></li><li class="chapter-item "><a href="../../03_core_testing/vitup/mock_farm.html"><strong aria-hidden="true">3.8.5.</strong> Mock Farm</a></li><li class="chapter-item "><a href="../../03_core_testing/vitup/run_modes.html"><strong aria-hidden="true">3.8.6.</strong> Configuration modes</a></li></ol></li></ol></li><li class="chapter-item "><a href="../../04_core_vitss/index.html"><strong aria-hidden="true">4.</strong> Core VIT Servicing Station</a><a class="toggle"><div>❱</div></a></li><li><ol class="section"><li class="chapter-item "><a href="../../04_core_vitss/testing.html"><strong aria-hidden="true">4.1.</strong> vit-servicing-station-tests</a></li></ol></li><li class="chapter-item "><a href="../../05_unified_platform/index.html"><strong aria-hidden="true">5.</strong> Unified Platform</a><a class="toggle"><div>❱</div></a></li><li><ol class="section"><li class="chapter-item "><a href="../../05_unified_platform/01_catalyst-cardano-bridge/index.html"><strong aria-hidden="true">5.1.</strong> Overview</a><a class="toggle"><div>❱</div></a></li><li><ol class="section"><li class="chapter-item "><a href="../../05_unified_platform/01_catalyst-cardano-bridge/01_cardano_nodes.html"><strong aria-hidden="true">5.1.1.</strong> Cardano Nodes</a></li><li class="chapter-item "><a href="../../05_unified_platform/01_catalyst-cardano-bridge/02_bridge_pipeline/index.html"><strong aria-hidden="true">5.1.2.</strong> Bridge Pipeline</a><a class="toggle"><div>❱</div></a></li><li><ol class="section"><li class="chapter-item "><a href="../../05_unified_platform/01_catalyst-cardano-bridge/02_bridge_pipeline/01_block_reader.html"><strong aria-hidden="true">5.1.2.1.</strong> Block Reader</a></li></ol></li><li class="chapter-item "><a href="../../05_unified_platform/01_catalyst-cardano-bridge/03_rest_http_service.html"><strong aria-hidden="true">5.1.3.</strong> REST HTTP Service</a></li><li class="chapter-item "><a href="../../05_unified_platform/01_catalyst-cardano-bridge/04_event_stream.html"><strong aria-hidden="true">5.1.4.</strong> Event Stream</a></li><li class="chapter-item "><a href="../../05_unified_platform/01_catalyst-cardano-bridge/05_database/index.html"><strong aria-hidden="true">5.1.5.</strong> Database</a><a class="toggle"><div>❱</div></a></li><li><ol class="section"><li class="chapter-item "><a href="../../05_unified_platform/01_catalyst-cardano-bridge/05_database/01_registration_db.html"><strong aria-hidden="true">5.1.5.1.</strong> Registrations Database</a></li><li class="chapter-item "><a href="../../05_unified_platform/01_catalyst-cardano-bridge/05_database/02_staked_ada_db.html"><strong aria-hidden="true">5.1.5.2.</strong> Staked ADA Database</a></li><li class="chapter-item "><a href="../../05_unified_platform/01_catalyst-cardano-bridge/05_database/03_transaction_state.html"><strong aria-hidden="true">5.1.5.3.</strong> Transaction State Database</a></li></ol></li></ol></li></ol></li><li class="chapter-item "><a href="../../06_rust_api/index.html"><strong aria-hidden="true">6.</strong> Rust API</a><a class="toggle"><div>❱</div></a></li><li><ol class="section"><li class="chapter-item "><a href="../../06_rust_api/rust_api.html"><strong aria-hidden="true">6.1.</strong> Rust API Documentation and Packages</a></li><li class="chapter-item "><a href="../../06_rust_api/rust_style_guide.html"><strong aria-hidden="true">6.2.</strong> 🦀 Rust Style Guide</a></li></ol></li><li class="chapter-item "><a href="../../07_web_api/index.html"><strong aria-hidden="true">7.</strong> Web API</a><a class="toggle"><div>❱</div></a></li><li><ol class="section"><li class="chapter-item "><a href="../../07_web_api/dbsync-explorer.html"><strong aria-hidden="true">7.1.</strong> dbSync Explorer HTTP/REST API V1</a></li><li class="chapter-item "><a href="../../07_web_api/vit-servicing-station-v0.html"><strong aria-hidden="true">7.2.</strong> VIT Servicing Station HTTP/REST API V0</a></li><li class="chapter-item "><a href="../../07_web_api/vit-testing-mock-farm-v0.html"><strong aria-hidden="true">7.3.</strong> VIT Testing Mock Farm HTTP/REST API V0</a></li><li class="chapter-item "><a href="../../07_web_api/vit-testing-mock-v0.html"><strong aria-hidden="true">7.4.</strong> VIT Testing Mock HTTP/REST API V0</a></li><li class="chapter-item "><a href="../../07_web_api/vote-ledger-v0.html"><strong aria-hidden="true">7.5.</strong> Vote Ledger HTTP/REST API V0</a></li><li class="chapter-item "><a href="../../07_web_api/vote-ledger-v1.html"><strong aria-hidden="true">7.6.</strong> Vote Ledger HTTP/REST API V1</a></li></ol></li><li class="chapter-item "><a href="../../97_CONTRIBUTING.html"><strong aria-hidden="true">8.</strong> Contributing to Catalyst Core</a></li><li class="chapter-item "><a href="../../98_CODE_OF_CONDUCT.html"><strong aria-hidden="true">9.</strong> Contributor Covenant Code of Conduct</a></li><li class="chapter-item "><a href="../../99_example_enhanced_markup.html"><strong aria-hidden="true">10.</strong> Example Enhanced Markup</a></li><li class="chapter-item affix "><a 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<h1 id="permissionless-auth"><a class="header" href="#permissionless-auth">Permissionless Auth</a></h1>
<pre><code class="language-mermaid">sequenceDiagram
actor U as User
participant B as Cardano Block Chain
participant Br as Cardano-Catalyst Bridge
participant C as Catalyst Backend
U->>B: Registeration Txn
Note right of U: Type/Public Key/Reward Address
Note over B: Block Minted
B->>Br: Reads Chain Tip, detects Registration
Br->>C: Records Latest Registration
U->>C: Requests Priviliged Operation
Note over C: Generates Random Challenge
C->>U: Challenge Sent
Note over U: Signs Challenge with Public Key
U->>C: Challenge Response
Note right of U: Public Key/Challenge Signature
Note over C: Validates Response
alt Public Key Registered & Signature Valid
C->>U: Authorized
Note left of C: Authorized<br>Session Established
loop Authorized
U->>C: Privileged Operation
C->>U: Priviliged Response
end
else Unauthorized
C->>U: Unauthorized
end
</code></pre>
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