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PROFILE

Oleksiipiliugin

Worked on the affinidi/affinidi-ssi-dart repository to enhance decentralized identity and verifiable credential workflows, focusing on data integrity, multi-key DID management, and robust JWT issuance. Leveraged Dart and blockchain development skills to implement multi-key support for did:web and did:peer:2, introducing unified verification method mapping and collision-resistant fragment IDs using JWK thumbprints and SHA-256. Improved JSON-LD error handling, exception propagation, and revocation list parsing for reliable credential verification. Strengthened test coverage and ensured monorepo tooling compatibility, while refining issuer handling in JWT flows. The work emphasized security, interoperability, and maintainability across decentralized identity management and backend systems.

Overall Statistics

Feature vs Bugs

75%Features

Repository Contributions

6Total
Bugs
1
Commits
6
Features
3
Lines of code
5,061
Activity Months4

Work History

April 2026

2 Commits • 1 Features

Apr 1, 2026

April 2026 monthly summary for affinidi/affinidi-ssi-dart focused on delivering multi-key DID management improvements and JWT issuance enhancements. Implemented multi-key support across DID methods (did:web and did:peer:2) with unified verification method mapping and improved fragment handling, boosting interoperability and security for credential issuance. Stabilized VM fragment IDs using RFC 7638 JWK thumbprints and SHA-256 hashing, replacing the previous key-<index> scheme to ensure collision-resistance during key rotation. Enhanced issuer handling in JWT flows and aligned proof generation (using didKeyId for verificationMethod and JWT kid), with fixes to sign-credentials-jwt verification. Extended keyAgreement support for P-256, P-384, and P-521 in did:peer:0; expanded test coverage across did prefixes and issuer formats; and performed backport work to align did:web manager and formatting. Demonstrated strong Dart, cryptography, and end-to-end DID/JWT workflow skills with tangible business value in interoperability, security, and reliability.

February 2026

1 Commits • 1 Features

Feb 1, 2026

February 2026 monthly review for affinidi/affinidi-ssi-dart focused on enabling robust DID management through multi-key support and strengthening test coverage. No major bug fixes were reported this month; the team concentrated on delivering a security-friendly feature, validating it with comprehensive tests, and ensuring maintainability across the monorepo.

December 2025

2 Commits • 1 Features

Dec 1, 2025

December 2025 monthly summary for affinidi-ssi-dart: Implemented Data Integrity Processing Robustness Improvements to strengthen data verification for decentralized identifiers and verifiable credentials. The work focuses on robust JSON-LD error handling and exception propagation, together with enhanced revocation list parsing that supports string and numeric revocationListIndex via utility conversions, backed by comprehensive tests. These changes improve reliability in production data processing and reduce downstream error rates.

October 2025

1 Commits

Oct 1, 2025

Monthly summary for 2025-10: Focused on hardening Verifiable Credential handling in affinidi/affinidi-ssi-dart. Implemented enforcement of VerifiableCredential type in VcDataModelV2, ensuring the 'type' field includes VerifiableCredential; throws SsiException when missing. Added unit tests covering this validation scenario. Commit reference: c77c7886bd5e0f49c3b07f4648e93466656583e4. Overall, improved data integrity and security of credential issuance/verification flows.

Activity

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Quality Metrics

Correctness93.4%
Maintainability86.6%
Architecture86.6%
Performance86.6%
AI Usage40.0%

Skills & Technologies

Programming Languages

Dart

Technical Skills

API ValidationBlockchain DevelopmentDartData ModelingDecentralized Identity ManagementJSON-LD processingTestingVerifiable Credentialsbackend developmentdata integrity verificationdecentralized identity managementexception handlingunit testing

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

affinidi/affinidi-ssi-dart

Oct 2025 Apr 2026
4 Months active

Languages Used

Dart

Technical Skills

API ValidationData ModelingTestingVerifiable CredentialsDartJSON-LD processing