spruceid/sprucekit-mobile
Jan 2025 – Oct 2025
6 Months active
Languages Used
JavaKotlinRustSwiftGradleJSONMarkdownBase64
Technical Skills
Age VerificationAndroid DevelopmentAsynchronous ProgrammingCryptographyDIDDecentralized Identifiers (DIDs)
Jacob
PROFILE
Jacob
Jacob Ward contributed to spruceid/sprucekit-mobile by engineering cross-platform mobile identity solutions, focusing on secure verifiable credential workflows and mobile driver’s license (mDL) support. He implemented features such as explicit trusted DID authorization, OpenID4VP protocol handling, and ISO 18013-5/7 standards integration, using Kotlin, Rust, and Swift. Jacob enhanced certificate management by integrating production root certificates and improved reliability through robust error handling and test data management. His work addressed interoperability, security, and user experience challenges, including BLE data exchange and Android Digital Credentials API support, resulting in a well-architected, standards-compliant SDK for digital identity and credential issuance.
Overall Statistics
Feature vs Bugs
79%Features
Repository Contributions
27Total
Bugs
3
Commits
27
Features
11
Lines of code
14,775
Activity Months6
Your Network
22 people
Work History
October 2025
1 Commits
Oct 1, 2025October 2025 monthly summary for sprucekit-mobile: Delivered BLE data exchange compatibility with the updated isomdl library, fixed BLE connection handling in IsoMdlReader and MDocReader, and maintained secure cross-platform data exchange. These changes enhance reliability, security, and interoperability across devices, enabling smoother user experiences and reducing platform-friction for future isomdl upgrades.
1 Commits
Oct 1, 2025October 2025 monthly summary for sprucekit-mobile: Delivered BLE data exchange compatibility with the updated isomdl library, fixed BLE connection handling in IsoMdlReader and MDocReader, and maintained secure cross-platform data exchange. These changes enhance reliability, security, and interoperability across devices, enabling smoother user experiences and reducing platform-friction for future isomdl upgrades.
October 2025
July 2025
1 Commits • 1 Features
Jul 1, 2025July 2025 monthly summary for sprucekit-mobile (spruceid/sprucekit-mobile): Delivered a focused refresh of the Mobile Driver's License (mDL) test data to improve realism, reliability, and coverage in the mobile test suite. Updated personal information fields (names, birth dates, issuing authorities, administrative numbers) and removed driving privileges and AAMVA-specific data to align with current test scenarios and regulatory expectations. This change reduces test flakiness and ensures test datasets remain representative of real-world mDL data. Implemented as a single commit in the SpruceKit repo: afa3998ff2147ffb730b893c30340fe41cd826c2 (Update test mDL data (#168)).
July 2025
1 Commits • 1 Features
Jul 1, 2025July 2025 monthly summary for sprucekit-mobile (spruceid/sprucekit-mobile): Delivered a focused refresh of the Mobile Driver's License (mDL) test data to improve realism, reliability, and coverage in the mobile test suite. Updated personal information fields (names, birth dates, issuing authorities, administrative numbers) and removed driving privileges and AAMVA-specific data to align with current test scenarios and regulatory expectations. This change reduces test flakiness and ensures test datasets remain representative of real-world mDL data. Implemented as a single commit in the SpruceKit repo: afa3998ff2147ffb730b893c30340fe41cd826c2 (Update test mDL data (#168)).
June 2025
2 Commits • 1 Features
Jun 1, 2025Month: 2025-06 — SpruceKit-Mobile delivered key security and UX enhancements to strengthen verifiable credential flows and mDL onboarding. The team implemented DIDWeb-based Verifiable Credentials via CWT and refined verification to support DIDs, asynchronous processing, and diverse trust models. A cross-cutting fix was applied to the proofing URL path for mobile driver's licenses to ensure users are directed to the correct proofing service. These changes improve security, interoperability, and user experience for credential issuance across mobile platforms.
2 Commits • 1 Features
Jun 1, 2025Month: 2025-06 — SpruceKit-Mobile delivered key security and UX enhancements to strengthen verifiable credential flows and mDL onboarding. The team implemented DIDWeb-based Verifiable Credentials via CWT and refined verification to support DIDs, asynchronous processing, and diverse trust models. A cross-cutting fix was applied to the proofing URL path for mobile driver's licenses to ensure users are directed to the correct proofing service. These changes improve security, interoperability, and user experience for credential issuance across mobile platforms.
June 2025
May 2025
4 Commits • 3 Features
May 1, 2025May 2025 monthly summary for sprucik/sprucekit-mobile focusing on delivering cryptographic credential capabilities, improving platform reliability, and simplifying the mobile wallet UX. Key improvements include Android Digital Credentials API support with AndroidX Credentials integration, licensing clarity, and maintenance of UI/document rendering across platforms.
May 2025
4 Commits • 3 Features
May 1, 2025May 2025 monthly summary for sprucik/sprucekit-mobile focusing on delivering cryptographic credential capabilities, improving platform reliability, and simplifying the mobile wallet UX. Key improvements include Android Digital Credentials API support with AndroidX Credentials integration, licensing clarity, and maintenance of UI/document rendering across platforms.
March 2025
1 Commits • 1 Features
Mar 1, 2025Month: 2025-03 — Delivered a key security hardening feature for sprucekit-mobile by integrating the production Spruce County root certificate into the trusted root store. This enables loading DER certificates and validating certificates signed by the production Spruce County root, reducing trust errors in production and strengthening the mobile trust chain.
1 Commits • 1 Features
Mar 1, 2025Month: 2025-03 — Delivered a key security hardening feature for sprucekit-mobile by integrating the production Spruce County root certificate into the trusted root store. This enables loading DER certificates and validating certificates signed by the production Spruce County root, reducing trust errors in production and strengthening the mobile trust chain.
March 2025
January 2025
18 Commits • 5 Features
Jan 1, 2025January 2025 highlights for sprucekit-mobile: Delivered security-hardening and interoperability enhancements across the mobile driver’s license workflow, with cross-platform mDL support and ISO 18013-7/5 integration. Strengthened authorization by introducing explicit trusted DIDs for Holder verification, improved OpenID4VP handling, and expanded cryptographic utilities. Implemented ISO 18013-5 age verification with deduplication and field mappings. Enhanced reliability by adding missing-fields reporting in 18013-7 and extended test utilities for robust QA. These changes collectively reduce risk, improve compliance and interoperability, accelerate downstream integrations, and enable richer user flows on Android, iOS, and Rust-based components.
January 2025
18 Commits • 5 Features
Jan 1, 2025January 2025 highlights for sprucekit-mobile: Delivered security-hardening and interoperability enhancements across the mobile driver’s license workflow, with cross-platform mDL support and ISO 18013-7/5 integration. Strengthened authorization by introducing explicit trusted DIDs for Holder verification, improved OpenID4VP handling, and expanded cryptographic utilities. Implemented ISO 18013-5 age verification with deduplication and field mappings. Enhanced reliability by adding missing-fields reporting in 18013-7 and extended test utilities for robust QA. These changes collectively reduce risk, improve compliance and interoperability, accelerate downstream integrations, and enable richer user flows on Android, iOS, and Rust-based components.
Activity
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Quality Metrics
Correctness87.8%
Maintainability85.2%
Architecture86.4%
Performance78.6%
AI Usage22.2%
Skills & Technologies
Programming Languages
Base64GradleJSONJavaKotlinMarkdownRustSwift
Technical Skills
Age VerificationAndroid DevelopmentAsynchronous ProgrammingBluetooth Low Energy (BLE)Build System ConfigurationCertificate ManagementCross-Platform DevelopmentCross-platform DevelopmentCryptographyDIDData ManagementDecentralized Identifiers (DIDs)Dependency ManagementDigital CredentialsDigital Identity
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