microsoft/CoseSignTool
Apr 2025 – Jan 2026
7 Months active
Languages Used
C#BashMarkdownPowerShellXMLYAML
Technical Skills
Azure developmentAzure integrationC#C# programmingCI/CDNUnit
Jeromy Statia (from Dev Box)
PROFILE
Jeromy Statia (from Dev Box)
Jasdeep Statia developed advanced signing and certificate management features for the microsoft/CoseSignTool repository, focusing on secure, extensible workflows and regulatory compliance. Over seven months, Jasdeep delivered plugin-based certificate provider architecture, SCITT-compliant CWT claims, and robust COSE header handling, all backed by comprehensive unit testing and detailed documentation. Using C#, .NET, and YAML-driven CI/CD, Jasdeep modernized authentication, improved cryptographic reliability, and streamlined build automation. The work included Azure integration, asynchronous programming, and multi-targeting for .NET Standard and .NET 8.0, resulting in a maintainable, testable codebase that supports flexible signing scenarios and reduces integration friction for downstream consumers.
Overall Statistics
Feature vs Bugs
82%Features
Repository Contributions
86Total
Bugs
9
Commits
86
Features
41
Lines of code
51,626
Activity Months7
Your Network
4438 peopleSame Organization
@microsoft.com4432
GitOpsMember
Ananta GuptaMember
Abigail HartmanMember
Abram SandersonMember
Adam EttenbergerMember
Ami HollanderMember
AndersMember
Andrej KyselicaMember
Andrew MalkovMember
Work History
January 2026
1 Commits • 1 Features
Jan 1, 2026January 2026 monthly summary for microsoft/CoseSignTool focused on feature delivery and quality uplift. Delivered IndirectSignature Payload Location Support, enabling URI-based payload retrieval and inclusion of payload location in signature headers per RFC 9054. Implemented end-to-end through CLI, factory wiring, and header extension, with comprehensive tests and documentation updates. This milestone enhances interoperability and compliance for signature payload handling in IndirectSignature workflows. No major bugs fixed this month; effort concentrated on delivering a robust core capability with test coverage and clear docs.
1 Commits • 1 Features
Jan 1, 2026January 2026 monthly summary for microsoft/CoseSignTool focused on feature delivery and quality uplift. Delivered IndirectSignature Payload Location Support, enabling URI-based payload retrieval and inclusion of payload location in signature headers per RFC 9054. Implemented end-to-end through CLI, factory wiring, and header extension, with comprehensive tests and documentation updates. This milestone enhances interoperability and compliance for signature payload handling in IndirectSignature workflows. No major bugs fixed this month; effort concentrated on delivering a robust core capability with test coverage and clear docs.
January 2026
December 2025
17 Commits • 6 Features
Dec 1, 2025December 2025: Delivered key enhancements and modernization across the signing tool, focusing on business value, reliability, and future-proofing. Implemented advanced COSE/CWT claims capabilities, introduced SCITT compliance controls, cleaned up branding, improved resilience with async cancellation, and modernized platform cryptography and targets. These changes collectively improve signature flexibility, trust, and developer productivity while maintaining backward compatibility.
December 2025
17 Commits • 6 Features
Dec 1, 2025December 2025: Delivered key enhancements and modernization across the signing tool, focusing on business value, reliability, and future-proofing. Implemented advanced COSE/CWT claims capabilities, introduced SCITT compliance controls, cleaned up branding, improved resilience with async cancellation, and modernized platform cryptography and targets. These changes collectively improve signature flexibility, trust, and developer productivity while maintaining backward compatibility.
November 2025
38 Commits • 20 Features
Nov 1, 2025November 2025 monthly summary: This period focused on delivering SCITT-compliant CWT claims, expanding signing capabilities via a plugin-based certificate provider framework, and strengthening test coverage and documentation. Key features delivered include SCITT-compliant CWT claims integration in CoseSignTool, enabled by the new CoseSign1.Headers library and TryGetCwtClaims helper, plus end-to-end RFC 9597 CWT claims with SCITT flows and comprehensive DID:X509 guidance. Implemented certificate provider plugin architecture and Azure Trusted Signing plugin, including CertificateProviderPluginManager and plugin loading, with SignCommand/IndirectSignatureCommand integration and enhanced help/docs to surface provider options. Did X509 improvements include a new Azure Trusted Signing DID:X509 generator, EKU policy alignment/refactor, and base64url encoding to comply with the spec. Test coverage was expanded across critical signing paths, achieving 100% line coverage for core components (CertificateCoseSigningKeyProvider, CoseSigningKeyProviderExtensions, X509 utilities, CWT claim extenders) and validating a total of 762 tests across the solution. Business value achieved includes stronger regulatory compliance (SCITT, RFC 9597), more secure and auditable signing workflows, and a scalable, extensible signing platform through the plugin architecture, reducing vendor lock-in and accelerating onboarding of new certificate providers. Technologies demonstrated include C#, .NET 8, COSE/CWT, CBOR, DID:X509, SCITT, NUnit, FluentAssertions, Azure Identity, and a modular Certificate Provider plugin architecture.
38 Commits • 20 Features
Nov 1, 2025November 2025 monthly summary: This period focused on delivering SCITT-compliant CWT claims, expanding signing capabilities via a plugin-based certificate provider framework, and strengthening test coverage and documentation. Key features delivered include SCITT-compliant CWT claims integration in CoseSignTool, enabled by the new CoseSign1.Headers library and TryGetCwtClaims helper, plus end-to-end RFC 9597 CWT claims with SCITT flows and comprehensive DID:X509 guidance. Implemented certificate provider plugin architecture and Azure Trusted Signing plugin, including CertificateProviderPluginManager and plugin loading, with SignCommand/IndirectSignatureCommand integration and enhanced help/docs to surface provider options. Did X509 improvements include a new Azure Trusted Signing DID:X509 generator, EKU policy alignment/refactor, and base64url encoding to comply with the spec. Test coverage was expanded across critical signing paths, achieving 100% line coverage for core components (CertificateCoseSigningKeyProvider, CoseSigningKeyProviderExtensions, X509 utilities, CWT claim extenders) and validating a total of 762 tests across the solution. Business value achieved includes stronger regulatory compliance (SCITT, RFC 9597), more secure and auditable signing workflows, and a scalable, extensible signing platform through the plugin architecture, reducing vendor lock-in and accelerating onboarding of new certificate providers. Technologies demonstrated include C#, .NET 8, COSE/CWT, CBOR, DID:X509, SCITT, NUnit, FluentAssertions, Azure Identity, and a modular Certificate Provider plugin architecture.
November 2025
August 2025
2 Commits
Aug 1, 2025August 2025 (microsoft/CoseSignTool): Focused on stabilizing NuGet packaging versioning in CI/CD. Implemented propagation of the VersionNgt version through the .NET publish and NuGet pack steps and standardized removal of a leading 'v' from version tags to ensure consistent artifacts and metadata. Result: more reliable package builds, reduced versioning-related failures, and improved reproducibility for downstream consumers.
August 2025
2 Commits
Aug 1, 2025August 2025 (microsoft/CoseSignTool): Focused on stabilizing NuGet packaging versioning in CI/CD. Implemented propagation of the VersionNgt version through the .NET publish and NuGet pack steps and standardized removal of a leading 'v' from version tags to ensure consistent artifacts and metadata. Result: more reliable package builds, reduced versioning-related failures, and improved reproducibility for downstream consumers.
July 2025
22 Commits • 12 Features
Jul 1, 2025July 2025 monthly summary for microsoft/CoseSignTool focused on delivering secure signing capabilities, platform reliability, and developer experience improvements. The team shipped foundational COSE signing infrastructure, enhanced PFX handling, expanded plugin capabilities with comprehensive documentation, modernized authentication, and codebase hygiene across packages and tests. The work reduces security risk, improves cross-platform reliability, and accelerates safe plugin adoption and Azure Code Transparency Service integrations.
22 Commits • 12 Features
Jul 1, 2025July 2025 monthly summary for microsoft/CoseSignTool focused on delivering secure signing capabilities, platform reliability, and developer experience improvements. The team shipped foundational COSE signing infrastructure, enhanced PFX handling, expanded plugin capabilities with comprehensive documentation, modernized authentication, and codebase hygiene across packages and tests. The work reduces security risk, improves cross-platform reliability, and accelerates safe plugin adoption and Azure Code Transparency Service integrations.
July 2025
May 2025
2 Commits • 1 Features
May 1, 2025May 2025 performance summary for microsoft/CoseSignTool focused on extending COSE header handling to increase flexibility, interoperability, and security in signing workflows. Delivered header extender support for IndirectSignatureFactory, enabling optional and chained extenders, with corresponding interfaces and chaining logic. No major bugs fixed this month. This work improves downstream integration, configurability, and robustness of COSE header processing.
May 2025
2 Commits • 1 Features
May 1, 2025May 2025 performance summary for microsoft/CoseSignTool focused on extending COSE header handling to increase flexibility, interoperability, and security in signing workflows. Delivered header extender support for IndirectSignatureFactory, enabling optional and chained extenders, with corresponding interfaces and chaining logic. No major bugs fixed this month. This work improves downstream integration, configurability, and robustness of COSE header processing.
April 2025
4 Commits • 1 Features
Apr 1, 2025April 2025 monthly summary: Delivered AzureTrustedSigningCoseSigningKeyProvider implementing CertificateCoseSigningKeyProvider for Azure Trusted Signing in microsoft/CoseSignTool. Implemented methods to retrieve signing certificates, certificate chains, and RSA keys; added comprehensive unit tests. Updated CI/CD pipeline (dotnet.yml) to include the new project; created project scaffolding and dependencies. Enhanced documentation (CoseSign1.Certificates.AzureTrustedSigning.md) and unit test docs. Improvements enable secure, automated signing with Azure Trust, reduce manual steps, and improve test coverage and deployment reliability.
4 Commits • 1 Features
Apr 1, 2025April 2025 monthly summary: Delivered AzureTrustedSigningCoseSigningKeyProvider implementing CertificateCoseSigningKeyProvider for Azure Trusted Signing in microsoft/CoseSignTool. Implemented methods to retrieve signing certificates, certificate chains, and RSA keys; added comprehensive unit tests. Updated CI/CD pipeline (dotnet.yml) to include the new project; created project scaffolding and dependencies. Enhanced documentation (CoseSign1.Certificates.AzureTrustedSigning.md) and unit test docs. Improvements enable secure, automated signing with Azure Trust, reduce manual steps, and improve test coverage and deployment reliability.
April 2025
Activity
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Quality Metrics
Correctness96.8%
Maintainability92.4%
Architecture93.6%
Performance89.0%
AI Usage25.2%
Skills & Technologies
Programming Languages
BashC#MarkdownPowerShellXMLYAML
Technical Skills
.NET.NET developmentAPI DesignAPI DevelopmentAPI DocumentationAPI developmentAsynchronous ProgrammingAuthenticationAzureAzure SDKAzure SDK integrationAzure developmentAzure integrationAzure servicesBackend Development
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