An Evidence-driven Protocol for Trustworthy CI Pipelines

Fuente: arXiv
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Autores principales: Castillo, Fernando, Brito, Eduardo, Pullonen-Raudvere, Pille, Werner, Sebastian, Tai, Stefan
Formato: Preprint
Publicado: 2026
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author Castillo, Fernando
Brito, Eduardo
Pullonen-Raudvere, Pille
Werner, Sebastian
Tai, Stefan
author_facet Castillo, Fernando
Brito, Eduardo
Pullonen-Raudvere, Pille
Werner, Sebastian
Tai, Stefan
contents Enterprise software supply chains are increasingly vulnerable to infrastructure attacks, resulting in financial and reputational damage. Ensuring the integrity and provenance of software artifacts remains a significant challenge, where re-execution of the build and tests by every consumer to guarantee provenance produces a verification bottleneck and credibility reduction. This paper presents an evidence-driven protocol for trustworthy Continuous Integration (CI) pipelines that combines Deterministic Build Systems (DBS) with Trusted Execution Environments (TEEs). The approach provides cryptographically verifiable guarantees of integrity, authenticity, and attestation for CI artifacts in distributed environments, reducing implicit trust without requiring costly re-execution by consumers. We introduce a protocol that binds deterministic builds with TEE-based attestations, formalizing the evidence life cycle, together with a practical implementation using Nix and Intel TDX. Experimental results show that artifact verification is reduced from redundant computation to lightweight signature and policy checks. These findings demonstrate that evidence-driven CI pipelines establish scalable and verifiable trust in digital infrastructure, effectively amortizing the initial computational overhead introduced by TEEs.
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id arxiv_https___arxiv_org_abs_2605_21089
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle An Evidence-driven Protocol for Trustworthy CI Pipelines
Castillo, Fernando
Brito, Eduardo
Pullonen-Raudvere, Pille
Werner, Sebastian
Tai, Stefan
Cryptography and Security
Enterprise software supply chains are increasingly vulnerable to infrastructure attacks, resulting in financial and reputational damage. Ensuring the integrity and provenance of software artifacts remains a significant challenge, where re-execution of the build and tests by every consumer to guarantee provenance produces a verification bottleneck and credibility reduction. This paper presents an evidence-driven protocol for trustworthy Continuous Integration (CI) pipelines that combines Deterministic Build Systems (DBS) with Trusted Execution Environments (TEEs). The approach provides cryptographically verifiable guarantees of integrity, authenticity, and attestation for CI artifacts in distributed environments, reducing implicit trust without requiring costly re-execution by consumers. We introduce a protocol that binds deterministic builds with TEE-based attestations, formalizing the evidence life cycle, together with a practical implementation using Nix and Intel TDX. Experimental results show that artifact verification is reduced from redundant computation to lightweight signature and policy checks. These findings demonstrate that evidence-driven CI pipelines establish scalable and verifiable trust in digital infrastructure, effectively amortizing the initial computational overhead introduced by TEEs.
title An Evidence-driven Protocol for Trustworthy CI Pipelines
topic Cryptography and Security
url https://arxiv.org/abs/2605.21089