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jsbn

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The jsbn library is a fast, portable implementation of large-number math in pure JavaScript, enabling public-key crypto and other applications on desktop and mobile browsers.

4
Versions
MIT
License
No
Install Scripts
Missing
Provenance

Supply chain provenance

Status for the latest visible version.

No SLSA provenance npm registry signatures gitHead linked

Without SLSA provenance there is no cryptographic link between this tarball and the public source — the axios compromise (March 2026) relied on exactly this gap.

Maintainers

andyperlitch

Keywords

bigintegerbignumberbiginteger

Accepted risks

Findings the reviewer chose to accept rather than block on.

SourceRuleReasonAccepted byWhen
npm-metadata suspicious-initial-version AI (npm-metadata): jsbn 0.0.0 is a 13-year-old initial npm packaging of a well-known crypto library; the 0.0.0 version is a historical artifact, not a malicious signal. ai
license uncommon-license:BSD AI (license): BSD is a well-recognized permissive open-source license; the analyzer's list simply doesn't include it, but it poses no legal or security risk. ai

Versions (showing 4 of 4)

Version Deps Published
1.1.0 0 / 0
0.1.1 0 / 0
0.1.0 0 / 0
0.0.0 0 / 0

v0.1.1

1 finding
LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v0.1.0

1 finding
LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v0.0.0

1 finding
LOW No provenance attestation provenance

Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.