{"id":50487015,"url":"https://github.com/systemslibrarian/crypto-lab-sphincs-ledger","last_synced_at":"2026-06-01T23:03:33.780Z","repository":{"id":349527172,"uuid":"1202713478","full_name":"systemslibrarian/crypto-lab-sphincs-ledger","owner":"systemslibrarian","description":"Browser-based demo of SLH-DSA (SPHINCS+), a hash-based post-quantum digital signature scheme standardized as NIST FIPS 205","archived":false,"fork":false,"pushed_at":"2026-04-11T22:48:45.000Z","size":120,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":0,"default_branch":"main","last_synced_at":"2026-04-12T00:33:23.255Z","etag":null,"topics":["browser-demo","crypto-lab","cryptography","digital-signatures","hash-based-signatures","javascript","nist-fips-205","post-quantum-cryptography","slh-dsa","sphincs-plus"],"latest_commit_sha":null,"homepage":"https://systemslibrarian.github.io/crypto-lab-sphincs-ledger/","language":null,"has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/systemslibrarian.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null,"zenodo":null,"notice":null,"maintainers":null,"copyright":null,"agents":null,"dco":null,"cla":null}},"created_at":"2026-04-06T10:15:14.000Z","updated_at":"2026-04-11T22:48:50.000Z","dependencies_parsed_at":null,"dependency_job_id":null,"html_url":"https://github.com/systemslibrarian/crypto-lab-sphincs-ledger","commit_stats":null,"previous_names":["systemslibrarian/sphincs-ledger","systemslibrarian/crypto-lab-sphincs-ledger"],"tags_count":null,"template":false,"template_full_name":null,"purl":"pkg:github/systemslibrarian/crypto-lab-sphincs-ledger","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/systemslibrarian%2Fcrypto-lab-sphincs-ledger","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/systemslibrarian%2Fcrypto-lab-sphincs-ledger/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/systemslibrarian%2Fcrypto-lab-sphincs-ledger/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/systemslibrarian%2Fcrypto-lab-sphincs-ledger/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/systemslibrarian","download_url":"https://codeload.github.com/systemslibrarian/crypto-lab-sphincs-ledger/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/systemslibrarian%2Fcrypto-lab-sphincs-ledger/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":33797128,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-05-26T15:22:16.424Z","status":"online","status_checked_at":"2026-06-01T02:00:06.963Z","response_time":115,"last_error":null,"robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":true,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["browser-demo","crypto-lab","cryptography","digital-signatures","hash-based-signatures","javascript","nist-fips-205","post-quantum-cryptography","slh-dsa","sphincs-plus"],"created_at":"2026-06-01T23:03:30.348Z","updated_at":"2026-06-01T23:03:33.773Z","avatar_url":"https://github.com/systemslibrarian.png","language":null,"funding_links":[],"categories":[],"sub_categories":[],"readme":"# crypto-lab-sphincs-ledger\n\n## What It Is\n\nThis project is a browser demo of SLH-DSA (SPHINCS+), with supporting SHA-256 Merkle tree and WOTS+ visualizations that make the signing flow easier to inspect. SLH-DSA solves the digital-signature problem: a signer produces a public verifiable proof that a message came from the holder of the private key and was not modified. The scheme is an asymmetric, hash-based, post-quantum signature system standardized in NIST FIPS 205. In this demo, the security story is presented honestly: the production signing path is SLH-DSA, while the Merkle tree and WOTS+ tabs are educational views of the primitives beneath it.\n\n## When to Use It\n\n- Use it for long-lived software releases or archive signatures when conservative post-quantum assurances matter more than compact signatures.\n- Use it for offline or low-frequency signing workflows because SLH-DSA trades very large signatures for a hash-only security foundation.\n- Use it for teaching or internal reviews when you need to show how SHA-256 Merkle trees, WOTS+, and SLH-DSA fit together in one place.\n- Do not use it for bandwidth-sensitive or latency-sensitive protocols because the signature sizes in the implemented parameter sets are much larger than RSA, Ed25519, or ML-DSA.\n\n## Live Demo\n\nLive demo: [https://systemslibrarian.github.io/crypto-lab-sphincs-ledger/](https://systemslibrarian.github.io/crypto-lab-sphincs-ledger/)\n\nThe demo lets you generate keys, sign messages, verify signatures, inspect a SHA-256 Merkle tree authentication path, experiment with a WOTS+ chain reveal, and append signed entries to a browser-side ledger. The main controls are the Parameter set selector, Message to sign textarea, Number of leaves selector, Message nibble input, and Chain index input.\n\n## How to Run Locally\n\n```bash\ngit clone https://github.com/systemslibrarian/crypto-lab-sphincs-ledger.git\ncd crypto-lab-sphincs-ledger/demos/sphincs-ledger\nnpm install\nnpm run dev\n```\n\nNo environment variables are required.\n\n## Part of the Crypto-Lab Suite\n\nThis demo is one part of the broader Crypto-Lab suite at [https://systemslibrarian.github.io/crypto-lab/](https://systemslibrarian.github.io/crypto-lab/).\n\nWhether you eat or drink or whatever you do, do it all for the glory of God. — 1 Corinthians 10:31","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fsystemslibrarian%2Fcrypto-lab-sphincs-ledger","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fsystemslibrarian%2Fcrypto-lab-sphincs-ledger","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fsystemslibrarian%2Fcrypto-lab-sphincs-ledger/lists"}