{"id":13812956,"url":"https://github.com/neocturne/libuecc","last_synced_at":"2025-07-19T23:05:54.483Z","repository":{"id":138756326,"uuid":"203561873","full_name":"neocturne/libuecc","owner":"neocturne","description":"Very small Elliptic Curve Cryptography library","archived":false,"fork":false,"pushed_at":"2019-08-21T10:37:50.000Z","size":95,"stargazers_count":2,"open_issues_count":0,"forks_count":0,"subscribers_count":2,"default_branch":"master","last_synced_at":"2025-03-03T16:17:51.775Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":null,"language":"C","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"other","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/neocturne.png","metadata":{"files":{"readme":"README","changelog":"CHANGELOG","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}},"created_at":"2019-08-21T10:32:22.000Z","updated_at":"2022-01-22T16:20:34.000Z","dependencies_parsed_at":"2023-08-26T01:47:13.330Z","dependency_job_id":"360aa5cf-b3c9-4117-9f43-aa55c047673c","html_url":"https://github.com/neocturne/libuecc","commit_stats":null,"previous_names":["neocturne/libuecc"],"tags_count":7,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/neocturne%2Flibuecc","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/neocturne%2Flibuecc/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/neocturne%2Flibuecc/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/neocturne%2Flibuecc/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/neocturne","download_url":"https://codeload.github.com/neocturne/libuecc/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":243811970,"owners_count":20351808,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","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":[],"created_at":"2024-08-04T04:00:58.614Z","updated_at":"2025-03-16T01:25:00.815Z","avatar_url":"https://github.com/neocturne.png","language":"C","funding_links":[],"categories":["Cryptography"],"sub_categories":["Elliptic Curve Cryptography"],"readme":"libuecc is a very small generic-purpose Elliptic Curve Cryptography library\ncompatible with Ed25519.\n\nMost documentation can be found as Doxygen comments in the ecc.h header\nfile. You can use `make doxygen` after running CMake to create HTML\ndocumenation from it.\n\nThere are two sets of functions converting between libuecc's internal point\nrepresentation and coordinates or compressed representation. The functions\nending with _ed25519 use the same representation as original Ed25519\nimplementation and should be used by new software. The functions with the\nsuffix _legacy are provided for compatiblity with libuecc version before\nv6.\n\nEd25519 and the legacy representation are isomorphic, they use a Twisted\nEdwards Curve\n\n    ax^2 + y^2 = 1 + dx^2y^2\n\nover the prime field for p = 2^255 - 19.\n\nEd25519 uses the parameters\n\n    a = -1 and\n    d = -(121665/121666),\n\nwhile the legacy curve has\n\n    a = 486664\n    d = 486660.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fneocturne%2Flibuecc","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fneocturne%2Flibuecc","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fneocturne%2Flibuecc/lists"}