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sharedsecret\n\n[![codecov](https://codecov.io/gh/posener/sharedsecret/branch/master/graph/badge.svg)](https://codecov.io/gh/posener/sharedsecret)\n[![GoDoc](https://img.shields.io/badge/pkg.go.dev-doc-blue)](http://pkg.go.dev/github.com/posener/sharedsecret)\n\nPackage sharedsecret is implementation of Shamir's Secret Sharing algorithm.\n\nShamir's Secret Sharing is an algorithm in cryptography created by Adi Shamir. It is a form of\nsecret sharing, where a secret is divided into parts, giving each participant its own unique\npart. To reconstruct the original secret, a minimum number of parts is required. In the threshold\nscheme this number is less than the total number of parts. Otherwise all participants are needed\nto reconstruct the original secret.\nSee [wiki page](https://en.wikipedia.org/wiki/Shamir's_Secret_Sharing).\n\n## Examples\n\n### Distribute\n\nWith the `Distribute` function, a given secret can be distributed to shares.\n\n```golang\nsecret := big.NewInt(120398491412912873)\n\n// Create 5 shares that 3 or more of them can recover the secret.\nshares := Distribute(secret, 5, 3)\n\n// We can recover from only 3 (or more) shares:\nrecovered := Recover(shares[1], shares[3], shares[0])\n\nfmt.Println(recovered)\n```\n\n Output:\n\n```\n120398491412912873\n```\n\n### New\n\nWith the `New` function, a random secret is generated and distributed into shares. Both the\nsecret and the shares are returned.\n\n```golang\n// Create 5 shares that 3 or more of them can recover the secret.\nshares, secret := New(5, 3)\n\n// Now we should distribute the shares to different parties and forget about the shares and\n// secret. Once the original secret is needed, at least 3 shares should be used in order to\n// recover it:\n\n// We can't recover from only 2 shares:\nwrong := Recover(shares[1], shares[3])\n\n// We can recover from only 3 (or more) shares:\ncorrect := Recover(shares[1], shares[3], shares[0])\n\nfmt.Println(secret.Cmp(wrong) != 0, secret.Cmp(correct) == 0)\n```\n\n Output:\n\n```\ntrue true\n```\n\n---\nReadme created from Go doc with [goreadme](https://github.com/posener/goreadme)\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fposener%2Fsharedsecret","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fposener%2Fsharedsecret","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fposener%2Fsharedsecret/lists"}