免费 · 安全与隐私
Shamir 秘密共享.
把密码、助记词或密钥拆分成多份，只要凑齐指定份数即可恢复，全部在浏览器中完成。
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使用方法: Shamir 秘密共享
输入数据或选择文件，调整设置并生成结果。复制或下载之前，请检查结果。
限制与支持格式
输入内容在您的设备上处理。
英语技术说明
Up to 4,096 bytes and 255 shares. A damaged share gives a wrong result without warning: test recovery once. Everything is calculated in your browser; nothing you type is uploaded.
Shamir’s scheme over GF(256): each byte is the constant term of a random polynomial of degree k − 1 (random coefficients from the browser’s secure generator); recovery uses Lagrange interpolation at zero.
“correct horse battery staple” split into 5 shares with a threshold of 3 can be rebuilt from any 3 shares; 2 shares reveal nothing.