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Here Argon2 library is compiled for browser runtime.\n\n[Live demo](https://antelle.github.io/argon2-browser)\n\n[More about Argon2](https://github.com/P-H-C/phc-winner-argon2)\n\n[Usage](#usage)\n\n## The numbers\n\n| | Time, ms (lower is better) |\n|-------------------|----------------------------|\n| Chrome WASM | 225 |\n| Chrome WASM+SIMD | 119 |\n| Firefox WASM | 195 |\n| Firefox WASM+SIMD | 135 |\n| Safari WASM | 174 |\n| Native -O3 SSE | 15 |\n| Native -O3 | 42 |\n| Native -O1 | 55 |\n| Native -O0 | 395 |\n\n## Test Environment\n\nEnvironment used to get the numbers above:\n\nAlgorithm parameters (`-d -t 100 -m 10 -p 1`):\n- iterations: 100\n- memory: 1MiB (1024 KiB)\n- hash length: 32\n- parallelism: 1\n- argon2d\n\nEnvironment:\n\n- MacBook pro 2020, Intel Core i7, 2.3GHz (x64), macOS 10.14.6 (18G95)\n- Chrome 85.0.4183.83 (Official Build)\n- Firefox 80.0.1\n- Safari 13.1.2 (15609.3.5.1.3)\n- native argon2 compiled from https://github.com/P-H-C/phc-winner-argon2 @440ceb9\n\n## Code size\n\n`ll -h dist`\n\n| File | Code size, kB |\n|-------------|---------------|\n| argon2.js | 14 |\n| argon2.wasm | 25 |\n\n## Is Argon2 modified?\n\nNo, it's used a submodule from upstream.\n\n## SIMD\n\nSIMD is not quite here in WebAssembly, however for those who would like to give it a try,\nwe already provide a working build with SIMD. At the moment it works only in Chrome,\nto be able to use it, you need to either add\n[this origin trial](https://developers.chrome.com/origintrials/#/view_trial/-4708513410415853567) to your website,\nor enable the SIMD feature in Chrome flags.\n\nMore about WebAssembly SIMD support in V8: https://v8.dev/features/simd\n\nOn Firefox you need to enable `javascript.options.wasm_simd` option in about:config.\n\nTo use the SIMD version, load `argon2-simd.wasm` instead of `argon2.wasm`.\n\n## JS Library\n\nThe library can be installed from npm:\n```bash\nnpm install argon2-browser\n```\n\nThen add this script to your HTML or use your favorite bundler:\n```html\n\n```\n\nAlternatively, you can use the bundled version, this way you can include just one script:\n```html\n\n```\n\nCalculate the hash:\n```javascript\nargon2.hash({ pass: 'password', salt: 'somesalt' })\n .then(h => console.log(h.hash, h.hashHex, h.encoded))\n .catch(e => console.error(e.message, e.code))\n```\n\nVerify the encoded hash (if you need it):\n```javascript\nargon2.verify({ pass: 'password', encoded: 'enc-hash' })\n .then(() => console.log('OK'))\n .catch(e => console.error(e.message, e.code))\n```\n\nOther parameters:\n```javascript\nargon2.hash({\n // required\n pass: 'password',\n salt: 'salt',\n // optional\n time: 1, // the number of iterations\n mem: 1024, // used memory, in KiB\n hashLen: 24, // desired hash length\n parallelism: 1, // desired parallelism (it won't be computed in parallel, however)\n secret: new Uint8Array([...]), // optional secret data\n ad: new Uint8Array([...]), // optional associated data\n type: argon2.ArgonType.Argon2d, // Argon2d, Argon2i, Argon2id\n})\n// result\n.then(res => {\n res.hash // hash as Uint8Array\n res.hashHex // hash as hex-string\n res.encoded // encoded hash, as required by argon2\n})\n// or error\n.catch(err => {\n err.message // error message as string, if available\n err.code // numeric error code\n})\n```\n\n```javascript\nargon2.verify({\n // required\n pass: 'password',\n encoded: 'enc-hash',\n // optional\n secret: new Uint8Array([...]), // optional secret data\n ad: new Uint8Array([...]), // optional associated data\n type: argon2.ArgonType.Argon2d, // Argon2d, Argon2i, Argon2id. default: guess\n})\n// result\n.then(res => {\n res.hash // hash as Uint8Array\n res.hashHex // hash as hex-string\n res.encoded // encoded hash, as required by argon2\n})\n// or error\n.catch(err => {\n err.message // error message as string, if available\n err.code // numeric error code\n})\n```\n\n## Usage\n\nYou can use this module in several ways: \n\n1. write the WASM loader manually, for example, if you need more control over memory ([example](docs/js/calc.js));\n2. bundle it with WebPack or another bundler ([example](examples/webpack));\n3. in vanilla js: [example](examples/vanilla);\n4. in node.js: [example](examples/node) (see a note below).\n\n## Bundlers\n\n- WebPack: [examples/webpack](https://github.com/antelle/argon2-browser/tree/master/examples/webpack)\n- create-react-app: [examples/react](https://github.com/antelle/argon2-browser/tree/master/examples/react). Derived from [#38](https://github.com/antelle/argon2-browser/issues/38#issuecomment-749690581)\n\n## Node.js support\n\nOf course you [can use](examples/node) generated WASM in node.js, but it's not sensible: you will get much better speed by compiling it as a native node.js addon, which is not that hard. Wait, it's already done, just install [this package](https://github.com/ranisalt/node-argon2).\n\n## Is it used anywhere?\n\nIt is! [KeeWeb](https://github.com/keeweb/keeweb) (web-based password manager) is using it as a password hashing function implementation.\n[Check out the source code](https://github.com/keeweb/keeweb/blob/develop/app/scripts/util/kdbxweb/kdbxweb-init.js#L11), if you're interested.\n\n## Building\n\nYou can build everything with\n```bash\n./build.sh\n```\n\nPrerequisites:\n- emscripten with WebAssembly support ([howto](http://webassembly.org/getting-started/developers-guide/))\n- CMake\n\n## License\n\n[MIT](https://opensource.org/licenses/MIT)\n","readmeFilename":"README.md"}