Run results for: hash-wasm vs Web Crypto API

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.5 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 18

Operating system: iOS 18.5

Device Platform: Mobile

Date tested: one year ago

webcrypto sha256

1.5M/s

webcrypto sha1

1.5M/s

wasm sha1

148K/s

wasm sha256

116K/s

View exact numbers

Test name	Executions per second
✓ webcrypto sha256	1,497,387 Ops/sec
webcrypto sha1	1,470,812 Ops/sec
wasm sha1	147,746 Ops/sec
wasm sha256	116,117 Ops/sec

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/hash-wasm@4"></script>

Script Preparation code:

var data = new Uint32Array(1024);
window.crypto.getRandomValues(data);
var dataBuffer = new Uint8Array(data);
data = String.fromCharCode.apply(null, dataBuffer);

Tests:

wasm sha256
console.log(hashwasm.sha256(data));
webcrypto sha256
crypto.subtle.digest("SHA-256", dataBuffer).then(function (hash) {console.log(hash);});
wasm sha1
console.log(hashwasm.sha1(data));
webcrypto sha1
crypto.subtle.digest("SHA-1", dataBuffer).then(function (hash) {console.log(hash);});