29 lines
672 B
JavaScript
29 lines
672 B
JavaScript
const testAPI = function(){
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"use strict";
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const digest = crypto.subtle? crypto.subtle.digest.bind(crypto.subtle, "SHA-256"): function(buffer){
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return new Uint32Array(buffer.buffer);
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};
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function bufferToString(hash){
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const chunks = [];
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(new Uint32Array(hash)).forEach(function(num){
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chunks.push(num.toString(16));
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});
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return chunks.map(function(chunk){
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return "0".repeat(8 - chunk.length) + chunk;
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}).join("");
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}
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return {
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hash: async function(input){
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const buffer = ((typeof input) === "string")?
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new TextEncoder("utf-8").encode(input):
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input;
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const hash = await digest(buffer);
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return bufferToString(hash);
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}
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};
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}(); |