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var vector = global.crypto.getRandomValues(new Uint8Array(16))
var key = null
module.exports = {
encrypt,
decrypt,
convertArrayBufferViewtoString,
keyFromPassword,
}
// Takes a Pojo, returns encrypted text.
function encrypt (password, dataObj) {
var data = JSON.stringify(dataObj)
global.crypto.subtle.encrypt({name: 'AES-CBC', iv: vector}, key, convertStringToArrayBufferView(data)).then(function(result){
const encryptedData = new Uint8Array(result)
return encryptedData
},
function(e){
console.log(e.message)
})
}
// Takes encrypted text, returns the restored Pojo.
function decrypt (password, text) {
}
function convertStringToArrayBufferView (str) {
var bytes = new Uint8Array(str.length)
for (var i = 0; i < str.length; i++) {
bytes[i] = str.charCodeAt(i)
}
return bytes
}
function convertArrayBufferViewtoString (buffer) {
var str = ''
for (var i = 0; i < buffer.byteLength; i++) {
str += String.fromCharCode(buffer[i])
}
return str
}
function keyFromPassword (password) {
global.crypto.subtle.digest({name: 'SHA-256'}, convertStringToArrayBufferView(password)).then(function(result){
return global.crypto.subtle.importKey('raw', result, {name: 'AES-CBC'}, false, ['encrypt', 'decrypt'])
})
}
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