Encryption and Decryption now works including up- and download
parent
dfcacf7bbf
commit
32913d8695
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@ -3,7 +3,8 @@
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import { escape } from 'svelte/internal';
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import { decryptFileContent } from './cryptlib';
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let filename: string = "";
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let originalFilename: string;
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let originalFilename: string = "Decrypted.txt";
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let outputFile: Blob;
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function removeCrpytFileEnding() {
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if (filename.endsWith(".crypt")) {
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@ -39,24 +40,34 @@
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event.preventDefault();
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filename = file.name;
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console.log("Uploaded:", filename)
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removeCrpytFileEnding()
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if (!file) {
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return;
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}
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readFileContent(file).then((fileContent) => {
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let outputFile: Blob;
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decryptFileContent(fileContent).then((outputArray) => {
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console.log(outputArray)
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console.log("Output Array:", outputArray);
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outputFile = new Blob([outputArray], { type: 'application/octet-stream'});
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});
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console.log("Blob", outputFile)
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if (outputFile !instanceof Blob) {
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console.log("Is not a blob")
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}
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if (outputFile instanceof Blob) {
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console.log("Is a blob")
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}
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console.log("out side DecryptFileContent", outputFile)
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let url = URL.createObjectURL(outputFile);
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console.log(url)
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let a = document.createElement("a");
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a.href = url;
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a.download = originalFilename;
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document.body.appendChild(a);
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a.click();
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document.body.removeChild(a);
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});
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}); //end of decryptFileContent
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}); //end of readFileContent
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}
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</script>
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@ -61,7 +61,7 @@ the ciphertext.
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export async function encryptFile(file: File) {
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let keyMaterial = await getKeyMaterial();
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let key = await getKey(keyMaterial);
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iv = window.crypto.getRandomValues(new Uint8Array(12));
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iv = getStringEncoding(password).slice(0,12);
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const fileReader = new FileReader();
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let byteArray = await file.arrayBuffer();
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@ -90,18 +90,17 @@ export async function decryptFileContent(base64Encoded: string) {
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let keyMaterial = await getKeyMaterial();
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console.log(keyMaterial)
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let key = await getKey(keyMaterial);
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iv = getStringEncoding(password).slice(0,12);
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//Remove anything form the Base64 String that isn't base64
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const cleanString = base64Encoded.replace(/[^A-Za-z0-9+/=]/g, '');
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// create Uint8 Array from base64 string
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let encryptedString = atob(cleanString)
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console.log(encryptedString)
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const encryptedContent = new Uint8Array(encryptedString.length)
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for (let i = 0; i < encryptedString.length; i++) {
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encryptedContent[i] = encryptedString.charCodeAt(i); // Populate the array with the decoded data
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}
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console.log(encryptedContent)
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const encryptedContentBuffer: ArrayBuffer = encryptedContent.buffer;
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try {
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@ -113,7 +112,7 @@ export async function decryptFileContent(base64Encoded: string) {
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key,
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encryptedContentBuffer
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);
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return decrypted;
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return new Uint8Array(decrypted);
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} catch (e) {
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console.log(e)
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errorMessage.set(`Can not decrypt file: ${e}`)
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