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add streaming

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This commit is contained in:
Emily Hou 2018-06-21 13:57:53 -07:00
parent 1bd7e4d486
commit e4a0028f5d
4 changed files with 50 additions and 41 deletions
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8
app/ece.js
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@ -6,7 +6,7 @@ const TAG_LENGTH = 16;
const KEY_LENGTH = 16;
const MODE_ENCRYPT = 'encrypt';
const MODE_DECRYPT = 'decrypt';
const RS = 1024 * 1024;
const RS = 1048576;
const encoder = new TextEncoder();
@ -16,7 +16,7 @@ function generateSalt(len) {
return randSalt.buffer;
}
export class ECETransformer {
class ECETransformer {
constructor(mode, ikm, rs, salt) {
this.mode = mode;
this.prevChunk;
@ -139,7 +139,6 @@ export class ECETransformer {
return Buffer.concat([Buffer.from(this.salt), nums]);
}
//salt is arraybuffer, rs is int, length is int
readHeader(buffer) {
if (buffer.length < 21) {
throw new Error('chunk too small for reading header');
@ -259,7 +258,7 @@ class BlobSlicer {
}
}
export class BlobSliceStream extends ReadableStream {
class BlobSliceStream extends ReadableStream {
constructor(blob, size, mode) {
super(new BlobSlicer(blob, size, mode));
}
@ -272,7 +271,6 @@ mode: string, either 'encrypt' or 'decrypt'
rs: int containing record size, optional
salt: ArrayBuffer containing salt of KEY_LENGTH length, optional
*/
export default class ECE {
constructor(input, key, mode, rs, salt) {
if (rs === undefined) {