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🐛 Fix length calculation during decryption

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This commit is contained in:
C-3PO 2018-06-24 02:15:46 +02:00
parent 589f7fe786
commit 52157f544c
Signed by: c3po
GPG key ID: 62993C4BB4D86F24
1 changed files with 1 additions and 2 deletions
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3
src/ssn/decryption/decryptFile.ts
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@ -1,7 +1,7 @@
import updateKeys from './updateKeys'; import updateKeys from './updateKeys';
export default function decryptFile(dv: DataView, length: number, [key0, key1, key2]: [number, number, number]) { export default function decryptFile(dv: DataView, length: number, [key0, key1, key2]: [number, number, number]) {
const decryptedBuffer = new ArrayBuffer(dv.byteLength - 12); const decryptedBuffer = new ArrayBuffer(length - 12);
const dvOut = new DataView(decryptedBuffer); const dvOut = new DataView(decryptedBuffer);
for (let i = 0; i < length; i += 1) { for (let i = 0; i < length; i += 1) {
@ -19,6 +19,5 @@ export default function decryptFile(dv: DataView, length: number, [key0, key1, k
[key0, key1, key2] = updateKeys([key0, key1, key2], curChar); [key0, key1, key2] = updateKeys([key0, key1, key2], curChar);
} }
//If it was decrypted, we skip the first 12 bytes (random encryption header)
return dvOut; return dvOut;
} }