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c90eb42ead
* move decryptFromBytes, decryptToBytes, and encryptToBytes from CryptoService to EncryptService * leave redirects in CryptoService * combine encryptService decryptFromBytes and decryptToBytes methods * move parsing logic into EncArrayBuffer * add tests
77 lines
3.0 KiB
TypeScript
77 lines
3.0 KiB
TypeScript
import { EncryptionType } from "@bitwarden/common/enums/encryptionType";
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import { EncArrayBuffer } from "@bitwarden/common/models/domain/encArrayBuffer";
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import { makeStaticByteArray } from "../utils";
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describe("encArrayBuffer", () => {
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describe("parses the buffer", () => {
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test.each([
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[EncryptionType.AesCbc128_HmacSha256_B64, "AesCbc128_HmacSha256_B64"],
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[EncryptionType.AesCbc256_HmacSha256_B64, "AesCbc256_HmacSha256_B64"],
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])("with %c%s", (encType: EncryptionType) => {
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const iv = makeStaticByteArray(16, 10);
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const mac = makeStaticByteArray(32, 20);
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// We use the minimum data length of 1 to test the boundary of valid lengths
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const data = makeStaticByteArray(1, 100);
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const array = new Uint8Array(1 + iv.byteLength + mac.byteLength + data.byteLength);
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array.set([encType]);
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array.set(iv, 1);
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array.set(mac, 1 + iv.byteLength);
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array.set(data, 1 + iv.byteLength + mac.byteLength);
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const actual = new EncArrayBuffer(array.buffer);
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expect(actual.encryptionType).toEqual(encType);
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expect(actual.ivBytes).toEqualBuffer(iv);
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expect(actual.macBytes).toEqualBuffer(mac);
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expect(actual.dataBytes).toEqualBuffer(data);
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});
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it("with AesCbc256_B64", () => {
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const encType = EncryptionType.AesCbc256_B64;
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const iv = makeStaticByteArray(16, 10);
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// We use the minimum data length of 1 to test the boundary of valid lengths
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const data = makeStaticByteArray(1, 100);
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const array = new Uint8Array(1 + iv.byteLength + data.byteLength);
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array.set([encType]);
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array.set(iv, 1);
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array.set(data, 1 + iv.byteLength);
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const actual = new EncArrayBuffer(array.buffer);
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expect(actual.encryptionType).toEqual(encType);
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expect(actual.ivBytes).toEqualBuffer(iv);
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expect(actual.dataBytes).toEqualBuffer(data);
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expect(actual.macBytes).toBeNull();
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});
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});
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describe("throws if the buffer has an invalid length", () => {
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test.each([
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[EncryptionType.AesCbc128_HmacSha256_B64, 50, "AesCbc128_HmacSha256_B64"],
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[EncryptionType.AesCbc256_HmacSha256_B64, 50, "AesCbc256_HmacSha256_B64"],
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[EncryptionType.AesCbc256_B64, 18, "AesCbc256_B64"],
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])("with %c%c%s", (encType: EncryptionType, minLength: number) => {
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// Generate invalid byte array
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// Minus 1 to leave room for the encType, minus 1 to make it invalid
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const invalidBytes = makeStaticByteArray(minLength - 2);
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const invalidArray = new Uint8Array(1 + invalidBytes.buffer.byteLength);
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invalidArray.set([encType]);
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invalidArray.set(invalidBytes, 1);
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expect(() => new EncArrayBuffer(invalidArray.buffer)).toThrow(
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"Error parsing encrypted ArrayBuffer"
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);
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});
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});
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it("doesn't parse the buffer if the encryptionType is not supported", () => {
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// Starting at 9 implicitly gives us an invalid encType
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const bytes = makeStaticByteArray(50, 9);
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expect(() => new EncArrayBuffer(bytes)).toThrow("Error parsing encrypted ArrayBuffer");
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});
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});
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