Move asymmetric crypto functions out of crypto service (#10903)

libs/auth/src/common/login-strategies/webauthn-login.strategy.spec.ts

@@ -226,7 +226,7 @@ describe("WebAuthnLoginStrategy", () => {
     const mockUserKey = new SymmetricCryptoKey(mockUserKeyArray) as UserKey;
 
     encryptService.decryptToBytes.mockResolvedValue(mockPrfPrivateKey);
-    cryptoService.rsaDecrypt.mockResolvedValue(mockUserKeyArray);
+    encryptService.rsaDecrypt.mockResolvedValue(mockUserKeyArray);
 
     // Act
     await webAuthnLoginStrategy.logIn(webAuthnCredentials);
@@ -244,9 +244,9 @@ describe("WebAuthnLoginStrategy", () => {
       idTokenResponse.userDecryptionOptions.webAuthnPrfOption.encryptedPrivateKey,
       webAuthnCredentials.prfKey,
     );
-    expect(cryptoService.rsaDecrypt).toHaveBeenCalledTimes(1);
-    expect(cryptoService.rsaDecrypt).toHaveBeenCalledWith(
-      idTokenResponse.userDecryptionOptions.webAuthnPrfOption.encryptedUserKey.encryptedString,
+    expect(encryptService.rsaDecrypt).toHaveBeenCalledTimes(1);
+    expect(encryptService.rsaDecrypt).toHaveBeenCalledWith(
+      idTokenResponse.userDecryptionOptions.webAuthnPrfOption.encryptedUserKey,
       mockPrfPrivateKey,
     );
     expect(cryptoService.setUserKey).toHaveBeenCalledWith(mockUserKey, userId);
@@ -273,7 +273,7 @@ describe("WebAuthnLoginStrategy", () => {
 
     // Assert
     expect(encryptService.decryptToBytes).not.toHaveBeenCalled();
-    expect(cryptoService.rsaDecrypt).not.toHaveBeenCalled();
+    expect(encryptService.rsaDecrypt).not.toHaveBeenCalled();
     expect(cryptoService.setUserKey).not.toHaveBeenCalled();
   });
 
@@ -325,7 +325,7 @@ describe("WebAuthnLoginStrategy", () => {
 
     apiService.postIdentityToken.mockResolvedValue(idTokenResponse);
 
-    cryptoService.rsaDecrypt.mockResolvedValue(null);
+    encryptService.rsaDecrypt.mockResolvedValue(null);
 
     // Act
     await webAuthnLoginStrategy.logIn(webAuthnCredentials);

libs/auth/src/common/login-strategies/webauthn-login.strategy.ts

@@ -4,6 +4,7 @@ import { Jsonify } from "type-fest";
 import { AuthResult } from "@bitwarden/common/auth/models/domain/auth-result";
 import { WebAuthnLoginTokenRequest } from "@bitwarden/common/auth/models/request/identity-token/webauthn-login-token.request";
 import { IdentityTokenResponse } from "@bitwarden/common/auth/models/response/identity-token.response";
+import { EncString } from "@bitwarden/common/platform/models/domain/enc-string";
 import { SymmetricCryptoKey } from "@bitwarden/common/platform/models/domain/symmetric-crypto-key";
 import { UserId } from "@bitwarden/common/types/guid";
 import { UserKey } from "@bitwarden/common/types/key";
@@ -86,8 +87,8 @@ export class WebAuthnLoginStrategy extends LoginStrategy {
       );
 
       // decrypt user key with private key
-      const userKey = await this.cryptoService.rsaDecrypt(
-        webAuthnPrfOption.encryptedUserKey.encryptedString,
+      const userKey = await this.encryptService.rsaDecrypt(
+        new EncString(webAuthnPrfOption.encryptedUserKey.encryptedString),
         privateKey,
       );
 

libs/auth/src/common/services/auth-request/auth-request.service.spec.ts

@@ -6,6 +6,7 @@ import { FakeMasterPasswordService } from "@bitwarden/common/auth/services/maste
 import { AuthRequestPushNotification } from "@bitwarden/common/models/response/notification.response";
 import { AppIdService } from "@bitwarden/common/platform/abstractions/app-id.service";
 import { CryptoService } from "@bitwarden/common/platform/abstractions/crypto.service";
+import { EncryptService } from "@bitwarden/common/platform/abstractions/encrypt.service";
 import { Utils } from "@bitwarden/common/platform/misc/utils";
 import { EncString } from "@bitwarden/common/platform/models/domain/enc-string";
 import { SymmetricCryptoKey } from "@bitwarden/common/platform/models/domain/symmetric-crypto-key";
@@ -24,6 +25,7 @@ describe("AuthRequestService", () => {
   let masterPasswordService: FakeMasterPasswordService;
   const appIdService = mock<AppIdService>();
   const cryptoService = mock<CryptoService>();
+  const encryptService = mock<EncryptService>();
   const apiService = mock<ApiService>();
 
   let mockPrivateKey: Uint8Array;
@@ -40,6 +42,7 @@ describe("AuthRequestService", () => {
       accountService,
       masterPasswordService,
       cryptoService,
+      encryptService,
       apiService,
       stateProvider,
     );
@@ -82,7 +85,7 @@ describe("AuthRequestService", () => {
 
   describe("approveOrDenyAuthRequest", () => {
     beforeEach(() => {
-      cryptoService.rsaEncrypt.mockResolvedValue({
+      encryptService.rsaEncrypt.mockResolvedValue({
         encryptedString: "ENCRYPTED_STRING",
       } as EncString);
       appIdService.getAppId.mockResolvedValue("APP_ID");
@@ -108,7 +111,7 @@ describe("AuthRequestService", () => {
         new AuthRequestResponse({ id: "123", publicKey: "KEY" }),
       );
 
-      expect(cryptoService.rsaEncrypt).toHaveBeenCalledWith(new Uint8Array(64), expect.anything());
+      expect(encryptService.rsaEncrypt).toHaveBeenCalledWith(new Uint8Array(64), expect.anything());
     });
 
     it("should use the user key if the master key and hash do not exist", async () => {
@@ -119,7 +122,7 @@ describe("AuthRequestService", () => {
         new AuthRequestResponse({ id: "123", publicKey: "KEY" }),
       );
 
-      expect(cryptoService.rsaEncrypt).toHaveBeenCalledWith(new Uint8Array(64), expect.anything());
+      expect(encryptService.rsaEncrypt).toHaveBeenCalledWith(new Uint8Array(64), expect.anything());
     });
   });
   describe("setUserKeyAfterDecryptingSharedUserKey", () => {
@@ -211,7 +214,7 @@ describe("AuthRequestService", () => {
       const mockDecryptedUserKeyBytes = new Uint8Array(64);
       const mockDecryptedUserKey = new SymmetricCryptoKey(mockDecryptedUserKeyBytes) as UserKey;
 
-      cryptoService.rsaDecrypt.mockResolvedValueOnce(mockDecryptedUserKeyBytes);
+      encryptService.rsaDecrypt.mockResolvedValueOnce(mockDecryptedUserKeyBytes);
 
       // Act
       const result = await sut.decryptPubKeyEncryptedUserKey(
@@ -220,7 +223,10 @@ describe("AuthRequestService", () => {
       );
 
       // Assert
-      expect(cryptoService.rsaDecrypt).toBeCalledWith(mockPubKeyEncryptedUserKey, mockPrivateKey);
+      expect(encryptService.rsaDecrypt).toBeCalledWith(
+        new EncString(mockPubKeyEncryptedUserKey),
+        mockPrivateKey,
+      );
       expect(result).toEqual(mockDecryptedUserKey);
     });
   });
@@ -238,7 +244,7 @@ describe("AuthRequestService", () => {
       const mockDecryptedMasterKeyHashBytes = new Uint8Array(64);
       const mockDecryptedMasterKeyHash = Utils.fromBufferToUtf8(mockDecryptedMasterKeyHashBytes);
 
-      cryptoService.rsaDecrypt
+      encryptService.rsaDecrypt
         .mockResolvedValueOnce(mockDecryptedMasterKeyBytes)
         .mockResolvedValueOnce(mockDecryptedMasterKeyHashBytes);
 
@@ -250,14 +256,14 @@ describe("AuthRequestService", () => {
       );
 
       // Assert
-      expect(cryptoService.rsaDecrypt).toHaveBeenNthCalledWith(
+      expect(encryptService.rsaDecrypt).toHaveBeenNthCalledWith(
         1,
-        mockPubKeyEncryptedMasterKey,
+        new EncString(mockPubKeyEncryptedMasterKey),
         mockPrivateKey,
       );
-      expect(cryptoService.rsaDecrypt).toHaveBeenNthCalledWith(
+      expect(encryptService.rsaDecrypt).toHaveBeenNthCalledWith(
         2,
-        mockPubKeyEncryptedMasterKeyHash,
+        new EncString(mockPubKeyEncryptedMasterKeyHash),
         mockPrivateKey,
       );
       expect(result.masterKey).toEqual(mockDecryptedMasterKey);

libs/auth/src/common/services/auth-request/auth-request.service.ts

@@ -10,7 +10,9 @@ import { AuthRequestResponse } from "@bitwarden/common/auth/models/response/auth
 import { AuthRequestPushNotification } from "@bitwarden/common/models/response/notification.response";
 import { AppIdService } from "@bitwarden/common/platform/abstractions/app-id.service";
 import { CryptoService } from "@bitwarden/common/platform/abstractions/crypto.service";
+import { EncryptService } from "@bitwarden/common/platform/abstractions/encrypt.service";
 import { Utils } from "@bitwarden/common/platform/misc/utils";
+import { EncString } from "@bitwarden/common/platform/models/domain/enc-string";
 import { SymmetricCryptoKey } from "@bitwarden/common/platform/models/domain/symmetric-crypto-key";
 import {
   AUTH_REQUEST_DISK_LOCAL,
@@ -44,6 +46,7 @@ export class AuthRequestService implements AuthRequestServiceAbstraction {
     private accountService: AccountService,
     private masterPasswordService: InternalMasterPasswordServiceAbstraction,
     private cryptoService: CryptoService,
+    private encryptService: EncryptService,
     private apiService: ApiService,
     private stateProvider: StateProvider,
   ) {
@@ -102,7 +105,7 @@ export class AuthRequestService implements AuthRequestServiceAbstraction {
     if (masterKey && masterKeyHash) {
       // Only encrypt the master password hash if masterKey exists as
       // we won't have a masterKeyHash without a masterKey
-      encryptedMasterKeyHash = await this.cryptoService.rsaEncrypt(
+      encryptedMasterKeyHash = await this.encryptService.rsaEncrypt(
         Utils.fromUtf8ToArray(masterKeyHash),
         pubKey,
       );
@@ -112,7 +115,7 @@ export class AuthRequestService implements AuthRequestServiceAbstraction {
       keyToEncrypt = userKey.key;
     }
 
-    const encryptedKey = await this.cryptoService.rsaEncrypt(keyToEncrypt, pubKey);
+    const encryptedKey = await this.encryptService.rsaEncrypt(keyToEncrypt, pubKey);
 
     const response = new PasswordlessAuthRequest(
       encryptedKey.encryptedString,
@@ -161,8 +164,8 @@ export class AuthRequestService implements AuthRequestServiceAbstraction {
     pubKeyEncryptedUserKey: string,
     privateKey: Uint8Array,
   ): Promise<UserKey> {
-    const decryptedUserKeyBytes = await this.cryptoService.rsaDecrypt(
-      pubKeyEncryptedUserKey,
+    const decryptedUserKeyBytes = await this.encryptService.rsaDecrypt(
+      new EncString(pubKeyEncryptedUserKey),
       privateKey,
     );
 
@@ -174,13 +177,13 @@ export class AuthRequestService implements AuthRequestServiceAbstraction {
     pubKeyEncryptedMasterKeyHash: string,
     privateKey: Uint8Array,
   ): Promise<{ masterKey: MasterKey; masterKeyHash: string }> {
-    const decryptedMasterKeyArrayBuffer = await this.cryptoService.rsaDecrypt(
-      pubKeyEncryptedMasterKey,
+    const decryptedMasterKeyArrayBuffer = await this.encryptService.rsaDecrypt(
+      new EncString(pubKeyEncryptedMasterKey),
       privateKey,
     );
 
-    const decryptedMasterKeyHashArrayBuffer = await this.cryptoService.rsaDecrypt(
-      pubKeyEncryptedMasterKeyHash,
+    const decryptedMasterKeyHashArrayBuffer = await this.encryptService.rsaDecrypt(
+      new EncString(pubKeyEncryptedMasterKeyHash),
       privateKey,
     );