feat: add a switch for decryption

Author: rodrigopavezi

packages/epk-cipher/src/ethereum-private-key-cipher-provider.ts

@@ -20,6 +20,8 @@ export default class EthereumPrivateKeyCipherProvider
   /** Dictionary containing all the private keys indexed by address */
   private decryptionParametersDictionary: IDecryptionParametersDictionary;
 
+  private isDecryptionOn = false;
+
   constructor(decryptionParameters?: EncryptionTypes.IDecryptionParameters) {
     this.decryptionParametersDictionary = new Map<string, EncryptionTypes.IDecryptionParameters>();
     if (decryptionParameters) {
@@ -42,9 +44,17 @@ export default class EthereumPrivateKeyCipherProvider
    * @returns true if decryption is available
    */
   public isDecryptionAvailable(): boolean {
-    return this.decryptionParametersDictionary.size > 0;
+    return this.decryptionParametersDictionary.size > 0 && this.isDecryptionOn;
   }
 
+  /**
+   * Switches on decryption
+   *
+   * @param option
+   */
+  public switchOnOffDecryption(option: boolean): void {
+    this.isDecryptionOn = option;
+  }
   /**
    * Encrypts data
    *

packages/lit-protocol-cipher/src/lit-protocol-cipher-provider.ts

@@ -61,6 +61,11 @@ export default class LitProvider implements CipherProviderTypes.ICipherProvider
    */
   private debug = false;
 
+  /**
+   * @property {boolean} isDecryptionOn - A boolean indicating if decryption is enabled.
+   */
+  private isDecryptionOn = false;
+
   /**
    * @constructor
    * @param {LitNodeClient|LitNodeClientNodeJs} litClient - An instance of a Lit Protocol client (either client-side or Node.js).
@@ -274,6 +279,15 @@ export default class LitProvider implements CipherProviderTypes.ICipherProvider
     return accessControlConditions;
   }
 
+  /**
+   * Switches on decryption
+   *
+   * @param option
+   */
+  public switchOnOffDecryption(option: boolean): void {
+    this.isDecryptionOn = option;
+  }
+
   /**
    * @function isEncryptionAvailable
    * @description Checks if encryption is available.
@@ -324,7 +338,7 @@ export default class LitProvider implements CipherProviderTypes.ICipherProvider
    * @returns {boolean} A boolean indicating if decryption is available.
    */
   public isDecryptionAvailable(): boolean {
-    return this.client !== null && this.sessionSigs !== null;
+    return this.client !== null && this.sessionSigs !== null && this.isDecryptionOn;
   }
 
   /**

packages/transaction-manager/test/unit/utils/test-data.ts

@@ -106,6 +106,9 @@ export const fakeDecryptionProvider: DecryptionProviderTypes.IDecryptionProvider
 };
 
 export class FakeEpkCipherProvider implements CipherProviderTypes.ICipherProvider {
+  switchOnOffDecryption(option: boolean): void {
+    throw new Error('Method not implemented.');
+  }
   isEncryptionAvailable(): boolean {
     throw new Error('Method not implemented.');
   }
@@ -174,6 +177,9 @@ export class FakeLitProtocolProvider implements CipherProviderTypes.ICipherProvi
   constructor() {
     this.storedRawData = '';
   }
+  switchOnOffDecryption(option: boolean): void {
+    throw new Error('Method not implemented.');
+  }
   isEncryptionAvailable(): boolean {
     throw new Error('Method not implemented.');
   }

packages/types/src/cipher-provider-types.ts

@@ -29,4 +29,10 @@ export interface ICipherProvider {
    * @returns A boolean indicating if decryption is available.
    */
   isDecryptionAvailable(): boolean;
+
+  /**
+   * Switches on/off decryption.
+   * @param option - A boolean indicating if decryption should be switched on/off.
+   */
+  switchOnOffDecryption(option: boolean): void;
 }