1 files changed, 134 insertions, 0 deletions
diff --git a/third_party/js/PKI.js/src/RecipientEncryptedKeys.ts b/third_party/js/PKI.js/src/RecipientEncryptedKeys.ts
new file mode 100644
index 0000000000..68a812d9aa
--- /dev/null
+++ b/third_party/js/PKI.js/src/RecipientEncryptedKeys.ts
@@ -0,0 +1,134 @@
+import * as asn1js from "asn1js";
+import * as pvutils from "pvutils";
+import { EMPTY_STRING } from "./constants";
+import { AsnError } from "./errors";
+import { PkiObject, PkiObjectParameters } from "./PkiObject";
+import { RecipientEncryptedKey, RecipientEncryptedKeyJson } from "./RecipientEncryptedKey";
+import * as Schema from "./Schema";
+
+const ENCRYPTED_KEYS = "encryptedKeys";
+const RECIPIENT_ENCRYPTED_KEYS = "RecipientEncryptedKeys";
+const CLEAR_PROPS = [
+  RECIPIENT_ENCRYPTED_KEYS,
+];
+
+export interface IRecipientEncryptedKeys {
+  encryptedKeys: RecipientEncryptedKey[];
+}
+
+export interface RecipientEncryptedKeysJson {
+  encryptedKeys: RecipientEncryptedKeyJson[];
+}
+
+export type RecipientEncryptedKeysParameters = PkiObjectParameters & Partial<IRecipientEncryptedKeys>;
+
+export type RecipientEncryptedKeysSchema = Schema.SchemaParameters<{
+  RecipientEncryptedKeys?: string;
+}>;
+
+/**
+ * Represents the RecipientEncryptedKeys structure described in [RFC5652](https://datatracker.ietf.org/doc/html/rfc5652)
+ */
+export class RecipientEncryptedKeys extends PkiObject implements IRecipientEncryptedKeys {
+
+  public static override CLASS_NAME = "RecipientEncryptedKeys";
+
+  public encryptedKeys!: RecipientEncryptedKey[];
+
+  /**
+   * Initializes a new instance of the {@link RecipientEncryptedKeys} class
+   * @param parameters Initialization parameters
+   */
+  constructor(parameters: RecipientEncryptedKeysParameters = {}) {
+    super();
+
+    this.encryptedKeys = pvutils.getParametersValue(parameters, ENCRYPTED_KEYS, RecipientEncryptedKeys.defaultValues(ENCRYPTED_KEYS));
+
+    if (parameters.schema) {
+      this.fromSchema(parameters.schema);
+    }
+  }
+
+  /**
+   * Returns default values for all class members
+   * @param memberName String name for a class member
+   * @returns Default value
+   */
+  public static override defaultValues(memberName: typeof ENCRYPTED_KEYS): RecipientEncryptedKey[];
+  public static override defaultValues(memberName: string): any {
+    switch (memberName) {
+      case ENCRYPTED_KEYS:
+        return [];
+      default:
+        return super.defaultValues(memberName);
+    }
+  }
+
+  /**
+   * Compare values with default values for all class members
+   * @param memberName String name for a class member
+   * @param memberValue Value to compare with default value
+   */
+  public static compareWithDefault(memberName: string, memberValue: any): boolean {
+    switch (memberName) {
+      case ENCRYPTED_KEYS:
+        return (memberValue.length === 0);
+      default:
+        return super.defaultValues(memberName);
+    }
+  }
+
+  /**
+   * @inheritdoc
+   * @asn ASN.1 schema
+   * ```asn
+   * RecipientEncryptedKeys ::= SEQUENCE OF RecipientEncryptedKey
+   *```
+   */
+  public static override schema(parameters: RecipientEncryptedKeysSchema = {}): Schema.SchemaType {
+    const names = pvutils.getParametersValue<NonNullable<typeof parameters.names>>(parameters, "names", {});
+
+    return (new asn1js.Sequence({
+      name: (names.blockName || EMPTY_STRING),
+      value: [
+        new asn1js.Repeated({
+          name: (names.RecipientEncryptedKeys || EMPTY_STRING),
+          value: RecipientEncryptedKey.schema()
+        })
+      ]
+    }));
+  }
+
+  public fromSchema(schema: Schema.SchemaType): void {
+    // Clear input data first
+    pvutils.clearProps(schema, CLEAR_PROPS);
+
+    // Check the schema is valid
+    const asn1 = asn1js.compareSchema(schema,
+      schema,
+      RecipientEncryptedKeys.schema({
+        names: {
+          RecipientEncryptedKeys: RECIPIENT_ENCRYPTED_KEYS
+        }
+      })
+    );
+    AsnError.assertSchema(asn1, this.className);
+
+    // Get internal properties from parsed schema
+    this.encryptedKeys = Array.from(asn1.result.RecipientEncryptedKeys, element => new RecipientEncryptedKey({ schema: element }));
+  }
+
+  public toSchema(): asn1js.Sequence {
+    // Construct and return new ASN.1 schema for this object
+    return (new asn1js.Sequence({
+      value: Array.from(this.encryptedKeys, o => o.toSchema())
+    }));
+  }
+
+  public toJSON(): RecipientEncryptedKeysJson {
+    return {
+      encryptedKeys: Array.from(this.encryptedKeys, o => o.toJSON())
+    };
+  }
+
+}