1 files changed, 156 insertions, 0 deletions
diff --git a/third_party/js/PKI.js/src/RecipientEncryptedKey.ts b/third_party/js/PKI.js/src/RecipientEncryptedKey.ts
new file mode 100644
index 0000000000..7748e80262
--- /dev/null
+++ b/third_party/js/PKI.js/src/RecipientEncryptedKey.ts
@@ -0,0 +1,156 @@
+import * as asn1js from "asn1js";
+import * as pvutils from "pvutils";
+import { EMPTY_STRING } from "./constants";
+import { AsnError } from "./errors";
+import { KeyAgreeRecipientIdentifier, KeyAgreeRecipientIdentifierJson, KeyAgreeRecipientIdentifierSchema } from "./KeyAgreeRecipientIdentifier";
+import { PkiObject, PkiObjectParameters } from "./PkiObject";
+import * as Schema from "./Schema";
+
+const RID = "rid";
+const ENCRYPTED_KEY = "encryptedKey";
+const CLEAR_PROPS = [
+  RID,
+  ENCRYPTED_KEY,
+];
+
+export interface IRecipientEncryptedKey {
+  rid: KeyAgreeRecipientIdentifier;
+  encryptedKey: asn1js.OctetString;
+}
+
+export interface RecipientEncryptedKeyJson {
+  rid: KeyAgreeRecipientIdentifierJson;
+  encryptedKey: asn1js.OctetStringJson;
+}
+
+export type RecipientEncryptedKeyParameters = PkiObjectParameters & Partial<IRecipientEncryptedKey>;
+
+/**
+ * Represents the RecipientEncryptedKey structure described in [RFC5652](https://datatracker.ietf.org/doc/html/rfc5652)
+ */
+export class RecipientEncryptedKey extends PkiObject implements IRecipientEncryptedKey {
+
+  public static override CLASS_NAME = "RecipientEncryptedKey";
+
+  public rid!: KeyAgreeRecipientIdentifier;
+  public encryptedKey!: asn1js.OctetString;
+
+  /**
+   * Initializes a new instance of the {@link RecipientEncryptedKey} class
+   * @param parameters Initialization parameters
+   */
+  constructor(parameters: RecipientEncryptedKeyParameters = {}) {
+    super();
+
+    this.rid = pvutils.getParametersValue(parameters, RID, RecipientEncryptedKey.defaultValues(RID));
+    this.encryptedKey = pvutils.getParametersValue(parameters, ENCRYPTED_KEY, RecipientEncryptedKey.defaultValues(ENCRYPTED_KEY));
+
+    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 RID): KeyAgreeRecipientIdentifier;
+  public static override defaultValues(memberName: typeof ENCRYPTED_KEY): asn1js.OctetString;
+  public static override defaultValues(memberName: string): any {
+    switch (memberName) {
+      case RID:
+        return new KeyAgreeRecipientIdentifier();
+      case ENCRYPTED_KEY:
+        return new asn1js.OctetString();
+      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 RID:
+        return ((memberValue.variant === (-1)) && (("value" in memberValue) === false));
+      case ENCRYPTED_KEY:
+        return (memberValue.isEqual(RecipientEncryptedKey.defaultValues(ENCRYPTED_KEY)));
+      default:
+        return super.defaultValues(memberName);
+    }
+  }
+
+  /**
+   * @inheritdoc
+   * @asn ASN.1 schema
+   * ```asn
+   * RecipientEncryptedKey ::= SEQUENCE {
+   *    rid KeyAgreeRecipientIdentifier,
+   *    encryptedKey EncryptedKey }
+   *
+   * EncryptedKey ::= OCTET STRING
+   *```
+   */
+  public static override schema(parameters: Schema.SchemaParameters<{
+    rid?: KeyAgreeRecipientIdentifierSchema;
+    encryptedKey?: string;
+  }> = {}): Schema.SchemaType {
+    const names = pvutils.getParametersValue<NonNullable<typeof parameters.names>>(parameters, "names", {});
+
+    return (new asn1js.Sequence({
+      name: (names.blockName || EMPTY_STRING),
+      value: [
+        KeyAgreeRecipientIdentifier.schema(names.rid || {}),
+        new asn1js.OctetString({ name: (names.encryptedKey || EMPTY_STRING) })
+      ]
+    }));
+  }
+
+  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,
+      RecipientEncryptedKey.schema({
+        names: {
+          rid: {
+            names: {
+              blockName: RID
+            }
+          },
+          encryptedKey: ENCRYPTED_KEY
+        }
+      })
+    );
+    AsnError.assertSchema(asn1, this.className);
+
+    // Get internal properties from parsed schema
+    this.rid = new KeyAgreeRecipientIdentifier({ schema: asn1.result.rid });
+    this.encryptedKey = asn1.result.encryptedKey;
+  }
+
+  public toSchema(): asn1js.Sequence {
+    // Construct and return new ASN.1 schema for this object
+    return (new asn1js.Sequence({
+      value: [
+        this.rid.toSchema(),
+        this.encryptedKey
+      ]
+    }));
+    //#endregion
+  }
+
+  public toJSON(): RecipientEncryptedKeyJson {
+    return {
+      rid: this.rid.toJSON(),
+      encryptedKey: this.encryptedKey.toJSON(),
+    };
+  }
+
+}