1 files changed, 141 insertions, 0 deletions
diff --git a/third_party/js/PKI.js/src/PBES2Params.ts b/third_party/js/PKI.js/src/PBES2Params.ts
new file mode 100644
index 0000000000..526964446b
--- /dev/null
+++ b/third_party/js/PKI.js/src/PBES2Params.ts
@@ -0,0 +1,141 @@
+import * as asn1js from "asn1js";
+import * as pvutils from "pvutils";
+import { AlgorithmIdentifier, AlgorithmIdentifierJson, AlgorithmIdentifierSchema } from "./AlgorithmIdentifier";
+import { EMPTY_STRING } from "./constants";
+import { AsnError } from "./errors";
+import { PkiObject, PkiObjectParameters } from "./PkiObject";
+import * as Schema from "./Schema";
+
+const KEY_DERIVATION_FUNC = "keyDerivationFunc";
+const ENCRYPTION_SCHEME = "encryptionScheme";
+const CLEAR_PROPS = [
+  KEY_DERIVATION_FUNC,
+  ENCRYPTION_SCHEME
+];
+
+export interface IPBES2Params {
+  keyDerivationFunc: AlgorithmIdentifier;
+  encryptionScheme: AlgorithmIdentifier;
+}
+
+export interface PBES2ParamsJson {
+  keyDerivationFunc: AlgorithmIdentifierJson;
+  encryptionScheme: AlgorithmIdentifierJson;
+}
+
+export type PBES2ParamsParameters = PkiObjectParameters & Partial<IPBES2Params>;
+
+/**
+ * Represents the PBES2Params structure described in [RFC2898](https://www.ietf.org/rfc/rfc2898.txt)
+ */
+export class PBES2Params extends PkiObject implements IPBES2Params {
+
+  public static override CLASS_NAME = "PBES2Params";
+
+  public keyDerivationFunc!: AlgorithmIdentifier;
+  public encryptionScheme!: AlgorithmIdentifier;
+
+  /**
+   * Initializes a new instance of the {@link PBES2Params} class
+   * @param parameters Initialization parameters
+   */
+  constructor(parameters: PBES2ParamsParameters = {}) {
+    super();
+
+    this.keyDerivationFunc = pvutils.getParametersValue(parameters, KEY_DERIVATION_FUNC, PBES2Params.defaultValues(KEY_DERIVATION_FUNC));
+    this.encryptionScheme = pvutils.getParametersValue(parameters, ENCRYPTION_SCHEME, PBES2Params.defaultValues(ENCRYPTION_SCHEME));
+
+    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 KEY_DERIVATION_FUNC): AlgorithmIdentifier;
+  public static override defaultValues(memberName: typeof ENCRYPTION_SCHEME): AlgorithmIdentifier;
+  public static override defaultValues(memberName: string): any {
+    switch (memberName) {
+      case KEY_DERIVATION_FUNC:
+        return new AlgorithmIdentifier();
+      case ENCRYPTION_SCHEME:
+        return new AlgorithmIdentifier();
+      default:
+        return super.defaultValues(memberName);
+    }
+  }
+
+  /**
+   * @inheritdoc
+   * @asn ASN.1 schema
+   * ```asn
+   * PBES2-params ::= SEQUENCE {
+   *    keyDerivationFunc AlgorithmIdentifier {{PBES2-KDFs}},
+   *    encryptionScheme AlgorithmIdentifier {{PBES2-Encs}} }
+   *```
+   */
+  public static override schema(parameters: Schema.SchemaParameters<{
+    keyDerivationFunc?: AlgorithmIdentifierSchema;
+    encryptionScheme?: AlgorithmIdentifierSchema;
+  }> = {}): Schema.SchemaType {
+    const names = pvutils.getParametersValue<NonNullable<typeof parameters.names>>(parameters, "names", {});
+
+    return (new asn1js.Sequence({
+      name: (names.blockName || EMPTY_STRING),
+      value: [
+        AlgorithmIdentifier.schema(names.keyDerivationFunc || {}),
+        AlgorithmIdentifier.schema(names.encryptionScheme || {})
+      ]
+    }));
+  }
+
+  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,
+      PBES2Params.schema({
+        names: {
+          keyDerivationFunc: {
+            names: {
+              blockName: KEY_DERIVATION_FUNC
+            }
+          },
+          encryptionScheme: {
+            names: {
+              blockName: ENCRYPTION_SCHEME
+            }
+          }
+        }
+      })
+    );
+    AsnError.assertSchema(asn1, this.className);
+
+    // Get internal properties from parsed schema
+    this.keyDerivationFunc = new AlgorithmIdentifier({ schema: asn1.result.keyDerivationFunc });
+    this.encryptionScheme = new AlgorithmIdentifier({ schema: asn1.result.encryptionScheme });
+  }
+
+  public toSchema(): asn1js.Sequence {
+    // Construct and return new ASN.1 schema for this object
+    return (new asn1js.Sequence({
+      value: [
+        this.keyDerivationFunc.toSchema(),
+        this.encryptionScheme.toSchema()
+      ]
+    }));
+  }
+
+  public toJSON(): PBES2ParamsJson {
+    return {
+      keyDerivationFunc: this.keyDerivationFunc.toJSON(),
+      encryptionScheme: this.encryptionScheme.toJSON()
+    };
+  }
+
+}