1 files changed, 213 insertions, 0 deletions
diff --git a/third_party/js/PKI.js/src/ECCCMSSharedInfo.ts b/third_party/js/PKI.js/src/ECCCMSSharedInfo.ts
new file mode 100644
index 0000000000..88386b28fe
--- /dev/null
+++ b/third_party/js/PKI.js/src/ECCCMSSharedInfo.ts
@@ -0,0 +1,213 @@
+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_INFO = "keyInfo";
+const ENTITY_U_INFO = "entityUInfo";
+const SUPP_PUB_INFO = "suppPubInfo";
+const CLEAR_PROPS = [
+  KEY_INFO,
+  ENTITY_U_INFO,
+  SUPP_PUB_INFO
+];
+
+export interface IECCCMSSharedInfo {
+  keyInfo: AlgorithmIdentifier;
+  entityUInfo?: asn1js.OctetString;
+  suppPubInfo: asn1js.OctetString;
+}
+
+export interface ECCCMSSharedInfoJson {
+  keyInfo: AlgorithmIdentifierJson;
+  entityUInfo?: asn1js.OctetStringJson;
+  suppPubInfo: asn1js.OctetStringJson;
+}
+
+export type ECCCMSSharedInfoParameters = PkiObjectParameters & Partial<IECCCMSSharedInfo>;
+
+/**
+ * Represents the ECCCMSSharedInfo structure described in [RFC6318](https://datatracker.ietf.org/doc/html/rfc6318)
+ */
+export class ECCCMSSharedInfo extends PkiObject implements IECCCMSSharedInfo {
+
+  public static override CLASS_NAME = "ECCCMSSharedInfo";
+
+  public keyInfo!: AlgorithmIdentifier;
+  public entityUInfo?: asn1js.OctetString;
+  public suppPubInfo!: asn1js.OctetString;
+
+  /**
+   * Initializes a new instance of the {@link ECCCMSSharedInfo} class
+   * @param parameters Initialization parameters
+   */
+  constructor(parameters: ECCCMSSharedInfoParameters = {}) {
+    super();
+
+    this.keyInfo = pvutils.getParametersValue(parameters, KEY_INFO, ECCCMSSharedInfo.defaultValues(KEY_INFO));
+    if (ENTITY_U_INFO in parameters) {
+      this.entityUInfo = pvutils.getParametersValue(parameters, ENTITY_U_INFO, ECCCMSSharedInfo.defaultValues(ENTITY_U_INFO));
+    }
+    this.suppPubInfo = pvutils.getParametersValue(parameters, SUPP_PUB_INFO, ECCCMSSharedInfo.defaultValues(SUPP_PUB_INFO));
+
+    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_INFO): AlgorithmIdentifier;
+  public static override defaultValues(memberName: typeof ENTITY_U_INFO): asn1js.OctetString;
+  public static override defaultValues(memberName: typeof SUPP_PUB_INFO): asn1js.OctetString;
+  public static override defaultValues(memberName: string): any {
+    switch (memberName) {
+      case KEY_INFO:
+        return new AlgorithmIdentifier();
+      case ENTITY_U_INFO:
+        return new asn1js.OctetString();
+      case SUPP_PUB_INFO:
+        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 KEY_INFO:
+      case ENTITY_U_INFO:
+      case SUPP_PUB_INFO:
+        return (memberValue.isEqual(ECCCMSSharedInfo.defaultValues(memberName as typeof SUPP_PUB_INFO)));
+      default:
+        return super.defaultValues(memberName);
+    }
+  }
+
+  /**
+   * @inheritdoc
+   * @asn ASN.1 schema
+   * ```asn
+   * ECC-CMS-SharedInfo ::= SEQUENCE {
+   *    keyInfo      AlgorithmIdentifier,
+   *    entityUInfo  [0] EXPLICIT OCTET STRING OPTIONAL,
+   *    suppPubInfo  [2] EXPLICIT OCTET STRING }
+   *```
+   */
+  public static override schema(parameters: Schema.SchemaParameters<{
+    keyInfo?: AlgorithmIdentifierSchema;
+    entityUInfo?: string;
+    suppPubInfo?: string;
+  }> = {}): 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.keyInfo || {}),
+        new asn1js.Constructed({
+          name: (names.entityUInfo || EMPTY_STRING),
+          idBlock: {
+            tagClass: 3, // CONTEXT-SPECIFIC
+            tagNumber: 0 // [0]
+          },
+          optional: true,
+          value: [new asn1js.OctetString()]
+        }),
+        new asn1js.Constructed({
+          name: (names.suppPubInfo || EMPTY_STRING),
+          idBlock: {
+            tagClass: 3, // CONTEXT-SPECIFIC
+            tagNumber: 2 // [2]
+          },
+          value: [new asn1js.OctetString()]
+        })
+      ]
+    }));
+  }
+
+  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,
+      ECCCMSSharedInfo.schema({
+        names: {
+          keyInfo: {
+            names: {
+              blockName: KEY_INFO
+            }
+          },
+          entityUInfo: ENTITY_U_INFO,
+          suppPubInfo: SUPP_PUB_INFO
+        }
+      })
+    );
+    AsnError.assertSchema(asn1, this.className);
+
+    // Get internal properties from parsed schema
+    this.keyInfo = new AlgorithmIdentifier({ schema: asn1.result.keyInfo });
+    if (ENTITY_U_INFO in asn1.result)
+      this.entityUInfo = asn1.result.entityUInfo.valueBlock.value[0];
+    this.suppPubInfo = asn1.result.suppPubInfo.valueBlock.value[0];
+  }
+
+  public toSchema(): asn1js.Sequence {
+    //#region Create output array for sequence
+    const outputArray = [];
+
+    outputArray.push(this.keyInfo.toSchema());
+
+    if (this.entityUInfo) {
+      outputArray.push(new asn1js.Constructed({
+        idBlock: {
+          tagClass: 3, // CONTEXT-SPECIFIC
+          tagNumber: 0 // [0]
+        },
+        value: [this.entityUInfo]
+      }));
+    }
+
+    outputArray.push(new asn1js.Constructed({
+      idBlock: {
+        tagClass: 3, // CONTEXT-SPECIFIC
+        tagNumber: 2 // [2]
+      },
+      value: [this.suppPubInfo]
+    }));
+    //#endregion
+
+    //#region Construct and return new ASN.1 schema for this object
+    return new asn1js.Sequence({
+      value: outputArray
+    });
+    //#endregion
+  }
+
+  public toJSON(): ECCCMSSharedInfoJson {
+    const res: ECCCMSSharedInfoJson = {
+      keyInfo: this.keyInfo.toJSON(),
+      suppPubInfo: this.suppPubInfo.toJSON(),
+    };
+
+    if (this.entityUInfo) {
+      res.entityUInfo = this.entityUInfo.toJSON();
+    }
+
+    return res;
+  }
+
+}