harmony 鸿蒙Querying Key Aliases

2025-06-12
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Querying Key Aliases

This topic walks you through on how to query key aliases. >NOTE
> The mini-system devices do not support query of key aliases.

How to Develop

Initialize the key property set.

Set the tag for querying the key aliases. The tag can only be HUKS_TAG_AUTH_STORAGE_LEVEL.

Use listAliases to query the key aliases.

/*
 * The following example uses promise-based APIs to query key aliases.
 */
import { huks } from '@kit.UniversalKeystoreKit'

async function testListAliases() {
  /* 1. Initialize the key property set. */
  let queryProperties: Array<huks.HuksParam> = [
    {
      tag: huks.HuksTag.HUKS_TAG_AUTH_STORAGE_LEVEL,
      value: huks.HuksAuthStorageLevel.HUKS_AUTH_STORAGE_LEVEL_DE
    }
  ];
  let queryOptions: huks.HuksOptions = {
    properties: queryProperties
  };

  try {
    /* 2. Query key aliases. */
    let result: huks.HuksListAliasesReturnResult = await huks.listAliases(queryOptions);
    console.info(`promise: listAliases success`);
  } catch (error) {
    console.error(`promise: listAliases fail`);
  }
}