Obtaining Key Properties (ArkTS)

This topic describes how to obtain properties of a key. Before the operation, ensure that the key exists in HUKS.

How to Develop

1. Set the key alias (keyAlias), which cannot exceed 64 bytes.

2. Use getKeyItemProperties to obtain the properties of the key based on keyAlias and options. options is a reserved parameter and is left empty currently.

3. You can find the key properties in the properties field in the HuksReturnResult object.

import huks from '@ohos.security.huks';
/* 1. Set the key alias. */
let keyAlias = 'keyAlias';
/* Leave options empty. */
let emptyOptions: huks.HuksOptions = {
    properties: []
};
try {
    /* 2. Obtain key properties. */
    huks.getKeyItemProperties(keyAlias, emptyOptions, (error, data) => {
        if (error) {
            console.error(`callback: getKeyItemProperties failed` + error);
        } else {
            console.info(`callback: getKeyItemProperties success, data = ${JSON.stringify(data)}`);
        }
    });
} catch (error) {
    console.error(`callback: getKeyItemProperties input arg invalid` + error);
}