程序包 ohos.security.asset

Provides interfaces to securely store, delete, update, and query short sensitive data.

Asset storage has the following advantages:
• Convenient: applies to a broad range of scenarios where sensitive data needs to be stored or managed.
• Secure: stores keys in a trusted execution environment (TEE), adopts optimal encryption and decryption algorithms, and encrypts stored data.
• Efficient: decreases the time required for developing security features, such as the selection and iteration of encryption and decryption algorithms, and the storage and management of key asset data.

Asset storage applies to sensitive data containing a maximum of 64 bytes, such as the username, password, credit card information, and app token. If the data contains more than 64 bytes, you are advised to use other storage types.

Asset storage is subject to the storage space of a device. It is recommended that Asset stores a maximum of 100 records of an application.

从以下版本开始:

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类概要

类	说明
AssetOperator	Implements the AssetOperatorAbs interfaces and provides the capability of storing key asset data.
AssetOperatorAbs	An abstract class that provides the abstract methods for storing key asset data.
AssetResult	Provides the result of storing key asset data.