Electronic device for encrypting user data

An electronic device includes a memory and a processor. The memory includes a data partition, a key storage partition, and a key backup partition. The processor is operably connected to the memory. The processor is configured to generate an encryption key for the generated at least one data folder in the data partition to store the encryption key in the key storage partition. The processor is further configured to store a backup encryption key equal to the encryption key in the key backup partition. The processor is further configured to store an integrity file including a checksum of the encryption key in the key backup partition. 一种电子装置包括存储器和处理器。存储器包括数据分区、密钥存储分区和密钥备份分区。处理器可操作地连接到存储器。处理器被配置成生成针对数据分区中所生成的至少一个数据文件夹的加密密钥，以将加密密钥存储在密钥存储分区中。处理器还被配置成将与加密密钥相等的备份加密密钥存储在密钥备份分区中。处理器进一步被配置成将包括加密密钥的校验和的完整性文件存储在密钥备份分区中。