File encryption method, file decryption method, electronic device, and storage medium

An electronic device comprising:

• at least one memory configured to store computer program code;
• and
• at least one processor configured to access the at least one memory and operate according to the computer program code, the computer program code including:
• obtaining code configured to cause the at least one processor to obtain an original file to be encrypted;
• encrypting code configured to cause the at least one processor to encrypt header data of the original file to obtain encrypted header data, the header data comprising metadata of the original file;
• storing code configured to cause the at least one processor to store the encrypted header data;
• recording code configured to cause the at least one processor to record, to correspond to a file identifier of the original file, a first storage path of the encrypted header data;
• partitioning code configured to cause the at least one processor to partition file data into segments, wherein the file data is different from the header data in the original file,
• wherein the storing code is further configured to cause the at least one processor to store the segments in a disordered sequence,
• wherein the recording code is further configured to cause the at least one processor to record, to correspond to the file identifier, second storage paths of the segments along with an actual sequence of the segments in the original file, and
• wherein the storing code is further configured to cause the at least one processor to:
• allocate a random new file name for each of the segments;
• and
• store, in a specified file directory or a randomly created file directory, each of the segments into a segment file that is named after the random new file name for a respective one of the segments.

A non-transitory computer-readable storage medium storing computer readable instructions, the computer readable instructions, when executed by at least one processor, causing the at least one processor to perform:

• obtaining an original file to be encrypted;
• encrypting header data of the original file to obtain encrypted header data, the header data comprising metadata of the original file;
• storing the encrypted header data;
• recording, to correspond to a file identifier of the original file, a first storage path of the encrypted header data;
• partitioning file data into segments, wherein the file data is different from the header data in the original file;
• storing the segments in a disordered sequence;
• and
• recording, to correspond to the file identifier, second storage paths of the segments and along with an actual sequence of the segments in the original file,
• wherein the storing the segments comprises:
• allocating a random new file name for each of the segments;
• and
• storing, in a specified file directory or a randomly created file directory, each of the segments into a segment file that is named after the random new file name for a respective one of the segments.