Electronic device and method for protecting electronic keys using the same

An electronic device, comprising:

• a storage device;
• at least one processor;
• and
• one or more modules that are stored in the storage device and are executed by the at least one processor, the one or more modules comprising instructions:
• to set a plurality of hash functions;
• to divide an electronic key into a plurality of key segments, and create a data storage structure for each of the plurality of key segments, the data storage structure comprising a first bit stream and a second bit stream, the first bit stream comprising one of the plurality of key segments, the second bit stream recording a number of bits of the key segment stored in the first bit stream;
• to calculate a hash address for each of the plurality of key segments of the electronic key using each of the plurality of hash functions, and obtaining a plurality of hash addresses of the plurality of key segments corresponding to the plurality of hash functions;
• and
• to store information of the data storage structure of each of the plurality of key segments in a hash table according to the hash address of the key segment corresponding to one of the plurality of hash functions.

A non-transitory storage medium having stored thereon instructions that, when executed by a processor of an electronic device, causes the processor to perform a method for protecting electronic keys, the method comprising:

• setting a plurality of hash functions;
• dividing an electronic key into a plurality of key segments, and creating a data storage structure for each of the plurality of key segments, the data storage structure comprising a first bit stream and a second bit stream, the first bit stream comprising one of the plurality of key segments, the second bit stream recording a number of bits of the key segment stored in the first bit stream;
• calculating a hash address for each of the plurality of key segments of the electronic key using each of the plurality of hash functions, and obtaining a plurality of hash addresses of the plurality of key segments corresponding to the plurality of hash functions;
• and
• storing information of the data storage structure of each of the plurality of key segments in a hash table according to the hash address of the key segment corresponding to one of the plurality of hash functions.