Random number generator, encryption/decryption secret key generator and method based on characteristics of memory cells

A method for generating a random number, applied in a random number generator coupled to a flash memory is disclosed. the method comprises: selecting a plurality of cells from the flash memory; initializing the selecting cells of the flash memory; programming the selecting cells to obtain a pluralit...

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Bibliographische Detailangaben
Hauptverfasser: Huang, Shih-Fu, Xiao, Jing-Long, Chen, Cheng-Yu, Hsieh, Yi-Lin
Format: Patent
Sprache:eng
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Zusammenfassung:A method for generating a random number, applied in a random number generator coupled to a flash memory is disclosed. the method comprises: selecting a plurality of cells from the flash memory; initializing the selecting cells of the flash memory; programming the selecting cells to obtain a plurality of first potential values of the selecting cells; re-initializing the selecting cells of the flash memory; re-programming the selecting cells to obtain a plurality of second potential values of the selecting cells; and processing the first potential values and the second potential values according to a predetermined algorithm to generating the random number.