Title: Firmware encrypting and decrypting method and an apparatus using the same
Application Number: 200510050920 Application Date: 2005.01.10
Publication Number: 1641717 Publication Date: 2005.07.20
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G09C1/00
Applicant(s) Name: Samsung Electronics Co., Ltd. Address:
Inventor(s) Name: Kim In-koo;Lee Jong-gyou
Attorney & Agent: huang xiaolin wang zhisen
Abstract:
    A method of encrypting and decrypting a firmware used in electronic devices and an apparatus using the same. The firmware encryption method includes, receiving a predetermined special key data; generating an encryption key data from the predetermined special key data using a predetermined random number; generating an encryption data corresponding to firmware address information to be stored to a memory based on the encryption key data; and generating an encrypted firmware data by performing an XOR operation on the encryption data and firmware data to be stored in the firmware address.
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