| 摘要 |
PURPOSE: A method for the leveled data security of a computing device is provided to secure security and convenience simultaneously by dividing the data into each level according to the security necessity and applying a different security algorithm to each level. CONSTITUTION: After certifying and permitting the access to the device, a security level of the data is confirmed if the data access is requested from an application program of a security management program module(S215). The data access is certified by carrying out the security algorithm previously set to the confirmed security level(S217,S218,S219). In case of the access certification according to the result carrying out the security algorithm, the data access is permitted(S221).
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