DATA SECURING METHOD, DATA SECURING SYSTEM AND DATA CARRIER

摘要

A data securing method, a data securing system and a data carrier are provided. The data securing method comprises an encryption procedure for encrypting a data or performing an authentication procedure. The encryption procedure includes the following steps. A first personal identification number is obtained. A first random number is generated. A first key is obtained according to the first personal identification number and the first random number. A first secure checksum is obtained according to the first key. The first random number and part of the first secure checksum are stored. The data is encrypted. The authentication procedure is performed according to the first key.

主权项

1. A data securing method, comprising an encryption procedure for encrypting a data or performing an authentication procedure, the encryption procedure including:
obtaining a first personal identification number; generating a first random number; obtaining a first key according to the first personal identification number and the first random number; obtaining a first secure checksum according to the first key; storing the first random number and part of the first secure checksum; and encrypting the data; wherein the authentication procedure is performed according to the first key.