发明名称 |
TWO-DIMENSIONAL CODE AUTHENTICATION DEVICE, TWO-DIMENSIONAL CODE AUTHENTICATION METHOD AND PROGRAM |
摘要 |
A two-dimensional code authenticating device reads a self-authentication two-dimensional code to obtain an RS bit string, and detects a bit string c' as an error using the RS bit string. Next, an exclusive OR between a bit string 1 included in the RS bit string and the bit string c' detected as an error is calculated to obtain a bit string c', and a bit string md is obtained by decrypting the bit string c' through a scheme corresponding to the encryption. Subsequently, it is determined whether or not the decrypted bit string md matches the bit string m included in the RS bit string, thereby authenticating the self-authentication two-dimensional code. |
申请公布号 |
EP2765531(B1) |
申请公布日期 |
2016.05.18 |
申请号 |
EP20120884348 |
申请日期 |
2012.08.17 |
申请人 |
A.T COMMUNICATIONS CO., LTD. |
发明人 |
SAKINA, KEN-ICHI;AZUMA, YOUICHI;KISHI, HIDEAKI |
分类号 |
G06K7/00;G06K7/14;G06K9/18 |
主分类号 |
G06K7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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