发明名称 |
METHOD OF GENERATING MESSAGE AUTHENTICATION CODE AND AUTHENTICATION DEVICE AND AUTHENTICATION REQUEST DEVICE USING THE METHOD |
摘要 |
Provided are a method of generating a message authentication code and an authentication device and an authentication request device using the method. The method includes generating a second secret key by encrypting seed data, a first secret key, and first auxiliary data using an encryption algorithm; and encrypting the seed data, the second secret key, and second auxiliary data using the encryption algorithm, wherein the encryption algorithm receives data of a preset base number of bits and encrypts the received data, and the number of bits of the second auxiliary data varies according to a difference between the number of bits of the first secret key and the number of bits of the second secret key. |
申请公布号 |
US2014341373(A1) |
申请公布日期 |
2014.11.20 |
申请号 |
US201414280898 |
申请日期 |
2014.05.19 |
申请人 |
SILICON WORKS CO., LTD. |
发明人 |
Song Myoung Soo;Kim Jae Wan;Son Young Suk;Oh Hyung Seog |
分类号 |
H04L9/08 |
主分类号 |
H04L9/08 |
代理机构 |
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代理人 |
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主权项 |
1. A method of generating a message authentication code, the method comprising:
generating a second secret key by encrypting seed data, a first secret key, and first auxiliary data using an encryption algorithm; and encrypting the seed data, the second secret key, and second auxiliary data using the encryption algorithm, wherein the encryption algorithm receives data of a preset base number of bits and encrypts the received data, and the number of bits of the second auxiliary data varies according to a difference between the number of bits of the first secret key and the number of bits of the second secret key. |
地址 |
Daejeon KR |