| 发明名称 |
SPLITTING S-BOXES IN A WHITE-BOX IMPLEMENTATION TO RESIST ATTACKS |
| 摘要 |
A method of performing a keyed cryptographic operation mapping an input message to an output message, wherein the input message comprises m input data and the output message comprises m output data and wherein the cryptographic operation includes at least one round and the cryptographic operation specifies a substitution box for mapping input data into output data, including: transforming each of the m input data into n output data using n split substitution boxes, wherein the n split substitution boxes sum to the specified substitution box; and mixing and combining the m×n output data. |
| 申请公布号 |
US2015270950(A1) |
申请公布日期 |
2015.09.24 |
| 申请号 |
US201414219734 |
申请日期 |
2014.03.19 |
| 申请人 |
NXP B.V. |
发明人 |
Michiels Wil;Hoogerbrugge Jan |
| 分类号 |
H04L9/00;H04L29/06 |
主分类号 |
H04L9/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method of performing a keyed cryptographic operation mapping an input message to an output message, wherein the input message comprises m input data and the output message comprises m output data and wherein the cryptographic operation includes at least one round and the cryptographic operation specifies a substitution box for mapping input data into output data, comprising:
transforming each of the m input data into n output data using n split substitution boxes, wherein the n split substitution boxes sum to the specified substitution box; and mixing and combining the m×n output data. |
| 地址 |
Eindhoven NL |
