发明名称 |
Attribute based encryption using lattices |
摘要 |
A master public key is generated as a first set of lattices based on a set of attributes, along with a random vector. A master secret key is generated as a set of trap door lattices corresponding to the first set of lattices. A user secret key is generated for a user's particular set of attributes using the master secret key. The user secret key is a set of values in a vector that are chosen to satisfy a reconstruction function for reconstructing the random vector using the first set of lattices. Information is encrypted to a given set of attributes using the user secret key, the given set of attributes and the user secret key. The information is decrypted by a second user having the given set of attributes using the second user's secret key. |
申请公布号 |
US8634563(B2) |
申请公布日期 |
2014.01.21 |
申请号 |
US20100972420 |
申请日期 |
2010.12.17 |
申请人 |
VAIKUNTANATHAN VINOD;VOULGARIS PANAGIOTIS;MICROSOFT CORPORATION |
发明人 |
VAIKUNTANATHAN VINOD;VOULGARIS PANAGIOTIS |
分类号 |
H04L29/06 |
主分类号 |
H04L29/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|