| 发明名称 |
BACKUP AND INVALIDATION OF AUTHENTICATION CREDENTIALS |
| 摘要 |
A method for a re-issuance of an attribute-based credential of an issuer of the attribute-based credential for a user may be provided. The user is holding backup values derived from a first credential previously obtained from the issuer, wherein the first credential is built using at least a first value of at least one authentication pair. The method comprises receiving by the issuer from the user a set of values derived from the backup values comprising a second value of the at least one authentication pair, validating by the issuer that the second value is a valid authentication answer with respect to the first value and whether the set of values was derived from a valid first credential, and providing by the issuer a second credential to the user based on the first set of values. |
| 申请公布号 |
US2015381373(A1) |
申请公布日期 |
2015.12.31 |
| 申请号 |
US201514719350 |
申请日期 |
2015.05.22 |
| 申请人 |
International Business Machines Corporation |
发明人 |
Camenisch Jan L.;Krenn Stephan;Lehmann Anja;Neven Gregory |
| 分类号 |
H04L9/32 |
主分类号 |
H04L9/32 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for a re-issuance of an attribute-based credential of an issuer of the attribute-based credential for a user, wherein the user holds backup values derived from a first credential previously obtained from the issuer, wherein the first credential is built using at least a first value of at least one authentication pair, the method comprising:
receiving by the issuer from the user a set of values from the backup values comprising a second value of the at least one authentication pair; validating by the issuer that the second value is a valid authentication answer with respect to the first value and whether the set of values was derived from a valid first credential; and providing by the issuer a second credential to the user based on the first set of values. |
| 地址 |
Armonk NY US |
