公开(公告)号：US20160112195A1

公开(公告)日：2016-04-21

申请号：US14886523

申请日：2015-10-19

Applicant: dSPACE digital signal processing and control engineering GmbH

Inventor： Janek JOCHHEIM ,  Karsten KRUEGEL ,  Johannes BLOEMER ,  Gennadij LISKE

IPC: H04L9/14 ,  G06F9/44 ,  H04L9/08 ,  H04L9/00 ,  H04L9/30

CPC classification number: H04L9/14 ,  G06F8/35 ,  G06F21/10 ,  H04L9/007 ,  H04L9/0816 ,  H04L9/30

Abstract: An encryption method is provided that has a software model of a technical system, the model including software components is encrypted by a public key and a decryption structure, wherein the latter includes definitions of component groups of the software model. The decryption structure is integrated at least partially into the encrypted software model. Correspondingly, in a decryption method according to the invention, via a secret key that likewise comprises definitions of component groups, only the particular component groups are decrypted whose definitions the secret key includes in agreement with the definitions of the encrypted software model. The definitions of the secret key can be extended after the fact by a key extension, so that additional component groups can be decrypted with an extended secret key.

Abstract translation: 提供了具有技术系统的软件模型的加密方法，包括软件组件的模型通过公钥和解密结构加密，其中后者包括软件模型的组件组的定义。 解密结构至少部分地集成到加密的软件模型中。 相应地，在根据本发明的解密方法中，经由同样包括组件组的定义的秘密密钥，仅对特定组件组进行解密，其秘密密钥的定义与加密的软件模型的定义一致。 秘密密钥的定义可以在事实之后通过密钥扩展扩展，以便可以使用扩展密钥来解密附加组件组。