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1.发明公开SYSTEM FOR ENCRYPTING AND DECRYPTING A PLAINTEXT MESSAGE WITH AUTHENTICATION 审中-公开系统加密和解密需要鉴定的CLEAR短信
公开(公告)号：EP2430793A4
公开(公告)日：2015-07-29
申请号：EP10775679
申请日：2010-05-17
CPC分类号： H04L9/3273 , H04L9/0631 , H04L2209/08 , H04L2209/12 , H04L2209/20 , H04L2209/38 , H04L2209/805
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2.发明公开SYSTEM AND METHOD FOR SECURELY IDENTIFYING AND AUTHENTICATING DEVICES IN A SYMMETRIC ENCRYPTION SYSTEM 审中-公开SYSTEM AND METHOD FOR均衡加密系统固定的识别和认证器件
公开(公告)号：EP2430790A4
公开(公告)日：2015-07-29
申请号：EP10775554
申请日：2010-05-13
CPC分类号： H04L9/3271 , H04L9/0618 , H04L9/0662 , H04L9/0838 , H04L9/3273 , H04L2209/805 , H04W4/008
摘要： The present invention describes a system and method for securely identifying and authenticating devices in a symmetric encryption system. An RFID tag can generate indicators using encryption state variables and a symmetric key. An RFID reader, after receiving the encryption state variables from the tag, may identify the tag by performing an exhaustive key search in a key database. Each key in the database may be tested by using the key and encryption state variables to perform an encryption operation similar to that performed by the tag. The result is then compared with the received tag indicators to determine if the tag has been identified. A rotor-based encryption scheme provides for a low cost key search while providing resilience against cloning, tracking, tampering and replay attacks.
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