Key management method and system

Disclosed are a key management method and system. A master key is remotely downloaded to avoid the problem that the master key is not issued to a merchant until the master key needs be downloaded on a POS terminal, so as to reduce logistics costs and maintenance costs. When a key is remotely downloa...

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Bibliographic Details
Main Authors Su Wenlong, Meng Luqiang, Yao Chengyong, Chen Ruibing
Format Patent
LanguageEnglish
Published 11.07.2017
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
PHYSICS
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary:Disclosed are a key management method and system. A master key is remotely downloaded to avoid the problem that the master key is not issued to a merchant until the master key needs be downloaded on a POS terminal, so as to reduce logistics costs and maintenance costs. When a key is remotely downloaded, a KMS system uses a symmetric algorithm to encrypt the key to be transmitted to ensure that the encrypted key can only be decrypted by a corresponding POS terminal, thereby ensuring the security of data transmission. During bidirectional authentication, an application program of the POS terminal can only contact an encrypted text form of the key instead of a plain text key needing to be remotely downloaded to the POS terminal, thereby ensuring security in reproduction.
Bibliography:Application Number: US201414775633