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公开(公告)号：US20190173670A1
公开(公告)日：2019-06-06
申请号：US16256129
申请日：2019-01-24
摘要： The method provided in the embodiments of this application includes: obtaining, by a server, a first key (Ksm) shared with a gateway; receiving, by the server, an encrypted first random factor (Rand-M-Encry), a first data digest (Data-Hash), and encrypted first data (Data-Encry) that are sent by a terminal; decrypting, by the server, the Rand-M-Encry by using the Ksm, to obtain a second random factor (Rand-M′); performing, by the server, an operation on the Rand-M′ and Kpsa-xi by using a second preset algorithm, to generate a third key (K′sx); decrypting, by the server, the Data-Encry by using the K′sx, to obtain second data (Data′); performing, by the server, an operation on the K′sx and the Data′ based on a first preset algorithm to obtain a second data digest (Data-Hash′); and if the Data-Hash′ is the same as the Data-Hash, determining, by the server, that authentication of the terminal succeeds.
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公开(公告)号：US20190028429A1
公开(公告)日：2019-01-24
申请号：US16142978
申请日：2018-09-26
CPC分类号： H04L61/2521 , H04L43/12 , H04L61/2514 , H04L61/2553 , H04L61/2557 , H04L63/0236 , H04L67/12
摘要： A method and an apparatus for keeping network address translation mapping alive are provided. The method includes: receiving, by a network address translation NAT device, a probe request sent by an internal network device; sending a probe response to the internal network device, where the probe response carries indication information, and the indication information indicates that the internal network device does not actively initiate a heartbeat message to keep network address translation mapping alive; allocating at least two public network addresses to the internal network device from an address resource pool, and using in each time period of a subsequent session process between the internal network device and an external network device, one of the at least two public network addresses as a current active address in the time period, to map the private network address of the internal network device to the current active address.
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