Method, system and WAPI terminal for transmitting e-mail

An e-mail and sending terminal technology, applied in the field of communication, can solve the problem of insecurity in sending e-mails, and achieve the effect of ensuring business security
CN101466079AInactive Publication Date: 2009-06-24ZTE CORP
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
ZTE CORP
Publication Date
2009-06-24
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a transmitting method for e-mails, a system and a WAPI terminal thereof; wherein, the method comprises that: a transmitting terminal utilizes a session key randomly generated to encrypt mail text and signature so as to obtain the cryptograph; wherein, the signature can be obtained by utilizing a private key thereof to encrypt the mail text by the transmitting terminal; the transmitting terminal can encrypt the session key by utilizing a public key of a receiving terminal, and then sends the encrypted session key and the cryptograph to the receiving terminal; the receiving terminal receives the encrypted session key and the cryptograph from the transmitting terminal; the session key can be decrypted by utilizing the private key thereof; the cryptograph can be decrypted by utilizing the decrypted session key, so as to obtain the mail text and the signature; the receiving terminal can obtain the decrypted result by utilizing the decrypted signature of the public key of the transmitting terminal, and can verify the transmitting terminal according to the decrypted result and the decrypted mail text. The business security of the e-mails at the WAPI terminal can be ensured by adopting the method and the system.
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Description

technical field

[0001] The present invention relates to the communication field, in particular, to an e-mail transmission method, system and WAPI terminal. Background technique

[0002] In order to solve the security loopholes in the Wired Equivalent Privacy (WEP) security mechanism defined in the international standard ISO / IEC 802.11 for wireless local area networks, my country promulgated the national standard for wireless local area networks and its No. 1 amendment. WLAN Authentication and Privacy Infrastructure (WAPI for short) is adopted to replace WEP to solve the security problem of WLAN.

[0003] The WAPI is composed of a wireless local area network authentication infrastructure (WLAN Authentication Infrastructure, WAI for short) and a wireless local area network privacy infrastructure (WLAN Privacy Infrastructure, WPI for short). Among them, WAI uses public key encryption technology for mutual identity authentication between terminals and access points; WPI uses the...

Claims

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