CN101383696A - Digital envelope ciphering mail generating and reading method - Google Patents
Digital envelope ciphering mail generating and reading method Download PDFInfo
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- CN101383696A CN101383696A CN 200710145763 CN200710145763A CN101383696A CN 101383696 A CN101383696 A CN 101383696A CN 200710145763 CN200710145763 CN 200710145763 CN 200710145763 A CN200710145763 A CN 200710145763A CN 101383696 A CN101383696 A CN 101383696A
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Abstract
The invention relates to a generation and read method of a digital envelope privacy enhanced mail, which comprises: the mail is edited on a PC computer and is encrypted to generate cryptograph data, one section of data marking language format is chosen to be used as a digital envelope, and a new mail is created, the digital envelope is used as the text of the new mail, and the cryptograph data is used as the attachment of the new mail, so the digital envelope privacy enhanced mail is generated to be sent an addressee, and the mail is shown and read after being decrypted. The invention introduces the traditional writing and sending habit to the e-mail, the content of the mail seems to be packaged by the digital envelope, the CI design and the user individuation characteristics and the like are used as the content of the digital envelope by the writing way, so the safety and the interest are increased, and one layer or several layers of digital envelopes can be sleeved, the means and the manners of showing the individuation characteristics are increased, so great network application value is obtained. The invention has the advantages that the method is simple, the operation is easy without adding hardware, the content of the digital envelope can be obviously shown by using the design advantage of software, the characteristics can be shown through various means, the content of the mail can be encrypted, and the like.
Description
Technical field
The invention belongs to networking technology area, specifically a kind of generation of digital envelope ciphering mail and reading method.
Background technology
Along with Internet development, e-mail system has become the important means of communication of people.In the network information epoch in modern times, Email has become one of means of communication of most important and the most indispensable personal lifestyle of modern and work.
In real society, each enterprise all wants to propagate by variety of way the brand and the image of enterprise, at digital economy and Internet (Internet, full name interconnection network, general the Internet, internet or the internet of claiming of Chinese is meant the maximum in the world global internet that develops on ARPA net basis.) cybertimes of popularizing day by day, Email will become mould corporate image and carry out the marketing one sharp sword.How with the vivid propagation infiltration of enterprise in routine work, allow every employee all become " propagandist " of corporate image? for the company that a family pays attention to self-image, enterprise's mailbox user is more and more valued the user individual mailbox functions that embodies corporate culture and brand, wish in the daily commercial communications activity of enterprise, to embody brand names and image unified, standard, and obtain client's trust and respect.
For the mail personal user, the user is carrying out mail when writing, and always feels the taste of some " inflexible ".The netizen more sees the communication process that heavy mail brings and the enjoyment of self-expression from only being concerned about mail transmission and information transmission result, being converted to.User individual makes every addressee's mail all different, is good intimate service for the maintenance of emotion with cultivating, and is easy to cause people's attention and appreciation, and shows out oneself individual character and glamour.
All mailing systems are all being made unremitting efforts to aspect corporate image and the individual character propaganda at present, to meet user's demand in this respect, improve the market competitiveness of self, seize the market share.Conclude, following several method arranged:
1. HTML (HTML is provided, full name Hypertext Markup Language, the general HTML that claims of Chinese is a kind of simple marking language that is used to create hypertext document that can be from a platform transplantation to another platform, through being commonly used to create the Web page.) editor and mail HTML text, allow the user carry out the propaganda of corporate image and individual character thereon and be provided with.This scheme is the way of present main flow, and the user has greater flexibility and independence, and the change of mailing system seldom; Yet the requirement to the user is too high, design the corporate image and the individual character propaganda mail of a success, and the user has to comprehensively consider and the complicated operations setting, and can not be applied in the privacy enhanced mail.
2. plug-in unit is provided, on mail, inserts expression etc.This scheme is also popular, and the user is simple to operation, and effect is also good; The picture that inserts generally is to replace with additional character, and the few of variation of mail size does not require mail format yet.But e-mail sending and recipient need to install plug-in unit, and can not be applied in the privacy enhanced mail.The mutation that has is to insert picture at mail HTML text, the recipient do not required, but the essential plug-in unit of installing of transmit leg, mail can increase, and can not be applied in the privacy enhanced mail equally.
3. user individual digital signature shelves are provided, and this is the another kind of way of present main flow, adds one section by the corporate image of user's setting and the publicity pictures or the literal of personal characteristics in the body part back of mail.This scheme user has greater flexibility and independence, and less demanding, simple to operation to the user can be applied in the privacy enhanced mail.Yet, owing to be additional one section corporate image and individual character publicity pictures or literal that is provided with by the user in the body part back of mail, message body and CI Design and user individual feature are to be in the same page, message body and CI Design and user individual feature all are expressly or all are to encrypt ciphertext, the user sees text earlier, see corporate image and user individual feature again, corporate image and personal characteristics are not leading positions.
By retrieval relatively number of patent application be 01808602.0 patent application, be that a class is based on the online advertisement system that generates ELECTRONIC POSTMARK on Email, do not relate to the encryption and decryption of Email, use though all can use media advertisement, huge with difference of the present invention.
Summary of the invention
The objective of the invention is at Email User, provide a kind of generation and reading method of digital envelope ciphering mail, traditional paper medium mail is write letter, custom of posting a letter and feature are incorporated in the Email, make Email content as being encapsulated by digital envelope, the encrypted hiding ciphertext annex of the content of original Email as this digital envelope ciphering mail, CI Design and user individual feature etc. with clear-text way as the content on the digital envelope, after the user receives digital envelope ciphering mail, what at first see is content on the digital envelope, the mail original text that the sender write is encrypted to be hidden in the ciphertext annex of this digital envelope ciphering mail, the addressee passes through the ciphertext annex of deciphering digital envelope ciphering mail, thereby reads the mail original text that the sender writes.This method for designing distinguishes the content and the mail original text of corporate image and user individual etc. on the digital envelope with plaintext and the mode of encrypting ciphertext, and will this plaintext and ciphertext be combined into the complete mail of an envelope as the text of digital envelope ciphering mail and the mode of annex respectively, after the user gets the mail, it at first is the plaintext of seeing corporate image and user individual feature etc. on the digital envelope, see the mail original text by the decrypting ciphertext annex then, similarly be to collect mail in traditional post office, receive envelope letter, the tear initiation envelope is seen the content on the letter paper again.Because what the user at first saw is the content of representing sender's image and user individual on the digital envelope, therefore, this digital envelope mail can become a kind of extraordinary media that represents individual character, increased the interest of mail, simultaneously, owing to adopted encryption technology, Mail Contents carried out secrecy processing, just as mail is sealed by envelope.
Technical scheme of the present invention may further comprise the steps:
(1) on the PC or the webserver, open e-mail program,
(2) editor's mail original text comprises message body and/or annex,
(3) use E-mail encryption/decryption program encryption mail original text, generate encrypt data,
(4) on the PC or the webserver, use data that digital envelope imports one section page marks language format of procedure Selection as digital envelope,
(5) use e-mail program to create an envelope new mail, the addressee of this new mail is identical with the addressee of mail original text,
(6) with the text of above-mentioned digital envelope as new mail, with the annex of above-mentioned encrypt data, generate an envelope digital envelope ciphering mail of forming by digital envelope and encrypt data as new mail,
(7) by the Internet or local area network (LAN) above-mentioned digital envelope ciphering mail is sent to the mail recipient,
(8) mail recipient opens e-mail program on the PC or the webserver, receives above-mentioned digital envelope ciphering mail,
(9) demonstration and reading digital envelope,
(10) use the E-mail encryption/decryption program that privacy enhanced mail is decrypted, recover the mail original text, comprise message body and/or annex,
(11) show also reading mail original text.
Above-mentioned digital envelope ciphering mail can carry out multilayer nest, and concrete grammar is as follows:
(1) with the digital envelope ciphering mail that generates, as the mail original text,
(2) use E-mail encryption/decryption program encryption mail original text, generate encrypt data,
(3) use e-mail program to create an envelope new mail, the addressee of this new mail is identical with the addressee of mail original text,
(4) use data that digital envelope imports one section page marks language format of procedure Selection as digital envelope,
(5) digital envelope that step (4) is selected is as the text of the new mail of step (3) establishment, the annex of the new mail that the encrypt data that step (2) is generated is created as step (3), thereby be combined into the two-layer nested digital envelope ciphering mail of an envelope, comprise another digital envelope in the annex of this digital envelope ciphering mail.
The generation of above-described digital envelope ciphering mail and the digital envelope of reading method, be the data of one section page marks language format, these data comprise page body and/or plain text literal text and/or simulation postmark, wherein page body comprises picture and/or Flash and/or Streaming Media, and plain text literal text comprises title and/or explanation and/or advertising slogan.
The present invention expressly does text with digital envelope, former email encryption is preserved made annex, and with above text and the synthetic complete mail of an envelope of enclosure group, the addressee sees the plaintext of digital envelope earlier, has given full play to the instrumentality and the chance that represents individual character of mail; Simultaneously, the addressee is by the decrypting ciphertext annex, recover the original e-mail content in the ciphertext annex, the fail safe and the interest of mail have not only been increased, and can overlap one deck and multilayer digital envelope again on the digital envelope ciphering mail of the present invention, increased the means and the mode that represent personal characteristics, therefore had huge network application and be worth.The present invention has that method is simple, operation easily, do not need to increase hardware, can utilize the outstanding content that represents digital envelope of design advantage on the software, can be multi-level represent feature, can advantage such as encrypt Mail Contents.
Description of drawings
The present invention has following accompanying drawing
Fig. 1 digital envelope ciphering mail system configuration schematic diagram
Fig. 2 digital envelope ciphering mail system configuration schematic diagram
Fig. 3 digital envelope ciphering mail system configuration schematic diagram
Fig. 4 digital envelope ciphering mail system configuration schematic diagram
Fig. 5 digital envelope structural representation
The schematic flow sheet of the part of posting a letter is received in Fig. 6 tradition post office
The schematic flow sheet of Fig. 7 ordinary electronic mail transmission/reception
The schematic flow sheet of Fig. 8 digital envelope ciphering mail receiving and dispatching mail
The nested flow chart of Fig. 9 digital envelope
The nested flow chart of Figure 10 digital envelope
The nested flow chart of Figure 11 digital envelope
The nested flow chart of Figure 12 digital envelope
Figure 13 digital envelope ciphering mail editor schematic diagram
Figure 14 digital envelope ciphering mail structural representation
Figure 15 digital envelope ciphering mail deciphering back mail original text schematic diagram
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
Fig. 1～Fig. 4 is for can be used for four kinds of system configuration schematic diagrames of the present invention.The present invention is a kind of generation and reading method of digital envelope ciphering mail, this generation and reading method comprise that at least computer or server, e-mail program, E-mail encryption/decryption program and digital envelope import program four parts, this four part can be formed at least four kinds of system construction drawings as Fig. 1～Fig. 4 by different arrangement modes.Wherein, Fig. 1 represents that e-mail program operates on the machine (PC or server), and E-mail encryption/decryption program and digital envelope import program running at another machine (PC or server), and two machines link to each other by network; Fig. 2 represents e-mail program and E-mail encryption/decryption program running on a machine, and digital envelope imports program running on another machine, and two machines link to each other by network; Fig. 3 represents that e-mail program and digital envelope import program running on a machine, and the E-mail encryption/decryption program running is on another machine, and two machines link to each other by network; Fig. 4 represents that e-mail program, E-mail encryption/decryption program and the digital envelope program that imports all operates on same the machine, the user can be in these three programs of local runtime, also can be by the program on this machine of the long-range operation of access to netwoks, such as three programs passing through in the browser mode on the long-range operation machine in the Internet.
In Fig. 1～Fig. 4, e-mail program is used for writing, receiving and dispatching of Email and reading etc.; The said e-mail program of the present invention can be an e-mail program arbitrarily, such as the Foxmail of the Web mail of the Lotus of the Outlook Express of Microsoft, IBM Corporation, Netease 163, company of Tengxun and be used for Blackberry of mobile phone mail etc.The E-mail encryption/decryption program is used for: a, Email original text (may the contain annex) encrypting storing that the sender is finished writing are encrypt data of the present invention, so that as the ciphertext annex of digital envelope, the ciphertext annex deciphering of b, digital envelope ciphering mail that the addressee is received is reduced to the mail original text that the sender writes; The said E-mail encryption/decryption program of the present invention can be used the encryption and decryption technology of traditional certificate system, also can be based on the cryptographic technique of sign, such as the encryption and decryption technology on the outlook Express client software that can use Microsoft, also can use the encryption and decryption technology on the GTmail Mail Clients software of Ao Lian scientific ﹠ technical corporation.This encryption and decryption program can isolated operation, also can with the closely integrated operation together of e-mail program.It can be an independent module that digital envelope imports program, also can closely integrate with e-mail program, be used for the sender and select digital envelope, can by with the selection of e-mail program, insert the annex identical functions and realize, also can use the duplicating of windows, paste functionality to realize.
The structure of digital envelope is referring to Fig. 5.Digital envelope of the present invention is the data of one section page marks language format (including but not limited to HTML, XML etc.), and these data comprise that (but being not limited to) is with the lower part: page body, plain text literal text, simulation postmark etc.Wherein page body can be various pictures, Flash, Streaming Media etc., and plain text literal text can be title, explanation, advertising slogan etc., referring to Fig. 5.The present invention can provide the data of various page marks language formats on network, the user can select the content oneself like according to the demand of oneself.
The present invention is with the transmitting-receiving mail of traditional post office and the custom and the feature of reading mail, and in the use that is incorporated into internet email of image, the flow process of traditional post office transmitting-receiving mail is referring to Fig. 6, and the flow process of ordinary electronic mail transmission/reception is referring to Fig. 7.
Fig. 8 is the schematic flow sheet of digital envelope ciphering mail receiving and dispatching mail, and Fig. 9, Figure 10, Figure 11, Figure 12 are four kinds of nested schematic flow sheets of digital envelope, and Figure 13 is a digital envelope ciphering mail editor schematic diagram.The generation and the reading method of digital envelope ciphering mail of the present invention are as follows: the sender at first opens e-mail program, uses e-mail program editor message body, can have annex; Secondly, use the E-mail encryption/decryption program that encrypt data of the present invention is encrypted and saved as to message body together with annex, this encrypt data will be formed the digital envelope ciphering mail of band ciphertext annex as the ciphertext annex of digital envelope; And, use digital envelope to import the digital envelope (data of page marks language format) that procedure Selection oneself is liked; Simultaneously, use e-mail program to create the new mail of an envelope, this new mail has identical addressee (perhaps former mail is made amendment, form the new mail of an envelope) with the Email original text that the front sender finishes writing, referring to the nested flow process Figure 10 of digital envelope; And with the encrypt data that generates previously annex as this new mail, with the digital envelope selected text as this new mail, like this, this digital envelope and above-mentioned ciphertext annex just are combined into the complete digital envelope ciphering mail of an envelope (comprising digital envelope and ciphertext annex), send mail then to the addressee.
In this method, also can import digital envelope earlier, editor's mail original text is also encrypted, create new mail (having identical addressee) again or (for example revise former mail with the mail original text, adopt once more and send) formation one envelope new mail, referring to Figure 12, then they are combined into the complete digital envelope ciphering mail of an envelope; Earlier editor's mail original text and encrypting is created new mail (having identical addressee with the mail original text) again or is revised former mail, selects digital envelope then, referring to Fig. 9, and they is combined into the complete digital envelope mail of an envelope; In addition, also can edit the mail original text earlier, select digital envelope again, re-use the E-mail encryption/decryption program mail original text is encrypted to encrypt data, use e-mail program to create an envelope new mail (having identical addressee) then or revise former mail with the mail original text, referring to Figure 11, again with the text of digital envelope as new mail, with the ciphertext annex of encrypt data, thereby be combined into the complete digital envelope ciphering mail of an envelope (comprising digital envelope and ciphertext annex) as new mail.From step S10-S20 a variety of variations are arranged according to Fig. 8, more than slightly lift four kinds of situation explanations.
After the addressee gets the mail, see the digital envelope ciphering mail (band annex sign) of page marks language format earlier, referring to Figure 14.Use E-mail encryption/decryption program decrypting ciphertext annex, from the ciphertext annex of mail, recover sender's mail original text (comprising text and/or annex), referring to Figure 15.
Below, be example with the system shown in the accompanying drawing 4, the invention will be further described.The process of the generation of digital envelope ciphering mail, transmission, reception and reading is referring to Fig. 8, the nested process selecting Fig. 9 of digital envelope.The generation and the reading method of present embodiment digital envelope ciphering mail are as follows:
(1) sender execution in step S10 at first, open e-mail program, e-mail program, E-mail encryption/decryption program and digital envelope import program running on same PC or server or other machines that can move (referring to Fig. 4), the user can move this three programs by this machine, also can move this three programs by the access to netwoks remote machine, this remote mode can be that wired network also can be a wireless network, such as using e-mail program based on the browser mode of the Internet or by the 3G wireless network.The said e-mail program of the present invention can be an e-mail program arbitrarily, such as the Foxmail of the Web mail of the Lotus of the Outlook Express of Microsoft, IBM Corporation, Netease 163, company of Tengxun and be used for Blackberry of mobile phone mail etc.;
(2) execution in step S12 opens e-mail program, a newly-built envelope mail, according to known method, the particular content of editor's mail original text, for example, input addressee email address, the input mail matter topics, if annex is arranged, select to insert annex, write the message body content, up to the editor who finishes the mail original text, referring to Figure 13;
(3) secondly, execution in step S14, use the E-mail encryption/decryption program, the mail original text is encrypted the generation encrypt data, the E-mail encryption/decryption program can be used the encryption and decryption technology of traditional certificate system, also can be based on the cryptographic technique of sign,, also can use the encryption and decryption technology on the GTmail Mail Clients software of Ao Lian scientific ﹠ technical corporation such as the encryption and decryption technology on the outlookExpress client software that can use Microsoft.This encryption and decryption program can isolated operation, also can with the closely integrated operation together of e-mail program;
(4) execution in step S16, use e-mail program revise former mail or create an envelope new mail (this mail has identical addressee with the mail original text that step S12 generates);
(5) execution in step S18, use digital envelope to import program, at this diji, or the digital envelope of selecting the user to like at remote server by network, it can be an independent module that digital envelope imports program, also can closely integrate with e-mail program, is used for the sender and selects digital envelope, can by with the selection of e-mail program, insert the annex identical functions and realize, also can use the opening of windows program, duplicate, paste functionality realizes.For example, the browser that uses windows is at the data of opening one section page marks language format on the network or on this diji (digital envelope that the user likes), such as, a html file; Use the copy function of windows to duplicate this page data, use paste functionality to paste the text of creating new mail as step S16.The digital envelope of like this, just the user being liked imports and is text;
(6) then, the text of the new mail (perhaps amended mail) that execution in step S20, the digital envelope that step S18 is selected generate as step S16, such as can adopt the duplicating of existing email editor, paste, technology such as insertion; The ciphertext annex of the new mail (perhaps amended mail) that the encrypt data that step S14 is generated generates as step S16, such as annex selection, the insertion technology that can adopt the existing email editor, thereby be combined into the complete digital envelope ciphering mail of an envelope (comprising digital envelope and ciphertext annex);
(7) execution in step S22 sends to mail reception person by the Internet or local area network (LAN) with above-mentioned digital envelope ciphering mail, can carry out according to prior art;
(8) execution in step S24, mail reception person opens e-mail program on PC or server, receive above-mentioned digital envelope ciphering mail according to known method;
(9) execution in step S26, receive digital envelope ciphering mail after, at first show and read digital envelope, and contain the ciphertext annex, referring to accompanying drawing 14;
(10) execution in step S28, at this moment, machine moves corresponding E-mail encryption/decryption program, referring to Figure 14, with the deciphering of ciphertext annex, reverts to the mail original text, referring to Figure 15;
(11) execution in step S30 shows and the reading mail original text;
The addressee is after getting the mail, and what at first see is digital envelope, by the deciphering annex, just can see the mail original text that the sender writes.If the addressee does not use the E-mail encryption/decryption program, just can only see the content on the digital envelope, can not untie the ciphertext annex.
Step S12 can change to the sequencing of step S20, and multiple situation is arranged, and four kinds of situations commonly used are seen Fig. 9-Figure 12, and above step is to narrate by the flow process of Fig. 9 again, and other situations are analogized.
Repeated execution of steps S12-S20 can overlap digital envelope again, and constantly repeat down on digital envelope, just as using traditional papery mail, can overlap an envelope again in the envelope outside.By using the E-mail encryption/decryption program, the ciphertext annex of deciphering digital envelope ciphering mail can be with repeatedly nested digital envelope showing in layer.
By the above as seen, digital envelope ciphering mail is simple, easy-to-use, but multilayer nest is interesting strong, can demonstrate fully sender's personal characteristics, has huge media value; Simultaneously,, strengthened the fail safe and the confidentiality of mail, had huge commercial promise by encryption technology.
Below be a specific embodiment:
Sender Zhang San (addresses of items of mail is zhang@abc.com), send an envelope digital envelope ciphering mail for addressee Li Si (addresses of items of mail is li@xyz.com), Zhang San and Li Si receive and dispatch digital envelope ciphering mail on PC, move e-mail program on the PC, the E-mail encryption/decryption program, digital envelope imports program, e-mail program is selected the Outlook Express of Microsoft for use, the E-mail encryption/decryption program is selected the GTPOE safety insert of Ao Lian company for use, digital envelope importing program is an option program, and the annex of use and e-mail program is selected, inserting identical program function (also can be with duplicating, the function of pasting).Zhang San at first opens e-mail program, writes Li Si's addresses of items of mail (li@xyz.com), writes mail header, writes the message body content, if annex is arranged, selects to insert annex.Use the mail original text of writing above the E-mail encryption/decryption program encryption to Li Si then, generate encrypt data, this encrypt data can be used as file and preserves temporarily, also can reside in the internal memory temporarily; Simultaneously, use e-mail program to create an envelope new mail, the addressee of this new mail still is Li Si (li@xyz.com), use digital envelope to import the procedure Selection digital envelope, and as the new text of creating mail, open html file (digital envelope that the user likes) on the network or on this machine such as the browser that can use windows, use the copy function of windows to duplicate this html file, paste the text of creating mail for new; In addition, the encrypt data that generates is encrypted in the front insert the new mail of creating as annex, like this, form the complete digital envelope ciphering mail of an envelope by digital envelope and encrypt data, Zhang San selects to send mail, sends to Li Si.After Li Si gets the mail, see digital envelope earlier, use E-mail encryption/decryption plug-in unit deciphering annex then, recover mail original text (comprising text and/or annex).
Claims (3)
1. the generation of a digital envelope ciphering mail and reading method is characterized in that may further comprise the steps:
(1) on the PC or the webserver, open e-mail program,
(2) editor's mail original text comprises message body and/or annex,
(3) use E-mail encryption/decryption program encryption mail original text, generate encrypt data,
(4) on the PC or the webserver, use data that digital envelope imports one section page marks language format of procedure Selection as digital envelope,
(5) use e-mail program to create an envelope new mail, the addressee of this new mail is identical with the addressee of mail original text,
(6) with the text of above-mentioned digital envelope as new mail, with the annex of above-mentioned encrypt data, generate an envelope digital envelope ciphering mail of forming by digital envelope and encrypt data as new mail,
(7) by the Internet or local area network (LAN) above-mentioned digital envelope ciphering mail is sent to the mail recipient,
(8) mail recipient opens e-mail program on the PC or the webserver, receives above-mentioned digital envelope ciphering mail,
(9) demonstration and reading digital envelope,
(10) use the E-mail encryption/decryption program that privacy enhanced mail is decrypted, recover the mail original text, comprise message body and/or annex,
(11) show also reading mail original text.
2. the generation of a digital envelope ciphering mail as claimed in claim 1 and reading method is characterized in that:
(1) with the digital envelope ciphering mail that generates, as the mail original text,
(2) use E-mail encryption/decryption program encryption mail original text, generate encrypt data,
(3) use e-mail program to create an envelope new mail, the addressee of this new mail is identical with the addressee of mail original text,
(4) use data that digital envelope imports one section page marks language format of procedure Selection as digital envelope,
(5) digital envelope that step (4) is selected is as the text of the new mail of step (3) establishment, the annex of the new mail that the encrypt data that step (2) is generated is created as step (3), thereby be combined into the two-layer nested digital envelope ciphering mail of an envelope, comprise another digital envelope in the annex of this digital envelope ciphering mail.
3. one kind is used for the generation of digital envelope ciphering mail as claimed in claim 1 or 2 and the digital envelope of reading method, it is characterized in that said digital envelope is the data of one section page marks language format, these data comprise page body and/or plain text literal text and/or simulation postmark, wherein page body comprises picture and/or Flash and/or Streaming Media, and plain text literal text comprises title and/or explanation and/or advertising slogan.
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| CN103248553A (en) * | 2012-02-07 | 2013-08-14 | 腾讯科技（深圳）有限公司 | Mail encryption method, mail decryption method and clients |
| CN104219137A (en) * | 2013-06-05 | 2014-12-17 | 北京国信冠群技术有限公司 | System and method for protecting original text of E-mailer during circulation of E-mail |
| CN105743884A (en) * | 2016-01-22 | 2016-07-06 | 广东信鉴信息科技有限公司 | Mail hiding method and mail hiding system |
| CN108156070A (en) * | 2018-01-09 | 2018-06-12 | 论客科技（广州）有限公司 | Instant communication method, apparatus and system based on mailing system |
| CN109245991A (en) * | 2018-09-06 | 2019-01-18 | 广东安创信息科技开发有限公司 | A kind of generation of SM9 privacy enhanced mail and reading method based on B/S structure |
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| EP1580953B1 (en) * | 2004-03-22 | 2011-02-09 | Research In Motion Limited | System and method for viewing message attachments |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103248553A (en) * | 2012-02-07 | 2013-08-14 | 腾讯科技（深圳）有限公司 | Mail encryption method, mail decryption method and clients |
| CN104219137A (en) * | 2013-06-05 | 2014-12-17 | 北京国信冠群技术有限公司 | System and method for protecting original text of E-mailer during circulation of E-mail |
| CN105743884A (en) * | 2016-01-22 | 2016-07-06 | 广东信鉴信息科技有限公司 | Mail hiding method and mail hiding system |
| CN108156070A (en) * | 2018-01-09 | 2018-06-12 | 论客科技（广州）有限公司 | Instant communication method, apparatus and system based on mailing system |
| CN108156070B (en) * | 2018-01-09 | 2020-07-17 | 论客科技（广州）有限公司 | Instant messaging method, device and system based on mail system |
| CN109245991A (en) * | 2018-09-06 | 2019-01-18 | 广东安创信息科技开发有限公司 | A kind of generation of SM9 privacy enhanced mail and reading method based on B/S structure |
| CN109245991B (en) * | 2018-09-06 | 2021-02-23 | 广东安创信息科技开发有限公司 | SM9 encrypted mail generating and reading method based on B/S structure |
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