A Realization Method of Secure E-mail Based on Digital Envelope
A digital envelope and e-mail technology, applied in the field of information security, to achieve good security, convenient management, and ensure security
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[0050] The present invention will be further described below in conjunction with embodiment.
[0051] In the realization method of the secure e-mail based on the digital envelope in the present embodiment, the digital envelope includes: ciphertext data, user key information block, hidden user key information block, data recovery information block, encryption and decryption information block and other information piece.
[0052] The operation steps of the realization method of the secure e-mail based on the digital envelope include: the process of the sender encrypting the e-mail, the process of the recipient not losing the session key keeping the e-mail confidential, which is further divided into the plain receiving without losing the session key The process by which a person keeps e-mail confidential, the process by which a copyist who loses a session key keeps an e-mail confidential, and the process by which a recipient who loses a session key keeps an e-mail confidential. ...
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