E-Mail Security with S/MIME
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منابع مشابه
Understanding the limitations of S/MIME digital signatures for e-mails: A GUI based approach
S/MIME (Secure/Multipurpose Internet Mail Extensions) is a well-known standard for secure e-mail exchange. S/MIME builds its identity management on e-mail addresses, rather than real names. This fact may sometimes cause sending a signed e-mail with a bogus name on it. Moreover, header information of a signed e-mail message, such as subject and name, can be altered without affecting the verifiab...
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S/MIME (Secure/Multipurpose Internet Mail Extensions) provides a consistent way to send and receive secure MIME data. Based on the popular Internet MIME standard, S/MIME provides the following cryptographic security services for electronic messaging applications: authentication, message integrity and non-repudiation of origin (using digital signatures) and privacy and data security (using encry...
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Several security protocols (PGP, PEM, MOSS, S/MIME, PKCS#7, CMS, etc.) have been developed to provide confidentiality and authentication of electronic mail. These protocols are widely used and trusted for private communication over the Internet. We point out a potentially serious security hole in these protocols: any encrypted message can be decrypted using a one-message, adaptive chosen-cipher...
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This paper deals with practicability issues of encrypted e-mails. A quick survey on the status quo indicates that popular e-mail clients lack substantial practicability qualities, for example searching in encrypted e-mails. Other approaches such as De-Mail provide solutions, but offer transport encryption only. We present and discuss a number of improvements to the practicability of e-mail encr...
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An Internet e-mail message can be intercepted on its way through the messaging infrastructure. In this paper we make a preliminary investigation of how confidential information could be transported using Internet e-mail and encryption. We present the application-oriented approaches that have been taken by different interests, namely PGP, PEM, MOSS, and S/MIME. We discuss the problems and tentat...
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