Digital Certificate Email usage


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Signing an e-mail message means that you attach your Digital Certificate to it so that the recipient knows it came from you and was not tampered with en-route to their inbox

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Digital Certificate Email usage

  1. 1. Digital Signature Usage Can I use one digital certificate for multiple e-mail addresses? No, you cannot. A digital certificate e-mail address combination is unique. What is the scope of using digital signatures for e-tendering systems? Digital signatures for e-tendering are allowed, though with limited scope.The following transactions/instruments are not recognized as per the IT Act 2000: • • • • • • Negotiable Instrument as defined in section 13 of 26 of 1881.The Negotiable Instrument Act,1881. A Power-of-Attorney. Succession Act/Will. Trust Transfer of Immovable property Trust Can digital signatures be used in wireless networks? Yes, digital signatures can be employed in wireless networks Digital Signature Usage EMAIL SECTION: What is the difference between signing and encrypting an e-mail? Signing an e-mail message means that you attach your Digital Certificate to it so that the recipient knows it came from you and was not tampered with en-route to their inbox. Signing authenticates a message, but it does not provide protection against third party monitoring.Encrypting a message means scrambling it in such a way that only the designated recipients can unscramble it. This safeguards messages against monitoring or interception. In order to send a signed message, you must have a Digital Certificate. Since message encryption is done using specific keys available in the certificate, you cannot encrypt a message unless you possess the recipient's Digital Certificate. Can I send a secure e-mail to someone who does not have Digital Certificate? You can digitally sign any e-mail as long as the recipient has an e-mail application, which supports S/MIME. However, you cannot encrypt a message, unless you have the recipient's Digital Certificate. How do I know if the e-mail I have received is digitally signed or encrypted? Microsoft Internet Explorer Users: Signed messages will be shown in the inbox (or any other folder) with a red ribbon on the envelope icon. Encrypted messages will show a padlock on the envelope icon. Netscape Communicator Users: Any signed e-mail you receive will have a prominent icon in the upper-right corner of the message saying "signed" or "encrypted" or both. If you want more information about the security of a message, click on the Security button (padlock icon) above the message. Where can I use digital certificates? You can use Digital Certificates for the following: • • • • How For secure email and web-based transactions, or to identify other participants of web-based transactions. To prove ownership of a domain name and establish SSL / TLS encrypted secured sessions between your website and the user for web based transactions. As a developer, for proving authorship of a code and retaining integrity of the distributed software programs. For signing web forms, e-tendering documents, filing income tax returns, to access membership-based websites automatically without entering a user name and password etc. does a Digital Signature work? A digital certificate explicitly associates the identity of an individual/device with a pair of electronic keys - public and private keys - and this association is endorsed by the CA. The certificate contains information about a user's identity (for example, their name, email address, the date the certificate was issued and the name of the Certifying Authority that issued it