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rishi_somshetti
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Posted: 16 May 2007 at 11:55pm | IP Logged Quote rishi_somshetti

May 17, 2007

Can I just encrypt & sign a file and then simply attach it to the mail.

Rishi
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Andrew
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Posted: 17 May 2007 at 3:28am | IP Logged Quote Andrew

SMIME standard requires entire e-mail message to be signed or/and encrypted. So it's not possible to sign/encrypt just a file and attach it to a message, i.e. only e-mail messages can be signed/encrypted. If you have a signed/encrypted message saved as an .eml file, you may attach it to another e-mail message as attachment.


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Andrew
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rishi_somshetti
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Posted: 17 May 2007 at 1:41pm | IP Logged Quote rishi_somshetti

May 17, 2007

It would be great if you could provide signfile using attached & detached signature. It will really add lot of value.

In S/MIME both sender and recepient need to posess a certificate. Many end user client who use free servies like yahoo, gmail may not be willing to buy a certificate.

So we have decided to sign the file and encrypt it using ZIP encryption.

Other compoents like ASPEncrypt does have this.

rishi
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Alex
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Posted: 17 May 2007 at 1:50pm | IP Logged Quote Alex

Yes, I understand. But they are different products, encryption of arbitrary data is somewhat different from email components and S/MIME. Maybe we'll develop such a product someday, but it won't be a mail component. To the moment, our focus is email oriented software.

Regards,
Alex
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