Subject: Creating a signed mail message
Date: 2010-03-10 10:03:51
From: mstrasik 
Source: creating-signed-mail-message
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I have problem to sign message and validate signature.
Used certificate has in signature algorithm string "sha1RSA".
Using this certificate with methods "Sign" and "Validate" results in cryptographic exception with message "The signer"s signature algorithm is not supported." or "Signature Certificate Validation Status" of "Mail Signature Validition Result" equals "Signature Algorithm Not Supported".
HashAlgorithmType enumeration has only field SHA1.
Is there a way I can use this certificate to sign messages?
I have UltimateMailExpert  installed.

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