Digital Signature tools
Digital Signature :
An encrypted message digest which is appended to a plaintext or encrypted message to verify the identity of the sender. The signature is encrypted with the user's private key and can only be decrypted with the corresponding public key. The same key pairs may be used for signature and encryption purposes but separate key pairs for each purpose are usually recommended.
From : www.efa.org.au/Issues/Crypto/crypto5.html
Comodo Email Certificate
Comodo offers fully S/MIME compliant Secure Email Certificates FREE for personal use!
Free Secure Email Certificates allow you to encrypt and digitally sign email and attachments keeping them secure and confidential:
- Encrypt your emails to ensure that the message and attachments may only be read by the intended recipients
- Digitally Sign your emails to prove that the message and attachments really came from you and not someone masquerading as you
- Digitally Sign your emails to ensure that the message and attachments cannot be tampered with en route via the Internet without the recipient being alerted to the tampering
Key Features:
- Free! Other Certification Authorities sell Digital Certificates for email for $19.95! There is no cost for a Secure Email Certificate. Free for personal use only - commercial users contact us for details on solutions for your business
- Fully trusted by 99% of email clients
- Encrypt and Sign emails from your current email client software - Microsoft® Outlook Express, Microsoft® Outlook®, Netscape Messenger, or any other S/MIME compliant software
- Binds your email identity (email address) to a cryptographic key used to sign or to encrypt your email
Use your Microsoft Outlook / Microsoft Outlook Express to:
- Keep your email confidential
- Make sure the recipient knows the email is really from you and not someone masquerading as you
- Ensure your email is not tampered with en route to the recipient
The Secure Email Certificate allows you to use the "digitally sign" and "encrypt" features in your Microsoft Outlook / Microsoft Outlook Express
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