S/MIME

Did you know even the “From:” field in an email, so the sender email address itself, can be compromised in standard email?

Regular email has no class protection.

Class 1 protection declares that the sender is the owner of the “From:” email address in the sense that the sender can receive email sent to that address, and so merely proves that an email received really did come from the “From:” address given.

Class 2 protection provides a more in-depth identity verification process, and this involves making inquiries about the would-be certificate holder.

S/MIME

S/MIME provides the following cryptographic security services for electronic messaging applications:

• Authentication
• Message integrity
• Non-Repudiation of origin (using digital signatures)
• Privacy
• Data security (using encryption)