"S/MIME" stands for "Secure/Multipurpose Internet Mail Extensions" and is a security standard for encrypting and digitally signing emails. It enables secure transmission of emails over the Internet, protecting them from unauthorized access and tampering.
Typical functions of software in the "S/MIME" domain include:
Email encryption: The software encrypts the content of emails to ensure that only authorized recipients can read them. This is done using asymmetric encryption technology, where the recipient's public key is used.
Digital signing: It allows for digitally signing emails to confirm the sender's authenticity and ensure that the message has not been altered during transmission. This is done using the sender's private key.
Certificate management: The software supports the management of digital certificates required for email encryption and signing. This includes importing, exporting, and updating certificates, as well as verifying their validity.
Integration with email clients: It seamlessly integrates with common email clients such as Microsoft Outlook, Mozilla Thunderbird, and Apple Mail to facilitate easy use of S/MIME features.
Key management: The software provides functions for managing public and private keys, including generating new key pairs, exporting keys, and backing up key material.
Authentication and security: It ensures secure authentication of communication partners and protects against spoofing and man-in-the-middle attacks through the use of digital certificates and cryptographic mechanisms.