Recent research published by the Radicati Group noted that by the end of 2023, the number of daily emails sent and received there not encrypted by an organization and consumers will be more than 333 billion. Up by 52 billion from 2018, this represents a substantial increase. While this number is almost incomprehensible, many of these emails will be sent and received in the public domain and be viewable by anyone who wants to.
Unfortunately, the confidentiality attached to sending secure letters through the mail does not transfer to email messaging. Instead, email users must learn to make efforts to maintain email privacy. According to a news source, a leading telecommunications organization, 92% of malware gets into our computers via email messages. Trustifi’s email security protects users from phishing and other malicious cybercrimes.
Trustifi also has access to unmatched information protection regarding email encryption solutions, including support for S/MIME services, to ensure email privacy.
The Secure/Multipurpose Internet Mail Extension (S/MIME) Protocol
Email messaging started as a simple text-based (ASCI) message transfer system that a small group of researchers used. This group did not need privacy for this messaging system because they would create and send messages between them using their university’s private network. The concept of how to encrypt messages applying protocols like S/MIME services wasn’t even available. However, as email use expanded into the public domain with the popularity of the internet, the email community started to learn about the need to protect their messages most encrypted their message with the tools available.
For example, early internet-based email messages could not send other items, such as images or audio files. This changed with the invention of “multipurpose internet mail extensions,” or MIME. As internet-based email messaging gained popularity in the late 1980s and early 1990s, it became clear that emails were not secure, and S/MIME support became necessary.
Fortunately, email security companies began creating protocols like S/MIME services, which use encryption key technology. S/MIME was developed in 1995 by three MIT graduates who formed the RSA Data Security organization.
While there have been several upgrades since RSA first developed S/MIME, companies like Trustifi rely on the underlying principle of using encryption key technology to maintain email privacy. Once clients learned more about S/MIME, more clients began to use this function to assist with digital signatures and other supported security functions.
Asymmetric Cryptography To Support S/MIME for Digital Signature
The S/MIME protocol uses asymmetric cryptography (Crypto) for signatures. A signature consists of a pair of mathematically connected keys, private and public. The private key cannot be determined using the public key.
Here’s how it works. The person who sends the email uses the public key to encrypt the message. The email recipient then uses the private key to decrypt the message. This works because only the recipient has the private key. It is the only one to open the lock on the message’s contents. Hence, S/MIME became a global protocol standard for digital signatures.
E-mails protected by S/MIME certificates and signatures provide end-to-end encryption to protect any sensitive information exchanged.
What is the Role of S/MIME Digitally Signed Certificate?
S/MIME uses digital certificates. These certificates help document with a public key and owner details like name, email, and organization. Certificate authorities (CAs), trusted third parties, verify the owner’s identity and the validity of public keys by issuing these certificates.
You signed a certificate that serves as a digital signature on emails. This adds security by confirming that the content hasn’t changed during transmission. A CA, not a hacker, verifies the certificate. It acts as your unique stamp, showing that the content hasn’t changed during transmission; any alterations invalidate the signature.
Enhanced Secure Email Security Leveraging Certificates
Using encryption key technology, Trustifi offers email consumers security functionality and other information regarding its features based on the original S/MIME protocol and certificates. This solution includes non-repudiation of origin, message integrity, authentication, email privacy, signed receipts, security labels, secure mailing lists, and an extended method of identifying the signer’s certificate(s).
Because S/MIME can be added to email clients for digital signatures, it does not require special email servers.
Non-Repudiation of Origin
In general, non-repudiation of origin means an email recipient cannot question the validity of the sent email. This also provides the recipient with proof of where the email came from. Non-repudiation of origin is crucial for protecting recipients against spoofing and phishing. One of the main benefits of Trustifi’s email encryption solution is that it uses S/MIME with certificates.
Secure Message Integrity and Validation
Another key benefit of Trustifi’s email S/MIME feature with certificates and email encryption solutions together deliver message validation. This indicator means that when a user sends an email, the encrypt function ensures the message is not tampered with—email messages are maintained while the message is in transit and through email servers.
Digital Certificate and Authentication
Digital message authentication is closely related to non-repudiation of origin and message validation within S/MIME. This function means all messages are what the sender says they are. Like message integrity, authentication means the email message remains encrypted until unlocked with the recipient’s private key. S/MIME certificates are critical in validating the sender of the email message and ensuring its contents have not been tampered with.
Email Privacy
A key feature of Trustifi’s email messages requiring encryption and S/MIME certificate support is necessary for email privacy. This function is an absolute must in today’s volatile electronic information world. Privacy must be maintained from a private user sending a secret password to a friend to a business colleague sending sensitive data to another business colleague. The basic structure behind the S/MIME certificate guarantees email privacy.
Signed Receipts and Security Labels
Two other features of the S/MIME certificate are signed receipts and security labels. A signed receipt assures that the email recipient received the unaltered message. The function helps the sender know when to open the message. The recipient will need authorization to open the email containing a security label.t
Conclusion
Since it was first developed in 1995, the S/MIME email security protocols have been substantially upgraded. S/MIME and everything that came after it relies on asymmetric crypto, issued a certificate from a proper CA authority, a public and private mathematically related pair of encryption keys. These keys give email senders and recipients unbreakable email security and privacy. Using asymmetric crypto ensures there will be no data breaches. In the standard-laden regulatory environment, privacy is essential. Avoid costly compliance-related fines by choosing Trustifi’s end-to-end email encryption solutions supporting S/MIME.
Why Trustifi For Email Encryption and S/MIME?
Trustifi’s NSA-grade email encryption services with S/MIME support use asymmetric crypto to give consumers unparalleled email security. From the corporate enterprise to the small business world, Trustifi’s solutions are scalable and secure, and the centralized management console handles all features. Trustifi’s email security solutions will guard against spoofing and phishing attacks if you run a small business.
Moreover, Trustifi’s email encryption and adoption of S/MIME are flexible. Trustifi offers one-click encryption and decryption within the centralized management console, giving small business email consumers peace of mind that sensitive data is secure.
Because the underlying email protocols, including S/MIME, are added to existing email servers, investing in an expensive IT management platform for this security feature is unnecessary. Trustifi also allowlisting and blocklisting options.
