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S/MIME VS OpenPGP

Compare S/MIME VS OpenPGP and see what are their differences

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S/MIME logo S/MIME

A standard for public key encryption and signing of MIME data. Defined in few RFCs.

OpenPGP logo OpenPGP

The most widely used email encryption standard. Defined in RFC 4880.
  • S/MIME Landing page
    Landing page //
    2023-01-29
  • OpenPGP Landing page
    Landing page //
    2023-10-22

S/MIME videos

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#54 S/MIME - Secure MIME protocol - Functions, Services |CNS|

More videos:

  • Tutorial - How to Install an S/MIME Certificate With Outlook on Windows 10
  • Tutorial - How to setup G Suite Gmail encryption using S/MIME | Onsite Helper Australia

OpenPGP videos

No OpenPGP videos yet. You could help us improve this page by suggesting one.

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Category Popularity

0-100% (relative to S/MIME and OpenPGP)

S/MIME

OpenPGP

Security & Privacy
25 25%
Security & Privacy
75% 75
Encryption
20 20%
Encryption
80% 80
File Sharing
100 100%
File Sharing
0% 0
Cloud Storage
23 23%
Cloud Storage
77% 77

User comments

Share your experience with using S/MIME and OpenPGP. For example, how are they different and which one is better?
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Social recommendations and mentions

Based on our record, OpenPGP seems to be more popular. It has been mentiond 4 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

S/MIME mentions (0)

We have not tracked any mentions of S/MIME yet. Tracking of S/MIME recommendations started around Mar 2021.

OpenPGP mentions (4)

  • WKD on custom domains
    You're trusting the service (openpgp.org seems to be the only server offering this?) to serve up your correct key. Source: almost 2 years ago
  • Verification Key? OpenPGP and Keys, How to acquire Verification Code
    Hello, I used openpgp.org to create a set of pgp keys, and I tested them out and all is well. I went to a web site and uploaded my pub key fine, but now it asks for a Verification Code/Key? What is that, and how do I get that off my newly created PGP keys? Thanks. Source: over 2 years ago
  • Future of Key-Pools
    Not sure, but it looks like keys.openpgp.org is up. I found a keyserver still running where I could find my public key (this one: http://pgp.mit.edu/) and uploaded it to the openpgp.org one. This seems rather recent; there's a related post on r/GnuPG. Source: almost 3 years ago
  • Keyservers are gone
    Anyways; it looks like openpgp.org is trying to get on the right side of these crowds ... Source: almost 3 years ago

What are some alternatives?

When comparing S/MIME and OpenPGP, you can also consider the following products

GnuPG - GnuPG is a complete and free implementation of the OpenPGP standard as defined by RFC4880 (also known as PGP).

Skizzle Email - Skizzle is the most secure way to share end-to-end encrypted files through email, backed by blockchain

ComplyCube - Verify your customers in under 15 seconds anywhere in the world with a cutting-edge SaaS & API platform for Identity Verification and AML/KYC compliance.

OpenPGP Keyserver - Pool of places to publish and search OpenPGP public keys.

iGPMail - iPGMail: OpenPGP Email security for iPhone and iPad

MIT PGP Public Key Server - The place to publish and search OpenPGP public keys.

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