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  2. S/MIME - Wikipedia

    en.wikipedia.org/wiki/S/MIME

    S/MIME. S/MIME ( Secure/Multipurpose Internet Mail Extensions) is a standard for public-key encryption and signing of MIME data. S/MIME is on an IETF standards track and defined in a number of documents, most importantly RFC 8551. It was originally developed by RSA Data Security, and the original specification used the IETF MIME specification ...

  3. Comparison of email clients - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_email_clients

    Internet Promotion Agency S.A. Windows, Android: Proprietary: GUI Eudora OSE: Qualcomm: Windows, macOS: Open source GUI Evolution: The GNOME Project: Unix-like: LGPL-2.1-only or LGPL-3.0-only: GUI FirstClass: Open Text Proprietary: GUI Forté Agent: Mark Sidell Windows Proprietary: GUI Geary: The GNOME Project (formerly Yorba Foundation) Unix ...

  4. Certificate authority - Wikipedia

    en.wikipedia.org/wiki/Certificate_authority

    Certificate authority. In cryptography, a certificate authority or certification authority ( CA) is an entity that stores, signs, and issues digital certificates. A digital certificate certifies the ownership of a public key by the named subject of the certificate. This allows others (relying parties) to rely upon signatures or on assertions ...

  5. Email encryption - Wikipedia

    en.wikipedia.org/wiki/Email_encryption

    Email encryption. Email encryption is encryption of email messages to protect the content from being read by entities other than the intended recipients. Email encryption may also include authentication . Email is prone to the disclosure of information. Most emails are encrypted during transmission, but they are stored in clear text, making ...

  6. Public key infrastructure - Wikipedia

    en.wikipedia.org/wiki/Public_key_infrastructure

    A public key infrastructure ( PKI) is a set of roles, policies, hardware, software and procedures needed to create, manage, distribute, use, store and revoke digital certificates and manage public-key encryption. The purpose of a PKI is to facilitate the secure electronic transfer of information for a range of network activities such as e ...

  7. Pretty Good Privacy - Wikipedia

    en.wikipedia.org/wiki/Pretty_Good_Privacy

    The web of trust mechanism has advantages over a centrally managed public key infrastructure scheme such as that used by S/MIME but has not been universally used. Users have to be willing to accept certificates and check their validity manually or have to simply accept them. No satisfactory solution has been found for the underlying problem.

  8. IdenTrust - Wikipedia

    en.wikipedia.org/wiki/IdenTrust

    IdenTrust. IdenTrust, part of HID Global and headquartered in Salt Lake City, Utah, is a public key certificate authority that provides digital certificates to financial institutions, healthcare providers, government agencies and enterprises. [1] As a certificate authority (CA), IdenTrust provides public key infrastructure (PKI) and validation ...

  9. Secure messaging - Wikipedia

    en.wikipedia.org/wiki/Secure_Messaging

    Secure messaging relies on a web of trust. This method synthesizes the authentication approach of web of trust, known from PGP, with the advantages of hierarchical structures, known from centralized PKI systems. [1] Those combined with certificates provide a high quality of electronic identities. This approach focuses on the user and allows for ...

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