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In cryptography, the OpenPGP card [1] is an ISO/IEC 7816-4, -8 compatible smart card [2] that is integrated with many OpenPGP functions. Using this smart card, various cryptographic tasks (encryption, decryption, digital signing/verification, authentication etc.) can be performed. It allows secure storage of secret key material; all versions of ...
GPG Suite [27] installs all related OpenPGP applications (GPG Keychain), plugins and dependencies (MacGPG), along with GPG Services (integration into macOS Services menu) to use GnuPG based encryption. Instant messaging applications such as Psi and Fire can automatically secure messages when GnuPG is installed and configured.
OpenPGP can also be used to secure sensitive files when they are stored in vulnerable places like mobile devices or in the cloud. [ 53 ] In late 2023, a schism occurred in the OpenPGP world: IETF's OpenPGP working group decided to choose a "crypto-refresh" update strategy for the RFC 4880 specification, rather than a more gradual "4880bis" path ...
All OpenPGP-compliant implementations include a certificate vetting scheme to assist with this; its operation has been termed a web of trust. OpenPGP certificates (which include one or more public keys along with owner information) can be digitally signed by other users who, by that act, endorse the association of that public key with the person or entity listed in the certificate.
A separate key server, known as the PGP Certificate Server, was developed by PGP, Inc. and was used as the software (through version 2.5.x for the server) for the default key server in PGP through version 8.x (for the client software), keyserver.pgp.com. Network Associates was granted a patent co-authored by Jon Callas (United States Patent 6336186) [3] on the key server concept.
In public-key cryptography, a public key fingerprint is a short sequence of bytes used to identify a longer public key.Fingerprints are created by applying a cryptographic hash function to a public key.
GPG Mail is a commercial extension for Apple Mail which comes as part of GPG Suite, a software collection that provides easy access to a collection of tools designed to secure your communications and encrypt files. GPG Mail provides public key email encryption and signing.
An unpredictable (typically large and random) number is used to begin generation of an acceptable pair of keys suitable for use by an asymmetric key algorithm. In this example the message is digitally signed with Alice's private key, but the message itself is not encrypted.