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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 ...
Public key certificate. In cryptography, a public key certificate, also known as a digital certificate or identity certificate, is an electronic document used to prove the validity of a public key. [1] [2] The certificate includes the public key and information about it, information about the identity of its owner (called the subject), and the ...
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 ...
The architecture of CMS is built around certificate-based key management, such as the profile defined by the PKIX working group. CMS is used as the key cryptographic component of many other cryptographic standards, such as S/MIME , PKCS #12 and the RFC 3161 digital timestamping protocol.
US Navy Identification Card from the 1960s, as displayed in Pyongyang,North Korea. A United States Uniformed Services Privilege and Identification Card (also known as U.S. military ID, Geneva Conventions Identification Card, or less commonly abbreviated USPIC) is an identity document issued by the United States Department of Defense to identify ...
The S/MIME certificates are published to the GAL; whereas, the HTTP certificates are kept in the machine store for mainframe/web access. The user(s) can send encrypted mail to anyone within the organization, as long as the target user's Digital Signature is listed (and valid) within the GAL.
Some certificate authority – usually a purpose-built program running on a server computer – vouches for the identities assigned to specific private keys by producing a digital certificate. Public key digital certificates are typically valid for several years at a time, so the associated private keys must be held securely over that time.
Marcel Marceau ( French pronunciation: [maʁsɛl maʁso]; born Marcel Mangel; 22 March 1923 – 22 September 2007) was a French mime artist and actor most famous for his stage persona, " Bip the Clown ". He referred to mime as the "art of silence", performing professionally worldwide for more than 60 years.
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