J

The JSON format for vCard, defined in RFC 7095. It carries the same data as vCard but written as JSON arrays.

Plain language The JSON format for vCard, carrying the same data but written as JSON arrays.

Used in RFC 7095 RFC 8688 RFC 9083 RFC 9536 RFC 9537 RFC 9553 RFC 9555 RFC 9795 RFC 9796

An XMPP address of the form localpart@domainpart/resourcepart, for example juliet@im.example.com/balcony. Without the resource it is a bare JID. The format is defined in RFC 6122.

Plain language A Jabber ID for XMPP, in the form localpart@domainpart/resourcepart.

Used in RFC 3920 RFC 3921 RFC 3922 RFC 3923 RFC 5122 RFC 6120 RFC 6121 RFC 7247 RFC 7572 RFC 7573 RFC 7622 RFC 7702

Variation in packet arrival delay. RTCP receiver reports include an estimate of interarrival jitter.

Plain language Variation in packet arrival delay, which affects real-time communications.

Used in RFC 1193 RFC 1257 RFC 1305 RFC 1589 RFC 1667 RFC 1819 RFC 1889 RFC 1890 RFC 2212 RFC 2215 RFC 2250 RFC 2381 RFC 2679 RFC 2681 RFC 2724 RFC 2736 RFC 3095 RFC 3246 RFC 3247 RFC 3366 RFC 3393 RFC 3432 RFC 3550 RFC 3611 and 123 more

A holding area where arriving packets wait briefly before play out, so that uneven arrival times do not disturb a steady stream.

Plain language A holding area where arriving packets wait briefly before playback, smoothing uneven arrival times.

Used in RFC 3611 RFC 3640 RFC 4553 RFC 4842 RFC 5086 RFC 5087 RFC 5604 RFC 6184 RFC 7002 RFC 7003 RFC 7875

The JSON Meta Application Protocol, a generic protocol for synchronising data such as mail, calendars or contacts between a client and a server.

Plain language The JSON Meta Application Protocol for synchronizing mail, calendars, or contacts between client and server.

Used in RFC 8621 RFC 8887 RFC 9007 RFC 9404 RFC 9425 RFC 9610 RFC 9661

An optional setting a client supplies when creating a print job, such as the number of copies, sides or media. A Printer that supports one also publishes a matching default and supported-values attribute.

Plain language An optional print job setting, such as number of copies or media type.

Used in RFC 2911 RFC 3995 RFC 8011

A reputation attack where an attacker sends unsolicited bulk email on behalf of a target domain or user to harm their reputation and trust.

Plain language A reputation attack where unsolicited bulk email is sent on behalf of a target to harm their reputation.

Used in RFC 4686 RFC 5429

A JSON data model and format for contact cards, defined in RFC 9553 as an alternative to vCard and jCard.

Plain language A JSON data model for contact cards, defined as an alternative to vCard.

Used in RFC 9553 RFC 9554 RFC 9555

JavaScript Object Notation: a text format for structured data built from objects, arrays, strings, numbers, true, false and null.

Plain language JavaScript Object Notation, a text format for structured data.

Used in RFC 4627 RFC 6208 RFC 6415 RFC 6839 RFC 6901 RFC 6902 RFC 7033 RFC 7047 RFC 7049 RFC 7071 RFC 7072 RFC 7095 RFC 7158 RFC 7159 RFC 7165 RFC 7265 RFC 7285 RFC 7373 RFC 7386 RFC 7396 RFC 7464 RFC 7480 RFC 7483 RFC 7484 and 150 more

A string syntax, defined in RFC 6901, that names one specific part of a JSON document using slash-separated keys and array indices.

Plain language A string syntax that names one specific part of a JSON document using slash-separated keys.

Used in RFC 6901 RFC 6902 RFC 7159 RFC 7396 RFC 8927 RFC 9553 RFC 9555 RFC 9795 RFC 9880

A JSON-based format for encrypted content, defined in RFC 7516. A JWT can be wrapped in a JWE to keep its claims secret.

Plain language JSON Web Encryption, a JSON-based format for encrypted content.

Used in RFC 7516 RFC 7800 RFC 8037 RFC 8417 RFC 8725

A JSON data structure that represents a cryptographic key, with fields such as the key type and the key material.

Plain language A JSON data structure representing a cryptographic key with its properties.

Used in RFC 7516 RFC 7517 RFC 7638 RFC 7800 RFC 8037 RFC 8725 RFC 9964

A query language for pointing at values inside a JSON document, for example a path that starts at the root and selects an entity's handle. It is defined in RFC 9535.

Plain language A query language for pointing at values inside a JSON document.

Used in RFC 7159 RFC 9536 RFC 9537

An IPv6 packet whose payload is longer than 65,535 octets. It uses the Jumbo Payload option to carry the length.

Plain language An IPv6 packet with a payload longer than 65,535 octets using the Jumbo Payload option.

Used in RFC 2147 RFC 2675

A point in a fileset where another fileset can be attached. A file server that reaches one must be able to find the FSN of the target fileset.

Plain language A point in a fileset where another fileset can be attached.

Used in RFC 5716 RFC 7532 RFC 7533

A URL-safe representation of a hash computed over a JSON Web Key. It gives a compact identifier for a key and is defined in RFC 7638.

Plain language A URL-safe hash representation of a JSON Web Key serving as a compact key identifier.

Used in RFC 7638 RFC 8037 RFC 9278 RFC 9449

A standard format for a JSON message together with a digital signature. ACME requests are signed this way with the account key.

Plain language A standard format for a JSON message together with a digital signature.

Used in RFC 7165 RFC 7515 RFC 7516 RFC 7517 RFC 7518 RFC 7519 RFC 7520 RFC 7591 RFC 7638 RFC 7797 RFC 8037 RFC 8055 RFC 8225 RFC 8292 RFC 8392 RFC 8417 RFC 8555 RFC 8688 RFC 8725 RFC 8812 RFC 8935 RFC 9060 RFC 9068 RFC 9101 and 14 more

A compact, URL-safe string that carries a set of claims as a JSON object, protected by a signature or encryption. Written as base64url parts joined by dots.

Plain language A compact, URL-safe string carrying claims protected by a signature or encryption.

Used in RFC 7165 RFC 7515 RFC 7517 RFC 7519 RFC 7520 RFC 7523 RFC 7591 RFC 7662 RFC 7797 RFC 7800 RFC 8176 RFC 8225 RFC 8226 RFC 8292 RFC 8392 RFC 8414 RFC 8417 RFC 8443 RFC 8485 RFC 8588 RFC 8693 RFC 8705 RFC 8707 RFC 8725 and 39 more