Data encapsulations

Description Glossary RFCs Publications Obsolete RFCs

Compression algorithms Character sets Encryption algorithms Hashing algorithms

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Description:

MIME subtypes:

3

3DES.
Encryption. Block cipher algorithm.


A

ABNF, Augmented BNF.
(RFC 5234) Internet technical specifications often need to define a formal syntax. Over the years, a modified version of Backus-Naur Form (BNF), called Augmented BNF (ABNF), has been popular among many Internet specifications. The differences between standard BNF and ABNF involve naming rules, repetition, alternatives, order- independence, and value ranges.

AES, Advanced Encryption Standard.
Encryption. Block cipher algorithm.

ARIA.
Encryption. Block cipher algorithm.

ASN.1, Abstract Syntax Notation One.
Data encapsulation.

ASN.X, Abstract Syntax Notation X.
Data encapsulation.

Atom.
File format. An XML based Web content and metadata syndication format.


B

Blowfish.
Encryption. Block cipher algorithm.


C

Camellia.
Encryption. Block cipher algorithm.

CAST.
Encryption. Symmetric block cipher algorithm.

CellML Umbrella.
File format. A markup meta-language for the interchange of mathematical models.

CLEFIA.
Encryption. Block cipher algorithm. A 128 bit blockcipher with its key length being 128, 192 and 256 bits. It is compatible with the interface of the Advanced Encryption Standard (AES).

CMAC.
Encryption. Block cipher algorithm.

CMML, Continuous Media Markup Language.

CMS, Cryptographic Message Syntax.
(RFC 3058) Derived from PKCS#7, the framework for the implementation of cryptographic functions in S/MIME. It specifies data formats and encryption processes without naming the cryptographic algorithms. Each algorithm which is used for encryption purposes is specified by a unique algorithm identifier.

Common Policy.

[RFC 4745] Common Policy: A Document Format for Expressing Privacy Preferences.

CPIM, Common Profile for Instant Messaging.

CPL, Call Processing Language.

Crypton.


D

DEAL.

DEFLATE.
Lossless compression file format.

DES, Data Encryption Standard.
Encryption. Block cipher algorithm.

DSA, Digital Signature Algorithm.


E

EBCDIC, Extended BCD Interchange Code.
Charset.

ECDH, Elliptic Curve Diffie Hellman.
Key agreement algorithm. Defined in X9.63.

ECDSA, Elliptic Curve Digital Signature Algorithm.
Defined in X9.62.

ecmascript.


F

FEC, Forward Error Correction.
(RFC 2354) This is the means by which repair data is added to a media stream, such that packet loss can be repaired by the receiver of that stream with no further reference to the sender. There are two classes of repair data which may be added to a stream: those which are independent of the contents of the stream, and those which use knowledge of the stream to improve the repair process.

FITS, Flexible Image Transport System.
File format. This format has been in use since 1979 and almost all data from astronomical observations are interchanged by using FITS. FITS was designed in order to facilitate the interchange of astronomical image data between observatories. FITS provides a means of transporting arrays and tables of data and keyword/value pairs of metadata. FITS is defined by standards documents that are approved by the IAU, International Astronomical Union and published in refereed journals.


G

G.711.1.
Audio codec. A G.711 embedded wideband speech and audio coding algorithm operating at 64, 80, and 96 kbps. At 64 kbps, G.711.1 is fully interoperable with G.711. Hence, an efficient deployment in existing G.711-based Voice over IP (VoIP) infrastructures is foreseen. The codec operates on 5-ms frames, and the default sampling rate is 16 kHz. Input and output at 8 kHz are also supported for narrowband modes.

[RFC 5391] RTP Payload Format for ITU-T Recommendation G.711.1.

G.719.
Audio codec. The ITU-T G.719 full-band codec is a transform coder based on Modulated Lapped Transform (MLT). G.719 is a low-complexity full-bandwidth codec for conversational speech and audio coding. The encoder input and decoder output are sampled at 48 kHz. The codec enables full-bandwidth from 20 Hz to 20 kHz, encoding of speech, music, and general audio content at rates from 32 kbit/s up to 128 kbit/s. The codec operates on 20-ms frames and has an algorithmic delay of 40 ms.

G.729.1.
Audio codec. ITU-T G.729.1 is an 8-32 kbps scalable wideband (50-7000 Hz) speech and audio coding algorithm interoperable with G.729, G.729 Annex A, and G.729 Annex B. It provides a standardized solution for packetized voice applications that allows a smooth transition from narrowband to wideband telephony.

GMAC, Galois Message Authentication Code.
Block cipher mode.

[RFC 4543] The Use of Galois Message Authentication Code (GMAC) in IPsec ESP and AH.

GZIP.
Lossless compression file format.


H

H.264
Video codec.

HMAC, Keyed-Hashing for Message Authentication.
Hashing algorithm.

HOTP, HMAC-Based One-Time Password.
One time password algorithm.

[RFC 4226] HOTP: An HMAC-Based One-Time Password Algorithm.

HTML, Hypertext Markup Language.
File format.


I

iCalendar, Internet Calendaring and Scheduling Core Object Specification.
Data encapsulation.

IDEA, International Data Encryption Algorithm.
Block cipher algorithm.

IDMEF, Intrusion Detection Message Exchange Format.
File format.

IODEF, Incident Object Description Exchange Format.


J

javascript.
Scripting language.

JSON, JavaScript Object Notation.
File format.

JPEG, Joint Photographic Experts Group.
Image data compression and file format.

JPEG 2000.
Image data compression and file format.


K

KCipher-2.

KEA, Key Exchange Algorithm.

[RFC 2773] Encryption using KEA and SKIPJACK.

[RFC 2876] Use of the KEA and SKIPJACK Algorithms in CMS.


L

LDIF, LDAP Data Interchange Format.
File format.


M

Mars.
Block cipher algorithm.

MD2, Message-Digest Algorithm.
Hashing algorithm.

MD4, Message-Digest Algorithm.
Hashing algorithm.

MD5, Message-Digest Algorithm.
Hashing algorithm.

MIME, Multipurpose Internet Mail Extensions.
Data encapsulation.

MISTY1.
Block cipher algorithm.

MPEG, Moving Picture Experts Group.
Digital video compression and file format.

MSML, Media Server Markup Language.
File format.

MXF, Material Exchange Format.
File format.


N

NewsML.
An XML format for packaging multimedia news resources. It has been created under the auspices of the International Press Telecommunications Council (IPTC), and version 1.0 was approved by the IPTC on 6 October 2000.


O

ODA, Office Document Architecture, ISO 8613.

Ogg.
Media stream encapsulation format.

OPF, Open eBook Publication Structure (OEBPS) Package File.

OTP, One Time Password.

[RFC 2289] A One-Time Password System.

[RFC 1938] A One-Time Password System.


P

PDF, Portable Document Format.
File format.

PEM, Privacy Enhanced Mail.

PFL, Procedural Footnote Language.

PGP, Pretty Good Privacy.

PIDF, Presence Information Data Format.
File format.

PKCS, Public-Key Cryptography Standards.

PJL, Printer Job Language.
Developed by Hewlett-Packard to provide job control information to the printer and status information to applications.

PNG, Portable Network Graphics.
Image file format.

Postscript.
Page description language.


Q

QCP.
File format. Used for storing QCELP 13K, EVRC (Enhanced Variable Rate Coder) and SMV (Selectable Mode Vocoders) data.


R

Rabbit.
Stream cipher algorithm.

Rapicom 450.
Facsimile file format.

RC2.
Block cipher algorithm.

RC4.
Stream cipher algorithm. A proprietary encryption algorithm available under license from RSA Data Security Inc.

RC5.
Block cipher algorithm.

RC6.

RDF, Resource Description Framework.
File format.

[RFC 3870] application/rdf+xml Media Type Registration.

Rijndael.
Symmetric block cipher algorithm.

RIPE-181.
File format.

RIPEMD-128.
Hashing algorithm.

RIPEMD-160.
Hashing algorithm.

RPSL, Routing Policy Specification Language.
File format.

RSA.


S

S/KEY.
IETF working group otp.

S/MIME, Secure/Multipurpose Internet Mail Extensions.
Data encapsulation.

SAFER.

SAML, Security Assertion Markup Language.
File format.

SBML, Systems Biology Markup Language.
File format.

SDP, Session Description Protocol.
SDP is intended to be used for describing multimedia sessions for the purposes of session announcement, session invitation, and other forms of multimedia session initiation.

SDXF, Structured Data Exchange Format.

SEED.
Block cipher algorithm.

Serpent.

SGML, Standard Generalized Markup Language.

SHA, Secure Hash Algorithm.
Hashing algorithm.

SHF, S Hexdump Format.
File format.

Sieve.
Sieve is a language for filtering e-mail messages at the time of final delivery. It is designed to be implementable on either a mail client or mail server. It is meant to be extensible, simple, and independent of access protocol, mail architecture, and operating system. It is suitable for running on a mail server where users may not be allowed to execute arbitrary programs, such as on black box IMAP servers, as it has no variables, loops, nor the ability to shell out to external programs.

SKIPJACK.
Block cipher algorithm.

[RFC 2773] Encryption using KEA and SKIPJACK.

[RFC 2876] Use of the KEA and SKIPJACK Algorithms in CMS.

SMIL, Synchronized Multimedia Integration Language.
File format.

Snoop.
File format.


T

TIFF, Tag Image File Format.
Image file format.

Twofish.
Block cipher algorithm.


V

VCDIFF.
Compression file format.

Vorbis.
Audio codec.
(RFC 5215) Vorbis is a general purpose perceptual audio codec intended to allow maximum encoder flexibility, thus allowing it to scale competitively over an exceptionally wide range of bit rates. At the high quality/ bitrate end of the scale (CD or DAT rate stereo, 16/24 bits), it is in the same league as MPEG-4 AAC. Vorbis is also intended for lower and higher sample rates (from 8kHz telephony to 192kHz digital masters) and a range of channel representations (monaural, polyphonic, stereo, quadraphonic, 5.1, ambisonic, or up to 255 discrete channels). Vorbis encoded audio is generally encapsulated within an Ogg format bitstream, which provides framing and synchronization.

VPIM, Voice Profile for Internet Mail.


W

W7.
Stream cipher algorithm.


X

X.509.

XDR, External Data Representation.

XML, Extensible Markup Language.
File format.


Y

YANG.
XML file format. YANG is a data modeling language used to model configuration and state data manipulated by the NETCONF protocol.


Z

ZLIB.
Lossless compression file format.


RFCs:

[RFC 3548] The Base16, Base32, and Base64 Data Encodings.


Publications:


Obsolete RFCs:


Description Glossary RFCs Publications Obsolete RFCs