JSON Web Encryption (JWE) | |
Abbreviation | JWE |
---|---|
Status | Proposed |
Year started | 16 January 2012 |
First published | 16 January 2012 |
Latest version | May 2015 |
Organization | IETF |
Series | JOSE |
Authors |
|
Domain | Encryption, authentication |
Website | datatracker |
JSON Web Encryption (JWE) is an IETF standard providing a standardised syntax for the exchange of encrypted data, based on JSON and Base64. [1] It is defined by RFC 7516. Along with JSON Web Signature (JWS), it is one of the two possible formats of a JWT (JSON Web Token). JWE forms part of the JavaScript Object Signing and Encryption (JOSE) suite of protocols. [2]
In March 2017, a serious flaw was discovered in many popular implementations of JWE, the invalid curve attack. [3]
One implementation of an early (pre-finalised) version of JWE also suffered from Bleichenbacher’s attack. [4]
Pretty Good Privacy (PGP) is an encryption program that provides cryptographic privacy and authentication for data communication. PGP is used for signing, encrypting, and decrypting texts, e-mails, files, directories, and whole disk partitions and to increase the security of e-mail communications. Phil Zimmermann developed PGP in 1991.
Portable Document Format (PDF), standardized as ISO 32000, is a file format developed by Adobe in 1992 to present documents, including text formatting and images, in a manner independent of application software, hardware, and operating systems. Based on the PostScript language, each PDF file encapsulates a complete description of a fixed-layout flat document, including the text, fonts, vector graphics, raster images and other information needed to display it. PDF has its roots in "The Camelot Project" initiated by Adobe co-founder John Warnock in 1991. PDF was standardized as ISO 32000 in 2008. The last edition as ISO 32000-2:2020 was published in December 2020.
RSA (Rivest–Shamir–Adleman) is a public-key cryptosystem, one of the oldest widely used for secure data transmission. The initialism "RSA" comes from the surnames of Ron Rivest, Adi Shamir and Leonard Adleman, who publicly described the algorithm in 1977. An equivalent system was developed secretly in 1973 at Government Communications Headquarters (GCHQ), the British signals intelligence agency, by the English mathematician Clifford Cocks. That system was declassified in 1997.
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The GOST block cipher (Magma), defined in the standard GOST 28147-89, is a Soviet and Russian government standard symmetric key block cipher with a block size of 64 bits. The original standard, published in 1989, did not give the cipher any name, but the most recent revision of the standard, GOST R 34.12-2015, specifies that it may be referred to as Magma. The GOST hash function is based on this cipher. The new standard also specifies a new 128-bit block cipher called Kuznyechik.
Web Services Security is an extension to SOAP to apply security to Web services. It is a member of the Web service specifications and was published by OASIS.
JSON is an open standard file format and data interchange format that uses human-readable text to store and transmit data objects consisting of attribute–value pairs and arrays. It is a commonly used data format with diverse uses in electronic data interchange, including that of web applications with servers.
Authenticated Encryption (AE) is an encryption scheme which simultaneously assures the data confidentiality and authenticity. Examples of encryption modes that provide AE are GCM, CCM.
XML Encryption, also known as XML-Enc, is a specification, governed by a W3C recommendation, that defines how to encrypt the contents of an XML element.
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In cryptography, a padding oracle attack is an attack which uses the padding validation of a cryptographic message to decrypt the ciphertext. In cryptography, variable-length plaintext messages often have to be padded (expanded) to be compatible with the underlying cryptographic primitive. The attack relies on having a "padding oracle" who freely responds to queries about whether a message is correctly padded or not. The information could be directly given, or leaked through a side-channel.
JSON Web Token is a proposed Internet standard for creating data with optional signature and/or optional encryption whose payload holds JSON that asserts some number of claims. The tokens are signed either using a private secret or a public/private key.
A JSON Web Signature is an IETF-proposed standard for signing arbitrary data. This is used as the basis for a variety of web-based technologies including JSON Web Token.
The Web Cryptography API is the World Wide Web Consortium’s (W3C) recommendation for a low-level interface that would increase the security of web applications by allowing them to perform cryptographic functions without having to access raw keying material. This agnostic API would perform basic cryptographic operations, such as hashing, signature generation and verification and encryption as well as decryption from within a web application.
JWE is a means of representing encrypted content using JSON data structures.
Beyond XML Encryption, the recent JSON Web Encryption (JWE) specification prescribes PKCS#1 v1.5 as a mandatory cipher. This specification is under development and at the time of writing there existed only one implementation following this specification. We verified that this implementation was vulnerable to two versions of the Bleichenbacher's attack: the direct attack based on error messages and the timing-based attack.