name: AEAD
full_form: Authenticated Encryption with Associated Data
context: The SEPP shall use JSON Web Encryption (JWE) as specified in RFC 7516 [59] for the protection of reformatted HTTP messages between the SEPPs. All encryption methods supported by JWE are AEAD methods, i.e. methods that encrypt and integrity protect in one single operation and can additionally integrity protect additional data. The dataToIntegrityProtectAndCipher and dataToIntegrityProtect blocks shall be input to JWE as plaintext and JWE Additional Authenticated Data (AAD) respectively. The JWE AEAD algorithm generates JWE encrypted text (ciphertext) and a JWE Authentication Tag (Message Authentication Code). The ciphertext is the output from symmetrically encrypting the plaintext, while the authentication tag is a value that verifies the integrity of both the generated ciphertext and the Additional Authenticated Data. The Flattened JWE JSON Serialization syntax shall be used to represent JWE as a JSON object. The session key shared between the two SEPPs, as specified in clause
description: Authenticated Encryption with Associated Data (AEAD) combines encryption and authentication into a single operation, safeguarding both confidentiality and integrity of data. It ensures that transmitted data remains secret and unaltered during transit.
explanation: The text describes AEAD as a cryptographic technology used for data protection in telecommunications, specifically within the context of JSON Web Encryption (JWE). This classification is evident from its function of securing data transmission.
section_title: 13.2.4.4.0	General
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