AEAD as a single primitive in the symmetric setting became popular only after 2001, so I believe Jee Hea An simply didn't think about "additional data" as a useful feature back in 2001. I can only speculate but I believe one reason why authenticated public-key encryption has not received much attention is that (even unauthenticated) public-key encryption itself is a rarely used primitive.

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This document defines algorithms for Authenticated Encryption with Associated Data (AEAD), and defines a uniform interface and a registry for such algorithms. The interface and registry can be used as an application-independent set of cryptoalgorithm suites.

Modern encryption best practices encourage the use of authenticated encryption: ciphertext contents should be authenticated during the decryption process, preventing either malicious or unintentional silent corruption. Share your videos with friends, family, and the world The architects of TLS 1.3 opted for a third way: AEAD cipher suites. These cipher suites compute MAC and encrypt simultaneously, eliminating the padding oracle vulnerability—hopefully once and for all. How to configure TLS for security (plus performance and compatibility) TLS configuration involves quite a few steps. Here is what you need to do.

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Authenticated Encryption with Associated Data (AEAD) provides both authenticated encryption (confidentiality and authentication) and the ability to check the 

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The additionally authenticated data (AAD) for an opening or sealing operation. This data is authenticated but is not encrypted. Algorithm. An AEAD Algorithm.

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Authenticated-Encryption with Associated-Data. Author: Phillip Rogaway. Reference: ACM Conference on Computer and Communications Security (CCS' 02), 

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인증된 암호 방식(Authenticated encryption, AE)과 관련 데이터로 인증된 암호 방식 (authenticated encryption with associated data, AEAD)은 데이터의 

Simply understanding the signature of an AEAD-scheme—what are the inputs and outputs—may make a helpful abstraction boundary. 2 Preliminaries Adversaries. The first AEAD encrypt/decrypt operation uses a counting nonce starting from 0. After each encrypt/decrypt operation, the nonce is incremented by one as if it were an unsigned little-endian integer. Note that each TCP chunk involves two AEAD encrypt/decrypt operation: one for the payload length, and one for the payload. 1.1.4 AEAD Requirements The AEAD requirements are provided in [44, Section 3.1]. Grain-128AEAD takes a variable-length plaintext, variable-length associ-ated data, a xed-length nonce (IV) of size 96 bits, and a xed-length key of size 128 bits.

The AEAD ciphers - regardless of the internal structure - should be immune to the problems caused by authenticate-then-encrypt. AEAD algorithms generally come with a security proof. These security proofs are of course dependent on the underlying primitives, but it gives more confidence in the full scheme none-the-less.

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