Efficient Schemes for Committing Authenticated Encryption
Efficient Schemes for Committing Authenticated Encryption
复制标题
DOI:
10.1007/978-3-031-07085-3_29
复制
发表时间:
2022
期刊:
影响因子:
--
通讯作者:
M. Bellare;V. Hoang
中科院分区:
文献类型:
--
作者:
M. Bellare;V. Hoang
This paper provides efficient authenticated-encryption (AE) schemes in which a ciphertext is a commitment to the key. These are extended, at minimal additional cost, to schemes where the ciphertext is a commitment to all encryption inputs, meaning key, nonce, associated data and message. Our primary schemes are modifications of GCM (for basic, unique-nonce AE security) and AES-GCM-SIV (for misuse-resistant AE security) and add both forms of commitment without any increase in ciphertext size. We also give more generic, but somewhat more costly, solutions.