The Local Forking Lemma and Its Application to Deterministic Encryption
The Local Forking Lemma and Its Application to Deterministic Encryption
复制标题
局部分叉引理及其在确定性加密中的应用
DOI:
10.1007/978-3-030-34618-8_21
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发表时间:
2019
期刊:
影响因子:
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通讯作者:
Mihir Bellare, Wei Dai
中科院分区:
文献类型:
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作者:
Mihir Bellare, Wei Dai
We bypass impossibility results for the deterministic encryption of public-key-dependent messages, showing that, in this setting, the classical Encrypt-with-Hash scheme provides message-recovery security, across a broad range of message distributions. The proof relies on a new variant of the forking lemma in which the random oracle is reprogrammed on just a single fork point rather than on all points past the fork.