Updatable Encryption with Post-Compromise Security

Updatable Encryption with Post-Compromise Security
复制标题

具有泄露后安全性的可更新加密

DOI:
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发表时间:
2018
期刊:
IACR Cryptology ePrint Archive
影响因子:
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通讯作者:
Björn Tackmann
Björn Tackmann
中科院分区:
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文献类型:
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作者:
Anja Lehmann;Björn Tackmann

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可更新的加密方案允许定期旋转加密密钥,并将现有的密文从旧密钥移动到新密钥。这些密文更新是在所谓的更新令牌的帮助下完成的,并且可以由不受信任的方执行,因为该更新从未解密数据。可更新的加密在将加密数据外包的设置中特别有用,例如存储在云服务器上。数据所有者可以产生更新令牌,并且云服务器可以更新密码。
An updatable encryption scheme allows to periodically rotate the encryption key and move already existing ciphertexts from the old to the new key. These ciphertext updates are done with the help of a so-called update token and can be performed by an untrusted party, as the update never decrypts the data. Updatable encryption is particularly useful in settings where encrypted data is outsourced, e.g., stored on a cloud server. The data owner can produce an update token, and the cloud server can update the ciphertexts.
DOI: 10.1145/3319535.3363196
发表时间: 2019-11
期刊: Proceedings of the 2019 ACM SIGSAC Conference on Computer and Communications Security
影响因子: --
作者:
Stanislaw Jarecki;H. Krawczyk;Jason K. Resch
通讯作者: Stanislaw Jarecki;H. Krawczyk;Jason K. Resch