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 …

Periodic key rotation is a common practice designed to limit the long-term power of
cryptographic keys. Key rotation refers to the process of re-encrypting encrypted content …

An updatable encryption scheme allows a data host to update ciphertexts of a client from an
old to a new key, given so-called update tokens from the client. Rotation of the encryption …

Updatable encryption allows a client to outsource ciphertexts to some untrusted server and
periodically rotate the encryption key. The server can update ciphertexts from an old key to a …

Updatable encryption (UE) allows to periodically rotate encryption keys without the need to
decrypt and re-encrypt already encrypted data. This is achieved by means of an update …

Updatable encryption (UE) is an attractive primitive, which allows the secret key of the
outsourced encrypted data to be updated to a fresh one periodically. Several elegant works …

Updatable encryption schemes allow for key rotation on ciphertexts. A client outsourcing
storage of encrypted data to a cloud server can change its encryption key. The cloud server …

We introduce a new definition for key updates, called backward-leak uni-directional key
updates, in updatable encryption (UE). This notion is a variant of uni-directional key updates …

A common requirement in practice is to periodically rotate the keys used to encrypt stored
data. Systems used by Amazon and Google do so using a hybrid encryption technique …

Revocation and key evolving paradigms are central issues in cryptography, and in PKI in
particular. A novel concern related to these areas was raised in the recent work of Sahai …