Cryptographic methods have been extensively employed in various systems to address
security objectives, such as data confidentiality, authentication, and secure communication …

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 …

Future networks incorporate artificial intelligence to enable smart resource management and
adaptive service provisioning. With a heterogeneous architecture and a large number of …

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 …

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 …

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 …

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 …

Raziel combines secure multi-party computation and proof-carrying code to provide privacy,
correctness and verifiability guarantees for smart contracts on blockchains. Effectively …

Forward security (FS) ensures that corrupting the current secret key in the system preserves
the privacy or integrity of the prior usages of the system. Achieving forward security is …

We introduce Oblivious Key Management Systems (KMS) as a much more secure
alternative to traditional wrapping-based KMS that form the backbone of key management in …