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» On the Security Notions for Public-Key Encryption Schemes
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IEICET
2006
108views more  IEICET 2006»
15 years 1 months ago
Plaintext Simulatability
We propose a new security class, called plaintext-simulatability, defined over the public-key encryption schemes. The notion of plaintext simulatability (denoted PS) is similar to ...
Eiichiro Fujisaki
FSE
2004
Springer
167views Cryptology» more  FSE 2004»
15 years 7 months ago
Nonce-Based Symmetric Encryption
Symmetric encryption schemes are usually formalized so as to make the encryption operation a probabilistic or state-dependent function E of the message M and the key K: the user su...
Phillip Rogaway
NDSS
2005
IEEE
15 years 7 months ago
Improved Proxy Re-Encryption Schemes with Applications to Secure Distributed Storage
In 1998, Blaze, Bleumer, and Strauss proposed an application called atomic proxy re-encryption, in which a semi-trusted proxy converts a ciphertext for Alice into a ciphertext for...
Giuseppe Ateniese, Kevin Fu, Matthew Green, Susan ...
IEEECIT
2010
IEEE
14 years 11 months ago
Efficient Sharing of Secure Cloud Storage Services
Suppose Bob, the boss in Company A, pays a secure cloud storage service and authorizes all the employees in that company to share such a service. There exists a user hierarchy: Bob...
Qin Liu, Guojun Wang, Jie Wu
JOC
2007
129views more  JOC 2007»
15 years 1 months ago
Formal Proofs for the Security of Signcryption
Signcryption is a public key or asymmetric cryptographic method that provides simultaneously both message confidentiality and unforgeability at a lower computational and communica...
Joonsang Baek, Ron Steinfeld, Yuliang Zheng