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» On the Security Notions for Public-Key Encryption Schemes
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IEICET
2006
108views more  IEICET 2006»
13 years 7 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»
14 years 1 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
14 years 1 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
13 years 5 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»
13 years 7 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