This paper proposes secure regenerating codes that are composed of non-secure regenerating codes and a new all-or-nothing transform. Unlike the previous analysis of secure regenerating codes, the security of the proposed codes is analyzed in the sense of the indistinguishability. The advantage of the proposed codes is that the overhead caused by the security against eavesdropping is much less t...

On February 7, 2005, the Federal Trade Commission reported that at least 10 million Americans are affected by identity (ID) theft each year[7]. The US Department of Justice defines identity theft as ”all types of crime in which someone wrongfully obtains and uses another person’s personal data in some way that involves fraud or deception, typically for economic gain[17].” ID thieves target any ...

Bellare, Boldyreva, Desai, and Pointcheval [2] proposed a new security requirement of encryption schemes called “key-privacy” or “anonymity.” It asks that an encryption scheme provides privacy of the key under which the encryption was performed. That is, if an encryption scheme provides the key-privacy, then the receiver is anonymous from the point of view of the adversary. They formalized the ...

We draw on data from a national RDD telephone sample of 1549 adult Americans conducted between October 15, 2001 and March 2, 2002 to explore the impact of a need for security on support for national security policies in the aftermath of the 911 terrorist attacks. In past research, an external threat has been assumed to have uniform impact on an affected population, a claim that has met with gro...

A Charge Recycling Sense Amplifier Based Logic is presented. This logic is derived from the Sense Amplifier Based Logic, which is a logic style with signal independent power consumption. It has been proven previously to protect security devices such as Smart Cards against power attacks. Experimental results show that the use of advanced circuit techniques, which enable charge recycling and inte...

Suppose many messages are encrypted using a public-key encryption scheme. Imagine an adversary that may adaptively ask for openings of some of the ciphertexts. Selective opening (SO) security requires that the unopened ciphertexts remain secure, in the sense that this adversary cannot derive any nontrivial information about the messages in the unopened ciphertexts. Surprisingly, the question wh...

in 2003, waters, felten and sahai introduced a novel cryptographic primitive called incomparable public key cryptosystem to protect anonymity of message receivers in an untrusted network. in this setting, a receiver is allowed to create many anonymous identities for himself without divulging the fact that all these identities refer to the same receiver. recently, lee and lim improved the soluti...