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This paper presents a new type of powerful cryptanalytic attacks on public-key cryptosystems, extending the more commonly studied adaptive chosen-ciphertext attacks. In the new attacks, an adversary is not only allowed to submit to a decryption oracle (valid or invalid) ciphertexts of her choice, but also to emit a “dump query” prior to the completion of a decryption operation. The dump query returns...
This paper is to prepare guidelines for providing security functions that protect USN middleware system resources from malicious nodes by providing authentication, authorization and confidentiality for middleware connection nodes (applications/manager, sensor network) to make USN middleware safe.
Recently, the requirement of database encryption has increased. But many companies are not willing to adopt the use of encryption in their existing DBs due to the degradation in performance. In this paper, we proposed and implemented a high speed database encryption model using Graphics Processing Units(GPU) that can perform parallel data processing. As a result, there was a performance improvement...
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