this is the case study done on the technique in information security i.e. CRYPTOGRAPHY. various cryptographic techniques are described here.
标签： i.e. CRYPTOGRAPHY information the
上传时间： 2014-01-27
上传用户：ls530720646
pHash is an implementation of various perceptual hashing algorithms. A perceptual hash is a fingerprint of an audio, video, or image file that is mathematically based on the audio or visual content contained within. Unlike cryptographic hash functions that rely on the avalanche effect of small changes in input leading to drastic changes in the output, perceptual hashes are "close" to one another if the inputs are visually or auditorily similar. As a result, perceptual hashes must also be robust enough to take into account transformations that could have been performed on the input.
标签： perceptual implementation algorithms fingerpr
上传时间： 2013-12-08
上传用户：星仔
关于美国fips140的文档 SECURITY REQUIREMENTS FOR cryptographic MODULES
标签： FIPS
上传时间： 2015-03-08
上传用户：lipei
为了支持密码编译功能，微软在 Windows API 之中加入了 cryptographic API (CryptoAPI)??，然而 CryptoAPI 的使用方法相当复杂，为了简化 CryptoAPI 的使用，微软即将它以 COM 的方式包装成 CAPICOM?，让应用程序只需要利用 COM 调用方式，即可使用 CryptoAPI。
标签： capicom
上传时间： 2015-03-12
上传用户：dai48625
The ever-increasing demand for private and sensitive data transmission over wireless net- works has made security a crucial concern in the current and future large-scale, dynamic, and heterogeneous wireless communication systems. To address this challenge, computer scientists and engineers have tried hard to continuously come up with improved crypto- graphic algorithms. But typically we do not need to wait too long to find an efficient way to crack these algorithms. With the rapid progress of computational devices, the current cryptographic methods are already becoming more unreliable. In recent years, wireless re- searchers have sought a new security paradigm termed physical layer security. Unlike the traditional cryptographic approach which ignores the effect of the wireless medium, physi- cal layer security exploits the important characteristics of wireless channel, such as fading, interference, and noise, for improving the communication security against eavesdropping attacks. This new security paradigm is expected to complement and significantly increase the overall communication security of future wireless networks.
标签： Communications Physical Security Wireless Layer in
上传时间： 2020-05-31
上传用户：shancjb
