Anonymous security authentication scheme using elliptic curve cryptography and hash function in mobile network by Yuehui CHEN, Miao HUANG

“…In order to prevent personal data from being lacked and improve the existing mobile network roaming anonymous authentication scheme,anonymous security authentication scheme using elliptic curve cryptography and hash functions in mobile network was proposed.With elliptic curve cryptography and hash functions,random numbers were used to replace public key encryption and time stamp.Firstly,before using the roaming services of a foreign agent（FA）,hash function was calculated.A host agent（HA）was used by mobile user to register.Then,authentication and session key were set up with elliptic curve encryption.If HA is always in FA,MU can update the session key with FA.Finally,through a common channel,MU could utilize HA to change their passwords.The analysis of the performance and safety shows that,compared with other similar programs,the proposed scheme has significantly improved efficiency and safety.And the virtual computing time is only 2.000 85 seconds,which sharply reduces the cost of computing.…”
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Security Analysis and Improvement of an Anonymous Authentication Scheme for Roaming Services by Youngsook Lee, Juryon Paik

“…In this work, we revisit He et al.’s anonymous authentication scheme for roaming services and present previously unpublished security weaknesses in the scheme: (1) it fails to provide user anonymity against any third party as well as the foreign agent, (2) it cannot protect the passwords of mobile users due to its vulnerability to an offline dictionary attack, and (3) it does not achieve session-key security against a man-in-the-middle attack. …”
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Lobbying of Qatar's Interests in the United States and the Qatar Diplomatic Crisis by D. B. Grafov

“…It uses the facts and data disclosed by the consulting and lobbying firms according to “The Foreign Agents Registration Act of 1938” and “The Lobbying Disclosure Act of 1995”. …”
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Legal Aspects of Regulating Lobbying in the United States of America and Canada by E. A. Kremyanskaya

“…The author explores the evolution of development of the lobbying legislation in the USA, and in particular reviews the Foreign Agents Registration Act of 1938, Federal Regulation of Lobbying Act of 1976, Lobbying Disclosure Act of 1995, as well as evolution of the Canadian legislation, where the Act on Lobbying of 1989 is in force, which had substantial changes during the last ten years. …”
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