With the broad implementations of the electronic business and government applications, robust system security and strong privacy protection have become essential requirements for remote user authentication schemes. Re...With the broad implementations of the electronic business and government applications, robust system security and strong privacy protection have become essential requirements for remote user authentication schemes. Recently, Chen et al. pointed out that Wang et al.＇s scheme is vulnerable to the user impersonation attack and parallel session attack, and proposed an enhanced version to overcome the identified security flaws. In this paper, however, we show that Chen et al.＇s scheme still cannot achieve the claimed security goals and report its following problems： （1） It suffers from the offline password guessing attack, key compromise impersonation attack and known key attack; （2） It fails to provide forward secrecy; （3） It is not easily repairable. As our main contribution, a robust dynamic ID-based scheme based on non-tamper resistance assumption of the smart cards is presented to cope with the aforementioned defects, while preserving the merits of different related schemes. The analysis demonstrates that our scheme meets all the proposed criteria and eliminates several grave security threats that are difficult to be tackled at the same time in previous scholarship.展开更多
Background A disintegrin and metalloprotease 9 （ADAM9） is a membrane-anchored enzyme which is considered to be involved in some diseases including tumor. However, the role of ADAM9 in castration resistant prostate c...Background A disintegrin and metalloprotease 9 （ADAM9） is a membrane-anchored enzyme which is considered to be involved in some diseases including tumor. However, the role of ADAM9 in castration resistant prostate cancer （CRPC） is not clear. This study aimed to explore the different expressions on protein and messenger RNA （mRNA） level of ADAM9 between hormonal sensitive prostate cancer （HSPC） and CRPC tissue, and find the correlation with prognosis.展开更多
基金supported by the National Natural Science Foundation of China(61170241,61073042)
文摘With the broad implementations of the electronic business and government applications, robust system security and strong privacy protection have become essential requirements for remote user authentication schemes. Recently, Chen et al. pointed out that Wang et al.＇s scheme is vulnerable to the user impersonation attack and parallel session attack, and proposed an enhanced version to overcome the identified security flaws. In this paper, however, we show that Chen et al.＇s scheme still cannot achieve the claimed security goals and report its following problems： （1） It suffers from the offline password guessing attack, key compromise impersonation attack and known key attack; （2） It fails to provide forward secrecy; （3） It is not easily repairable. As our main contribution, a robust dynamic ID-based scheme based on non-tamper resistance assumption of the smart cards is presented to cope with the aforementioned defects, while preserving the merits of different related schemes. The analysis demonstrates that our scheme meets all the proposed criteria and eliminates several grave security threats that are difficult to be tackled at the same time in previous scholarship.
基金This study was supported by grants from Shanghai Cancer Center Foundation, the Natural Science Foundation of China （No. 30973009）, and the Shanghai National Natural Science Foundation （No. 1 lZR1407400）
文摘Background A disintegrin and metalloprotease 9 （ADAM9） is a membrane-anchored enzyme which is considered to be involved in some diseases including tumor. However, the role of ADAM9 in castration resistant prostate cancer （CRPC） is not clear. This study aimed to explore the different expressions on protein and messenger RNA （mRNA） level of ADAM9 between hormonal sensitive prostate cancer （HSPC） and CRPC tissue, and find the correlation with prognosis.
