Key agreement and identification protocols are much applicable among current protocols in cryptography. These protocols are used for a secure communication through an insecure channel in a network like Internet. Chall...Key agreement and identification protocols are much applicable among current protocols in cryptography. These protocols are used for a secure communication through an insecure channel in a network like Internet. Challenge-response identification protocol is an important identification method. In this paper, by making some slight changes in the public-key-based challenge-response identification protocol, we have introduced a new scheme in which the users in addition to authenticating each other can also agree on multiple keys. Then, this protocol＇s security from both aspects regarding the identification and key agreement will be analyzed. At the end, we will prove our scheme has a high security and efficiency in comparison with some famous and similar protocols.展开更多
After a long period without new NPPs （nuclear power plants） being designed or constructed in Europe, new build projects have been prepared, planned and are now under construction. The majority of these projects invo...After a long period without new NPPs （nuclear power plants） being designed or constructed in Europe, new build projects have been prepared, planned and are now under construction. The majority of these projects involve a new design with an enhanced level of safety, called GEN （Generation） III＋. Although the serious events at the Japanese Fukushima Daiichi NPP caused by a tsunami led to a reduction in the number of new projects or even a phase out of nuclear power in some countries, only a slight reduction or delay of projects is expected globally. GEN III＋ new build projects give rise to several economical, technical, human resource and organizational challenges. The paper starts with a discussion of these challenges and presents several activities that have been started to deal with them. It focuses on the development of human resources, coordinated approach of operators and suppliers can lead to the needs-oriented human resources development. particularly with operators and suppliers of GEN III＋ NPPs. Only a successful execution of these projects. The focus must be on the展开更多
文摘Key agreement and identification protocols are much applicable among current protocols in cryptography. These protocols are used for a secure communication through an insecure channel in a network like Internet. Challenge-response identification protocol is an important identification method. In this paper, by making some slight changes in the public-key-based challenge-response identification protocol, we have introduced a new scheme in which the users in addition to authenticating each other can also agree on multiple keys. Then, this protocol＇s security from both aspects regarding the identification and key agreement will be analyzed. At the end, we will prove our scheme has a high security and efficiency in comparison with some famous and similar protocols.
文摘After a long period without new NPPs （nuclear power plants） being designed or constructed in Europe, new build projects have been prepared, planned and are now under construction. The majority of these projects involve a new design with an enhanced level of safety, called GEN （Generation） III＋. Although the serious events at the Japanese Fukushima Daiichi NPP caused by a tsunami led to a reduction in the number of new projects or even a phase out of nuclear power in some countries, only a slight reduction or delay of projects is expected globally. GEN III＋ new build projects give rise to several economical, technical, human resource and organizational challenges. The paper starts with a discussion of these challenges and presents several activities that have been started to deal with them. It focuses on the development of human resources, coordinated approach of operators and suppliers can lead to the needs-oriented human resources development. particularly with operators and suppliers of GEN III＋ NPPs. Only a successful execution of these projects. The focus must be on the
