As a new computing mode,cloud computing can provide users with virtualized and scalable web services,which faced with serious security challenges,however.Access control is one of the most important measures to ensure ...As a new computing mode,cloud computing can provide users with virtualized and scalable web services,which faced with serious security challenges,however.Access control is one of the most important measures to ensure the security of cloud computing.But applying traditional access control model into the Cloud directly could not solve the uncertainty and vulnerability caused by the open conditions of cloud computing.In cloud computing environment,only when the security and reliability of both interaction parties are ensured,data security can be effectively guaranteed during interactions between users and the Cloud.Therefore,building a mutual trust relationship between users and cloud platform is the key to implement new kinds of access control method in cloud computing environment.Combining with Trust Management(TM),a mutual trust based access control(MTBAC) model is proposed in this paper.MTBAC model take both user's behavior trust and cloud services node's credibility into consideration.Trust relationships between users and cloud service nodes are established by mutual trust mechanism.Security problems of access control are solved by implementing MTBAC model into cloud computing environment.Simulation experiments show that MTBAC model can guarantee the interaction between users and cloud service nodes.展开更多
It is necessary to construct an effective trust model to build trust relationship between peers in peer-to-peer （P2P） network and enhance the security and reliability of P2P systems. The current trust models only fo...It is necessary to construct an effective trust model to build trust relationship between peers in peer-to-peer （P2P） network and enhance the security and reliability of P2P systems. The current trust models only focus on the consumers＇ evaluation to a transaction, which may be abused by malicious peers to exaggerate or slander the provider deliberately. In this paper, we propose a novel trust model based on mutual evaluation, called METrust, to suppress the peers＇ malicious behavior, such as dishonest evaluation and strategic attack. METrust considers the factors including mutual evaluation, similarity risk, time window, incentive, and punishment mechanism. The trust value is composed of the direct trust value and the recommendation trust value. In order to inhibit dishonest evaluation, both participants should give evaluation information based on peers＇ own experiences about the transaction while computing the direct trust value. In view of this, the mutual evaluation consistency factor and its time decay function are proposed. Besides, to reduce the risk of computing the recommendation trust based on the recommendations of friend peers, the similarity risk is introduced to measure the uncertainty of the similarity computing, while similarity is used to measure credibility. The experimental results show that METrust is effective, and it has advantages in the inhibition of the various malicious behaviors.展开更多
Drift marked China-Japan ties in most part of the 1990s, accompanied with wild swings. The last decade of the 20th century witnessed the commemoration of the 20th anniversary(1972-1992)of diplomatic normalization, the...Drift marked China-Japan ties in most part of the 1990s, accompanied with wild swings. The last decade of the 20th century witnessed the commemoration of the 20th anniversary(1972-1992)of diplomatic normalization, the 50th anniversary(1945-1995)of the victory of the War of Resistance Against Japanese Aggression, the furor over the "No War decision" in Japan, and the shock waves from the reorientation of Japan-U. S. relationship in 1996 and the revision of the展开更多
China and the United States are considered to be the most important bilateral relations in the world,and they are also the most complex one in the world.Competition,prevention and cooperation,mutual trust and mutual m...China and the United States are considered to be the most important bilateral relations in the world,and they are also the most complex one in the world.Competition,prevention and cooperation,mutual trust and mutual mapping out a different side is the current state of Sino-US relations.How to protect the mechanism of the accident but not an accident drag?How to ensure that both China and the United States have a minimum of judgment of each other's major military strategic intentions and the direction of a major national strategy?Sino-US relations and mutual trust will not lead to hostile nations.When faced with inevitable differences and competition,how can China and the United States establish an effective mutual trust to avoid conflict?展开更多
This year marks the 50th anniversary of the establishment of diplomatic relations between China and the EU.Over half a century,China and the EU have steadily enhanced political mutual trust,deepened mutually beneficia...This year marks the 50th anniversary of the establishment of diplomatic relations between China and the EU.Over half a century,China and the EU have steadily enhanced political mutual trust,deepened mutually beneficial cooperation,and firmly upheld multilateralism,bringing tangible benefits to both peoples and making a significant contribution to global peace and development.展开更多
From the establishment of dialogue relations between China and ASEAN in 1991 to the 30th anniversary of their dialogue relations in 2021,bilateral ties have been continuously elevated to a comprehensive strategic part...From the establishment of dialogue relations between China and ASEAN in 1991 to the 30th anniversary of their dialogue relations in 2021,bilateral ties have been continuously elevated to a comprehensive strategic partnership.We have witnessed relentless enhancement of political mutual trust,deepening economic cooperation,and closer people-to-people exchanges.The sustained development of the China-ASEAN bilateral partnership is precisely what has generated significant positive spillover e!ects,driving profound changes in China’s relations with neighboring countries.The various levels of partnerships China has established with neighboring countries will play an important role in shaping a networked,non-hierarchical regional order in the future,and such relationships have already become a key pathway for China and its neighbors to jointly build a community with a shared future in the region.展开更多
In 2025,China and Singapore commemorate the 35th anniversary of diplomatic relations-a partnership built on pragmatic cooperation,regional connectivity,and enduring mutual trust.From early trade exchange to today’s m...In 2025,China and Singapore commemorate the 35th anniversary of diplomatic relations-a partnership built on pragmatic cooperation,regional connectivity,and enduring mutual trust.From early trade exchange to today’s multidimensional collaboration,the relationship has steadily evolved in response to shifting global dynamics and shared long-term interests.Long before diplomatic ties were established in 1990,economic exchange between China and Singapore was already taking shape.By the 1960s,Chinese-made products such as Hero fountain pens and Meilin luncheon meat were already common in Singaporean households.The city-state functioned as a regional distribution hub for Chinese goods moving into Southeast Asia-a role that reflected its early significance as a connector in the regional economy.展开更多
President Xi Jinping’s second state visit to Cambodia in nine years is an important milestone in the development of bilateral relations and practical cooperation,which will endow new meaning to the China-Cambodia com...President Xi Jinping’s second state visit to Cambodia in nine years is an important milestone in the development of bilateral relations and practical cooperation,which will endow new meaning to the China-Cambodia community with a shared future.Strategic Guidance with Political Mutual Trust A high level of political mutual trust has paved the way for the development of China-Cambodia relations.展开更多
基金ACKNOWLEDGEMENT This paper is supported by the Opening Project of State Key Laboratory for Novel Software Technology of Nanjing University, China （Grant No.KFKT2012B25） and National Science Foundation of China （Grant No.61303263）.
文摘As a new computing mode,cloud computing can provide users with virtualized and scalable web services,which faced with serious security challenges,however.Access control is one of the most important measures to ensure the security of cloud computing.But applying traditional access control model into the Cloud directly could not solve the uncertainty and vulnerability caused by the open conditions of cloud computing.In cloud computing environment,only when the security and reliability of both interaction parties are ensured,data security can be effectively guaranteed during interactions between users and the Cloud.Therefore,building a mutual trust relationship between users and cloud platform is the key to implement new kinds of access control method in cloud computing environment.Combining with Trust Management(TM),a mutual trust based access control(MTBAC) model is proposed in this paper.MTBAC model take both user's behavior trust and cloud services node's credibility into consideration.Trust relationships between users and cloud service nodes are established by mutual trust mechanism.Security problems of access control are solved by implementing MTBAC model into cloud computing environment.Simulation experiments show that MTBAC model can guarantee the interaction between users and cloud service nodes.
基金supported by National Natural Science Foundation of China (No.60873231)Research Fund for the Doctoral Program of Higher Education (No.20093223120001)+2 种基金Science and Technology Support Program of Jiangsu Province (No.BE2009158)Natural Science Fund of Higher Education of Jiangsu Province(No.09KJB520010)Special Fund for Fast Sharing of Science Paper in Net Era by CSTD (No.2009117)
文摘It is necessary to construct an effective trust model to build trust relationship between peers in peer-to-peer （P2P） network and enhance the security and reliability of P2P systems. The current trust models only focus on the consumers＇ evaluation to a transaction, which may be abused by malicious peers to exaggerate or slander the provider deliberately. In this paper, we propose a novel trust model based on mutual evaluation, called METrust, to suppress the peers＇ malicious behavior, such as dishonest evaluation and strategic attack. METrust considers the factors including mutual evaluation, similarity risk, time window, incentive, and punishment mechanism. The trust value is composed of the direct trust value and the recommendation trust value. In order to inhibit dishonest evaluation, both participants should give evaluation information based on peers＇ own experiences about the transaction while computing the direct trust value. In view of this, the mutual evaluation consistency factor and its time decay function are proposed. Besides, to reduce the risk of computing the recommendation trust based on the recommendations of friend peers, the similarity risk is introduced to measure the uncertainty of the similarity computing, while similarity is used to measure credibility. The experimental results show that METrust is effective, and it has advantages in the inhibition of the various malicious behaviors.
文摘Drift marked China-Japan ties in most part of the 1990s, accompanied with wild swings. The last decade of the 20th century witnessed the commemoration of the 20th anniversary(1972-1992)of diplomatic normalization, the 50th anniversary(1945-1995)of the victory of the War of Resistance Against Japanese Aggression, the furor over the "No War decision" in Japan, and the shock waves from the reorientation of Japan-U. S. relationship in 1996 and the revision of the
文摘China and the United States are considered to be the most important bilateral relations in the world,and they are also the most complex one in the world.Competition,prevention and cooperation,mutual trust and mutual mapping out a different side is the current state of Sino-US relations.How to protect the mechanism of the accident but not an accident drag?How to ensure that both China and the United States have a minimum of judgment of each other's major military strategic intentions and the direction of a major national strategy?Sino-US relations and mutual trust will not lead to hostile nations.When faced with inevitable differences and competition,how can China and the United States establish an effective mutual trust to avoid conflict?
文摘This year marks the 50th anniversary of the establishment of diplomatic relations between China and the EU.Over half a century,China and the EU have steadily enhanced political mutual trust,deepened mutually beneficial cooperation,and firmly upheld multilateralism,bringing tangible benefits to both peoples and making a significant contribution to global peace and development.
文摘From the establishment of dialogue relations between China and ASEAN in 1991 to the 30th anniversary of their dialogue relations in 2021,bilateral ties have been continuously elevated to a comprehensive strategic partnership.We have witnessed relentless enhancement of political mutual trust,deepening economic cooperation,and closer people-to-people exchanges.The sustained development of the China-ASEAN bilateral partnership is precisely what has generated significant positive spillover e!ects,driving profound changes in China’s relations with neighboring countries.The various levels of partnerships China has established with neighboring countries will play an important role in shaping a networked,non-hierarchical regional order in the future,and such relationships have already become a key pathway for China and its neighbors to jointly build a community with a shared future in the region.
文摘In 2025,China and Singapore commemorate the 35th anniversary of diplomatic relations-a partnership built on pragmatic cooperation,regional connectivity,and enduring mutual trust.From early trade exchange to today’s multidimensional collaboration,the relationship has steadily evolved in response to shifting global dynamics and shared long-term interests.Long before diplomatic ties were established in 1990,economic exchange between China and Singapore was already taking shape.By the 1960s,Chinese-made products such as Hero fountain pens and Meilin luncheon meat were already common in Singaporean households.The city-state functioned as a regional distribution hub for Chinese goods moving into Southeast Asia-a role that reflected its early significance as a connector in the regional economy.
文摘President Xi Jinping’s second state visit to Cambodia in nine years is an important milestone in the development of bilateral relations and practical cooperation,which will endow new meaning to the China-Cambodia community with a shared future.Strategic Guidance with Political Mutual Trust A high level of political mutual trust has paved the way for the development of China-Cambodia relations.
