The Experts below are selected from a list of 29970 Experts worldwide ranked by ideXlab platform

Kilsoo Chun - One of the best experts on this subject based on the ideXlab platform.

  • efficient revocation of Security Capability in certificateless public key cryptography
    International Conference on Knowledge-Based and Intelligent Information and Engineering Systems, 2005
    Co-Authors: Dae Youb Kim, Dong Hoon Lee, Jongin Lim, Kilsoo Chun
    Abstract:

    This paper presents the first mediated certificateless public key encryption and signature schemes. We also extend our schemes into hierarchical schemes. Our schemes does not suffer from the key escrow property that seems to be inherent in the mediated identity-based schemes. Key escrow is not always a good property for all applications because the exposure of a master key enable all the users' private keys to be leaked. Our mediated certificateless public key encryption and hierarchical schemes also support role based access control (RBAC) without the key escrow to manage the access to resources of a system. We finally describe Security of our schemes and compare our schemes with the mediated identity based schemes from efficiency points of view.

  • KES (2) - Efficient revocation of Security Capability in certificateless public key cryptography
    Lecture Notes in Computer Science, 2005
    Co-Authors: Dae Youb Kim, Dong Hoon Lee, Jongin Lim, Kilsoo Chun
    Abstract:

    This paper presents the first mediated certificateless public key encryption and signature schemes. We also extend our schemes into hierarchical schemes. Our schemes does not suffer from the key escrow property that seems to be inherent in the mediated identity-based schemes. Key escrow is not always a good property for all applications because the exposure of a master key enable all the users' private keys to be leaked. Our mediated certificateless public key encryption and hierarchical schemes also support role based access control (RBAC) without the key escrow to manage the access to resources of a system. We finally describe Security of our schemes and compare our schemes with the mediated identity based schemes from efficiency points of view.

  • ICCSA (2) - Fine grained control of Security Capability and forward Security in a pairing based signature scheme
    Computational Science and Its Applications – ICCSA 2005, 2005
    Co-Authors: Dae Youb Kim, Dong Hoon Lee, Jongin Lim, Kilsoo Chun
    Abstract:

    Recently, Libert and Quisquater showed that the fast revocation method using a Security Mediator(SEM) in a mRSA can be applied to the Boneh-Franklin identity based encryption and GDH signature scheme. In this paper we propose a mediated identity based signature(mIBS) scheme which applies the SEM architecture to an identity based signature. The use of a SEM offers a number of practical advantages over current revocation techniques. The benefits include simplified validation of digital signatures, efficient and fast revocation of signature capabilities. We further propose a forward mediated signature scheme with an efficient batch verification and analyze their Security and efficiency.

Deng Bing - One of the best experts on this subject based on the ideXlab platform.

Dae Youb Kim - One of the best experts on this subject based on the ideXlab platform.

  • efficient revocation of Security Capability in certificateless public key cryptography
    International Conference on Knowledge-Based and Intelligent Information and Engineering Systems, 2005
    Co-Authors: Dae Youb Kim, Dong Hoon Lee, Jongin Lim, Kilsoo Chun
    Abstract:

    This paper presents the first mediated certificateless public key encryption and signature schemes. We also extend our schemes into hierarchical schemes. Our schemes does not suffer from the key escrow property that seems to be inherent in the mediated identity-based schemes. Key escrow is not always a good property for all applications because the exposure of a master key enable all the users' private keys to be leaked. Our mediated certificateless public key encryption and hierarchical schemes also support role based access control (RBAC) without the key escrow to manage the access to resources of a system. We finally describe Security of our schemes and compare our schemes with the mediated identity based schemes from efficiency points of view.

  • KES (2) - Efficient revocation of Security Capability in certificateless public key cryptography
    Lecture Notes in Computer Science, 2005
    Co-Authors: Dae Youb Kim, Dong Hoon Lee, Jongin Lim, Kilsoo Chun
    Abstract:

    This paper presents the first mediated certificateless public key encryption and signature schemes. We also extend our schemes into hierarchical schemes. Our schemes does not suffer from the key escrow property that seems to be inherent in the mediated identity-based schemes. Key escrow is not always a good property for all applications because the exposure of a master key enable all the users' private keys to be leaked. Our mediated certificateless public key encryption and hierarchical schemes also support role based access control (RBAC) without the key escrow to manage the access to resources of a system. We finally describe Security of our schemes and compare our schemes with the mediated identity based schemes from efficiency points of view.

  • ICCSA (2) - Fine grained control of Security Capability and forward Security in a pairing based signature scheme
    Computational Science and Its Applications – ICCSA 2005, 2005
    Co-Authors: Dae Youb Kim, Dong Hoon Lee, Jongin Lim, Kilsoo Chun
    Abstract:

    Recently, Libert and Quisquater showed that the fast revocation method using a Security Mediator(SEM) in a mRSA can be applied to the Boneh-Franklin identity based encryption and GDH signature scheme. In this paper we propose a mediated identity based signature(mIBS) scheme which applies the SEM architecture to an identity based signature. The use of a SEM offers a number of practical advantages over current revocation techniques. The benefits include simplified validation of digital signatures, efficient and fast revocation of signature capabilities. We further propose a forward mediated signature scheme with an efficient batch verification and analyze their Security and efficiency.

Hui Zhang - One of the best experts on this subject based on the ideXlab platform.

  • A Blind Watermark Algorithm in Mixed Transform Domain Based on Chaotic Sequence Locating
    2008 3rd International Conference on Innovative Computing Information and Control, 2008
    Co-Authors: Jing Liu, Fei Gao, Hui Zhang
    Abstract:

    This paper presents a blind watermark algorithm in mixed transform domain by using chaotic sequence for the watermark locating. After DWT, the DCT is applied on the low frequency and chaotic sequence is used to locate the position of the watermark information in DCT domain. The watermark information is embedded by comparing the frequency coefficients. With favorable transparency, the experimental results show that the algorithm has a good robustness against noise, image processing, malicious attacks and image compression. The adoption of chaotic sequences enhances the Security Capability.

Dong Hoon Lee - One of the best experts on this subject based on the ideXlab platform.

  • efficient revocation of Security Capability in certificateless public key cryptography
    International Conference on Knowledge-Based and Intelligent Information and Engineering Systems, 2005
    Co-Authors: Dae Youb Kim, Dong Hoon Lee, Jongin Lim, Kilsoo Chun
    Abstract:

    This paper presents the first mediated certificateless public key encryption and signature schemes. We also extend our schemes into hierarchical schemes. Our schemes does not suffer from the key escrow property that seems to be inherent in the mediated identity-based schemes. Key escrow is not always a good property for all applications because the exposure of a master key enable all the users' private keys to be leaked. Our mediated certificateless public key encryption and hierarchical schemes also support role based access control (RBAC) without the key escrow to manage the access to resources of a system. We finally describe Security of our schemes and compare our schemes with the mediated identity based schemes from efficiency points of view.

  • KES (2) - Efficient revocation of Security Capability in certificateless public key cryptography
    Lecture Notes in Computer Science, 2005
    Co-Authors: Dae Youb Kim, Dong Hoon Lee, Jongin Lim, Kilsoo Chun
    Abstract:

    This paper presents the first mediated certificateless public key encryption and signature schemes. We also extend our schemes into hierarchical schemes. Our schemes does not suffer from the key escrow property that seems to be inherent in the mediated identity-based schemes. Key escrow is not always a good property for all applications because the exposure of a master key enable all the users' private keys to be leaked. Our mediated certificateless public key encryption and hierarchical schemes also support role based access control (RBAC) without the key escrow to manage the access to resources of a system. We finally describe Security of our schemes and compare our schemes with the mediated identity based schemes from efficiency points of view.

  • ICCSA (2) - Fine grained control of Security Capability and forward Security in a pairing based signature scheme
    Computational Science and Its Applications – ICCSA 2005, 2005
    Co-Authors: Dae Youb Kim, Dong Hoon Lee, Jongin Lim, Kilsoo Chun
    Abstract:

    Recently, Libert and Quisquater showed that the fast revocation method using a Security Mediator(SEM) in a mRSA can be applied to the Boneh-Franklin identity based encryption and GDH signature scheme. In this paper we propose a mediated identity based signature(mIBS) scheme which applies the SEM architecture to an identity based signature. The use of a SEM offers a number of practical advantages over current revocation techniques. The benefits include simplified validation of digital signatures, efficient and fast revocation of signature capabilities. We further propose a forward mediated signature scheme with an efficient batch verification and analyze their Security and efficiency.