Results 231 to 240 of about 19,427 (285)
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2008
PKI has a history of very poor support for revocation. It is both too expensive and too coarse grained, so that private keys which are compromised or otherwise become invalid remain in use long after they should have been revoked. This paper considers Instant Revocation, or revocations which take place within a second or two. A new revocation scheme,
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PKI has a history of very poor support for revocation. It is both too expensive and too coarse grained, so that private keys which are compromised or otherwise become invalid remain in use long after they should have been revoked. This paper considers Instant Revocation, or revocations which take place within a second or two. A new revocation scheme,
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Studia Logica, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Journal of Computer Science and Technology, 2007
Group signature allows the anonymity of a real signer in a group to be revoked by a trusted party called group manager. It also gives the group manager the absolute power of controlling the formation of the group. Ring signature, on the other hand, does not allow anyone to revoke the signer anonymity, while allowing the real signer to form a group ...
Dennis Y. W. Liu +4 more
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Group signature allows the anonymity of a real signer in a group to be revoked by a trusted party called group manager. It also gives the group manager the absolute power of controlling the formation of the group. Ring signature, on the other hand, does not allow anyone to revoke the signer anonymity, while allowing the real signer to form a group ...
Dennis Y. W. Liu +4 more
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Administrative Revocation: License Suspension and Revocation
1986A driver license is a privilege, and motorists are expected to drive safely. When a state has evidence that a driver has committed a hazardous or dangerous act - such as driving while intoxicated - it has the authority and responsibility to revoke the license to drive.
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2020
This chapter considers the concept of revocation. Revocation is literally the action of ‘calling back’, in the sense of rescinding or annulling. It is a fundamental characteristic of wills that they are revocable wholly or partially at any time before a testator’s death. The chapter also considers topics related to revocation: alterations, revival, and
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This chapter considers the concept of revocation. Revocation is literally the action of ‘calling back’, in the sense of rescinding or annulling. It is a fundamental characteristic of wills that they are revocable wholly or partially at any time before a testator’s death. The chapter also considers topics related to revocation: alterations, revival, and
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Proceedings of the 21st International Middleware Conference, 2020
We propose Knob, a practical active revocation scheme allowing to efficiently revoke users' access to encrypted data banks stored in public clouds. Knob leverages Trusted Execution Environments and All-or-Nothing Data Transforms in order to re-encrypt only small portions of the content directly in the cloud, using a scalable swarm of re-encryption ...
Stefan Contiu +2 more
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We propose Knob, a practical active revocation scheme allowing to efficiently revoke users' access to encrypted data banks stored in public clouds. Knob leverages Trusted Execution Environments and All-or-Nothing Data Transforms in order to re-encrypt only small portions of the content directly in the cloud, using a scalable swarm of re-encryption ...
Stefan Contiu +2 more
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Delegating Revocations and Authorizations
2008Delegation models based on role-based access control (RBAC) management have been known as flexible and efficient access management for data sharing on distributed environment. Delegation revocations are a significant functionality for the models in distributed environment when the delegated roles or permissions are required to get back.
Hua Wang 0002, Jinli Cao
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2009
A Trusted Platform Module (TPM) offers a number of basic security services which can be used to build complex trusted applications. One of the main functionalities of a TPM is the provision of a protected storage, including access management for cryptographic keys.
Stefan Katzenbeisser 0001 +2 more
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A Trusted Platform Module (TPM) offers a number of basic security services which can be used to build complex trusted applications. One of the main functionalities of a TPM is the provision of a protected storage, including access management for cryptographic keys.
Stefan Katzenbeisser 0001 +2 more
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On certificate revocation and validation
1998Cryptosystems need to check whether the certificates and digital signatures they are given are valid before accepting them. In addition to providing cryptographically secure validity information, certificate revocation systems must satisfy a variety of challenging technical requirements.
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A model of certificate revocation
Proceedings 15th Annual Computer Security Applications Conference (ACSAC'99), 2003This paper presents a model for the distribution of revocation information using certificate revocation lists (CRLs). This model is used to highlight inefficiencies in the "traditional" method of distributing certificate status information using CRLs. Two alternative CRL-based revocation distribution mechanisms, over-issued CRLs and segmented CRLs, are
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