Security Notions Clause Samples

Security Notions. This section introduces different security notions. Most of it is standard and it is taken from the literature. It first recalls the notion of indistinguishability un- der chosen ciphertext attacks for an encryption scheme and the notion of strong existential unforgeability under chosen message attacks for a signature scheme. Then we propose a new security definition for ETP protocols that capture real- istic threats that have not been considered in previous security definitions from the literature.
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Security Notions i i j i j
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Security Notions. A,B Freshness. The notion of freshness is used to identify the session keys about which F ought not to know anything because F has not revealed any oracles that have accepted the key and has not corrupted i ∈ {A, B}. An oracle Πs is said fresh if: – Π A,B s A,B has accepted a session key sk and Πs has not been asked for a Reveal query, A – No Corrupt query has been asked before a query of the form Send(Πs , ∗) B or Send(Πs , ∗).
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Security Notions. The usual security model [25] built on prior work from the two-party setting [26] [27] has been widely used to analyze group key agreement protocol. In this model, several queries are available to the attacker to model his capability. We will use the model to discuss the security of our proposed protocol. We assume that the users in set S = {A, B, C} will negotiate a session key using the key agreement protocol. An attacker can make following three queries. By accessing to the following oracles, ▇▇▇▇▇ can get, modify and replay the messages transmitted over the Internet. ⎯ Send (U , m) query. ▇▇▇▇▇ issues a query on (U , m) . ▇▇▇▇▇ is allowed to modify or replay any message he got from the answer of the query in active attack model.
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Related to Security Notions

  • Security Procedures The Fund shall comply with data access operating standards and procedures and with user identification or other password control requirements and other security procedures as may be issued from time to time by State Street for use of the System on a remote basis and to access the Data Access Services. The Fund shall have access only to the Fund Data and authorized transactions agreed upon from time to time by State Street and, upon notice from State Street, the Fund shall discontinue remote use of the System and access to Data Access Services for any security reasons cited by State Street; provided, that, in such event, State Street shall, for a period not less than 180 days (or such other shorter period specified by the Fund) after such discontinuance, assume responsibility to provide accounting services under the terms of the Custodian Agreement.

  • Security Measures Lessee hereby acknowledges that the rental payable to Lessor hereunder does not include the cost of guard service or other security measures, and that Lessor shall have no obligation whatsoever to provide same. Lessee assumes all responsibility for the protection of the Premises, Lessee, its agents and invitees and their property from the acts of third parties.

  • Security Protocols Both parties agree to maintain security protocols that meet industry standards in the transfer or transmission of any data, including ensuring that data may only be viewed or accessed by parties legally allowed to do so. Provider shall maintain all data obtained or generated pursuant to the Service Agreement in a secure digital environment and not copy, reproduce, or transmit data obtained pursuant to the Service Agreement, except as necessary to fulfill the purpose of data requests by LEA.

  • Security Incidents 11.1 Includes identification, managing and agreed reporting procedures for actual or suspected security breaches.

  • Notice to Account Debtors Lender may, at any time after an Event of Default, notify the account debtors and obligors of any accounts, chattel paper, negotiable instruments or other evidences of indebtedness to Borrower included in the Property to pay Lender directly. Borrower shall at any time or from time to time upon the request of Lender provide to Lender a current list of all such account debtors and obligors and their addresses.