GROUP KEY ESTABLISHMENT Sample Clauses

GROUP KEY ESTABLISHMENT. The tree-based group Diffie–Xxxxxxx (TGDH) protocol [5] is used to establish the group key in a dynamic peer group. Each member maintains a set of keys, which are arranged in a hierarchical binary tree. A node ID v is assigned to every tree node. For a given node v a secret (or private) key KV and a blinded (or public) key BKV are associated. All arithmetic operations are performed in a cyclic group of prime order p with the generator α. Therefore, the blinded key of node v can be generated by BKV = αKV mod p (1) Each leaf node in the tree corresponds to the individual secret and blinded keys of a group member. Every member holds all the secret keys along its key path starting from its associated leaf node up to the root node. Therefore, the secret key held by the root node is shared by all the members and is regarded as the group key. The node ID of the root node is set to 0. Each nonleaf node v consists of two child nodes whose node ID’s are given by 2v+1 and 2v+2. Based on the Diffie–Xxxxxxx protocol, the secret key of a nonleaf node can be generated by the secret key of one child node of v and the blinded key of another child node of v. KV = (BK2v+1 )K2V +2 mod p = (BK2v+2 )K2V +1 mod p = α K2V +1 K2V +2 mod p (2) Unlike the keys at non leaf nodes, the secret key at a leaf node is selected by its corresponding group member through a secure pseudo random number generator. Since the blinded keys are publicly known, every member can compute the keys along its key path to the root node based on its individual secret key. 3 4 M3 5 6 M6
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GROUP KEY ESTABLISHMENT. Modeling

Related to GROUP KEY ESTABLISHMENT

  • PERMANENT ESTABLISHMENT 1. For the purposes of this Agreement, the term "permanent establishment" means a fixed place of business through which the business of an enterprise is wholly or partly carried on. 2. The term "permanent establishment" includes especially: (a) a place of management; (b) a branch; (c) an office; (d) a factory; (e) a workshop, and (f) a mine, an oil or gas well, a quarry or any other place of extraction of natural resources. 3. The term "permanent establishment" also includes: (a) a building site, a construction, installation or assembly project, or supervisory activities in connection therewith, but only where such site, project or activities last more than 12 months; (b) the furnishing of services, including consultancy services, by an enterprise of a Contracting State through employees or other personnel in the other Contracting State for a period or periods aggregating more than 120 days within any twelve-month period. 4. Notwithstanding the preceding provisions of this Article, the term "permanent establishment" shall be deemed not to include: (a) the use of facilities solely for the purpose of storage, display or delivery of goods or merchandise belonging to the enterprise; (b) the maintenance of a stock of goods or merchandise belonging to the enterprise solely for the purpose of storage, display or delivery; (c) the maintenance of a stock of goods or merchandise belonging to the enterprise solely for the purpose of processing by another enterprise; (d) the maintenance of a fixed place of business solely for the purpose of purchasing goods or merchandise or of collecting information, for the enterprise; (e) the maintenance of a fixed place of business solely for the purpose of carrying on, for the enterprise, any other activity of a preparatory or auxiliary character; (f) the maintenance of a fixed place of business solely for any combination of activities mentioned in sub-paragraphs (a) to (e), provided that the overall activity of the fixed place of business resulting from this combination is of a preparatory or auxiliary character. 5. Notwithstanding the provisions of paragraphs 1 and 2, where a person -- other than an agent of an independent status to whom paragraph 6 applies -- is acting on behalf of an enterprise and has, and habitually exercises, in a Contracting State an authority to conclude contracts in the name of the enterprise, that enterprise shall be deemed to have a permanent establishment in that State in respect of any activities which that person undertakes for the enterprise, unless the activities of such person are limited to those mentioned in paragraph 4 which, if exercised through a fixed place of business, would not make this fixed place of business a permanent establishment under the provisions of that paragraph. 6. An enterprise shall not be deemed to have a permanent establishment in a Contracting State merely because it carries on business in that State through a broker, general commission agent or any other agent of an independent status, provided that such persons are acting in the ordinary course of their business. 7. The fact that a company which is a resident of a Contracting State controls or is controlled by a company which is a resident of the other Contracting State, or which carries on business in that other State (whether through a permanent establishment or otherwise), shall not of itself constitute either company a permanent establishment of the other.

  • Establishment On and after the Closing Date, the Indenture Trustee will maintain the Bank Accounts established by the Servicer under Section 4.1 of the Sale and Servicing Agreement.

  • Establishment of Segregated Account Upon receipt of Proper Instructions, the Custodian shall establish and maintain on its books a segregated account or accounts for and on behalf of a Portfolio, into which account or accounts may be transferred cash and/or securities or other assets of such Portfolio, including securities maintained by the Custodian in a Securities System pursuant to Section 2.22(a) hereof or an Eligible Securities Depository pursuant to Section 2.22(b) hereof, said account or accounts to be maintained: (a) for the purposes set forth in Sections 2.09, 2.10 and 2.11 hereof; (b) for the purposes of compliance by the Portfolio with the procedures required by Investment Company Act Release No. 10666, or any subsequent release or releases of the SEC or SEC rules or regulations relating to the maintenance of segregated accounts by registered investment companies; or (c) for such other purposes as set forth, from time to time, in Special Instructions.

  • Establishment of Collateral Account The Securities Intermediary hereby confirms that: (a) the Securities Intermediary has established the Collateral Account; (b) the Collateral Account is a securities account; (c) subject to the terms of this Agreement, the Securities Intermediary shall identify in its records the Collateral Agent as the entitlement holder entitled to exercise the rights that comprise any financial asset credited to the Collateral Account; (d) all property delivered to the Securities Intermediary pursuant to this Agreement, including any Applicable Ownership Interests in the Treasury Portfolio (as specified in clause (i) of the definition thereof) or Treasury Securities and the Permitted Investments, will be credited promptly to the Collateral Account; and (e) all securities or other property underlying any financial assets credited to the Collateral Account shall be (i) registered in the name of the Purchase Contract Agent and indorsed to the Securities Intermediary or in blank, (ii) registered in the name of the Securities Intermediary or (iii) credited to another securities account maintained in the name of the Securities Intermediary. In no case will any financial asset credited to the Collateral Account be registered in the name of the Purchase Contract Agent (in its capacity as such) or any Holder or specially indorsed to the Purchase Contract Agent (in its capacity as such) or any Holder, unless such financial asset has been further indorsed to the Securities Intermediary or in blank.

  • Establishment of Deposit Account The Deposit Account shall be established and maintained pursuant to Section 5.01 of the Sale and Servicing Agreement. The Deposit Account shall be under the sole dominion and control of the Indenture Trustee for the benefit of Noteholders and the Certificateholders, as applicable in accordance with the Sale and Servicing Agreement.

  • Establishment of Collection Account (a) The Servicer, on behalf of the Issuer and the Indenture Trustee, shall establish the Collection Account in the name of the Indenture Trustee for the benefit of the Securityholders. The Collection Account shall be an Eligible Deposit Account initially established with the Indenture Trustee and maintained with the Indenture Trustee. Except as otherwise provided in this Agreement, in the event that the Collection Account maintained with the Indenture Trustee is no longer an Eligible Deposit Account, then the Servicer shall, with the Indenture Trustee’s assistance, as necessary, use reasonable efforts to cause the Collection Account to be moved to an Eligible Institution within thirty days. (b) For so long as the Collection Account is maintained as an Eligible Deposit Account, all amounts held in these accounts shall, to the extent permitted by applicable laws, rules and regulations, be invested, as directed in writing by the Servicer, in Eligible Investments; otherwise such amounts shall be maintained in cash. Earnings on investment of funds in these accounts (net of losses and investment expenses) shall be paid to the Servicer on each Payment Date as servicing compensation, and any losses and investment expenses shall be charged against the funds on deposit in the related account. (c) For so long as Deutsche Bank Trust Company Americas is the Indenture Trustee, the Collection Account shall be maintained with Deutsche Bank Trust Company Americas as an Eligible Deposit Account. In the event that the long-term debt rating of the Indenture Trustee does not satisfy clause (a) of the definition of Eligible Deposit Account, the Servicer shall, with the assistance of the Indenture Trustee, as necessary, use reasonable efforts to cause the Collection Account to be moved to an Eligible Institution or an account otherwise satisfying the requirements of clause (b) of the definition of Eligible Deposit Account (which may be an account with the Indenture Trustee) within thirty days. (d) The Indenture Trustee shall transfer all amounts remaining on deposit in the Collection Account on the Payment Date on which the Notes of all Classes have been paid in full (or substantially all of the Trust Estate is otherwise released from the lien of the Indenture) to the Issuer for the benefit of the Certificateholder, and to take all necessary or appropriate actions to transfer all of its right, title and interest in the Collection Account, all funds or investments held or to be held therein and all proceeds thereof, to the Issuer for the benefit of the Certificateholder, subject to the limitations set forth in the Indenture with respect to amounts held for payment to the Noteholders that do not promptly deliver a Note for payment on such Payment Date. (e) With respect to the Collection Account and all property held therein, the Issuer agrees, by its acceptance hereof that, on the terms and conditions set forth in the Indenture, for so long as Notes of any Class remain outstanding, the Indenture Trustee shall possess all right, title and interest therein (excluding interest or investment income thereon payable to the Servicer), and that such account shall be under the sole dominion and control of the Indenture Trustee for the benefit of the Noteholders and the Certificateholder, as set forth in the Indenture. The parties hereto agree that the Servicer shall have the power, revocable by the Indenture Trustee upon an Event of Default resulting in an acceleration of the Notes or liquidation of the Trust Estate or by the Owner Trustee with the consent of the Indenture Trustee, to instruct the Indenture Trustee to make withdrawals and payments from the Collection Account for the purpose of permitting the Servicer, Indenture Trustee or the Owner Trustee to carry out its respective duties hereunder or under the Indenture or the Trust Agreement, as the case may be.

  • Establishment of Collateral Accounts Securities Intermediary acknowledges and agrees that: (i) it has established and is maintaining on its books and records the accounts identified on the attached Schedule 1 (each such account, together with any replacements thereof or substitutions therefor, the “Collateral Account” and such accounts, collectively, the “Collateral Accounts”) in the name of the Borrower; (ii) each Collateral Account is a “securities account” (within the meaning of Section 8-501(a) of the UCC) in respect of which Securities Intermediary is a “securities intermediary” (within the meaning of Section 8-102(a)(14) of the UCC and, with respect to any Book-Entry Security, within the meaning of Federal Book-Entry Regulations) and the Security Agent is the “entitlement holder” (within the meaning of Section 8-102(a)(7) of the UCC); provided, however, that if, notwithstanding the intention of the parties hereto, all or any portion of the Collateral Account is determined to be a “deposit account” (within the meaning of Section 9-102 of the UCC) rather than a “securities account,” then the Securities Intermediary represents, warrants, covenants and agrees that it is a “bank” (as defined in Section 9-102(a)(8) of the UCC) and will treat the Borrower as its customer (within the meaning of Section 9-104(a)(3) of the UCC) with respect to the Collateral Accounts (or portion thereof); (iii) all property delivered, or to be delivered, to Securities Intermediary pursuant to this Agreement is, and will be, promptly credited to the Collateral Accounts; (iv) it does not know of any claim to or interest in any Collateral Account or any assets or funds therein, except for claims and interests of the parties to this Agreement as set forth herein; and (v) it shall not change the name or account number of any Collateral Account without the prior written consent of the Security Agent. Except as provided in Section 2(b), Securities Intermediary agrees that it shall not take “entitlement orders” (as defined in Section 8-102(a)(8) of the UCC) or “instructions” (within the meaning of Section 9-104(a)(2) of the UCC) with respect to the Collateral Accounts or any assets or funds therein from any Person other than the Security Agent.

  • Establishment of Portfolios and Classes (a) The Trust shall consist of one or more separate and distinct Portfolios, each with an unlimited number of Shares unless otherwise specified. The Trustees hereby establish and designate the Portfolios listed on Schedule A attached hereto and made a part hereof ("Schedule A"). Each additional Portfolio shall be established by the adoption of one or more resolutions by the Trustees. Each such resolution is hereby incorporated herein by this reference and made a part of the Governing Instrument whether or not expressly stated in such resolution, and shall be effective upon the occurrence of both (i) the date stated therein (or, if no such date is stated, upon the date of such adoption) and (ii) the execution of an amendment either to this Agreement or to Schedule A hereto establishing and designating such additional Portfolio or Portfolios. The Shares of each Portfolio shall have the relative rights and preferences provided for herein and such rights and preferences as may be designated by the Trustees in any amendment or modification to the Trust's Governing Instrument. The Trust shall maintain separate and distinct records of each Portfolio and shall hold and account for the assets belonging thereto separately from the other Trust Property and the assets belonging to any other Portfolio. Each Share of a Portfolio shall represent an equal beneficial interest in the net assets belonging to that Portfolio, except to the extent of Class Expenses and other expenses separately allocated to Classes thereof (if any Classes have been established) as permitted herein. (b) The Trustees may establish one or more Classes of Shares of any Portfolio, each with an unlimited number of Shares unless otherwise specified. Each Class so established and designated shall represent a Proportionate Interest (as defined in Section 2.5(d)) in the net assets belonging to that Portfolio and shall have identical voting, dividend, liquidation, and other rights and be subject to the same terms and conditions, except that (1) Class Expenses allocated to a Class for which such expenses were incurred shall be borne solely by that Class, (2) other expenses, costs, charges, and reserves allocated to a Class in accordance with Section 2.5(e) may be borne solely by that Class, provided that the allocation of such other expenses, costs, charges, and reserves is not specifically required to be set forth in a plan adopted by the Trust pursuant to Rule 18f-3 under the Act, (3) dividends declared and payable to a Class pursuant to Section 7.1 shall reflect the items separately allocated thereto pursuant to the preceding clauses, (4) each Class may have separate rights to convert to another Class, exchange rights, and similar rights, each as determined by the Trustees, and (5) subject to Section 2.6(c), each Class may have exclusive voting rights with respect to matters affecting only that Class. The Trustees hereby establish for each Portfolio listed on Schedule A the Classes listed thereon. Each additional Class for any or all Portfolios shall be established by the adoption of one or more resolutions by the Trustees. Each such resolution is hereby incorporated herein by this reference and made a part of the Governing Instrument whether or not expressly stated in such resolution, and shall be effective upon the occurrence of both (i) the date stated therein (or, if no such date is stated, upon the date of such adoption) and (ii) the execution of an amendment to this Agreement establishing and designating such additional Class or Classes.

  • Establishment of the Trust The Depositor does hereby establish, pursuant to the further provisions of this Agreement and the laws of the State of New York, an express trust to be known, for convenience, as “Deutsche Alt-A Securities Mortgage Loan Trust, Series 2006-AR5” and does hereby appoint HSBC Bank USA, National Association as Trustee in accordance with the provisions of this Agreement.

  • Establishment of Account (a) The Fund hereby appoints the Custodian as the custodian of all Securities and cash at any time delivered to the Custodian to be held under this Agreement. The Custodian hereby accepts such appointment and agrees to establish and maintain one or more accounts for each Series in which the Custodian will hold Securities and cash as provided herein. Such accounts (each, an “Account,” and collectively, the “Accounts”) shall be in the name of the Fund and Series, if any. (b) The Custodian may from time to time establish on its books and records such sub-accounts within each Account as the Fund and the Custodian may agree upon (each a “Special Account”), and the Custodian shall reflect therein such assets as the Fund may specify in Instructions. (c) The Custodian may from time to time establish pursuant to a written agreement with and for the benefit of a broker, dealer, future commission merchant or other third party identified in Instructions such accounts on such terms and conditions as the Fund and the Custodian shall agree, and the Custodian shall transfer to such account such Securities and money as the Fund may specify in Instructions.

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