Full Description

The purpose of the present document is to specify the rules for the management of the TETRA standard encryptionalgorithm TEA3. This algorithm is intended for air interface encryption in TETRA products.

The specification for TEA3 consists of the following three parts:

Part 1: algorithm specification;
Part 2: design conformance test data;
Part 3: algorithm input/output test data.

The procedures described in the present document apply to Parts 1 and 2 of the specifications. The Parts 1 and 2 areconfidential for each of the algorithms.

Part 3 of each of the specifications is not confidential and can be obtained directly from the TEA3 Custodian (seeclause 5.3). There are no restrictions on the distribution of this part of the specifications.

The management structure is defined in clause 4. This structure is defined in terms of the principals involved in themanagement of the TEA3 (ETSI, ETSI PROJECT TETRA, TEA3 Custodian and approved recipients) together with therelationships and interactions between them.

The procedures for delivering the TEA3 to approved recipients are defined in clause 5. This clause is supplemented byannex A which specifies the items which are to be delivered.

Clause 6 is concerned with the criteria for approving an organization for receipt of the TEA3and with theresponsibilities of an approved recipient. This clause is supplemented by annex B which contains a Confidentiality andRestricted Usage Undertaking to be signed by each approved recipient.

Clause 7 is concerned with the appointment and responsibilities of the TEA3 Custodian. Furthermore in this clause thetemporary role of the Interim Custodian is described.

Product Details

Edition: 1.1.3 Published: 08/01/2007 Number of Pages: 14 File Size: 1 file , 71 KB