Foreword
1 Scope
2 Normative references
3 Definitions
  3.1 Definitions from ISO 7498-2
      3.1.1 data integrity
      3.1.2 security policy
  3.2 Definitions from ISO/IEC 9797-1
      3.2.1 Message Authentication Code (MAC)
  3.3 Definitions from ISO/IEC 9798-1
      3.3.1 cryptographic check function
  3.4 Definitions from ISO/IEC 10181-4
      3.4.1 evidence generator
  3.5 Definitions from ISO/IEC 11770-1
      3.5.1 key
      3.5.2 secret key
  3.6 Definitions from ISO/IEC 18014
      3.6.1 time stamp
      3.6.2 time-stamping authority
  3.7 Definitions from ISO/IEC 13888-1
      3.7.1 data storage
      3.7.2 delivery authority
      3.7.3 distinguishing identifier
      3.7.4 evidence
      3.7.5 evidence requester
      3.7.6 imprint
      3.7.7 non-repudiation exchange
      3.7.8 non-repudiation of origin
      3.7.9 non-repudiation of delivery
      3.7.10 non-repudiation of submission
      3.7.11 non-repudiation of transport
      3.7.12 non-repudiation policy
      3.7.13 non-repudiation token
      3.7.14 notary (notary authority)
      3.7.15 NRDT
      3.7.16 NROT
      3.7.17 NRST
      3.7.18 NRTT
      3.7.19 originator
      3.7.20 proof
      3.7.21 recipient
      3.7.22 secure envelope (SENV)
      3.7.23 trusted third party
      3.7.24 trusted time-stamp
4 Notation and Abbreviations
  4.1 Notation
      4.1.1 Notation from ISO/IEC 13888-1
      4.1.2 Notation unique for the purposes of this
             part of ISO/IEC 13888
5 Symbols (and abbreviated terms)
6 Requirements
7 Secure envelopes
8 Generation and verification of non-repudiation
  tokens
  8.1 Creation of tokens by the TTP
  8.2 Data items used in the non-repudiation
      mechanisms
      8.2.1 Data items used in secure envelopes
      8.2.2 Data items used in non-repudiation tokens
  8.3 Non-repudiation tokens
      8.3.1 Non-repudiation of origin token
      8.3.2 Non-repudiation of delivery token
      8.3.3 Time stamping token
  8.4 Verification of tokens by the TTP
      8.4.1 Verification process
      8.4.2 On-line verification of the token
      8.4.3 Table of tokens
9 Specific non-repudiation mechanisms
  9.1 Mechanisms for non-repudiation
  9.2 Mechanism for non-repudiation of origin
      9.2.1 Token Generation
             9.2.1.1 Transaction 1 - between originator
                     A and TTP
             9.2.1.2 Transaction 2 - from originator A
                     to recipient B
             9.2.1.3 Transaction 3 - between originator
                     A and TTP
      9.2.2 Token Verification
  9.3 Mechanism for non-repudiation of delivery
      9.3.1 Token generation
             9.3.1.1 Transaction 1 - between recipient B
                     and TT
             9.3.1.2 Transaction 2 - from originator to
                     recipient B
             9.3.1.3 Transaction 3 - between recipient B
                     and originator A
      9.3.2 Token Verification
  9.4 Mechanism for obtaining a time stamping token
Annex A (informative)
  A1 Examples of specific non-repudiation mechanisms
      A1.1 Examples of non-repudiation mechanisms
            of origin and delivery
  A2 Mechanism M1: Mandatory NRO, optional NRD
      A2.1 Transaction 1 - between originator A and TTP
      A2.2 Transaction 2 - from originator A to recipient B
      A2.3 Transaction 3 - between recipient B and TTP
      A2.4 Transaction 4 - from recipient B to originator A
      A2.5 Transaction 5 - between originator A and recipient
            TTP
  A3 Mechanisms M2: Mandatory NRO, mandatory NDR
      A3.1 Transaction 1 - between originator A and TTP
      A3.2 Trasnaction 2 - from originator A to recipient B
      A3.3 Transaction 3 - between recipient B and TTP
      A3.4 Transaction 4 - between TTP and originator A
  A4 Mechanism M3: Mandatory NRO and NRD with
      intermediary TTP
      A4.1 Transaction 1 - between originator A and TTP
      A4.2 Transaction 2 - from TTP to recipient B
      A4.3 Transaction 3 - between recipient B and TTP
      A4.4 Transaction 4 - between TTP and originator A
Bibliography