Triplex: an Efficient and One-Pass Leakage-Resistant Mode of Operation
This paper introduces and analyzes Triplex, a leakage-resistant mode of operation based on Tweakable Block Ciphers (TBCs) with 2n-bit tweaks. Triplex enjoys beyond-birthday ciphertext integrity in the presence of encryption and decryption leakage in a liberal model where all intermediate computatio...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Ruhr-Universität Bochum
2022-08-01
|
| Series: | Transactions on Cryptographic Hardware and Embedded Systems |
| Subjects: | |
| Online Access: | https://ojs-dev.ub.rub.de/index.php/TCHES/article/view/9816 |
| _version_ | 1797690045881122816 |
|---|---|
| author | Yaobin Shen Thomas Peters François-Xavier Standaert Gaëtan Cassiers Corentin Verhamme |
| author_facet | Yaobin Shen Thomas Peters François-Xavier Standaert Gaëtan Cassiers Corentin Verhamme |
| author_sort | Yaobin Shen |
| collection | DOAJ |
| description |
This paper introduces and analyzes Triplex, a leakage-resistant mode of operation based on Tweakable Block Ciphers (TBCs) with 2n-bit tweaks. Triplex enjoys beyond-birthday ciphertext integrity in the presence of encryption and decryption leakage in a liberal model where all intermediate computations are leaked in full and only two TBC calls operating a long-term secret are protected with implementationlevel countermeasures. It provides beyond-birthday confidentiality guarantees without leakage, and standard confidentiality guarantees with leakage for a single-pass mode embedding a re-keying process for the bulk of its computations (i.e., birthday confidentiality with encryption leakage under a bounded leakage assumption). Triplex improves leakage-resistant modes of operation relying on TBCs with n-bit tweaks when instantiated with large-tweak TBCs like Deoxys-TBC (a CAESAR competition laureate) or Skinny (used by the Romulus finalist of the NIST lightweight crypto competition). Its security guarantees are maintained in the multi-user setting.
|
| first_indexed | 2024-03-12T01:53:55Z |
| format | Article |
| id | doaj.art-14dbd7b01ef442a194858e376f38386c |
| institution | Directory Open Access Journal |
| issn | 2569-2925 |
| language | English |
| last_indexed | 2024-03-12T01:53:55Z |
| publishDate | 2022-08-01 |
| publisher | Ruhr-Universität Bochum |
| record_format | Article |
| series | Transactions on Cryptographic Hardware and Embedded Systems |
| spelling | doaj.art-14dbd7b01ef442a194858e376f38386c2023-09-08T07:01:11ZengRuhr-Universität BochumTransactions on Cryptographic Hardware and Embedded Systems2569-29252022-08-012022410.46586/tches.v2022.i4.135-162Triplex: an Efficient and One-Pass Leakage-Resistant Mode of OperationYaobin Shen0Thomas Peters1François-Xavier Standaert2Gaëtan Cassiers3Corentin Verhamme4UCLouvain, ICTEAM, Crypto Group, Louvain-la-Neuve, BelgiumUCLouvain, ICTEAM, Crypto Group, Louvain-la-Neuve, BelgiumUCLouvain, ICTEAM, Crypto Group, Louvain-la-Neuve, BelgiumUCLouvain, ICTEAM, Crypto Group, Louvain-la-Neuve, BelgiumUCLouvain, ICTEAM, Crypto Group, Louvain-la-Neuve, Belgium This paper introduces and analyzes Triplex, a leakage-resistant mode of operation based on Tweakable Block Ciphers (TBCs) with 2n-bit tweaks. Triplex enjoys beyond-birthday ciphertext integrity in the presence of encryption and decryption leakage in a liberal model where all intermediate computations are leaked in full and only two TBC calls operating a long-term secret are protected with implementationlevel countermeasures. It provides beyond-birthday confidentiality guarantees without leakage, and standard confidentiality guarantees with leakage for a single-pass mode embedding a re-keying process for the bulk of its computations (i.e., birthday confidentiality with encryption leakage under a bounded leakage assumption). Triplex improves leakage-resistant modes of operation relying on TBCs with n-bit tweaks when instantiated with large-tweak TBCs like Deoxys-TBC (a CAESAR competition laureate) or Skinny (used by the Romulus finalist of the NIST lightweight crypto competition). Its security guarantees are maintained in the multi-user setting. https://ojs-dev.ub.rub.de/index.php/TCHES/article/view/9816Leakage-ResistanceAuthenticated EncryptionSingle-Pass Modes |
| spellingShingle | Yaobin Shen Thomas Peters François-Xavier Standaert Gaëtan Cassiers Corentin Verhamme Triplex: an Efficient and One-Pass Leakage-Resistant Mode of Operation Transactions on Cryptographic Hardware and Embedded Systems Leakage-Resistance Authenticated Encryption Single-Pass Modes |
| title | Triplex: an Efficient and One-Pass Leakage-Resistant Mode of Operation |
| title_full | Triplex: an Efficient and One-Pass Leakage-Resistant Mode of Operation |
| title_fullStr | Triplex: an Efficient and One-Pass Leakage-Resistant Mode of Operation |
| title_full_unstemmed | Triplex: an Efficient and One-Pass Leakage-Resistant Mode of Operation |
| title_short | Triplex: an Efficient and One-Pass Leakage-Resistant Mode of Operation |
| title_sort | triplex an efficient and one pass leakage resistant mode of operation |
| topic | Leakage-Resistance Authenticated Encryption Single-Pass Modes |
| url | https://ojs-dev.ub.rub.de/index.php/TCHES/article/view/9816 |
| work_keys_str_mv | AT yaobinshen triplexanefficientandonepassleakageresistantmodeofoperation AT thomaspeters triplexanefficientandonepassleakageresistantmodeofoperation AT francoisxavierstandaert triplexanefficientandonepassleakageresistantmodeofoperation AT gaetancassiers triplexanefficientandonepassleakageresistantmodeofoperation AT corentinverhamme triplexanefficientandonepassleakageresistantmodeofoperation |