scholarly journals Dumbo, Jumbo, and Delirium: Parallel Authenticated Encryption for the Lightweight Circus

2020 ◽  
pp. 5-30
Author(s):  
Tim Beyne ◽  
Yu Long Chen ◽  
Christoph Dobraunig ◽  
Bart Mennink
Keyword(s):  
The Internet ◽  
Authenticated Encryption ◽  
Small State ◽  
Resource Constrained ◽  
Direct Communication ◽  
Encryption Algorithms ◽  
High Level ◽  
State Size ◽  
Resource Constrained Devices ◽  
Constrained Devices

With the trend to connect more and more devices to the Internet, authenticated encryption has become a major backbone in securing the communication, not only between these devices and servers, but also the direct communication among these devices. Most authenticated encryption algorithms used in practice are developed to perform well on modern high-end devices, but are not necessarily suited for usage on resource-constrained devices. We present a lightweight authenticated encryption scheme, called Elephant. Elephant retains the advantages of GCM such as parallelism, but is tailored to the needs of resource-constrained devices. The two smallest instances of Elephant, Dumbo and Jumbo, are based on the 160-bit and 176-bit Spongent permutation, respectively, and are particularly suited for hardware; the largest instance of Elephant, Delirium, is based on 200-bit Keccak and is developed towards software use. All three instances are parallelizable, have a small state size while achieving a high level of security, and are constant time by design.

scholarly journals Ascon v1.2: Lightweight Authenticated Encryption and Hashing

2021 ◽  
Vol 34 (3) ◽  
Author(s):  
Christoph Dobraunig ◽  
Maria Eichlseder ◽  
Florian Mendel ◽  
Martin Schläffer
Keyword(s):  
Hash Function ◽  
Information Infrastructure ◽  
Output Function ◽  
Authenticated Encryption ◽  
Resource Constrained ◽  
Caesar Competition ◽  
Encryption Algorithms ◽  
Basic Need ◽  
Resource Constrained Devices ◽  
Constrained Devices

AbstractAuthenticated encryption satisfies the basic need for authenticity and confidentiality in our information infrastructure. In this paper, we provide the specification of Ascon-128 and Ascon-128a. Both authenticated encryption algorithms provide efficient authenticated encryption on resource-constrained devices and on high-end CPUs. Furthermore, they have been selected as the “primary choice” for lightweight authenticated encryption in the final portfolio of the CAESAR competition. In addition, we specify the hash function Ascon-Hash, and the extendable output function Ascon-Xof. Moreover, we complement the specification by providing a detailed overview of existing cryptanalysis and implementation results.

scholarly journals Permutation-Based Lightweight Authenticated Cipher with Beyond Conventional Security

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Ping Zhang
Keyword(s):  
Hardware Implementation ◽  
Authenticated Encryption ◽  
Resource Constrained ◽  
Large Capacity ◽  
Efficiency Optimization ◽  
Security Proof ◽  
Almost All ◽  
Resource Constrained Devices ◽  
Constrained Devices

Lightweight authenticated ciphers are specially designed as authenticated encryption (AE) schemes for resource-constrained devices. Permutation-based lightweight authenticated ciphers have gained more attention in recent years. However, almost all of permutation-based lightweight AE schemes only ensure conventional security, i.e., about c / 2 -bit security, where c is the capacity of the permutation. This may be vulnerable for an insufficiently large capacity. This paper focuses on the stronger security guarantee and the better efficiency optimization of permutation-based lightweight AE schemes. On the basis of APE series (APE, APE R I , APE O W , and APE C A ), we propose a new improved permutation-based lightweight online AE mode APE + which supports beyond conventional security and concurrent absorption. Then, we derive a simple security proof and prove that APE + enjoys at most about min r , c -bit security, where r is the rate of the permutation. Finally, we discuss the properties of APE + on the hardware implementation.

scholarly journals Enterprise Security for the Internet of Things (IoT): Lightweight Bootstrapping with EAP-NOOB

Sensors ◽  
2020 ◽  
Vol 20 (21) ◽  
pp. 6101
Author(s):  
Aleksi Peltonen ◽  
Eduardo Inglés ◽  
Sampsa Latvala ◽  
Dan Garcia-Carrillo ◽  
Mohit Sethi ◽  
...  
Keyword(s):  
Authentication Protocol ◽  
The Internet ◽  
Resource Constrained ◽  
Window Blinds ◽  
Enterprise Security ◽  
Implementation Experience ◽  
The Internet Of Things ◽  
Extensible Authentication Protocol ◽  
Resource Constrained Devices ◽  
Constrained Devices

The emergence of radio technologies, such as Zigbee, Z-Wave, and Bluetooth Mesh, has transformed simple physical devices into smart objects that can understand and react to their environment. Devices, such as light bulbs, door locks, and window blinds, can now be connected to, and remotely controlled from, the Internet. Given the resource-constrained nature of many of these devices, they have typically relied on the use of universal global shared secrets for the initial bootstrapping and commissioning phase. Such a scheme has obvious security weaknesses and it also creates undesirable walled-gardens where devices of one ecosystem do not inter-operate with the other. In this paper, we investigate whether the standard Extensible Authentication Protocol (EAP) framework can be used for secure bootstrapping of resource-constrained devices. EAP naturally provides the benefits of per-device individual credentials, straightforward revocation, and isolation of devices. In particular, we look at the Nimble out-of-band authentication for EAP (EAP-NOOB) as a candidate EAP authentication method. EAP-NOOB greatly simplifies deployment of such devices as it does not require them to be pre-provisioned with credentials of any sort. Based on our implementation experience on off-the-shelf hardware, we demonstrate that lightweight EAP-NOOB is indeed a way forward to securely bootstrap such devices.

scholarly journals PRISEC: Comparison of Symmetric Key Algorithms for IoT Devices

Sensors ◽  
2019 ◽  
Vol 19 (19) ◽  
pp. 4312 ◽  
Author(s):  
Daniel A. F. Saraiva ◽  
Valderi Reis Quietinho Leithardt ◽  
Diandre de Paula ◽  
André Sales Mendes ◽  
Gabriel Villarrubia González ◽  
...  
Keyword(s):  
Internet Of Things ◽  
Power Consumption ◽  
Advanced Encryption Standard ◽  
The Internet ◽  
Secure Communications ◽  
Resource Constrained ◽  
Symmetric Key ◽  
Iot Devices ◽  
Resource Constrained Devices ◽  
Constrained Devices

With the growing number of heterogeneous resource-constrained devices connected to the Internet, it becomes increasingly challenging to secure the privacy and protection of data. Strong but efficient cryptography solutions must be employed to deal with this problem, along with methods to standardize secure communications between these devices. The PRISEC module of the UbiPri middleware has this goal. In this work, we present the performance of the AES (Advanced Encryption Standard), RC6 (Rivest Cipher 6), Twofish, SPECK128, LEA, and ChaCha20-Poly1305 algorithms in Internet of Things (IoT) devices, measuring their execution times, throughput, and power consumption, with the main goal of determining which symmetric key ciphers are best to be applied in PRISEC. We verify that ChaCha20-Poly1305 is a very good option for resource constrained devices, along with the lightweight block ciphers SPECK128 and LEA.

Management of resource constrained devices in the internet of things

2012 ◽  
Vol 50 (12) ◽  
pp. 144-149 ◽  
Author(s):  
Anuj Sehgal ◽  
Vladislav Perelman ◽  
Siarhei Kuryla ◽  
Jurgen Schonwalder
Keyword(s):  
Internet Of Things ◽  
The Internet ◽  
Resource Constrained ◽  
The Internet Of Things ◽  
Resource Constrained Devices ◽  
Constrained Devices
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