6 results sorted by ID
Possible spell-corrected query: soc
Hardware Implementation of SpoC-128
Ambati Sathvik, Tirunagari Rahul, Anubhab Baksi, Vikramkumar Pudi
Secret-key cryptography
In this work, we present a hardware implementation of the lightweight Authenticated Encryption with Associated Data (AEAD) SpoC-128. Designed by AlTawy, Gong, He, Jha, Mandal, Nandi and Rohit; SpoC-128 was submitted to the Lightweight Cryptography (LWC) competition being organised by the National Institute of Standards and Technology (NIST) of the United States Department of Commerce. Our implementation follows the Application Programming Interface (API) specified by the cryptographic...
Improved Attacks on sLiSCP Permutation and Tight Bound of Limited Birthday Distinguishers
Akinori Hosoyamada, María Naya-Plasencia, Yu Sasaki
Secret-key cryptography
Limited birthday distinguishers (LBDs) are widely used tools for the cryptanalysis of cryptographic permutations.
In this paper we propose LBDs on several variants of the sLiSCP permutation family that are building blocks of two round 2 candidates of the NIST lightweight standardization process: SPIX and SpoC. We improve the number of steps with respect to the previously known best results, that used rebound attack. We improve the techniques used for solving the middle part, called inbound,...
Cryptanalysis of the permutation based algorithm SpoC
Liliya Kraleva, Raluca Posteuca, Vincent Rijmen
Secret-key cryptography
In this paper we present an analysis of the SpoC cipher, a second round candidate of the NIST Lightweight Crypto Standardization process. First we present a differential analysis on the sLiSCP-light permutation, a core element of SpoC. Then we propose a series of attacks on both versions of SpoC, namely round-reduced differential tag forgery and message recovery attacks, as well as a time-memory trade-off key-recovery attack on the full round version of Spoc-64. Finally, we present an...
A Detailed Report on the Overhead of Hardware APIs for Lightweight Cryptography
Patrick Karl, Michael Tempelmeier
Implementation
The "Competition for Authenticated Encryption: Security, Applicability, and Robustness" (CAESAR) was the first cryptographic
competition that required designers to use a mandatory hardware API for their implementations.
Recently, a similar hardware API for the NIST Lightweight Cryptography (LWC) project was proposed.
Both APIs feature an accompanying development package to help designers implementing the API.
In this paper, we have an in-depth look on these packages.
We analyze the features...
On the Security of Sponge-type Authenticated Encryption Modes
Bishwajit Chakraborty, Ashwin Jha, Mridul Nandi
Secret-key cryptography
The sponge duplex is a popular mode of operation for constructing authenticated encryption schemes. In fact, one can assess the popularity of this mode from the fact that around $ 25 $ out of the $ 56 $ round 1 submissions to the ongoing NIST lightweight cryptography (LwC) standardization process are based on this mode. Among these, $14$ sponge-type constructions are selected for the second round consisting of $32$ submissions. In this paper, we generalize the duplexing interface of the...
Hardware Implementations of NIST Lightweight Cryptographic Candidates: A First Look
Behnaz Rezvani, Flora Coleman, Sachin Sachin, William Diehl
Implementation
Achieving security in the Internet of Things (IoT) is challenging. The need for lightweight yet robust cryptographic solutions suitable for the IoT calls for improved design and implementation of constructs such as authenticated encryption with associated data (AEAD) which can ensure confidentiality, integrity, and authenticity of data in one algorithm. The U.S. National Institute of Standards and Technology (NIST) has embarked on a multi-year effort called the lightweight cryptography...
In this work, we present a hardware implementation of the lightweight Authenticated Encryption with Associated Data (AEAD) SpoC-128. Designed by AlTawy, Gong, He, Jha, Mandal, Nandi and Rohit; SpoC-128 was submitted to the Lightweight Cryptography (LWC) competition being organised by the National Institute of Standards and Technology (NIST) of the United States Department of Commerce. Our implementation follows the Application Programming Interface (API) specified by the cryptographic...
Limited birthday distinguishers (LBDs) are widely used tools for the cryptanalysis of cryptographic permutations. In this paper we propose LBDs on several variants of the sLiSCP permutation family that are building blocks of two round 2 candidates of the NIST lightweight standardization process: SPIX and SpoC. We improve the number of steps with respect to the previously known best results, that used rebound attack. We improve the techniques used for solving the middle part, called inbound,...
In this paper we present an analysis of the SpoC cipher, a second round candidate of the NIST Lightweight Crypto Standardization process. First we present a differential analysis on the sLiSCP-light permutation, a core element of SpoC. Then we propose a series of attacks on both versions of SpoC, namely round-reduced differential tag forgery and message recovery attacks, as well as a time-memory trade-off key-recovery attack on the full round version of Spoc-64. Finally, we present an...
The "Competition for Authenticated Encryption: Security, Applicability, and Robustness" (CAESAR) was the first cryptographic competition that required designers to use a mandatory hardware API for their implementations. Recently, a similar hardware API for the NIST Lightweight Cryptography (LWC) project was proposed. Both APIs feature an accompanying development package to help designers implementing the API. In this paper, we have an in-depth look on these packages. We analyze the features...
The sponge duplex is a popular mode of operation for constructing authenticated encryption schemes. In fact, one can assess the popularity of this mode from the fact that around $ 25 $ out of the $ 56 $ round 1 submissions to the ongoing NIST lightweight cryptography (LwC) standardization process are based on this mode. Among these, $14$ sponge-type constructions are selected for the second round consisting of $32$ submissions. In this paper, we generalize the duplexing interface of the...
Achieving security in the Internet of Things (IoT) is challenging. The need for lightweight yet robust cryptographic solutions suitable for the IoT calls for improved design and implementation of constructs such as authenticated encryption with associated data (AEAD) which can ensure confidentiality, integrity, and authenticity of data in one algorithm. The U.S. National Institute of Standards and Technology (NIST) has embarked on a multi-year effort called the lightweight cryptography...