Results 81 to 90 of about 12,741,900 (205)

Evaluating the Energy Costs of SHA-256 and SHA-3 (KangarooTwelve) in Resource-Constrained IoT Devices

IoT
The rapid expansion of Internet of Things (IoT) devices has heightened the demand for lightweight and secure cryptographic mechanisms suitable for resource-constrained environments.
Iain Baird, Isam Wadhaj, Baraq Ghaleb, Craig Thomson, Gordon Russell   +4 more
doaj   +1 more source

The σ0 Side Channel: Single-Trace State Recovery from NIST SP 800-90A Hash-DRBG

Transactions on Cryptographic Hardware and Embedded Systems
Hash-DRBG, NIST’s SHA-based Deterministic Random Bit Generator (DRBG), has no secret key. Its 440-bit internal state changes with every call, placing it outside the reach of classical, univariate Side-Channel Analyses (SCAs) that require a fixed secret.
Xhani Marvin Saß, Jean-Pierre Seifert
doaj   +1 more source

Searching for Messages Conforming to Arbitrary Sets of Conditions in SHA-256

, 2009
Recent progress in hash functions analysis has led to collisions on reduced versions of SHA-256. As in other hash functions, differential collision search methods of SHA-256 can be described by means of conditions on and between state and message bits.
Marko Hölbl, Christian Rechberger, Tatjana Welzer   +2 more
openaire   +3 more sources

ANALISIS INTEGRITAS DAN INVESTIGASI FORENSIK DIGITAL PADA BUKTI DOKUMEN TERENKRIPSI MENGGUNAKAN METODE HASH MD5 SHA-1 DAN SHA-256

In the era of digital transformation, electronic document exchange is highly vulnerable to manipulation and ransomware attacks. Digital forensic investigation demands a reliable and efficient integrity verification mechanism for encrypted document ...
Reja Ramdani Taufik (21700052)
core   +1 more source

Meningkatkan Sistem Keamanan Pada RFID Loker Menggunakan SHA-256 [PDF]

, 2019
Abstrak Loker merupakan tempat untuk menyimpan berbagai macam barang. Pemakaian loker pada umumnya masih menggunakan kunci konvensional yang masih memiliki banyak kekurangan seperti mudah untuk diduplikat dan mudah rusak.
SYLVIA DWI ANGGRAINI
core  

Improved homomorphic evaluation for hash function based on TFHE

Cybersecurity
Homomorphic evaluation of hash functions offers a solution to the challenge of data integrity authentication in the context of homomorphic encryption. The earliest attempt to achieve homomorphic evaluation of SHA-256 hash function was proposed by Mella ...
Benqiang Wei, Xianhui Lu
doaj   +1 more source

Relaxation of Strict Avalanche Criterion on All SHA-256 Sub-Function Combinations

Cryptography
A cryptographic hash function should dissipate patterns, such that highly related inputs are transformed into unrelated outputs. This property, known as diffusion, has been effectively measured on SHA-256 via the Strict Avalanche Criterion (SAC ...
Riley Vaughn, Mike Borowczak
doaj   +1 more source

수론학 SHA-256 Hash

"This upload contains the SHA-256 cryptographic hash of the original research manuscript titled '[수론학]' to establish proof of existence and academic priority while maintaining strict confidentiality. The full manuscript will be disclosed upon formal publication/review."
openaire   +2 more sources

On Collisions of Hash Functions Turbo SHA-2 [PDF]

, 2008
In this paper we don\u27t examine security of Turbo SHA-2 completely; we only show new collision attacks on it, with smaller complexity than it was considered by Turbo SHA-2 authors.
Vlastimil Klima
core   +1 more source

Instruction sequence expressions for the secure hash algorithm SHA-256

CoRR, 2013
The secure hash function SHA-256 is a function on bit strings. This means that its restriction to the bit strings of any given length can be computed by a finite instruction sequence that contains only instructions to set and get the content of Boolean registers, forward jump instructions, and a termination instruction.
Bergstra, J.A., Middelburg, C.A.
openaire   +4 more sources