Results 101 to 110 of about 12,741,900 (205)

Semantically conditioned hyperchaotic encryption for medical images: U-Net and SHA-256 key binding against chosen plaintext attacks

Cybersecurity
Existing hyperchaotic medical image encryption schemes derive all chaotic initial conditions solely from statistical features of deep-learning-segmented anatomical regions, creating a structural chosen-plaintext-attack (CPA) vulnerability: images with ...
Imane Arioua, Said Hraoui, Hakim El Fadili   +2 more
doaj   +1 more source

Parallelizing SHA-256, SHA-1 and MD5 and AES on the cell broadband engine [PDF]

, 2010
The Cell BE Architecture connects a Power processor with several synergistic processing units via a high-speed bus, allowing parallel processing on a chip.
Allen, Bruce, Garfinkel, Simson, Canright, David, Dinolt, George   +3 more
core  

Runtime Cryptographic Evidence to Bounded Assurance Verdicts: Deterministic Conformance and Policy Appraisal for SHA-256 and AES-256-GCM

Computers
Cryptographic inventories and runtime detection identify cryptographic use but do not establish implementation conformance or policy satisfaction.
Robert Campbell
doaj   +1 more source

A New Image Encryption Algorithm Based on Chaos and Secure Hash SHA-256. [PDF]

Entropy (Basel), 2018
Zhu S, Zhu C, Wang W.
europepmc   +1 more source

Σχεδιασμός και υλοποίηση μηχανισμού πολλαπλών συναρτήσεων κατακερματισμού (Sha-256, Sha-512 και Multi-mode)

, 2012
Στην παρούσα διπλωματική εργασία θα μελετήσουμε τις διαδικασίες της κρυπτογράφησης και της αποκρυπτογράφησης. Θα αναφερθούμε στους λόγους που τις έκαναν δημοφιλείς σε πολλά πεδία εφαρμογής (μαθηματικά, εμπόριο, στρατός κ.α).
Μάλτη, Παναγιώτα
core  

Implementation Analysis of AES-256 and SHA-256 in EOF Steganography

The rapid advancement of information technology has increased the demand for data security mechanisms that not only provide strong cryptographic protection but also conceal the existence of sensitive information.
Rini Indrayani
core   +1 more source

A j-lanes tree hashing mode and j-lanes SHA-256 [PDF]

, 2012
j-lanes hashing is a tree mode that splits an input message to j slices, computes j independent digests of each slice, and outputs the hash value of their concatenation.
Shay Gueron
core  

Implementasi algoritma SHA-256 menggunakan visual studio dan openSSL

Keamanan jaringan merupakan hal yang sangat penting karena akses internet terbuka bagi siapapun. Setiap data dapat diakses diinternet dengan sangat mudah terutama data yang sifatnya terbuka dan umum.
Arif Funnatiq
core  

Programmatic SAT for SHA-256 Collision Attack [PDF]

Cryptographic hash functions play a crucial role in ensuring data security, generating fixed-length hashes from variable-length inputs. The hash function SHA-256 is trusted for data security due to its resilience after over twenty years of intense ...
Alamgir, Al Nahiyan Bin
core   +1 more source

AAMB Hypothesis timestamp — NEJM MS#26-01325 (SHA-256)

Public registration time-stamping the SHA-256 hash of a system-generated submission PDF documenting the AAMB ...
Dahua Fan
core   +1 more source