Results 111 to 120 of about 12,741,900 (205)

An improved SHA-256 based agent system for web content update management

open access: yes, 2011
博士在網際網路的環境只使用固定密碼作為驗證身分的機制,會讓系統與使用者暴露在危險中,因此我們以時戳(Time Stamp)結合了SHA-256將其改良為Time Stamp SHA-256(TSSHA-256)可以用來產生動態密碼(one-time password,OTP),透過OTP可以加強出版網頁時的安全性,而主機端的代理人系統,會在更新網頁資料前先透過TSSHA-256來驗證所接收資料的完整性,當資料通過檢測才會讓網頁內容出版到網站主機的相關目錄,並且在更新網頁之後再次使用 TSSHA ...
林坤億; Lin, Kun-Yi
core  

Analysis of simplified variants of SHA-256 ∗ Krystian Matusiewicz 1, Josef Pieprzyk 1,

open access: yes, 2008
: In this paper we analyse the role of some of the building blocks of SHA-256. We show that the disturbance-correction strategy is applicable to the SHA-256 architecture and we prove that functions Σ, σ are vital for the security of SHA-256 by showing ...
Norbert Pramstaller   +2 more
core  

Ramanujan expander networks for authenticated grayscale image encryption. [PDF]

open access: yesPLoS One
Razzaque A   +4 more
europepmc   +1 more source

A High-Performance Multimem SHA-256 Accelerator for Society 5.0

open access: yes
The development of a low-cost high-performance secure hash algorithm (SHA)-256 accelerator has recently received extensive interest because SHA-256 is important in widespread applications, such as cryptocurrencies, data security, data integrity, and ...
Tran, Thi Hong   +2 more
core   +1 more source

Advanced security in fog environments using encryption and adaptive user activity tracking. [PDF]

open access: yesSci Rep
Rai HM   +5 more
europepmc   +1 more source

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