Open AccessАНАЛІЗ ЧАСОВИХ ПОКАЗНИКІВ ШИФРУВАННЯ/ДЕШИФРУВАННЯ ФАЙЛІВ БАЗ ДАНИХ МЕДИЧНИХ ІНФОРМАЦІЙНИХ СИСТЕМ
Author(s) -
Ye. B. Lopin
Publication year - 2014
Publication title -
medična ìnformatika ta ìnženerìâ
Language(s) - English
Resource type - Journals
eISSN - 1997-7468
pISSN - 1996-1960
DOI - 10.11603/mie.1996-1960.2013.4.2255
Subject(s) - computer science , pentium , encryption , operating system , byte , reading (process) , disk encryption , parallel computing , on the fly encryption , political science , law
In the article on the specific example the results of studies medical information systems databases files encryption/decryptiontime have been presented. The present studies are performed using the developed three fundamentally different algorithms, that include Blowfish encryption algorithm as a part. The studies were performed using a specially developed (in the programming environment Delphi 7) computer program "Generators" (author's title) and two computers having obsolete configuration and assembled with the Intel Core 2 Duo E8400 processor and the DualCore Intel Pentium E2180 processor. The studies have established that the encryption/decryption of files using the first developed algorithm during execution of which multiple access to the hard drive for reading/writing of 8-byte information blocks of is implemented, takes much longer time (about 10 times) than the encryption/decryption using the second and third algorithms during execution of which access to the hard drive for a file reading/writing is performed once.