حفظ محرمانگی و صحت دادهها و جلوگیری از دسترسی غیرمجاز به تصاویر پزشکی DICOM
محورهای موضوعی : مهندسی برق و کامپیوترمحمد سلطانی 1 , حسن شاکری 2 , محبوبه هوشمند 3
1 - گروه مهندسی کامپیوتر، دانشگاه آزاد اسلامی واحد مشهد
2 - گروه مهندسی کامپیوتر، واحد مشهد، دانشگاه آزاد اسلامی، مشهد، ایران
3 - گروه مهندسی کامپیوتر، دانشگاه آزاد اسلامی واحد مشهد
کلید واژه: DICOM, رمزنگاری, امنیت, اطلاعات بیومتریک بیمار, الگوریتم رمزنگاری DNA, امضای دیجیتال,
چکیده مقاله :
با گسترش فناوریهای مخابراتی و ارتباطی بهویژه ارتباطات بیسیم، رمزنگاري اطلاعات، یکی از ضرورتهای ارتباطی است. امروزه از الگوریتمهای رمزنگاری برای افزایش امنیت و جلوگیری از تغییر تصاویر پزشکی DICOM استفاده میشود. تغییر در تصاویر پزشکی DICOM موجب تشخیص نادرست پزشک از روند درمانی بیمار خواهد شد. در این مقاله نوعی از الگوریتمهای رمزنگاری ترکیبی ارائه میشود. در الگوریتم پیشنهادی از الگوریتم رمزنگاری DNA برای رمزنگاری تصاویر DICOM و از اطلاعات بیومتریک بیمار مانند تصویر اثر انگشت و یا عنبیه چشم برای افزایش حساسیت در کلیدهای استفادهشده، ساخت امضای دیجیتال و تأیید اعتبار تصاویر پزشکی DICOM استفاده میگردد. الگوریتم رمزنگاری طراحیشده در مقابل حملات Brute force مقاوم بوده و Entropy تصاویر DICOM رمزنگاریشده در آن بیشتر از 7/99 است.
With the development of telecommunication and communication technologies, especially wireless communications, information cryptography is one of the communication necessities. Today, cryptographic algorithms are used to increase security and prevent DICOM medical images from unauthorized access. It should be noted that changes in DICOM medical images will cause the doctor to misdiagnose the patient's treatment process. In this paper, a type of hybrid cryptographic algorithms is designed. In the proposed algorithm, DNA encryption algorithm is used to encrypt DICOM images and patient biometric information such as fingerprint or iris image is used to make digital signature and validate DICOM medical images. The designed encryption algorithm is resistant to brute force attacks and the entropy of the encrypted DICOM images is above 7.99.
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