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عدم کارایی ضریب همبستگی پیرسن برای سنجش امنیت رمز نگاری تصویر | ||
| پدافند الکترونیکی و سایبری | ||
| مقاله 8، دوره 6، شماره 2 - شماره پیاپی 22، مرداد 1397، صفحه 83-91 اصل مقاله (1.37 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| نویسندگان | ||
| مجید فرهادی* 1؛ جواد قاسمیان1؛ حسین سبزه پرور2 | ||
| 1دانشگاه دامغان | ||
| 2دانشگاه علم و صنعت | ||
| تاریخ دریافت: 14 مهر 1396، تاریخ بازنگری: 01 اسفند 1397، تاریخ پذیرش: 28 شهریور 1397 | ||
| چکیده | ||
| در این مقاله عدم کارایی ضریب همبستگی پیرسن برای تحلیل ارتباط بین یک تصویر و تصویر رمز‌شده آن نشان داده شد. همچنین ضریب اطلاع به‌عنوان جایگزین مناسب برای ضریب همبستگی پیرسن مورد بررسی قرار گرفته شد. هر چند این ضعف مستقل از سامانه رمز استفاده‌شده در رمزنگاری تصویر می‌باشد، ولی دو الگوریتم رمز AES اصلاح‌شده و رمز جریانی W7 برای محاسبات آزمایشگاهی استفاده و همچنین با بررسی کمی و کیفی استانداردهای دیگر تحلیل رمزنگاری تصویر نشان داده می‌شود که ضریب اطلاع در مقایسه با ضریب همبستگی پیرسن نقاط قوت و ضعف الگوریتم‌های رمزنگاری تصویر را بهتر نشان می‌دهد. | ||
| کلیدواژه‌ها | ||
| رمزنگاری؛ رمزنگاری تصویر؛ ضریب همبستگی پیرسن؛ آنتروپی؛ حداکثر نسبت سیگنال به نویز | ||
| عنوان مقاله [English] | ||
| Non-Performance of Pearson Correlation Coefficient for Evaluating Image Encryption Security | ||
| نویسندگان [English] | ||
| Majid Farhadi1؛ Javad Ghasemian1؛ Hossein Sabzehparvar2 | ||
| چکیده [English] | ||
| In this paper, we described Pearson's correlation coefficient inefficiency for analyzing the relationship between an image and encrypted one. Also, the information index was investigated as a suitable substitute for Pearson correlation coefficient. This weakness is independent of the encryption system of the image en-cryption; however, two encryption algorithms such as modified AES and W7 stream cipher have been used for laboratory calculations. In addition, by quantitative and qualitative examination of other standards for encryption analyzing of the image, the information index, in comparison with the Pearson correlation coef-ficient, shows the strengths and weaknesses of the image encryption algorithms better. | ||
| کلیدواژه‌ها [English] | ||
| Cryptography, Image Encryption, Pearson Correlation Coefficient, Entropy, Information Index | ||
| مراجع | ||
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