هدکشناد مولع ی
هورگ یشزومآ اهدربراک و تایضایر
نایاپ دشرا یسانشراک هجرد تفایرد یارب همان
هتشر رد یضایر ی
یدربراک شیارگ
زیلانآ
ناونع
ینتبم یراذگ سیدنا و کولب ییاجباج زا هدافتسا اب ریوصت یراگنزمر دیدج بوشآ متیروگلا راشتنارب
:امنهار داتسا دمحمرتکد براض
این
:رواشم داتسا رتکد زورپ اضر
:وجشناد یریزو نایاش
ناتسمز 1398
ناونع هدنروآ دیدپ مان و :
متیروگلا بوشآ
دیدج یراگنزمر ریوصت
اب هدافتسا زا
ییاجباج
کولب و سیدنا یراذگ ینتبم راشتنارب
/
یریزو نایاش
:امنهار داتسا رتکد
براض دمحم این
:رواشم داتسا رتکد
اضر زورپ
:عافد خیرات ناتسمز
1398
: تاحفص دادعت 85
:همان نایاپ هرامش /
اهدربراک و تایضایر هورگ
هدیکچ رد نیا نایاپ
،همان کی متیروگلا بوشآ
دیدج یراذگزمر ریوصت
هئارا یم میهد هک لماش
کی حرط میسقت ریوصت کولب و کی حرط راشتنا ینتبم رب سیدنا یکیمانید تسا
. رد
هلحرم لوا ، ریوصت یلصا هب ود کولب یواسم اب
تهج یاه یدومع ای
یقفا یواسم
میسقت یم دوش .
،سپس زا بوشآسیرتام یارب
تخاس لودج
تاصتخم تاصتخم ، X
و Y
لرتنکضیوعت هدافتسا
یم مینک . اب یوجتسج لوادج
تاصتخم و X
، Y تیعقوم لدابت
لسکیپ شزادرپ
رارق یم دریگ . زا لودج لرتنک ضیوعت یارب
لرتنک ضیوعت لسکیپ
رد
کولب یراج ای کولب رگید هدافتسا یم
دوش . رد
،تیاهن حرط سیدنا یکیمانید یارب
شخپ ریوصت هتخیمآ لامعا
یم دوش . جیاتن هیبش یزاس و هیزجت و لیلحت درکلمع ناشن
یم دهد هک متیروگلا یداهنشیپ
یاراد اب تنیما یلاع اب اهنت اب کی رود تسا .
هژاودیلک :اه
یراگنزمر
،ریوصت
،بوشآ
،تلامح
مایپ
بلاطم تسرهف
لوادج تسرهف ...
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ه
ریواصت تسرهف ...
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و
1 فده و همدقم ...
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1
2 . هنیشیپ و ینابم قیقحت
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5
2 . 1 همدقم ...
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5
2 . 2 یراگنزمر یساسا میهافم ...
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6
2 . 3 متسیس یتینما یاه ...
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8
2 . 4 یراگنزمر ...
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9
2 . 5 یراگنزمر عاونا ...
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9
2 . 5 . 1 یکیزیف یراگنزمر ...
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9
2 . 5 . 2 یضایر یراگنزمر ...
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10
2 . 5 . 3 یموتناوک یراگنزمر ...
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10
2 . 6 ناهنپ تافت یراگنزمر و یراگن
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10
2 . 7 ناهنپ یارب یلاثم یراگنزمر و یراگن
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11
2 . 8 یریوصت یراگنزمر ...
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14
2 . 9 هناسردنچ یراگنزمر یا
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15
2 . 10 – تیب حطس یناکم هزوح رد اه ...
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17
2 . 11 رایعم ریوصت یراگنزمر متیروگلا کی یسررب یاه ...
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19
2 . 11 . 1 تینما ...
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19
2 . 11 . 2 تعرس ...
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2 . 11 . 3 تیب هتشر لوبق ...
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2 . 11 . 4 تیب شزادرپ ...
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2 . 11 . 5 یگدرشف نازیم رب ریثات ...
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2 . 12 ریوصت یراگنزمر دیاس ...
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20
2 . 13 یدنب عمج ...
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23
3 هتفای و جیاتن شهوژپ یاه
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24
3 . 1 همدقم ...
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24
3 . 2 شور متیروگلارب ینتبم ریوصت یراگنزمر یارب هئارا یاه ...DNA
26
3 . 2 . 1 دیلک هعسوترب ینتبم ریوصت یراگنزمر ...AES
...
26
3 . 2 . 2 ریوصت یراگنزمر یراذگزمر ساساربRGB
بوشآ تشاگن و DNA 27
3 . 2 . 3 کینکت :یسررب کی رب ینتبم یراگنزمر یاه
...DNA 27
3 . 2 . 4 رب ینتبم یراگنزمر دیلک دیلوت یفداصت شور و تشگیاج زا هدافتسا ابDNA
...
28
3 . 2 . 5 یراذگزمررب ینتبم یگنر ریوصت یراگنزمر کی یور رب تینما زیلانآ بوشآ تشاگن وDNA
....
29
3 . 2 . 6 متیروگلا یراذگزمر و بوشآ رب ینتبم یحطس دنچ ریوص یراگنزمر
DNA ...
30
3 . 2 . 7 رب شهوژپ متیروگلا کی
بیکرت رب ینتبم ریوصت یراگنزمر تشاگن
یراگنزمر و بوشآ یاه
... DNA ...
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32
3 . 2 . 8 یراگنزمر زا هدافتسا اب ریوصت یراگنزمر یبیکرت شور لیه زمر متیروگلا وDNA
TF ...
34
3 . 2 . 9 کیتسجل تشاگن ...
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35
3 . 4 نیاس تشاگن ...
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3 . 5 تشاگن Chebyshev ...
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38
3 . 6 بوشآ متسیس کی دیدج
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3 . 7 متسیس راتخاس ...
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3 دیدج بوشآ متسیس یبایزرا . ...
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3 . 8 . 1 کیتسجل تشاگن کیتسجل–
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3 . 8 . 2 نیاس تشاگن نیاس–
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3 . 8 . 3 تشاگن Chebyshev Chebyshev -
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3 . 8 . 4 دیدج بوشآ متسیس تاعلاطا یپورتنآ ...
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3 . 9 ریوصت یراگنزمر متیروگلا ...
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3 . 10 اگنزمر دنیارف یر
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3 . 11 ییاشگزمر دنیارف ...
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3 . 13 دیلک یتینما یاضف ...
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3 . 14 یرامآ لیلحت ...
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3 . 14 . 1 مارگوتسیه لیلحت و هیزجت ...
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3 . 14 . 2 رواجم لسکیپ یگتسبمه ...
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3 . 14 . 4 هداد نداد تسد زا و زیون هلمح اه
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3 . 15 یسررب و ثحب ...
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3 . 16 عمج یدنب ...
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4 هتفای و جیاتن شهوژپ یاه
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53
4 . 1 همدقم ...
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53
4 . 2 لوادج راتخاس ...
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53
3 . 4 هدش یزیر مه رد ریوصت کولب ...
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4 . 4 راشتنا تلاح ...
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58
4 . 5 ییاشگزمر دنیآرف ...
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4 . 6 درکمع لیلحت و هیزجت و یبرجت جیاتن ...
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61
4 . 6 . 1 یتینما یدیلک یاضف ...
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61
4 . 6 . 2 مارگوتسیه زیلانآ ...
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63
4 . 7 یگتسبمه لیلحت و هیزجت ...
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64
4 . 8 تاعلاطا یپورتنآ لیلحت و هیزجت ...
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4 . 9 یدیلک تیساسح شیامزا ...
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66
4 . 10 یقارتفا هلمح ...
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67
4 . 11 کیسلاک تلامج عاونا ...
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68
4 . 12 هسیاقم و تعرس لیلحت و هیزجت ...
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71
4 . 13 یریگ هجیتن ...
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73
عجارم ...
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75
عبانم
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Title and Author A novel chaotic image encryption algorithm using block scrambling and dynamic index based diffusion/ Shayan Vaziri
Supervisor: Dr. Mohammad Zarebniay Advisor Dr. Reza Parvaz
Graduation date: 2020.00.00
Nubmer of pages: 85 Abstract
In this thesis, we propose a novel chaotic image encryption algorithm which involves a block image scrambling scheme and a new dynamic index based diffusion scheme.
Firstly, the original image is divided into two equal blocks by vertical or horizontal directions. Then, we use the chaos matrix to construct X coordinate, Y coordinate and swapping control tables. By searching the X coordinate and Y coordinate tables, the swapping position of the processing pixel is located. The swapping control table is used to control the swapping of the pixel in the current block or the other block.
Finally, the dynamic index scheme is applied to the diffusing of the scrambled image.
The simulation results and performance analysis show that the proposed algorithm has an excellent safety performance with only one round.
Keywords:Image encryption, Chaos, Block scrambling, Dynamic index
University of Mohaghegh Ardabili Faculty of Sciences
Thesis submitted in partial fulfillment for the degree of M. Sc. in Subject
Title:
A novel chaotic image encryption algorithm using block scrambling and dynamic index based diffusion
Supervisor:
Dr. Mohammad Zarebniay
Advisor:
Dr. Reza Parvaz By:
Shayan Vaziri
2020
