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Now, after this, we see the logic of was once we have devalued value there, so we go now for the

2
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check and final check is English not and English if we open up the file in notepad.

3
00:00:17,640 --> 00:00:20,840
We are having here is English chick.

4
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That's the metal that we want.

5
00:00:23,280 --> 00:00:25,590
So here we use is English metal.

6
00:00:26,040 --> 00:00:34,010
And in this we pass the value which is there from the cryptic text which we have got comma.

7
00:00:34,020 --> 00:00:41,860
We pass here the word percentage that's equal to Pasic 40.

8
00:00:42,390 --> 00:00:48,720
And in this effort, which means this particular line will check with the user to see if the decrypted

9
00:00:48,720 --> 00:00:49,900
E has been found.

10
00:00:50,400 --> 00:01:01,010
So here you print a blank line, the next you put in your C possible encryption break.

11
00:01:03,020 --> 00:01:18,480
Then bring to the value of key plus SDR Woodvale with that concatenated again, see single code holding

12
00:01:19,010 --> 00:01:27,440
single codes and the value of decrypted it that two hundred limited.

13
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Then again, let's bring the blank line and then we give your print saying we are giving the message

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00:01:34,580 --> 00:01:37,230
to enter the four done.

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Or just press and.

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00:01:45,560 --> 00:01:45,920
To

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continue and let's close this year and whatever the user type, they could be using this input.

18
00:02:02,040 --> 00:02:09,420
And then we check that if the response does not convert to Apple Dot.

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00:02:10,890 --> 00:02:22,460
Starts with you, you hear the case when we say the only descriptive text.

20
00:02:23,340 --> 00:02:26,400
And finally, one, this is done.

21
00:02:26,820 --> 00:02:28,700
We end this and we check here.

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00:02:28,740 --> 00:02:37,710
If name is equal to men, then all the men.

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00:02:39,000 --> 00:02:45,300
Now, let us save this file in the same spot when we have done all your examples.

24
00:02:46,050 --> 00:02:56,630
So hacking advanced level and here will give, say, hacking, Virginia Saiful dot fever.

25
00:02:57,900 --> 00:03:03,530
And now if we know, first of all, we have not given anything to be hacked.

26
00:03:03,540 --> 00:03:09,550
So what we would give is first thing we will do is let us open the Virginia site for Demo Oleo.

27
00:03:10,080 --> 00:03:15,680
And if we run this module, this is what is the encrypted text.

28
00:03:15,690 --> 00:03:22,430
So now we will cooperate on the same thing over here and now we would run this module.

29
00:03:22,440 --> 00:03:23,520
So let's save it.

30
00:03:25,280 --> 00:03:26,770
One thing we made a mistake.

31
00:03:27,080 --> 00:03:39,380
We have never will a state and you're just not as smart as it is, not one in which we have it means.

32
00:03:40,010 --> 00:03:50,290
And the message also we would write down over your encrypted message format, 56 days X is NZ, E,

33
00:03:50,360 --> 00:04:08,810
C, C, X, and if you then say Cucu, sorry, missed one more in me and let's see it.

34
00:04:09,410 --> 00:04:12,110
Let us try to decrypt this particular vote.

35
00:04:12,860 --> 00:04:15,770
Now, if you're not satisfied with this, we continue.

36
00:04:16,340 --> 00:04:22,630
This is what we have doki astronomy and a particular textbook and using that.

37
00:04:23,000 --> 00:04:25,110
So now we press the.

38
00:04:25,370 --> 00:04:31,970
And so that is all we have basically hacked off can using a dictionary value.

39
00:04:32,780 --> 00:04:38,180
So now if you just need to understand, whenever you run the particular values, this are just some

40
00:04:38,180 --> 00:04:44,180
keywords that as we have done and if we press enter, we can get to go along with some more keywords

41
00:04:44,420 --> 00:04:48,980
if it is not able to find it, if we give you an error message that unable to hack.

42
00:04:49,640 --> 00:04:56,090
So now over here in this particular demo now, because the source code for this program is similar to

43
00:04:56,090 --> 00:05:01,610
the previous hacking program that we have done, now, we want to be going line by line examination

44
00:05:01,610 --> 00:05:05,600
because that is not required as already we have completed part of this in the earlier one.

45
00:05:06,370 --> 00:05:13,550
So just a function that we have created in this program is your dictionary function, which basically

46
00:05:13,550 --> 00:05:18,710
attempts to use each vote in your dictionary file to decrypt the ciphertext.

47
00:05:18,890 --> 00:05:24,370
And when the decrypted text looks like an English word, according to your English module, then it

48
00:05:24,380 --> 00:05:30,080
prints the decryption and it prompts the user to quit or do so over here.

49
00:05:30,080 --> 00:05:33,020
If you just look at it, we have used your words.

50
00:05:33,020 --> 00:05:35,740
One is equal to a four one dark red line.

51
00:05:35,750 --> 00:05:41,170
So we have used red line method over here on the file object written from open.

52
00:05:41,780 --> 00:05:48,830
Now, unlike the method which returns the full content of the file as a single string, the ridgelines

53
00:05:48,830 --> 00:05:54,020
method returns a list of strings with each string as a single line from the fight.

54
00:05:54,320 --> 00:06:00,200
So since that is one word in each line of the dictionary, the word variable contains a list of every

55
00:06:00,200 --> 00:06:00,920
English word.

56
00:06:01,640 --> 00:06:07,310
The rest of the program that we have over here is similar to your transposition cipher hacking one which

57
00:06:07,310 --> 00:06:07,880
we have done.

58
00:06:08,300 --> 00:06:12,050
So this requires absolutely no values.

59
00:06:16,380 --> 00:06:23,010
It doesn't require a special understanding of the program as it is already done, all of you, to know

60
00:06:23,010 --> 00:06:28,080
that we have written a program that checks your weakness for using a dictionary attack.

61
00:06:28,380 --> 00:06:34,170
Now, let us look at how to have the beginning of Saiful, even when the key is a random group of letters

62
00:06:34,440 --> 00:06:37,680
rather than some dictionary word in the particular case.

63
00:06:38,340 --> 00:06:45,650
Now for that we will understand the concept of using the ASCII examination to find the snip.

64
00:06:46,080 --> 00:06:51,630
Now, because ASCII examination is a process that we can use to determine the length of the original

65
00:06:51,630 --> 00:06:54,440
key, which is used to encrypt the ciphertext.

66
00:06:54,660 --> 00:06:58,380
And we can then use the frequency analysis to break each of this up.

67
00:06:58,380 --> 00:07:05,430
These independent Charly's Bobridge was the first person to have broken the beginning cipher using this

68
00:07:05,430 --> 00:07:08,140
process, but he never published his results.

69
00:07:08,460 --> 00:07:15,510
Now his mother was later published by our friend Reg Pisarski at an early 20th century mathematician

70
00:07:15,510 --> 00:07:17,930
who became the namesake of the metal.

71
00:07:18,180 --> 00:07:21,840
So now let us look at the steps involved in the examination.

72
00:07:22,290 --> 00:07:26,050
First is, you need to find the repeated sequences.

73
00:07:26,580 --> 00:07:29,730
Now, let us understand this more in detail in the next edition.

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00:07:30,060 --> 00:07:31,200
That's it from the session.

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00:07:31,230 --> 00:07:32,100
Thank you very much.