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2. LightAng3l commented 12 years ago
The question is: Is your secret so important that it's worth doing math over?
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4. irishgek commented 12 years ago
Well explained , but in reality no encryption is safe other wise hackers would not exist
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8. Thanny commented 12 years ago
#4 When you see a "hacker" in a movie or TV show decrypting information, you're seeing fiction, not reality.
Unless it's incredibly weak encryption that can be brute-forced in short order, the only way a "hacker" might get access is to guess the passphrase that generated the key, which itself can be done via social engineering or brute force only for weak passwords.
Solid encryption with a strong password is unbreakable.
Unless it's incredibly weak encryption that can be brute-forced in short order, the only way a "hacker" might get access is to guess the passphrase that generated the key, which itself can be done via social engineering or brute force only for weak passwords.
Solid encryption with a strong password is unbreakable.
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11. cyberdevil commented 12 years ago
I was going to say this was real easy to understand, but that was before it started getting numerical. Really informative video regardless, enjoyed watch.
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12. mmmendal commented 12 years ago
The title is wrong. It should say something like Public Key Cryptography.
Here is a more fun explanation:
https://www.youtube.com/watch?v=_f-5aJcRNrU&feature=related
Here is a more fun explanation:
https://www.youtube.com/watch?v=_f-5aJcRNrU&feature=related
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13. Tarc commented 12 years ago
I think he failed to explain the "mod" function well enough so that it's easier to understand.
"46 mod 12" simply means the REMAINDER of the 46/12 operation, if you take how many times 12 (as a whole) goes into 46. It's three times (36) with 10 remaining.
It's much easier to understand with 10:
"<any number> mod 10" gives you a single digit, the last digit of the original number. This is the remainder of a division by 10.
"46 mod 10" = 6, because 10 goes into 46 four times, with 6 as the remainder.
An interesting example is a "x mod 2" operation.
"<any number> mod 2" results in either 1 or 0.
If it's even, the remainder will be zero, otherwise 1, hence determining whether the number is odd or even
46 mod 2 is 0 because 2 goes into 46 23 times without any remainder.
47 mod 2 is 1 because 2 goes into 47 23 times with a 1 remainder.
The result is always either 1 or 0 and one can quickly check a number's parity with a simple "mod 2" operation :p
"46 mod 12" simply means the REMAINDER of the 46/12 operation, if you take how many times 12 (as a whole) goes into 46. It's three times (36) with 10 remaining.
It's much easier to understand with 10:
"<any number> mod 10" gives you a single digit, the last digit of the original number. This is the remainder of a division by 10.
"46 mod 10" = 6, because 10 goes into 46 four times, with 6 as the remainder.
An interesting example is a "x mod 2" operation.
"<any number> mod 2" results in either 1 or 0.
If it's even, the remainder will be zero, otherwise 1, hence determining whether the number is odd or even
46 mod 2 is 0 because 2 goes into 46 23 times without any remainder.
47 mod 2 is 1 because 2 goes into 47 23 times with a 1 remainder.
The result is always either 1 or 0 and one can quickly check a number's parity with a simple "mod 2" operation :p
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15. loadrunner commented 12 years ago
If a message is really secret, meet in private, tell it, and never write the message down
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16. utalok commented 12 years ago
#14 that is a special equality for congruence relation.
http://en.wikipedia.org/wiki/Congruence_relation
http://en.wikipedia.org/wiki/Congruence_relation
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18. glassweaver commented 12 years ago
#2 this is why computer scientists get paid many times more than you to work on computer algorithms. Most people have your same mentality, yet enjoy online banking/facebook/private ims/non-public email.
+33 1. TrollyAtsam commented 12 years ago