This video shows the process (thoroughly) of how to find the key when you don't have it. English alphabet frequencies: http://www.math.cornell.edu/~mec/2003-2004/cryptography/subs/frequencies.html Decryption (known key): http://youtu.be/oHcJ4QLiiP8 Encryption: http://youtu.be/izFivfLjD5E
Views: 136475 Theoretically
Previous video: https://youtu.be/SYEiNsYOhE8 Next video: http://youtu.be/nQGh3e_Wa4A
Views: 2601 Leandro Junes
download code: http://www.krob636.com/codesamples/xor.zip This video shows how you can make a simple 'encryption' and 'decryption' program by shifting the ASCII codes. This scrambles the text, making it unreadable for people who were not meant to see it. Note: This encryption may be all you need to conceal your information within your text; however, it can be decoded by performing frequency analysis on your cipher-text (encrypted text). Frequency analysis relies on a cipher failing to hide the fact that certain characters of the alphabet appear more often than others. Following this tutorial, I will be making a tutorial on stronger encryption schemes.
Views: 36593 KRob314to636
In this video I talk about ways to decrypt the Affine Cipher when the key is NOT known. Specifically, I go over an example of the known plaintext attack. 3^(-1) = 9 (mod 26) math worked out (Euclidean Algorithm): 1. Forwards: 26 = 3(8) + 2 3 = 2(1) + 1 2. Backwords: 1 = 3 - 2(1) 1 = 3(1) - (26 - 3(8))(1) 1 = 3(1) - 26 + 3(8) 1 + 26 = 3(9) 1 (mod 26) = 3(9) Hence 9 is the inverse. Links: -Affine Encryption: https://www.youtube.com/watch?v=_E8rSP0uAIY -Affine Decryption (Known Key): https://www.youtube.com/watch?v=XFxFPBKFVe8 -Euclidean Algorithm: https://www.youtube.com/watch?v=K5nbGbN5Trs
Views: 22823 Theoretically
Views: 1063 asionIT.com
cryptid = 1 = encrypted cryptid = 0 = decrypted Requirements: - Terminal Access - OpenSSH - Jailbroken iOS Device - Clutch - otools Music: Mt Eden and Ruby Frost - All That I had - Music rights respectfully go to them. This video is also for educational purposes only.
Views: 1093 Optimal-Tech
Download ImmediateCrypt v 1.0 : https://code.google.com/p/immediatecrypt/downloads/list MY Facebook Page - https://www.facebook.com/blacktrack4 Add me in Facebook - https://www.facebook.com/tejash1991 and Dont Forget about Subscribe.
Views: 1295 Technical Root
Namaskaar dosto ...Is video me hm baat karne wale hai information technology ke bare me ...Ye bhut hi I'm topic hai ...Is video me hm janenge information technology ke bare me aur iski kya importance hai...To video ko end tk dekhna mujhe vishwaas hai ki aapko ye video pasand aayegi..Dosto mujhe pata hai ki aap log meri voice se irritate hote ho isliye mai jald hi ek mic lene wala hoo... To dosto video ko end tak dekhna ...Thanks ... iTech Gyan itechgyan .... Like || share || support||| ITECHGYAN Follow on social media Facebook https://m.facebook.com/home.php?_rdr Follow us on Twitter https://twitter.com/imdeepakyadav18 Follow on Instagram. https://www.instagram.com/imdeepak_yadav_ Subscribe my channel.https://www.youtube.com/channel/UCx4iSYkkjvaKnp6PqSAW4SA/featured
Views: 63152 iTech Gyan