Title: [Information] Ancient Cryptography Post by: Krislaw on September 18, 2020, 05:12:56 PM I’ve been interested in reading about cryptocurrency and want to learn cryptography but it’s too complicated for me to learn the cryptography especially the algorithms and the other terms that is unfamiliar for me, so I started in the beginning of cryptography which is the ancient times and it’s very interesting and very easy to understand, so I just want to share the things that I discover and it might interest the newbies and other members to read and learn about cryptography.
Cryptography
There are many primitive and other techniques that had been used by different civilizations. 1. The Caesar Shift Cipher https://i.imgur.com/2Vk40U6.png
Quote Plain: ABCDEFGHIJKLMNOPQRSTUVWXYZ Cipher using right rotation: DEFGHIJkLMNOPQRSTUVWXYZABC Cipher using left rotation: XYZABCDEFGHIJKLMNOPQRSTUVW Example: (With a shift of +3) Plain Text: Quote We're no strangers to love Cipher Text:You know the rules and so do I Quote Tb'ob kl pqoxkdbop ql ilsb Vlr hklt qeb oribp xka pl al F
Example: (With a shift of -1) Plain Text: Quote A full commitment's what I'm thinking of Cipher Text: You wouldn't get this from any other guy Quote Z etkk bnllhsldms'r vgzs H'l sghmjhmf ne Xnt vntkcm's fds sghr eqnl zmx nsgdq ftx 2. Alberti-Vigenere Cipher https://i.imgur.com/94h09QW.jpg
Quote Stabilis: ABCDEFGILMNOPQRSTVXZ1234 Mobilis: (random characters)
Example:(with Stabilis: ABCDEFGILMNOPQRSTVXZ1234 & Mobilis: c&bmdgpfznjyutoskerlhaiw) Plain Text: Quote I just wanna tell you how Im feeling Cipher Text:Gotta make you understand Quote 1 munp ufbhs petu ccg fzk Ia cpmunmi Gzpbf hzjj yzg &laduztsbe 3. Scytale https://i.imgur.com/Mk4k8ce.png
Example: (7 turns) Plain Text: Quote Never gonna give you up Cipher Text:Never gonna let you down Quote Nnyva denoe lova ure we Rendered:gugtn ripoy gvN noo eenu Quote | N | e | v | e | r | g | o | | n | n | a | g | i | v | e | | y | o | u | u | p | N | e | | v | e | r | g | o | n | n | | a | l | e | t | y | o | u | | d | o | w | n | | | | 4.The Polybius Square https://i.imgur.com/DNTTFnT.jpghttps://i.imgur.com/DNTTFnT.jpg
[b]Example (Let's use the figure above but without the J)[/b] Plain Text: Quote Never gonna run around and desert you Cipher Text:Never gonna make you cry Quote 3315511542 2234333311 424533 114234453314 113314 1415431542 44543445 3315511542 2234333311 32112515 543445 134254 5. Pigpen Cipher https://i.imgur.com/6a4I1oD.png
Example: (Standard) Plain Text: Quote Never gonna say goodbye Cipher Text:Never gonna tell a lie and hurt you Quote https://i.imgur.com/WHbLWrZ.png https://economictimes.indiatimes.com/definition/cryptography https://usa.kaspersky.com/resource-center/definitions/what-is-cryptography https://www.geeksforgeeks.org/cryptography-and-its-types/ https://www.cs.mcgill.ca/~rwest/wikispeedia/wpcd/wp/c/Caesar_cipher.htm#:~:text=The%20Caesar%20cipher%20is%20named%20after%20Julius%20Caesar%2C%20who%2C%20according,word%20could%20be%20made%20out. http://www.icits2015.net/ancient-cryptography-history/#:~:text=The%20word%20cryptography%20is%20comes,from%20one%20place%20to%20another. https://en.wikipedia.org/wiki/Alberti_cipher_disk https://www.cryptool.org/en/cto-ciphers/scytale https://www.dcode.fr/scytale-cipher http://cryptogramma.com/cryptogramma/How_it_works.html https://interestingengineering.com/11-cryptographic-methods-that-marked-history-from-the-caesar-cipher-to-enigma-code-and-beyond https://crypto.interactive-maths.com/polybius-square.html Title: Re: [Information] Ancient Cryptography Post by: hatshepsut93 on September 20, 2020, 05:52:30 PM I’ve been interested in reading about cryptocurrency and want to learn cryptography but it’s too complicated for me to learn the cryptography especially the algorithms and the other terms that is unfamiliar for me, so I started in the beginning of cryptography which is the ancient times and it’s very interesting and very easy to understand, so I just want to share the things that I discover and it might interest the newbies and other members to read and learn about cryptography. You can continue learning about cryptography by learning how to break these historical ciphers. I suggest you to check cryptopals (https://cryptopals.com/), their first chapters teaches you how to do it without holding your hand all the time, so you can actually learn by solving the problem. And the following chapters will teach you about modern cryptography. Title: Re: [Information] Ancient Cryptography Post by: Nellayar on September 21, 2020, 07:34:31 AM Actually I already made this cipher information. Here is the link where I also posted it in this section, https://bitcointalk.org/index.php?topic=5249739.msg54464190#msg54464190 (https://bitcointalk.org/index.php?topic=5249739.msg54464190#msg54464190)
Anyway, it is good that you become interested about Ancient Cryptography or Ciphers. It may unlock our own knowledge about how can we hid and secure our passwords against a potential hacking. In this case, we can make a more secured password that cannot break easily. Imagine, if you can encrypt a certain message into different ciphers then no one can easily break it. But, cipher is easily be broken in our generation due to the fact that they can be easily decrypted using digital apps. That is why hashes are more secured and used in cryptocurrency because hash are more safe and unbreakable algorithms. Title: Re: [Information] Ancient Cryptography Post by: -CryptoViking- on September 22, 2020, 06:05:45 AM I also have one which we used in boy scouts :D
Example: Quote Me love you long time BTC! Encrypted: Quote 42 lov2 yo9 lo61 t742 BTC A bit too easy to crack from this postion, but it was awesome when I was a kid :D Title: Re: [Information] Ancient Cryptography Post by: seoincorporation on September 22, 2020, 09:14:27 PM Great article mate. And it's important to mention, one of the main uses the cryptography has was for the war. In the first and second world war the armies need a way to send messages in a secure way, and cryptography was the right way to do it. That was why it gets to the complexity we see today with the sha* and other cryptosystems.
Title: Re: [Information] Ancient Cryptography Post by: erikoy on September 22, 2020, 10:12:11 PM I also have one which we used in boy scouts :D You sure have a great time when you are in boys scouts.
Example: Quote Me love you long time BTC! Encrypted: Quote 42 lov2 yo9 lo61 t742 BTC A bit too easy to crack from this postion, but it was awesome when I was a kid :D Yeah it looks really fun for the kids to break down codes given to them or message that is being encrypted by codes and let them crack it as their challenge. This is fun to watch especially in doing some adventure, trecking and other fun activitiew giving instructions through codes. I think of some use of this one to be applied in my kids at home so that they will.not get bored too tha instead of bringing them to nice place, we can do it in our home. Nice share info. Title: Re: [Information] Ancient Cryptography Post by: Harlot on September 22, 2020, 11:28:36 PM Cryptography wasn't the only thing people use to hide message in ancient times, I also recall that during these time as well steganography was also used. Steganography is simply hiding an information by putting it on other content like books, songs, or art basically hiding these messages in plain sight that only the other person who was meant to read it will be the one to understand it. Both Steganography and Cryptography I think during that time was used since privacy and safety was really important during that time that's why they have created various techniques on hiding information.
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