-
Implement cryptanalytic techniques for the following classical ciphers:
* Hill or matrix cipher
* #7123 shift cipher
* #7124 affine cipher
* #15756 substitution cipher
* transposition cipher
* #723…
-
For cryptanalysis of classical ciphers, natural language-specific data like digram, trigram frequencies, indices of coincidence, and specific alphabets are needed. This ticket is collective for
* i…
-
### Detailed description
The Playfair cipher is a classical encryption technique that uses a 5x5 grid to encrypt pairs of letters (digraphs) in a message. This method helps obscure the frequency an…
-
**[ UUID ]** cf40630a-3810-4d8c-a735-6df594116042
**[ Session Name ]** Crypto 101
**[ Primary Space ]** Privacy and Security
**[ Secondary Space ]** Web Literacy
**[ Submitter's Name ]** Diane Hosf…
-
It's quite wrong to use ARC4 / Stream Cipher encryption algorithms here. I really don't remember why I had such idea in the first place. Stream ciphers are only good if the following conditions are me…
-
The example clip shows the message coming back in lower case, when it was encoded with Sentence Case?
-
If I use a cipher that requires a 5x5 keysquare with 'j' omitted, I can't encipher a message that includes the letter 'j'.
Test case:
```
>>> from pycipher import ADFGX
>>> ADFGX('phqgmeayln…
-
-
### Description
The Playfair cipher encrypts pairs of letters (digraphs), instead of single letters.
The Playfair cipher starts with creating a key table. The key table is a 5×5 grid of letters that…
-
So many servers are carelessly configured to prefer AES256. Without a long enough key exchange/certificate key, that is worthless.
Therefore, I suggest to give a warning to servers:
1. Preferring AE…