Substitution Cipher vs. Permutation Cipher
111966
The exact difference between a permutation and a substitution
68793
Worst-case number of transpositions needed to generate a permutation
134597
How do substution-permutation networks work?
137471
Permutations of a string with duplicate characters
22078
Advantages of combined PRNGs
124935
AES-CBC ciphertext manipulation with known IV and plaintext!
67877
Difference between encoding and encryption
139568
Can double-encrypting be easier to break then either algorithm on its own?
25744
Multiplication in Permutation Groups Written in Cyclic Notation
90079
Theoretical pi-based stream cipher
82535
Is a small size block cipher usable?
41888
How to prove that permutation and substitution ciphers satisfy H(X) = H(Y) in Shanon Entropy?
103287
AES-128. Do there exist two different keys for a pair (text, encrypted text)?
122054
SHA-3 Sub-Function Reversibility Clarification
125811
Recognizing special cases of a defined function for permuted arguments
146272
Why is double encryption that's equivalent to single encryption no better than single encryption?
62196
Statistical saturation attack on block ciphers