Affine Cipher: what to do if the number isnt invertible over mod n?
111491
Affine Cipher Cryptanalysis
6321
How can I do a brute force (ciphertext only) attack on an CBC-encrypted message?
64163
Using Chi-Square for Vigenère Cipher
117154
Mapping of message onto elliptic curve and reverse it?
109568
For a given plaintext-ciphertext pair, how many valid AES keys are there?
72335
On-the-fly computation of AES Round Keys for decryption?
43683
Finding Inverse of 2 (mod m)
138517
Is there a cryptography algorithm that will remain safe if P=NP?
151636
Fast way to calculate n! mod m where m is prime?
114830
bit-wise operation unary ~ (invert)
120571
What does it mean $a \;\text{mod}\; 1$?
126269
Implement numbering scheme like A,B,C... AA,AB,... AAA..., similar to converting a number to radix26
151093
RSA with composite numbers
67319
How do ciphers change plaintext into numeric digits for computing?
47624
Modulo operation with negative numbers
39396
Breaking a small-scale Example Diffie-Hellman?
138241
Is there an encryption method where the order of decryption is irrelevant to the order of encryption?