Vigenere cipher with a shared resource
40477
Is a book cipher provably secure?
117232
Reduction from signatures to encryption?
135486
Can Fully Homomorphic Encryption do comparisons?
157381
Selective format-compliant JPEG encryption?
66789
Coefficients in Shamir's Secret Sharing Scheme
133867
Security proofs for CBC mode
140207
How to perform frequency analysis of a substitution cipher using a Base64 alphabet
49053
Knowing the key, how do I decrypt the affine cipher?
55689
Why are the Davies-Meyer and Miyaguchi-Preneel constructions secure?
37467
With sufficient randomness, is XOR an acceptable mechanism for encrypting?
100640
K out of N encryption
43473
Turning a cipher into a hashing function
35531
Block cipher fixed points (plaintext equal to ciphertext)
135593
Decrypting Ciphertext with partial Key Fragment using LFSR and Berlekamp-Massey
35371
The pseudoness of pseudorandom number generators
64578
How can an encryption scheme be indistinguishable with multiple messages but vulnerable to an adaptive chosen-plaintext attack?
11379
How does asymmetric encryption work?