Repeated Encryption using same/different Encryption systems
123293
Does encrypting twice using the same block cipher produce a security weakness?
12035
XOR cipher with fixed key and known relation among plaintexts
137207
Two different keys decrypting same content
36116
What is the best way to put a backdoor in an encryption system?
40642
Using same modulus for RSA
29867
Using the same secret key for encryption and authentication in a Encrypt-then-MAC scheme
44290
How can I use asymmetric encryption, such as RSA, to encrypt an arbitrary length of plaintext?
111070
Is it safe to use the hash of the data as the key to encrypt them?
133168
One Encryption, Many Decryption Keys
40397
P = NP and current cryptographic systems
133525
Easily reversible hash functions as a method of data transmission
141356
How to encrypt files using a cross-platform solution?
103141
Cryptographic hash where the hashing function input is similar to the result
141256
Is modern encryption needlessly complicated?
15207
Can insecure algorithms be combined to form a secure algorithm?
52063
Why is hybrid encryption more effective than other encryption scheme?
60340
PGP encrypt single message for multiple recipients