Fast mental encryption algorithm?
79642
Is there a secure cryptosystem that can be performed mentally?
12320
Equality checking using additive homomorphic encryption
141256
Is modern encryption needlessly complicated?
135719
Solving Vigenère Encryption
49230
Sharing an encrypted file between a group of people
90079
Theoretical pi-based stream cipher
97532
How to submit a new method of encryption?
68195
Is there a standard for public key encrypting and signing short messages?
157381
Selective format-compliant JPEG encryption?
21148
Encrypting a folder
84835
Can a computationally unbounded adversary break any public-key encryption scheme?
133168
One Encryption, Many Decryption Keys
84814
Two-way encryption: I need to store passwords that can be retrieved
91927
How to publish a cipher (concept)?
71821
How do I derive the time complexity of encryption and decryption based on modular arithmetic?
40397
P = NP and current cryptographic systems
114300
random access stream cipher