One-time pad encryption of ASCII characters
134171
How to attack a "many-time pad" based on what happens when an ASCII space is XORed with a letter?
157381
Selective format-compliant JPEG encryption?
54124
How to generate a ciphertext independently decodable with multiple keys?
157957
How can I encrypt JavaScript code so that it's not decryptable?
135381
Special characters in AES Encryption Key
79726
Inverse public-key encryption
133525
Easily reversible hash functions as a method of data transmission
117232
Reduction from signatures to encryption?
100730
Is there a length-preserving encryption scheme?
25964
How to read a single character from the user?
87118
EncryptSymmetric AMPScript AES
90079
Theoretical pi-based stream cipher
8674
Hash-based asymmetrical encryption (not digital signature) schemes?
76954
Are there any cryptographic algorithms, which lets the user apply some modifications on the encoded data, without decoding it?
41235
How can I easily encrypt a file?
42064
How do you Encrypt and Decrypt a PHP String?
22599
Using a Hash as a secure PRNG