Quantum Secure Blind Decryption with Two Users

We propose two types of protocols for quantum secure blind decryption, involving two users and servers. User 1 holds the encrypted ciphertext. The servers store several indexed keys including the key encrypting the ciphertext. User 2 aims to obtain the decrypted text. The protocols are designed t...

Sample SecurID Token Emulator with Token Secret Import

Sample SecurID Token Emulator with Token Secret Import We have performed some cryptoanalysis and let's just say we do have grounds to believe that this algorithm is easily breakable. Once again, security of the cipher should be based entirely on the secrecy of the key, not the algorithm. Least...