Count Chu

We suppose that there is an algorithm A that can always deduce LSB of plaintext from ciphertext. We describe the statement as below formula,...

The Stanford on-line course, Cryptography I , describes that the following 1-bit PRP is secure, X = {0, 1} E: E x X ---> Y E (k, x) =...

The Stanford on-line course, Cryptography I , describes that the following 1-bit PRP is secure. X = {0, 1} E: K x X ---> Y E(k, x) = ...

Is double AES more secure? The answer is YES, but it is not much more secure as you expect. Do you remember why to use 3DES instead of dou...

The theorem, Luby-Rackoff'85, describes that, 3-round Feistel is a secure PRP if f is a secure PRF. I have many questions, Why 3-ro...

We are confused about CMAC and CCM. Especially what does mean AES-CMAC or AES-CCM? They are defined in the following specfications. NIST 8...

I modified the sample basicPubSub of the project  aws-iot-device-sdk-python  to develop the Python tool AwsIotPythonTest.py to test AWS IoT ...