OBAKE CRYPTANALYSIS ATTACKS

Introduction

In our tests, we utilized the algorithm OBAKE with the following settings (less safe possible):

• Mode: Secret-Key
• Key used: "a" (a single letter)
• No Compression at all
• No Columnar-Transpose

You can make your tests but, if preferable, our tested files are available here:

• Frequency Analyzer (executable)
• Sample Files (sources and .OBKF*)
• Autocorrelation Analysis (worksheet and source files)
• Differential Analysis (worksheet and source files)
• Chosen Plaintext Analysis (worksheet and source files)
• Chosen Ciphertext Analysis (worksheet and source files)