Hello MTC3 team (Scatha) ,

I am certain that 3 minor errors occur at each starting email of each forum concerning the Weakened Granit - Part 1/2/3

While it is stated that

Post subject: Challenge "Weakened Granit — Part 1

The challenges for the simplified GRANIT cipher, a method that can be done manually, serve as an exercise and contain an intentionally weakened version of GRANIT. Part 1 is a ciphertext-only challenge for which the second permutation key is known.

Post subject: Challenge "Weakened Granit — Part 2"

The challenges for the simplified GRANIT cipher, a method that can be done manually, serve as an exercise and contain an intentionally weakened version of GRANIT. Part 2 is a ciphertext-only challenge for which both permutation keys are known.

Post subject: Challenge "Weakened Granit — Part 3"

The challenges for the simplified GRANIT cipher, a method that can be done manually, serve as an exercise and contain an intentionally weakened version of GRANIT. Part 3 is a ciphertext-only challenge for which the first permutation key is known.

, the correct texts should be

Post subject: Challenge "Weakened Granit — Part 1

The challenges for the simplified GRANIT cipher, a method that can be done manually, serve as an exercise and contain an intentionally weakened version of GRANIT. Part 1 is a ciphertext-only challenge for which both permutation keys are known.

Post subject: Challenge "Weakened Granit — Part 2"

The challenges for the simplified GRANIT cipher, a method that can be done manually, serve as an exercise and contain an intentionally weakened version of GRANIT. Part 2 is a ciphertext-only challenge for which the first permutation key is known.

Post subject: Challenge "Weakened Granit — Part 3"

The challenges for the simplified GRANIT cipher, a method that can be done manually, serve as an exercise and contain an intentionally weakened version of GRANIT. Part 3 is a ciphertext-only challenge for which the second permutation key is known.

This conclusion is obvious if you compare the 3 pdf files. There R1 and R2, R1 and R2 are known in each part

The rest data seems OK

Best Regards

George Theofanidis

P.S. Keep up the great work you are doing.