root@localhost$

root@localhost$

# Hiding this really important number in an obscure piece of code is brilliant! # AND it's encrypted! # We want our biggest client to know his information is safe with us. bezos_cc_secret = "A:4@r%uL`M-^M0c0AbcM-MFE07b34c`_6N" # Reference alphabet alphabet = "!\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ"+ \ "[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~" def decode_secret(secret): """ROT47 decode NOTE: encode and decode are the same operation in the ROT cipher family. """ # Encryption key rotate_const = 47 # Storage for decoded secret decoded = "" # decode loop for c in secret: index = alphabet.find(c) original_index = (index + rotate_const) % len(alphabet) decoded = decoded + alphabet[original_index] print(decoded) def choose_greatest(): """Echo the largest of the two numbers given by the user to the program Warning: this function was written quickly and needs proper error handling """ user_value_1 = input("What's your first number? ") user_value_2 = input("What's your second number? ") greatest_value = user_value_1 # need a value to return if 1 & 2 are equal if user_value_1 > user_value_2: greatest_value = user_value_1 elif user_value_1 < user_value_2: greatest_value = user_value_2 print( "The number with largest positive magnitude is " + str(greatest_value) ) choose_greatest() root@localhost$

What's your first number?

What's your second number?

The number with largest positive magnitude is python3 crackme.py root@localhost$

bash: nano: command not found root@localhost$

Reading package lists... 0% Reading package lists... 0% Reading package lists... 0% Reading package lists... 5% Reading package lists... 5% Reading package lists... 6% Reading package lists... 6% Reading package lists... 60% Reading package lists... 63% Reading package lists... 63% Reading package lists... 64% Reading package lists... 64% Reading package lists... 70% Reading package lists... 70% Reading package lists... 77% Reading package lists... 77% Reading package lists... 82% Reading package lists... 82% Reading package lists... 82% Reading package lists... 82% Reading package lists... 82% Reading package lists... 82% Reading package lists... 83% Reading package lists... 83% Reading package lists... 88% Reading package lists... 88% Reading package lists... 94% Reading package lists... 94% Reading package lists... 99% Reading package lists... 99% Reading package lists... 99% Reading package lists... 99% Reading package lists... Done Building dependency tree... 0% Building dependency tree... 0% Building dependency tree... 50% Building dependency tree... 50% Building dependency tree... 96% Building dependency tree... Done Reading state information... 0% Reading state information... 0% Reading state information... Done The following additional packages will be installed: libgpm2 libsodium23 vim-common vim-runtime xxd Suggested packages: gpm ctags vim-doc vim-scripts The following NEW packages will be installed: libgpm2 libsodium23 vim vim-common vim-runtime xxd 0 upgraded, 6 newly installed, 0 to remove and 25 not upgraded. Need to get 8886 kB of archives. After this operation, 38.8 MB of additional disk space will be used. Do you want to continue? [Y/n]

Abort. root@localhost$

Reading package lists... 0% Reading package lists... 0% Reading package lists... 0% Reading package lists... 5% Reading package lists... 5% Reading package lists... 6% Reading package lists... 6% Reading package lists... 62% Reading package lists... 63% Reading package lists... 63% Reading package lists... 64% Reading package lists... 64% Reading package lists... 70% Reading package lists... 70% Reading package lists... 77% Reading package lists... 77% Reading package lists... 82% Reading package lists... 82% Reading package lists... 82% Reading package lists... 82% Reading package lists... 82% Reading package lists... 82% Reading package lists... 83% Reading package lists... 83% Reading package lists... 88% Reading package lists... 88% Reading package lists... 94% Reading package lists... 94% Reading package lists... 99% Reading package lists... 99% Reading package lists... 99% Reading package lists... 99% Reading package lists... Done Building dependency tree... 0% Building dependency tree... 0% Building dependency tree... 50% Building dependency tree... 50% Building dependency tree... Done Reading state information... 0% Reading state information... 0% Reading state information... Done The following additional packages will be installed: libgpm2 libsodium23 vim-common vim-runtime xxd Suggested packages: gpm ctags vim-doc vim-scripts The following NEW packages will be installed: libgpm2 libsodium23 vim vim-common vim-runtime xxd 0 upgraded, 6 newly installed, 0 to remove and 25 not upgraded. Need to get 8886 kB of archives. After this operation, 38.8 MB of additional disk space will be used. Do you want to continue? [Y/n]

Abort. root@localhost$

Reading package lists... 0% Reading package lists... 0% Reading package lists... 0% Reading package lists... 5% Reading package lists... 5% Reading package lists... 6% Reading package lists... 6% Reading package lists... 48% Reading package lists... 63% Reading package lists... 63% Reading package lists... 64% Reading package lists... 64% Reading package lists... 70% Reading package lists... 70% Reading package lists... 77% Reading package lists... 77% Reading package lists... 82% Reading package lists... 82% Reading package lists... 82% Reading package lists... 82% Reading package lists... 82% Reading package lists... 82% Reading package lists... 83% Reading package lists... 83% Reading package lists... 88% Reading package lists... 88% Reading package lists... 94% Reading package lists... 94% Reading package lists... 99% Reading package lists... 99% Reading package lists... 99% Reading package lists... 99% Reading package lists... Done Building dependency tree... 0% Building dependency tree... 0% Building dependency tree... 50% Building dependency tree... 50% Building dependency tree... 51% Building dependency tree... Done Reading state information... 0% Reading state information... 0% Reading state information... Done The following additional packages will be installed: libgpm2 libsodium23 vim-common vim-runtime xxd Suggested packages: gpm ctags vim-doc vim-scripts The following NEW packages will be installed: libgpm2 libsodium23 vim vim-common vim-runtime xxd 0 upgraded, 6 newly installed, 0 to remove and 25 not upgraded. Need to get 8886 kB of archives. After this operation, 38.8 MB of additional disk space will be used. Do you want to continue? [Y/n]

Abort. root@localhost$

Reading package lists... 0% Reading package lists... 0% Reading package lists... 0% Reading package lists... 5% Reading package lists... 5% Reading package lists... 6% Reading package lists... 6% Reading package lists... 62% Reading package lists... 63% Reading package lists... 63% Reading package lists... 64% Reading package lists... 64% Reading package lists... 70% Reading package lists... 70% Reading package lists... 77% Reading package lists... 77% Reading package lists... 82% Reading package lists... 82% Reading package lists... 82% Reading package lists... 82% Reading package lists... 82% Reading package lists... 82% Reading package lists... 83% Reading package lists... 83% Reading package lists... 88% Reading package lists... 88% Reading package lists... 94% Reading package lists... 94% Reading package lists... 99% Reading package lists... 99% Reading package lists... 99% Reading package lists... 99% Reading package lists... Done Building dependency tree... 0% Building dependency tree... 0% Building dependency tree... 50% Building dependency tree... 50% Building dependency tree... Done Reading state information... 0% Reading state information... 0% Reading state information... Done The following additional packages will be installed: libgpm2 libsodium23 vim-common vim-runtime xxd Suggested packages: gpm ctags vim-doc vim-scripts The following NEW packages will be installed: libgpm2 libsodium23 vim vim-common vim-runtime xxd 0 upgraded, 6 newly installed, 0 to remove and 25 not upgraded. Need to get 8886 kB of archives. After this operation, 38.8 MB of additional disk space will be used. Do you want to continue? [Y/n]

Abort. root@localhost$

Reading package lists... 0% Reading package lists... 0% Reading package lists... 0% Reading package lists... 5% Reading package lists... 5% Reading package lists... 6% Reading package lists... 6% Reading package lists... 57% Reading package lists... 63% Reading package lists... 63% Reading package lists... 64% Reading package lists... 64% Reading package lists... 70% Reading package lists... 70% Reading package lists... 77% Reading package lists... 77% Reading package lists... 82% Reading package lists... 82% Reading package lists... 82% Reading package lists... 82% Reading package lists... 82% Reading package lists... 82% Reading package lists... 83% Reading package lists... 83% Reading package lists... 88% Reading package lists... 88% Reading package lists... 94% Reading package lists... 94% Reading package lists... 99% Reading package lists... 99% Reading package lists... 99% Reading package lists... 99% Reading package lists... Done Building dependency tree... 0% Building dependency tree... 0% Building dependency tree... 50% Building dependency tree... 50% Building dependency tree... 77% Building dependency tree... Done Reading state information... 0% Reading state information... 0% Reading state information... Done The following additional packages will be installed: libgpm2 libsodium23 vim-common vim-runtime xxd Suggested packages: gpm ctags vim-doc vim-scripts The following NEW packages will be installed: libgpm2 libsodium23 vim vim-common vim-runtime xxd 0 upgraded, 6 newly installed, 0 to remove and 25 not upgraded. Need to get 8886 kB of archives. After this operation, 38.8 MB of additional disk space will be used. Do you want to continue? [Y/n]

Abort. root@localhost$

Reading package lists... 0% Reading package lists... 0% Reading package lists... 0% Reading package lists... 5% Reading package lists... 5% Reading package lists... 6% Reading package lists... 6% Reading package lists... 60% Reading package lists... 63% Reading package lists... 63% Reading package lists... 64% Reading package lists... 64% Reading package lists... 70% Reading package lists... 70% Reading package lists... 77% Reading package lists... 77% Reading package lists... 82% Reading package lists... 82% Reading package lists... 82% Reading package lists... 82% Reading package lists... 82% Reading package lists... 82% Reading package lists... 83% Reading package lists... 83% Reading package lists... 88% Reading package lists... 88% Reading package lists... 94% Reading package lists... 94% Reading package lists... 99% Reading package lists... 99% Reading package lists... 99% Reading package lists... 99% Reading package lists... Done Building dependency tree... 0% Building dependency tree... 0% Building dependency tree... 50% Building dependency tree... 50% Building dependency tree... 85% Building dependency tree... Done Reading state information... 0% Reading state information... 0% Reading state information... Done The following additional packages will be installed: libgpm2 libsodium23 vim-common vim-runtime xxd Suggested packages: gpm ctags vim-doc vim-scripts The following NEW packages will be installed: libgpm2 libsodium23 vim vim-common vim-runtime xxd 0 upgraded, 6 newly installed, 0 to remove and 25 not upgraded. Need to get 8886 kB of archives. After this operation, 38.8 MB of additional disk space will be used. Do you want to continue? [Y/n]

Abort. root@localhost$

Reading package lists... 0% Reading package lists... 0% Reading package lists... 0% Reading package lists... 5% Reading package lists... 5% Reading package lists... 6% Reading package lists... 6% Reading package lists... 53% Reading package lists... 63% Reading package lists... 63% Reading package lists... 64% Reading package lists... 64% Reading package lists... 70% Reading package lists... 70% Reading package lists... 77% Reading package lists... 77% Reading package lists... 82% Reading package lists... 82% Reading package lists... 82% Reading package lists... 82% Reading package lists... 82% Reading package lists... 82% Reading package lists... 83% Reading package lists... 83% Reading package lists... 88% Reading package lists... 88% Reading package lists... 94% Reading package lists... 94% Reading package lists... 99% Reading package lists... 99% Reading package lists... 99% Reading package lists... 99% Reading package lists... Done Building dependency tree... 0% Building dependency tree... 0% Building dependency tree... 50% Building dependency tree... 50% Building dependency tree... 69% Building dependency tree... Done Reading state information... 0% Reading state information... 0% Reading state information... Done The following additional packages will be installed: libgpm2 libsodium23 vim-common vim-runtime xxd Suggested packages: gpm ctags vim-doc vim-scripts The following NEW packages will be installed: libgpm2 libsodium23 vim vim-common vim-runtime xxd 0 upgraded, 6 newly installed, 0 to remove and 25 not upgraded. Need to get 8886 kB of archives. After this operation, 38.8 MB of additional disk space will be used. Do you want to continue? [Y/n]

Abort. root@localhost$

Reading package lists... 0% Reading package lists... 0% Reading package lists... 0% Reading package lists... 5% Reading package lists... 5% Reading package lists... 6% Reading package lists... 6% Reading package lists... 54% Reading package lists... 63% Reading package lists... 63% Reading package lists... 64% Reading package lists... 64% Reading package lists... 70% Reading package lists... 70% Reading package lists... 77% Reading package lists... 77% Reading package lists... 82% Reading package lists... 82% Reading package lists... 82% Reading package lists... 82% Reading package lists... 82% Reading package lists... 82% Reading package lists... 83% Reading package lists... 83% Reading package lists... 88% Reading package lists... 88% Reading package lists... 94% Reading package lists... 94% Reading package lists... 99% Reading package lists... 99% Reading package lists... 99% Reading package lists... 99% Reading package lists... Done Building dependency tree... 0% Building dependency tree... 0% Building dependency tree... 50% Building dependency tree... 50% Building dependency tree... 67% Building dependency tree... Done Reading state information... 0% Reading state information... 0% Reading state information... Done The following additional packages will be installed: libgpm2 libsodium23 vim-common vim-runtime xxd Suggested packages: gpm ctags vim-doc vim-scripts The following NEW packages will be installed: libgpm2 libsodium23 vim vim-common vim-runtime xxd 0 upgraded, 6 newly installed, 0 to remove and 25 not upgraded. Need to get 8886 kB of archives. After this operation, 38.8 MB of additional disk space will be used. Do you want to continue? [Y/n]