rootme programmation

Root-Me Programming Challenges

TCP - Back to school

Challenge Link

• We have to create a TCP socket to challenge01.root-me.org:52002
• after the connection we calculte the number 1 and 2 and round the result to two decimal place
• and then send the result two second after receive the two number

compilation

gcc -Wall -Wextra -O2 -o rootme1 rootme1.c -lm

TCP - Encoded string

Challenge Link

• We have to create a TCP socket to challenge01.root-me.org:52023
  • after the connection we decode the base64 encoded string
  • and then send the decoded string two second after receive the encoded string

compilation

install the library: libssl-dev

gcc -Wall -Wextra -O2 -o rootme2 rootme2.c -lssl -lcrypto

TCP - The Roman wheel

Challenge Link

• We have to create a TCP socket to challenge01.root-me.org:52021
  • after the connection we decode the rot13 encoded string
  • and then send the decoded string two second after receive the rot13 encoded string

compilation

gcc -Wall -Wextra -O2 -o rootme3 rootme3.c

TCP - Uncompress Me

Challenge Link

• We have to create a TCP socket to challenge01.root-me.org:52022
  • after the connection we decode the base64 encoded string
  • after we decompress the base64 decoded string
  • and then send several times the decompress decoded string two second after receive the string

compilation

install the library: libssl-dev, zlib1g-dev

gcc -Wall -Wextra -O2 -o rootme4 rootme4.c -lssl -lcrypto -lz