rem setup: create the message1.txt and message2.txt files del -f message[12].txt echo "Two things are infinite: the universe and human stupidity;" > message1.txt echo "and I'm not sure about the the universe." >> message1.txt echo "by Albert Einstein" >> message1.txt echo "The quick brown fox jumped over the lazy dog." > message2.txt rem 1: create keys alice-public.key and alice-private.key ./rsa.bat -key alice -keygen 200 rem 2: create keys bob-public.key and bob-private.key ./rsa.bat -key bob -keygen 200 rem 3: alice is going to encrypt a message for bob ./rsa.bat -key bob -input message1.txt -output encrypted1.txt -encrypt rem 4: bob will decrypt the message ./rsa.bat -key bob -input encrypted1.txt -output message1b.txt -decrypt rem 5: are they the same? comp message1.txt message1b.txt rem 6: bob now sends a message to alice ./rsa.bat -key alice -input message2.txt -output encrypted2.txt -encrypt rem 7: alice will decrypt the message ./rsa.bat -key alice -input encrypted2.txt -output message2b.txt -decrypt rem 8: are they the same? comp message2.txt message2b.txt rem 9: alice signs her message1.txt ./rsa.bat -key alice -input message1.txt -sign rem 10: bob checks that sign; they should match ./rsa.bat -key alice -input message1.txt -checksign rem 11: modify message1.txt move message1.txt message1.txt.bak echo hi >> message1.txt rem 12: bob checks that sign; they should NOT match ./rsa.bat -key alice -input message1.txt -checksign rem 13: restore message1.txt move message1.txt.bak message1.txt ./rsa.bat -key alice -input message1.txt -checksign rem 14: charlie generates an easy-to-crack key ./rsa.bat -key charlie -keygen 10 rem eve tries to crack alice's key ./rsa.bat -key charlie -crack rem 15: is the cracked key the same as the original key? comp charlie-cracked-private.key charlie-private.key rem 16: clean up files (commented out by default) rem del alice*.key bob*.key charlie*.key message*.sign message?b.txt encrypted?.txt message?.txt