Application security assingment

Create keysotre and keypair for Alice

keytool -genkey -alias alice -keyalg RSA -keystore alice.keystore -storetype JKS -storepass Aa1234

Export certificate for Alice

keytool -export -alias alice -keystore alice.keystore -rfc -file alice.cert -storepass Aa1234

Create keysotre and keypair for Bob

keytool -genkey -alias bob -keyalg RSA -keystore bob.keystore -storetype JKS -storepass Aa1234

Export certificate for Bob

keytool -export -alias bob -keystore bob.keystore -rfc -file bob.cert -storepass Aa1234

Import Bob's certificate to Alice's keystore

keytool -import -alias bob -file bob.cert -storetype JKS -keystore alice.keystore -storepass Aa1234

Import Alice's certificate to Bob's keystore

keytool -import -alias alice -file alice.cert -storetype JKS -keystore bob.keystore -storepass Aa1234

Build

javac -d . Conf.java
javac -d . Crypto.java

Run

Encrypt

java crypto.Crypto conf plain_data

Decrypt

java crypto.Crypto conf.decryptor plain_data.cipher