Exercise 1 - RSA key generation

Task 1

Task 2

• The algorithm depicted after “DEK-Info” is AES-256-CBC, 6823549AC049E5C3DEC57687D6F48B8F. This shows the encryption algorithm used is AES-256-CBC.

Task 3

openssl rsa -in myrsa-enc-kypair.pem -text -noout

Yes, I do need to provide a passphrase. The private key file myrsa-enc-kypair.pem was encrypted using the AES-256-CBC algorithm. If we need to decrypt and show the key in plain text format, OpenSSL would need the correct password decrypt the encrypted private key.

Task 4

Yes, I do need to provide passphrase to retrieve the public key.

Exercise 2 - Encryption using RSA

Task 1

Task 2

Task 3