How do i encrypt and decrypt a string with aes-256-cbc encryption using openssl?

saolasosme

Usually, you will do this programmatically rather than on the command line.

       -pbkdf2
           Use PBKDF2 algorithm with default iteration count unless otherwise
           specified.

Wiki link to pbkdf2 information: https://en.wikipedia.org/wiki/PBKDF2

To encrypt, using base64 encoding, encryption using aes-256-cbc.

$ echo "That's the text"|openssl enc -aes-256-cbc -base64 -pbkdf2
U2FsdGVkX18LI1TGujfW+DQXUT6yS3GYcS2VyKtcDvc6b1G4gsLkFdIJ47iOHdk+

To decrypt. As the encryption is base64 encoded, first decode using base64 and then decrypt.

$ echo "U2FsdGVkX18LI1TGujfW+DQXUT6yS3GYcS2VyKtcDvc6b1G4gsLkFdIJ47iOHdk+" | openssl enc -base64 -d | openssl enc -aes-256-cbc -d -pbkdf2
enter aes-256-cbc decryption password:
That's the text

To list the support ciphers.

$ openssl enc -ciphers