###Encrypt
php -r "echo openssl_encrypt('Hello OpenSSL', 'AES-256-CBC', 'SecretPass', 0, '6299868101947302');"
TLHG68yaaVtSsV3zOYtn2Q==
printf "Hello OpenSSL" | openssl enc -a -e -aes-256-cbc -K $(printf "SecretPass" | od -A n -t x1 | tr -d '\040\011\012\015') -iv $(printf "6299868101947302" | od -A n -t x1 | tr -d '\040\011\012\015')
TLHG68yaaVtSsV3zOYtn2Q==
###Decrypt
php -r "echo openssl_decrypt('TLHG68yaaVtSsV3zOYtn2Q==', 'AES-256-CBC', 'SecretPass', 0, '6299868101947302');"
Hello OpenSSL
echo "TLHG68yaaVtSsV3zOYtn2Q==" | openssl enc -a -d -aes-256-cbc -K $(printf "SecretPass" | od -A n -t x1 | tr -d '\040\011\012\015') -iv $(printf "6299868101947302" | od -A n -t x1 | tr -d '\040\011\012\015')
Hello OpenSSL