RSA (OpenSSL) Encryption

Used public key:

-----BEGIN PUBLIC KEY-----
MEwwDQYJKoZIhvcNAQEBBQADOwAwOAIxAMAyyOArE+BoIgN+pipyf5uki64O8Grs
5Kf6LrBo45Ik7KIlYhn8OJ+kzlz2dhYoDQIDAQAB
-----END PUBLIC KEY-----

You can use the query string to specify the data
Encrypted text: 1234567890123456789012345678901234567

Encrypted raw:

l��u�e�m=JI��/�L�!��g���5Q7�z9�a���W�Z����

Encrypted base64 encoded:

bLPMdYNlwW09SkmK3C+/TI4h9+qLH2fLC+XTNVE3oXo5yH9hi+fXVwLFWp7p0cYW

This encryption uses OPENSSL_PKCS1_PADDING and a pre-defined key pair. By an key length of 384, the maximum data length is 37 characters (would be 48 without padding).