Design of a three character string as an encryption key, use the key to encrypt a string of 100 characters,
The key first for any character, the second for the Numbers between 1 to 7, the third for any character,

Encryption for the first time, with the key of target character first xor encryption,

Second encrypted with the key of the second to the target cycle ASC yards of hexadecimal characters left displacement,

Third encryption, the third character of reverse ASC with key code of target character xor,

Finally get the results after 100 characters encryption,