I often heard people saying that private secret encryption is never secure (in other words, easy to crack). But I don't agree. So here is the experiment to find out. I have developed my own encryption algorithm which I have not told anyone (so this is my own secret algorithm).
I have used my algorithm to encrypt an English sentence (so I am not encrypting random bytes) and the encrypted bytes are listed at the end of this post. The encrypted message has 151 bytes.
The first person who can decrypt the original plain text will get US $100. If there are more then one person successfully decrypting the original text, then whoever replies first (to this post) will be the winner. I will also post this same message in Matlab Answers and in that case, I will use timestamp in the posted message. If there are more than one person submitting at the same time (in this newsgroup and in Answers), then I will randomly pick a winner.