疯狂的干饭机器

I have been in the crypto world for two years, and after going in circles, trading has made my life a mess. I took a good hand of cards and played it terribly.
During the pandemic years, after finishing my college entrance exams, I went to the army. After my discharge, I continued my studies. I am someone who is unwilling to be mediocre, not content with a salary of three to five thousand after graduation. I started looking for various opportunities because I know that the truly profitable industries are always niche. At first, I sold second-hand phones on Xianyu, buying low and selling high to earn some small money. Later, I got involved in some e-commerce platforms, but I didn't make much, just keeping busy and feeling fulfilled.

Once upon a time, Princess Alice of the kingdom wanted to secretly send a scroll of magical formulas to the distant alchemist Bob but was worried that every mailman would peek at the scroll. Just as she fell into despair, a mysterious 'ciphertext mailman' appeared: he took Alice's scroll, sealed it into ciphertext, and quietly calculated the number of pages of the spell, added a timestamp, and even signed a credit certificate in encrypted form without unsealing it; only when it reached Bob's hands did he gently unseal it, resulting in a process that was completely consistent with the original plaintext operation, yet no one could see the secrets within. This mailman's miraculous skill is a true depiction of Fully Homomorphic Encryption (FHE).