### Phase stream 2
#### Problem
- Given the encoded text, get the flag
#### Hints
- Also, the flag is encrypted by 'xor'ing with a key of length 5
#### Solution
- We know that the flag starts with "CHTB{" and ends with "}".- Also, suppose the key = x and the plaintext char =c, then encoded char (e) = c ^ x.- So, we xor the first 5 chars of the encoded string with "CHTB{", this, will give us the key.- So, we use the given key and the encoded flag to get the flag.- You can find the code in decrypt.py- Flag - `CHTB{u51ng_kn0wn_pl41nt3xt}`