XOR Reuse

XOR
- UUIDs have dashes (- = 0x2d) at fixed positions: 8, 13, 18, 23
- Plaintext XOR key = ciphertext, but if we ciphertext XOR key we can get plaintext
- 0f4d27d40d1d70da171e24815c5121d1584838da584824ce5c4b2485594974d7034d7481
  - Dashes of UUID Format
    - Pos 1: 17
    - Pos 2: 51
    - Pos 3: 38
    - Pos 4: ce
  - XOR with known HEX Value (0x2d for dashes)
    - 1: 3A
    - 2: 7C
    - 3: 15
    - 5: E3
  - Key for Decryption: 3a7c15e3
  - Use Cyber Chef
    - Source: From Hex
    - XOR with key