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1. "Patapon Demo" and "Puzzle Guzzle Demo" have the same R value in their NPUMDIMG headers' ECDSA signature (inside EBOOT.PBP).
2. NPUMDIMG header is 0x100 bytes long, being the last 0x28 bytes the ECDSA signature.
3. Calculate SHA-1 hashes for each NPUMDIMG header using the first 0xD8 bytes.
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SHA-1 found inside "Smallest Homebrew":
6DF7E18F19F8EC606702425D37C3A8732F47075D
Key to the Kingdom:
14B022E892CF8614A44557DB095C928DE9B89970
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Thanks Proxima!
- Hykem
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