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Usage (to be rewritten in a more understandable way):
Usage (not confirmed working!!!):
# Step 1: Decrypt the 64 first bytes of sector 0 of the storage with AES-XTS-128 using Data and Tweak.
# Step 1: Decrypt the 64 first bytes of sector 0 of the storage with AES-XTS-128 using Data and Tweak.
# Step 2: Compute HMAC-SHA256 of decrypted 0x20 bytes from offset 0x20 with Tweak and Data, appended together in this order, as key.
# Step 2: Compute HMAC-SHA256 of decrypted 0x20 bytes from offset 0x20 with Tweak and Data, appended together in this order, as key.
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