The contents (NCCH/SRL) are encrypted using 128-bit AES-CBC. The encryption uses the decrypted titlekey from the [[Ticket#Structure|ticket]], and the individual content ID padded with zeros as the IV.
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The contents (NCCH/SRL) are encrypted using 128-bit AES-CBC. The encryption uses the decrypted titlekey from the [[Ticket#Structure|ticket]], and the content index from the TMD padded with zeros as the IV.