Protocol for protecting content protection data

专利名称：Protocol for protecting content protection

data

发明人：Tu, Van Quy,Little, Herbert Anthony,Takacs,

Kristof

申请号：EP10174421.7申请日：20100827公开号：EP2290873B1公开日：20140122

摘要：Through the use of a one-time-use nonce, the transfer of cryptographic dataover a potentially insecure link in a two-factor content protection system is avoided. Thenonce may be stored encrypted with a public key from a smart card. A random key maybe used to produce a storage key, which is used to encrypt a content protection key. Therandom key may be stored, encrypted with a key derived from the nonce. Instead ofreceiving a raw content protection key over the potentially insecure link, the raw nonce isreceived and, once used, replaced with a new nonce.

申请人：BLACKBERRY LTD

地址：CA

国籍：CA

代理机构：Patel, Binesh

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