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热词
    • 1. 发明授权
    • Method of copying and decrypting encrypted digital data and apparatus therefor
    • 复制和解密加密数字数据的方法及其装置
    • US07987361B2
    • 2011-07-26
    • US10958237
    • 2004-10-06
    • Hee-chul HanYun-sang KimYang-lim ChoiSung-hyu HanYong-kuk You
    • Hee-chul HanYun-sang KimYang-lim ChoiSung-hyu HanYong-kuk You
    • H04L29/06
    • G11B20/00442G06F21/10G11B20/00362G11B20/00492G11B20/00557
    • A method of and an apparatus for copying and decrypting encrypted digital data. The method of copying encrypted digital data includes encrypting a first media key block to be used for decryption of the encrypted digital data using a predetermined key of a second information storage medium and storing the encrypted digital data and the encrypted first media key block in the second information storage medium. Security of data encryption is heightened by not discarding an encryption key used for an initial encryption, encrypting the encryption key used for initial encryption using another encryption key used for a second encryption, and storing the encrypted encryption key with the data. Also, since unnecessary decryption and encryption of data are not repeated, the time required for copying data is reduced, and since data is transferred between apparatuses in an encrypted state, a security level is higher.
    • 一种用于复制和解密加密的数字数据的方法和装置。 复制加密的数字数据的方法包括使用第二信息存储介质的预定密钥加密要用于解密加密的数字数据的第一媒体密钥块,并将加密的数字数据和加密的第一媒体密钥块存储在第二媒体密钥块中 信息存储介质。 通过不丢弃用于初始加密的加密密钥来加密数据加密的安全性,使用用于第二加密的另一加密密钥加密用于初始加密的加密密钥,并将加密的加密密钥与该数据进行存储。 此外,由于不重复数据的不必要的解密和加密,所以减少了复制数据所需的时间,并且由于数据在加密状态的装置之间传送,所以安全级别更高。
    • 8. 发明授权
    • Method of copying and reproducing data from storage medium
    • 从存储介质复制和再现数据的方法
    • US07874004B2
    • 2011-01-18
    • US11010280
    • 2004-12-14
    • Sung-hyu HanYun-sang KimYang-lim ChoiYong-kuk YouHee-chul Han
    • Sung-hyu HanYun-sang KimYang-lim ChoiYong-kuk YouHee-chul Han
    • G06F7/04
    • G11B20/00086G06F21/10G11B20/0021G11B20/00246
    • Provided is a method of copying data stored in a first storage medium to a second storage medium. The method includes recording the encrypted data stored in the first storage medium on the second storage medium; reproducing a first content key, which is used to encrypt the encrypted data, using a first drive into which the first storage medium is loaded; encrypting the first content key; sending the encrypted first content key to a second drive into which the second storage medium is loaded; and recording the encrypted first content key on the second storage medium. In this method, encrypted data stored in a first storage medium is sent to a second storage medium via a host without decrypting the encrypted data, thereby preventing the data from being hacked or being accessed by unauthorized users and increasing a speed of copying the encrypted data.
    • 提供了将存储在第一存储介质中的数据复制到第二存储介质的方法。 该方法包括将存储在第一存储介质中的加密数据记录在第二存储介质上; 使用加载有第一存储介质的第一驱动器再现用于加密加密数据的第一内容密钥; 加密第一内容密钥; 将加密的第一内容密钥发送到第二驱动器,第二驱动器装入第二存储介质; 以及将加密的第一内容密钥记录在第二存储介质上。 在该方法中,存储在第一存储介质中的加密数据经由主机被发送到第二存储介质,而不对加密的数据进行解密,从而防止数据被未经授权的用户入侵或被访问,并增加复制加密数据的速度 。
    • 10. 发明申请
    • Prepaid card type data recording medium, recording apparatus thereof, apparatus for providing contents, and method used for authenticating the data recording medium
    • 预付卡类型数据记录介质,其记录装置,用于提供内容的装置和用于认证数据记录介质的方法
    • US20050169472A1
    • 2005-08-04
    • US11002249
    • 2004-12-03
    • Sung-hyu HanYun-sang KimYang-lim ChoiYong-kuk YouHee-chul Han
    • Sung-hyu HanYun-sang KimYang-lim ChoiYong-kuk YouHee-chul Han
    • G06Q30/00H04N7/167
    • G11B20/00086G06Q30/06G11B20/00115G11B20/00724G11B20/00855G11B2220/2541
    • A data recording medium, a recording apparatus thereof, and an apparatus for providing contents having a function of securing personal anonymity similar to a prepaid card. The prepaid card type data recording medium includes a control information area on which is recorded coupon ID information for identifying the data recording medium and representing the authority for recording contents. In addition, marginal capacity information for indicating the maximum downloadable capacity of contents may further be recorded on the control information area. The apparatus for providing contents includes an authentication unit for authenticating personal identification information, and a contents upload unit for uploading predetermined contents to the data recording medium when the authentication is successful in the authentication unit. In addition, the apparatus for providing contents further includes an information DB unit which stores marginal capacity information indicating the marginal capacity of contents to be downloaded to the data recording medium according to the coupon ID information. The authentication unit determines whether to upload the predetermined contents by referring to the information DB. Blueray disc, the next generation DVD, can be used in a mobile phone or PDA as a prepaid card type data recording medium.
    • 一种数据记录介质,其记录装置和用于提供具有类似于预付卡的个人匿名保护功能的内容的装置。 预付卡类型数据记录介质包括控制信息区,其上记录有用于识别数据记录介质并表示记录内容​​的权限的优惠券ID信息。 此外,用于指示内容的最大可下载容量的边缘容量信息可以进一步记录在控制信息区域上。 用于提供内容的装置包括用于认证个人识别信息的认证单元和用于在认证单元中认证成功时将预定内容上传到数据记录介质的内容上载单元。 此外,用于提供内容的装置还包括信息DB单元,其根据优惠券ID信息存储指示要下载到数据记录介质的内容的边际容量的边际容量信息。 认证单元通过参考信息DB来确定是否上传预定内容。 Blueray光盘,下一代DVD,可以在手机或PDA中用作预付卡类型的数据记录介质。