会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明申请
    • DIGITAL DATA DISTRIBUTION SYSTEM
    • 数字数据分发系统
    • WO02099558A3
    • 2003-07-24
    • PCT/US0151574
    • 2001-11-07
    • MATSUSHITA ELECTRIC IND CO LTDMATSUSHIMA HIDEKIOKAMOTO RYUICHIINOUE MITSUHIROKOZUKA MASAYUKI
    • MATSUSHIMA HIDEKIOKAMOTO RYUICHIINOUE MITSUHIROKOZUKA MASAYUKI
    • G11B20/10G10K15/02G10L11/00G10L19/00G11B20/00H04L9/08G06K9/03G06F13/00G06K9/36H04N5/50
    • G11B20/00086
    • A CD on which only music information specified by the CD-DA is recorded, or a CD on which both music information specified by the CD-DA and music information to be recorded on a CD-ROM are recorded is mounted upon an information processing terminal (10) .When the CD on which only music information specified by the CD-DA is recorded is mounted, the information processing terminal (10) acquires, from a directory server (20), an ISRC number that identifies the music information recorded on the CD, and distribution server location information that identifies a content distribution server. The information processing terminal (10) acquires content that is the music information compressed according to the MP3 and encrypted, from the content distribution server identified by the acquired distribution server location information, and the decryption key. The information processing terminal then decrypts the acquired content using the acquired decryption key and reproduces music.
    • 记录仅记录由CD-DA指定的音乐信息的CD或将CD-DA指定的两个音乐信息和要记录在CD-ROM上的音乐信息记录在其上的CD被安装在信息处理终端 (10)。当安装仅记录由CD-DA指定的音乐信息的CD时,信息处理终端(10)从目录服务器(20)获取标识记录在CD-DA上的音乐信息的ISRC号码 CD和分发服务器位置信息,用于标识内容分发服务器。 信息处理终端(10)从由所获取的分发服务器位置信息识别的内容分发服务器和解密密钥获取作为根据MP3压缩并被加密的音乐信息的内容。 信息处理终端然后使用所获取的解密密钥解密所获取的内容并再现音乐。
    • 4. 发明申请
    • APPARATUSES AND METHODS FOR DECRYPTING ENCRYPTED BLOCKS OF DATA AND LOCATING THE DECRYPTED BLOCKS OF DATA IN MEMORY SPACE USED FOR EXECUTION
    • 用于分解加密数据块的装置和方法,并将用于执行的存储空间中的数据块定位
    • WO2004013744A3
    • 2004-07-29
    • PCT/JP0309422
    • 2003-07-25
    • MATSUSHITA ELECTRIC IND CO LTD
    • ASAI RIEKOSYODA YUKIEHIROTA TERUTOITO YOSHIKATSUSATO TAICHIMATSUSHIMA HIDEKIABE TOSHIHISA
    • G06F1/00G06F21/14G06F21/62
    • G06F21/14G06F21/6218G06F21/6281
    • An encrypted-data decrypting apparatus that provides enhanced security protection for programs and data while they are in the processes of decryption to execution after having been encrypted. When a decrypted partial program needs to be loaded into the shared memory (M), the controlling unit (11) loads it into an area indicated by the memory location information. According to the memory location information, a plurality of partial programs are sequentially loaded into an area so that one partial program gets overwritten by another; therefore, none of the partial programs exists in the memory for a long time, and thus there is less possibility of having the partial programs referred to illegitimately. In addition, since every time some data is decrypted, the decryption support program authenticating unit (13) confirms authenticity of the decryption support program (P), it is possible to prevent having illegitimate references in which the decryption support program is abused.
    • 一种加密数据解密装置,当它们在被加密之后处于解密到执行的过程中时,为程序和数据提供增强的安全保护。 当解密的部分程序需要加载到共享存储器(M)中时,控制单元(11)将其加载到由存储器位置信息指示的区域中。 根据存储器位置信息,多个部分程序被顺序地加载到一个区域中,使得一个部分程序被另一部分程序重写; 因此,部分程序中没有一个存在于存储器中很长一段时间,因此部分程序被非法地引用的可能性较小。 此外,由于每当解密数据被解密时,解密支持程序认证单元(13)确认解密支持程序(P)的真实性,所以可以防止具有解密支持程序被滥用的非法引用。