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    • 2. 发明授权
    • Program converter, encrypting device, and encrypting method
    • 程序转换器,加密设备和加密方法
    • US08184805B2
    • 2012-05-22
    • US12756440
    • 2010-04-08
    • Kaoru YokotaMotoji OhmoriYuichi Futa
    • Kaoru YokotaMotoji OhmoriYuichi Futa
    • G06F21/00
    • H04L9/0662H04L2209/12
    • A program converter (1) converts a program (P) which performs arithmetic addition processing to execute encryption, into a converted program (tP) which performs processing equivalent to the processing of the program (P). The program converter (1) includes: a key data extraction unit (10) which extracts key data from the program (P); an addition table generation unit (11) which generates an addition table from the extracted key data; a conversion table extraction unit (12) which extracts a conversion table from the program (P); a table merger unit (13) which generates a merger table by merging the generated addition table and the extracted conversion table; a random number generation unit (14) which generates a random number; a table randomization unit (15) which generates a randomized merger table by randomizing the merger table using the generated random number; and a converted-program generation unit (16) which generates the converted program (tP) according to the generated randomized merger table.
    • 程序转换器(1)将执行加法处理的程序(P)转换为执行与程序(P)的处理相当的处理的转换程序(tP)。 程序转换器(1)包括:从程序(P)提取密钥数据的密钥数据提取单元(10); 附加表生成单元,从所提取的密钥数据生成加法表; 转换表提取单元,从程序(P)中提取转换表; 表合并单元,其通过将所生成的加法表与所提取的转换表合并来生成合并表; 产生随机数的随机数生成单元(14); 表格随机化单元,其通过使用所生成的随机数随机化所述合并表来生成随机化合并表; 以及根据生成的随机合并表生成转换程序(tP)的转换程序生成单元(16)。
    • 5. 发明申请
    • PROGRAM CONVERTER, ENCRYPTING DEVICE, AND ENCRYPTING METHOD
    • 程序转换器,加密设备和加密方法
    • US20100195822A1
    • 2010-08-05
    • US12756440
    • 2010-04-08
    • Kaoru YokotaMotoji OhmoriYuichi Futa
    • Kaoru YokotaMotoji OhmoriYuichi Futa
    • H04L9/28
    • H04L9/0662H04L2209/12
    • A program converter (1) converts a program (P) which performs arithmetic addition processing to execute encryption, into a converted program (tP) which performs processing equivalent to the processing of the program (P). The program converter (1) includes: a key data extraction unit (10) which extracts key data from the program (P); an addition table generation unit (11) which generates an addition table from the extracted key data; a conversion table extraction unit (12) which extracts a conversion table from the program (P); a table merger unit (13) which generates a merger table by merging the generated addition table and the extracted conversion table; a random number generation unit (14) which generates a random number; a table randomization unit (15) which generates a randomized merger table by randomizing the merger table using the generated random number; and a converted-program generation unit (16) which generates the converted program (tP) according to the generated randomized merger table.
    • 程序转换器(1)将执行加法处理的程序(P)转换为执行与程序(P)的处理相当的处理的转换程序(tP)。 程序转换器(1)包括:从程序(P)提取密钥数据的密钥数据提取单元(10); 附加表生成单元,从所提取的密钥数据生成加法表; 转换表提取单元,从程序(P)中提取转换表; 表合并单元,其通过将所生成的加法表与所提取的转换表合并来生成合并表; 产生随机数的随机数生成单元(14); 表格随机化单元,其通过使用所生成的随机数随机化所述合并表来生成随机化合并表; 以及根据生成的随机合并表生成转换程序(tP)的转换程序生成单元(16)。