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    • 72. 发明申请
    • Storage medium and method and apparatus for separately protecting data in different areas of the storage medium
    • 用于在存储介质的不同区域中分别保护数据的存储介质和方法和装置
    • US20050251866A1
    • 2005-11-10
    • US11167638
    • 2005-06-27
    • Hiroyuki KobayashiYoshiaki Uchida
    • Hiroyuki KobayashiYoshiaki Uchida
    • G06F12/14G06F1/00G06F3/06G06F21/00G06F21/24H04L9/00G06F11/30H04L9/32
    • G06F21/78G06F21/6209
    • Disclosed are a method and an apparatus for protecting data on a storage medium by encrypting the data to be recorded on the storage medium with a password. This method comprises a step of, generating, for changing key data on each memory unit by one password, the key data, thereafter encrypting the key data with the password and writing the encrypted data to the storage medium, and a step of encrypting the data with the key data and encrypted data to the storage medium. The method further comprises a step of reading the encrypted key data from the storage medium, a step of decoding the encrypted key data with the password, and a step of decoding the data on the storage medium with the decoded key data. The encryption is done by using the key data generated separately from the password, and it is therefore feasible to prevent the password from being analyzed by decoding a cipher text.
    • 公开了一种通过用密码加密要记录在存储介质上的数据来保护存储介质上的数据的方法和装置。 该方法包括以下步骤:通过一个密码生成用于通过一个密码改变每个存储器单元上的密钥数据的密钥数据,然后用密码加密密钥数据并将加密数据写入存储介质;以及加密数据的步骤 密钥数据和加密数据到存储介质。 该方法还包括从存储介质读取加密的密钥数据的步骤,用密码对加密的密钥数据进行解码的步骤,以及用解码的密钥数据对存储介质上的数据进行解码的步骤。 通过使用与密码分开生成的密钥数据来完成加密,因此可以通过对密文进行解码来防止密码被分析。
    • 78. 发明申请
    • Semiconductor memory
    • 半导体存储器
    • US20050105322A1
    • 2005-05-19
    • US10975852
    • 2004-10-29
    • Hiroyuki KobayashiTatsuya Kanda
    • Hiroyuki KobayashiTatsuya Kanda
    • G11C11/407G11C8/08G11C11/403G11C11/406G11C11/408G11C8/00
    • G11C11/4085G11C8/08G11C2207/2227G11C2211/4067
    • A boost voltage generator generates a boost voltage as a high-level voltage of word lines. First word decoders output a low-level voltage or the high-level voltage according to a first address signal in an active period, and outputs the high-level voltage in a standby period. A switch circuit connects a high-level voltage line for supplying the high-level voltage to the first word decoders, with a boost voltage line in the active period, and connects the same with an internal voltage line in the standby period. The internal voltage line is supplied with a voltage lower than the boost voltage. Word drivers supply the boost voltage to the word lines when the gates of their transistors receive the low-level voltage from the first word decoders, and output the low-level voltage to the word lines when the gates thereof receive the high-level voltage from the first word decoders.
    • 升压电压发生器产生升压电压作为字线的高电平电压。 第一字解码器在有效期内根据第一地址信号输出低电平电压或高电平电压,并在待机期间输出高电平电压。 开关电路将用于将高电平电压提供给第一字解码器的高电平电压线连接到有效期间的升压电压线,并且在待机期间将其连接到内部电压线。 内部电压线的电压低于升压电压。 当其晶体管的栅极接收来自第一字解码器的低电平电压时,字驱动器向字线提供升压电压,并且当其栅极从其接收高电平电压时,将低电平电压输出到字线 第一个字解码器。