DECRYPTION APPARATUS AND METHOD OF DECRYPTING CIPHERTEXT OF THE SAME
    3.
    发明申请
    DECRYPTION APPARATUS AND METHOD OF DECRYPTING CIPHERTEXT OF THE SAME 有权
    分解装置及其分解方法

    公开(公告)号:US20130136257A1

    公开(公告)日:2013-05-30

    申请号:US13618658

    申请日:2012-09-14

    IPC分类号: H04L9/30

    摘要: The method of decrypting a ciphertext includes: pre-storing a plurality of polynomial functions into which a secret key decrypting a ciphertext to a plaintext according to a public-key cryptography algorithm is broken down; receiving the ciphertext generated based on the secret key which is broken down into the plurality of polynomial functions from a ciphertext generating device; and decrypting the received ciphertext into the plaintext based on the pre-stored polynomial functions.

    摘要翻译: 解密密文的方法包括:根据公开密钥密码算法,将存储有密文的秘密密钥解密为明文的多个多项式函数进行预存储; 从密文生成装置接收分解成多项式函数的秘密密钥生成的密文; 以及基于预先存储的多项式函数将接收到的密文解密成明文。

    ENCRYPTION APPARATUS AND METHOD
    4.
    发明申请
    ENCRYPTION APPARATUS AND METHOD 审中-公开
    加密设备和方法

    公开(公告)号:US20120121083A1

    公开(公告)日:2012-05-17

    申请号:US13297857

    申请日:2011-11-16

    IPC分类号: H04L9/28

    CPC分类号: H04L9/0631

    摘要: An encryption method and apparatus for encrypting a plurality of rounds are provided. The encryption method including: extracting a conversion function, which is convertible in a table form from a predetermined block encryption method; converting the extracted conversion function into a corresponding converted table; applying the converted table to an input bit; applying an extension function, which extends an output bit, to an output of the converted table; and applying a restore function, which restores the extended output bit.

    摘要翻译: 提供了用于加密多个轮的加密方法和装置。 该加密方法包括:从预定的块加密方法中提取可以以表格形式转换的转换函数; 将所提取的转换函数转换为对应的转换表; 将转换的表应用于输入位; 将扩展输出位的扩展函数应用于转换表的输出; 并应用还原功能,恢复扩展输出位。