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
    • 2. 发明授权
    • Order-preserving encryption and decryption apparatus and method thereof
    • 订单保存加密和解密装置及其方法
    • US08817978B2
    • 2014-08-26
    • US13333974
    • 2011-12-21
    • Nam-Su JhoDo Won Hong
    • Nam-Su JhoDo Won Hong
    • H04K1/00
    • H04L9/002H04L9/0662
    • An order-preserving encryption apparatus includes an initializer for setting a total space of a ciphertext with respect to a total space of a plaintext by considering security of the ciphertext, and setting a secret key for encryption and a pseudo-random number generator for generation of a pivot. Further, the order-preserving encryption apparatus includes a pivot generator for applying the secret key to the established pseudo-random number generator to generate a pivot for the plaintext to be encrypted. Further, the order-preserving encryption apparatus includes a ciphertext generator for generating information about size of a bit constituting the ciphertext by comparing the generated pivot and the plaintext; and a plaintext adjusting unit for adjusting a magnitude of the total plaintext space and a magnitude of the plaintext according to the ciphertext.
    • 订单保存加密装置包括:初始化器,用于通过考虑密文的安全性来设置相对于明文的总空间的密文的总空间,以及设置用于加密的秘密密钥和用于生成密文的伪随机数发生器 一个枢纽 此外,订单保存加密装置包括用于将密钥应用于所建立的伪随机数发生器以产生待加密明文的枢轴的枢轴发生器。 此外,订单保存加密装置包括密文生成器,用于通过比较生成的枢轴和明文来产生关于构成密文的比特的大小的信息; 以及明文调整单元,用于根据密文调整总明文空间的大小和明文的大小。
    • 3. 发明申请
    • ORDER-PRESERVING ENCRYPTION AND DECRYPTION APPARATUS AND METHOD THEREOF
    • 订购保存加密和解码装置及其方法
    • US20120163586A1
    • 2012-06-28
    • US13333974
    • 2011-12-21
    • Nam-Su JHODo Won Hong
    • Nam-Su JHODo Won Hong
    • H04L9/28
    • H04L9/002H04L9/0662
    • An order-preserving encryption apparatus includes an initializer for setting a total space of a ciphertext with respect to a total space of a plaintext by considering security of the ciphertext, and setting a secret key for encryption and a pseudo-random number generator for generation of a pivot. Further, the order-preserving encryption apparatus includes a pivot generator for applying the secret key to the established pseudo-random number generator to generate a pivot for the plaintext to be encrypted. Further, the order-preserving encryption apparatus includes a ciphertext generator for generating information about size of a bit constituting the ciphertext by comparing the generated pivot and the plaintext; and a plaintext adjusting unit for adjusting a magnitude of the total plaintext space and a magnitude of the plaintext according to the ciphertext.
    • 订单保存加密装置包括:初始化器,用于通过考虑密文的安全性来设置相对于明文的总空间的密文的总空间,以及设置用于加密的秘密密钥和用于生成密文的伪随机数发生器 一个枢纽 此外,订单保存加密装置包括用于将密钥应用于所建立的伪随机数发生器以产生待加密明文的枢轴的枢轴发生器。 此外,订单保存加密装置包括密文生成器,用于通过比较生成的枢轴和明文来产生关于构成密文的比特的大小的信息; 以及明文调整单元,用于根据密文调整总明文空间的大小和明文的大小。
    • 4. 发明授权
    • Key establishment method and system using commutative linear function
    • 关键建立方法和系统使用交换线性函数
    • US07715556B2
    • 2010-05-11
    • US11449405
    • 2006-06-08
    • Ku Young ChangDo Won HongHyun Sook ChoKyo Il Chung
    • Ku Young ChangDo Won HongHyun Sook ChoKyo Il Chung
    • G06F21/20
    • H04L9/0841
    • Provided are a key establishment method and system using commutative linear functions. In the method, a server defines a set of linear functions that use elements of a first finite field as coefficients and satisfy a commutative rule, selects a first linear function from the set, and selects a predetermined element from a second finite field. Next, the server selects a second linear function corresponding to each of nodes from the set, generates a predetermined combination function based on the first and second linear functions, generates a value of the second linear function using the selected element as a factor, and transmits the combination function and the value of the second linear function to a corresponding node. Each node receives the value of the second linear function from a server, exchanges the received values with the other nodes, computes a value using the exchanged value as a factor of the combination function, and establishes the computed value as a shared key between the nodes. Therefore, each node can perform key establishment with a small amount of computation and low memory consumption, while guaranteeing end-to-end security.
    • 提供了一种使用交换线性函数的关键建立方法和系统。 在该方法中,服务器定义一组线性函数,其使用第一有限域的元素作为系数并满足可交换规则,从集合中选择第一线性函数,并从第二有限域中选择预定元素。 接下来,服务器从集合中选择对应于每个节点的第二线性函数,基于第一和第二线性函数生成预定的组合函数,使用所选择的元素作为因子生成第二线性函数的值,并且发送 组合函数和第二个线性函数的值对应一个节点。 每个节点从服务器接收第二线性函数的值,与其他节点交换接收的值,使用交换的值作为组合函数的因子计算值,并将计算值建立为节点之间的共享密钥 。 因此,每个节点可以执行少量计算和低内存消耗的密钥建立,同时保证端到端的安全性。
    • 5. 发明授权
    • Apparatus for hybrid multiplier in GF(2m) and method thereof
    • GF(2m)中混合乘法器的装置及其方法
    • US07599979B2
    • 2009-10-06
    • US11046340
    • 2005-01-28
    • Yong Je ChoiKu Young ChangDo Won HongHyun Sook Cho
    • Yong Je ChoiKu Young ChangDo Won HongHyun Sook Cho
    • G06F7/72
    • G06F7/724
    • An apparatus and method for hybrid multiplication in GF(2m) by which trade-off between the area and the operation speed of an apparatus for a hybrid multiplier in finite field GF(2m) can be achieved are provided. The apparatus for hybrid multiplication includes: a matrix Z generation unit generating [m×k] matrix Z for performing a partial multiplication of a(x) and b(x), by dividing b(x) by k bits (k≦┌m/2┐), when multiplication of m-bit multiplier a(x) and m-bit multiplicand b(x) is performed from [(m+k−1)×k] coefficient matrix of a(x) in GF(2m); a partial multiplication unit performing the partial multiplication ┌m/k┐k−1 times in units of rows of the matrix Z to calculate an (┌m/k┐k−1)-th partial multiplication value and a final result value of the multiplication; and a reduction unit receiving the (┌m/k┐k−1)-th partial multiplication value fed back from the partial multiplication unit and performing reduction of the value in order to obtain a partial multiplication value next to the (┌m/k┐k−1)-th partial multiplication value.
    • 提供了一种用于在GF(2m)中的混合乘法的装置和方法,通过该方法可以实现有限域GF(2m)中用于混合乘法器的装置的区域和操作速度之间的权衡。 用于混合乘法的装置包括:通过将b(x)除以k位(k <=┌m/ m)来生成用于执行a(x)和b(x)的部分相乘的[mxk]矩阵Z的矩阵Z生成单元 在GF(2m)中的(x)的[(m + k-1)×k]系数矩阵中执行m比特乘法器a(x)和m比特被乘数b(x)的乘法时, 部分乘法单元以矩阵Z的行为单位执行部分乘法┌m/k┐k-1次,以计算(┌m/k┐k-1)个部分乘法值和最终结果值 乘法; 以及缩小单元,接收从部分乘法单元反馈的(┌m/k┐k-1)个部分相乘值,并执行该值的减少,以获得与(┌m/ k ┐k-1)部分乘法值。
    • 9. 发明申请
    • PASSWORD DECIPHERING APPARATUS AND METHOD
    • 密码解密设备和方法
    • US20110044449A1
    • 2011-02-24
    • US12615772
    • 2009-11-10
    • Keonwoo KIMDo Won Hong
    • Keonwoo KIMDo Won Hong
    • H04K3/00
    • G06F21/31G06F2221/2131
    • Provided are an apparatus and a method for deciphering a password. The password deciphering apparatus includes a host control unit and at least two graphic processing units. The host control unit generates candidate passwords for detection of a password of a ciphered document file, and allocates the generated candidate passwords to at least two graphic processing units in a non-overlapping manner. The graphic processing units output password detection information when detecting the password of the document file by searching the allocated candidate passwords. Herein, upon receiving the password detection information from one of the graphic processing units, the host control unit uses the password detection information to detect the password.
    • 提供了用于解密密码的装置和方法。 密码解密装置包括主机控制单元和至少两个图形处理单元。 主机控制单元产生用于检测加密文档文件的密码的候选密码,并且以不重叠的方式将生成的候选密码分配给至少两个图形处理单元。 图形处理单元通过搜索分配的候选密码来检测文档文件的密码时输出密码检测信息。 这里,主机控制单元从其中一个图形处理单元接收到密码检测信息时,使用密码检测信息来检测密码。