公开(公告)号：US20180097624A1

公开(公告)日：2018-04-05

申请号：US15714877

申请日：2017-09-25

申请人： Security First Corp.

发明人： Mihir Bellare ,  Phillip Rogaway

IPC分类号： H04L9/08 ,  H04L9/32 ,  H04L9/14 ,  G06F21/64

CPC分类号： H04L9/0894 ,  G06F21/64 ,  H04L9/0816 ,  H04L9/085 ,  H04L9/14 ,  H04L9/321 ,  H04L9/3218 ,  H04L9/3231 ,  H04L2209/24 ,  H04L2209/56 ,  H04L2209/805

摘要： A robust computational secret sharing scheme that provides for the efficient distribution and subsequent recovery of a private data is disclosed. A cryptographic key may be randomly generated and then shared using a secret sharing algorithm to generate a collection of key shares. The private data may be encrypted using the key, resulting in a ciphertext. The ciphertext may then be broken into ciphertext fragments using an Information Dispersal Algorithm. Each key share and a corresponding ciphertext. Fragment are provided as input to a committal method of a probabilistic commitment scheme, resulting in a committal value and a decommittal value. The share for the robust computational secret sharing scheme may be obtained by combining the key share, the ciphertext fragment, the decommittal value, and the vector of committal values.

公开(公告)号：US20150016604A1

公开(公告)日：2015-01-15

申请号：US14305993

申请日：2014-06-16

申请人： Security First Corp.

发明人： Mihir Bellare ,  Phillip Rogaway

IPC分类号： H04L9/08 ,  H04L9/14

CPC分类号： H04L9/0894 ,  G06F21/64 ,  H04L9/0816 ,  H04L9/085 ,  H04L9/14 ,  H04L9/321 ,  H04L9/3218 ,  H04L9/3231 ,  H04L2209/24 ,  H04L2209/56 ,  H04L2209/805

摘要： A robust computational secret sharing scheme that provides for the efficient distribution and subsequent recovery of a private data is disclosed. A cryptographic key may be randomly generated and then shared using a secret sharing algorithm to generate a collection of key shares. The private data may be encrypted using the key, resulting in a ciphertext. The ciphertext may then be broken into ciphertext fragments using an Information Dispersal Algorithm. Each key share and a corresponding ciphertext. Fragment are provided as input to a committal method of a probabilistic commitment scheme, resulting in a committal value and a decommittal value. The share for the robust computational secret sharing scheme may be obtained by combining the key share, the ciphertext fragment, the decommittal value, and the vector of committal values.

摘要翻译： 公开了一种强大的计算秘密共享方案，其提供了私有数据的有效分配和随后的恢复。 可以随机生成加密密钥，然后使用秘密共享算法来共享密钥，以产生密钥共享的集合。 可以使用密钥对私有数据进行加密，得到密文。 然后可以使用信息分散算法将密文分解成密文片段。 每个密钥共享和相应的密文。 片段作为概率承诺方案的提交方法的输入提供，导致提交值和分解值。 可以通过组合密钥份额，密文片段，分解值和提交值的向量来获得鲁棒计算秘密共享方案的份额。

公开(公告)号：US09407431B2

公开(公告)日：2016-08-02

申请号：US14305993

申请日：2014-06-16

申请人： Security First Corp.

发明人： Mihir Bellare ,  Phillip Rogaway

IPC分类号： H04L9/08 ,  H04L9/32 ,  H04L9/14

CPC分类号： H04L9/0894 ,  G06F21/64 ,  H04L9/0816 ,  H04L9/085 ,  H04L9/14 ,  H04L9/321 ,  H04L9/3218 ,  H04L9/3231 ,  H04L2209/24 ,  H04L2209/56 ,  H04L2209/805

摘要： A robust computational secret sharing scheme that provides for the efficient distribution and subsequent recovery of a private data is disclosed. A cryptographic key may be randomly generated and then shared using a secret sharing algorithm to generate a collection of key shares. The private data may be encrypted using the key, resulting in a ciphertext. The ciphertext may then be broken into ciphertext fragments using an Information Dispersal Algorithm. Each key share and a corresponding ciphertext. Fragment are provided as input to a committal method of a probabilistic commitment scheme, resulting in a committal value and a decommittal value. The share for the robust computational secret sharing scheme may be obtained by combining the key share, the ciphertext fragment, the decommittal value, and the vector of committal values.

摘要翻译： 公开了一种强大的计算秘密共享方案，其提供了私有数据的有效分配和随后的恢复。 可以随机生成加密密钥，然后使用秘密共享算法来共享密钥，以生成密钥共享的集合。 可以使用密钥对私有数据进行加密，得到密文。 然后可以使用信息分散算法将密文分解成密文片段。 每个密钥共享和相应的密文。 片段作为概率承诺方案的提交方法的输入提供，导致提交值和分解值。 可以通过组合密钥份额，密文片段，分解值和提交值的向量来获得鲁棒计算秘密共享方案的份额。

公开(公告)号：US20130275773A1

公开(公告)日：2013-10-17

申请号：US13903444

申请日：2013-05-28

申请人： Security First Corp.

发明人： Rick L. Orsini ,  Mark S. O'Hare ,  Mihir Bellare ,  Phillip Rogaway

IPC分类号： G06F21/62

CPC分类号： H04L63/065 ,  G06F21/6209 ,  H04L9/0822 ,  H04L9/085 ,  H04L9/321 ,  H04L9/3226 ,  H04L9/3263 ,  H04L63/062 ,  H04L2209/56 ,  H04L2209/80

摘要： A secure data parser is provided that may be integrated into any suitable system for securely storing and communicating data. The secure data parser parses data and then splits the data into multiple portions that are stored or communicated distinctly. Encryption of the original data, the portions of data, or both may be employed for additional security. The secure data parser may be used to protect data in motion by splitting original data into portions of data, that may be communicated using multiple communications paths. A keyed information dispersal algorithm (keyed IDA) may also be used. The key for the keyed IDA may additionally be protected by an external workgroup key, resulting in a multi-factor secret sharing scheme.

公开(公告)号：US20180041485A1

公开(公告)日：2018-02-08

申请号：US15789623

申请日：2017-10-20

申请人： Security First Corp.

发明人： Mark S. O'Hare ,  Rick L. Orsini ,  Mihir Bellare ,  Phillip Rogaway

IPC分类号： H04L29/06 ,  H04L9/32 ,  H04L9/08 ,  G06F21/62

CPC分类号： H04L63/065 ,  G06F21/6209 ,  H04L9/0822 ,  H04L9/085 ,  H04L9/321 ,  H04L9/3226 ,  H04L9/3263 ,  H04L63/062 ,  H04L2209/56 ,  H04L2209/80

摘要： A secure data parser is provided that may be integrated into any suitable system for securely storing and communicating data. The secure data parser parses data and then splits the data into multiple portions that are stored or communicated distinctly. Encryption of the original data, the portions of data, or both may be employed for additional security. The secure data parser may be used to protect data in motion by splitting original data into portions of data, that may be communicated using multiple communications paths. A keyed information dispersal algorithm (keyed IDA) may also be used. The key for the keyed IDA may additionally be protected by an external workgroup key, resulting in a multi-factor secret sharing scheme.

公开(公告)号：US09825927B2

公开(公告)日：2017-11-21

申请号：US14750562

申请日：2015-06-25

申请人： Security First Corp.

发明人： Mark S. O'Hare ,  Rick L. Orsini ,  Mihir Bellare ,  Phillip Rogaway

IPC分类号： G06F11/30 ,  H04L29/06 ,  G06F21/62 ,  H04L9/08 ,  H04L9/32

CPC分类号： H04L63/065 ,  G06F21/6209 ,  H04L9/0822 ,  H04L9/085 ,  H04L9/321 ,  H04L9/3226 ,  H04L9/3263 ,  H04L63/062 ,  H04L2209/56 ,  H04L2209/80

摘要： A secure data parser is provided that may be integrated into any suitable system for securely storing and communicating data. The secure data parser parses data and then splits the data into multiple portions that are stored or communicated distinctly. Encryption of the original data, the portions of data, or both may be employed for additional security. The secure data parser may be used to protect data in motion by splitting original data into portions of data, that may be communicated using multiple communications paths. A keyed information dispersal algorithm (keyed IDA) may also be used. The key for the keyed IDA may additionally be protected by an external workgroup key, resulting in a multi-factor secret sharing scheme.

公开(公告)号：US09774449B2

公开(公告)日：2017-09-26

申请号：US15202856

申请日：2016-07-06

申请人： Security First Corp.

发明人： Mihir Bellare ,  Phillip Rogaway

IPC分类号： H04L29/06 ,  H04L9/08 ,  H04L9/32 ,  H04L9/14 ,  G06F21/64

CPC分类号： H04L9/0894 ,  G06F21/64 ,  H04L9/0816 ,  H04L9/085 ,  H04L9/14 ,  H04L9/321 ,  H04L9/3218 ,  H04L9/3231 ,  H04L2209/24 ,  H04L2209/56 ,  H04L2209/805

摘要： A robust computational secret sharing scheme that provides for the efficient distribution and subsequent recovery of a private data is disclosed. A cryptographic key may be randomly generated and then shared using a secret sharing algorithm to generate a collection of key shares. The private data may be encrypted using the key, resulting in a ciphertext. The ciphertext may then be broken into ciphertext fragments using an Information Dispersal Algorithm. Each key share and a corresponding ciphertext. Fragment are provided as input to a committal method of a probabilistic commitment scheme, resulting in a committal value and a decommittal value. The share for the robust computational secret sharing scheme may be obtained by combining the key share, the ciphertext fragment, the decommittal value, and the vector of committal values.

公开(公告)号：US20150295908A1

公开(公告)日：2015-10-15

申请号：US14750562

申请日：2015-06-25

申请人： Security First Corp.

发明人： Mark S. O'Hare ,  Rick L. Orsini ,  Mihir Bellare ,  Phillip Rogaway

IPC分类号： H04L29/06

CPC分类号： H04L63/065 ,  G06F21/6209 ,  H04L9/0822 ,  H04L9/085 ,  H04L9/321 ,  H04L9/3226 ,  H04L9/3263 ,  H04L63/062 ,  H04L2209/56 ,  H04L2209/80

摘要： A secure data parser is provided that may be integrated into any suitable system for securely storing and communicating data. The secure data parser parses data and then splits the data into multiple portions that are stored or communicated distinctly. Encryption of the original data, the portions of data, or both may be employed for additional security. The secure data parser may be used to protect data in motion by splitting original data into portions of data, that may be communicated using multiple communications paths. A keyed information dispersal algorithm (keyed IDA) may also be used. The key for the keyed IDA may additionally be protected by an external workgroup key, resulting in a multi-factor secret sharing scheme.

公开(公告)号：US09098718B2

公开(公告)日：2015-08-04

申请号：US13903444

申请日：2013-05-28

申请人： Security First Corp.

发明人： Mark S. O'Hare ,  Rick L. Orsini ,  Mihir Bellare ,  Phillip Rogaway

IPC分类号： G06F11/30 ,  G06F21/62 ,  H04L9/08 ,  H04L9/32

CPC分类号： H04L63/065 ,  G06F21/6209 ,  H04L9/0822 ,  H04L9/085 ,  H04L9/321 ,  H04L9/3226 ,  H04L9/3263 ,  H04L63/062 ,  H04L2209/56 ,  H04L2209/80

摘要： A secure data parser is provided that may be integrated into any suitable system for securely storing and communicating data. The secure data parser parses data and then splits the data into multiple portions that are stored or communicated distinctly. Encryption of the original data, the portions of data, or both may be employed for additional security. The secure data parser may be used to protect data in motion by splitting original data into portions of data, that may be communicated using multiple communications paths. A keyed information dispersal algorithm (keyed IDA) may also be used. The key for the keyed IDA may additionally be protected by an external workgroup key, resulting in a multi-factor secret sharing scheme.

摘要翻译： 提供了可以集成到用于安全地存储和传送数据的任何合适的系统中的安全数据解析器。 安全数据解析器解析数据，然后将数据分割成多个部分，这些部分被清楚地存储或通信。 原始数据的加密，数据的部分或两者可以用于额外的安全性。 安全数据解析器可以用于通过将原始数据分割成可以使用多个通信路径来传送的数据部分来保护运动中的数据。 也可以使用密钥信息分散算法（keyed IDA）。 密钥IDA的密钥还可以被外部工作组密钥保护，从而产生多因素秘密共享方案。

公开(公告)号：US20170005796A1

公开(公告)日：2017-01-05

申请号：US15202856

申请日：2016-07-06

申请人： Security First Corp.

发明人： Mihir Bellare ,  Phillip Rogaway

IPC分类号： H04L9/08 ,  H04L9/32

CPC分类号： H04L9/0894 ,  G06F21/64 ,  H04L9/0816 ,  H04L9/085 ,  H04L9/14 ,  H04L9/321 ,  H04L9/3218 ,  H04L9/3231 ,  H04L2209/24 ,  H04L2209/56 ,  H04L2209/805

摘要： A robust computational secret sharing scheme that provides for the efficient distribution and subsequent recovery of a private data is disclosed. A cryptographic key may be randomly generated and then shared using a secret sharing algorithm to generate a collection of key shares. The private data may be encrypted using the key, resulting in a ciphertext. The ciphertext may then be broken into ciphertext fragments using an Information Dispersal Algorithm. Each key share and a corresponding ciphertext. Fragment are provided as input to a committal method of a probabilistic commitment scheme, resulting in a committal value and a decommittal value. The share for the robust computational secret sharing scheme may be obtained by combining the key share, the ciphertext fragment, the decommittal value, and the vector of committal values.

摘要翻译： 公开了一种强大的计算秘密共享方案，其提供了私有数据的有效分配和随后的恢复。 可以随机生成加密密钥，然后使用秘密共享算法来共享密钥，以生成密钥共享的集合。 可以使用密钥对私有数据进行加密，得到密文。 然后可以使用信息分散算法将密文分解成密文片段。 每个密钥共享和相应的密文。 片段作为概率承诺方案的提交方法的输入提供，导致提交值和分解值。 可以通过组合密钥份额，密文片段，分解值和提交值的向量来获得鲁棒计算秘密共享方案的份额。