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Patent applications and USPTO patent grants for Satoh; Hisayoshi.The latest application filed is for "method of a public key encryption and a cypher communication both secure against a chosen-ciphertext attack".
Patent | Date |
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Method of a public key encryption and a cypher communication both secure against a chosen-ciphertext attack Grant 7,649,991 - Nishioka , et al. January 19, 2 | 2010-01-19 |
Method of a public key encryption and a cypher communication both secure against a chosen-ciphertext attack App 20070177727 - Nishioka; Mototsugu ;   et al. | 2007-08-02 |
Method of a public key encryption and a cypher communication both secure against a chosen-ciphertext attack Grant 7,164,765 - Nishioka , et al. January 16, 2 | 2007-01-16 |
Method of a public key encryption and a cypher communication both secure against a chosen-ciphertext attack App 20030002662 - Nishioka, Mototsugu ;   et al. | 2003-01-02 |
Public-key cryptographic schemes secure against an adaptive chosen ciphertext attack in the standard model App 20020146117 - Nishioka, Mototsugu ;   et al. | 2002-10-10 |
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