Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Having particular address related cryptography
Reexamination Certificate
2007-01-23
2007-01-23
Revak, Christopher (Department: 2131)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Having particular address related cryptography
C713S160000, C380S259000, C709S206000
Reexamination Certificate
active
10057111
ABSTRACT:
A method of transmitting email and a device for transmitting email capable of broadcasting the email including encrypted data effectively. When a personal computer PC1accepts an instruction to transmit same data to multiple destinations by email, the PC1generates a session key (S105) and encrypts the data by utilizing the generated session key (S106). Next, the PC1generates the common key by utilizing a public key generated based on an email address of each destination and the secret key acquired from a center in advance (S107), and encrypts the session key by utilizing the generated common key (S108). The PC1transmits the email including the encrypted data and the encrypted session key to each destination (S110).
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Hogan & Hartson LLP
Murata Kikai Kabushiki Kaisha
Revak Christopher
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