Communication system for providing the delivery of an e-mail message
First Claim
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1. A communication system, comprising:
- a sender unit;
a recipient unit; and
a control unit,wherein each of the sender unit, the recipient unit and the control unit comprises at least one of the group consisting of a server computer comprising a memory element, a client computer, a desktop computer, a laptop computer, a personal digital assistant, and a mobile phone;
wherein the sender unit, the recipient unit and the control unit being communicatively coupled via a communication network;
wherein the sender unit is adapted to generate an electronic message to be transmitted to the recipient unit and to send a sending information message to the control unit indicating that the electronic message is transmitted to the recipient unit;
wherein the sender unit is adapted for mandatorily attaching a predetermined attachment to the electronic message, the predetermined attachment having a particular extension allowing a software installed on the recipient unit to automatically determine the type of message;
wherein the recipient unit is adapted to receive the electronic message and to send a receipt information message to the control unit, the receipt information message indicating that a user of the recipient unit has received the electronic message and that the electronic message comprises the predetermined attachment;
wherein the sender unit is adapted to generate the electronic message as an encrypted electronic message by encrypting electronic data;
wherein the sender unit is adapted to generate a fingerprint of the electronic message, the fingerprint allowing for unambiguous identification of the electronic message, and to send the fingerprint to the control unit;
wherein the sender unit is adapted to send a decryption key to the control unit as at least a part of the sending information message, the decryption key being adapted to decrypt the encrypted electronic message;
wherein the recipient unit is adapted to generate a fingerprint of the electronic message, the fingerprint allowing for unambiguous identification of the electronic message, and to send the fingerprint to the control unit;
wherein the control unit is adapted to compare the fingerprint generated by the recipient unit and the fingerprint generated by the sender unit;
wherein the control unit is adapted to trigger sending of the correct decryption key to the recipient unit only upon positive match of the fingerprints; and
wherein the control unit is adapted for rejecting delivering of the correct decryption key when the predetermined attachment to the electronic message is missing.
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Abstract
A communication system includes a sender unit, a recipient unit and a control unit. The sender unit is adapted to generate an electronic message, to send the electronic message to the recipient unit, and to send a sending information message to the control unit indicating that the sender unit has sent the electronic message to the recipient unit. The recipient unit is adapted to receive the electronic message from the sender unit and to send a receipt information message to the control unit, the receipt information message indicating that a user of the recipient unit has received the electronic message.
15 Citations
19 Claims
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1. A communication system, comprising:
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a sender unit; a recipient unit; and a control unit, wherein each of the sender unit, the recipient unit and the control unit comprises at least one of the group consisting of a server computer comprising a memory element, a client computer, a desktop computer, a laptop computer, a personal digital assistant, and a mobile phone; wherein the sender unit, the recipient unit and the control unit being communicatively coupled via a communication network; wherein the sender unit is adapted to generate an electronic message to be transmitted to the recipient unit and to send a sending information message to the control unit indicating that the electronic message is transmitted to the recipient unit; wherein the sender unit is adapted for mandatorily attaching a predetermined attachment to the electronic message, the predetermined attachment having a particular extension allowing a software installed on the recipient unit to automatically determine the type of message; wherein the recipient unit is adapted to receive the electronic message and to send a receipt information message to the control unit, the receipt information message indicating that a user of the recipient unit has received the electronic message and that the electronic message comprises the predetermined attachment; wherein the sender unit is adapted to generate the electronic message as an encrypted electronic message by encrypting electronic data; wherein the sender unit is adapted to generate a fingerprint of the electronic message, the fingerprint allowing for unambiguous identification of the electronic message, and to send the fingerprint to the control unit; wherein the sender unit is adapted to send a decryption key to the control unit as at least a part of the sending information message, the decryption key being adapted to decrypt the encrypted electronic message; wherein the recipient unit is adapted to generate a fingerprint of the electronic message, the fingerprint allowing for unambiguous identification of the electronic message, and to send the fingerprint to the control unit; wherein the control unit is adapted to compare the fingerprint generated by the recipient unit and the fingerprint generated by the sender unit; wherein the control unit is adapted to trigger sending of the correct decryption key to the recipient unit only upon positive match of the fingerprints; and wherein the control unit is adapted for rejecting delivering of the correct decryption key when the predetermined attachment to the electronic message is missing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A communication method, comprising:
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receiving a sending information message from a sender unit with a control unit, the sending information message indicating that an electronic message is transmitted from the sender unit to a recipient unit, wherein the electronic message is an encrypted electronic message generated by encrypting electronic data, the sender unit, the recipient unit and the control unit being communicatively coupled nodes in a communication network; receiving, by means of the control unit from the sender unit, a fingerprint of the electronic message, the fingerprint allowing for unambiguous identification of the electronic message; receiving, by means of the control unit from the sender unit, a decryption key as at least a part of the sending information message, the decryption key being adapted to decrypt the encrypted electronic message; receiving, by means of the control unit from the recipient unit, a receipt information message, the receipt information message indicating that a user of the recipient unit has received the electronic message and that the electronic message comprises a predetermined attachment, the predetermined attachment having a particular extension allowing a software installed on the recipient unit to automatically determine the type of message; sending a confirmation message from the control unit to the sender unit; receiving, by means of the control unit from the recipient unit, a fingerprint of the electronic message, the fingerprint allowing for unambiguous identification of the electronic message; comparing by means of the control unit, the fingerprint generated by the recipient unit and the fingerprint generated by the sender unit; triggering, by means of the control unit, sending of the correct decryption key to the recipient unit only upon positive match of the fingerprints; and rejecting delivering of the correct decryption key when a predetermined attachment to the electronic message is missing. - View Dependent Claims (15, 16, 17)
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18. A non-transitory computer-readable medium including content configured to direct a processor in a communication system to perform a method, comprising:
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receiving, with a control unit, a sending information message from a sender unit, the sending information message indicating that an electronic message is transmitted from the sender unit to a recipient unit, wherein the electronic message is an encrypted electronic message generated by encrypting electronic data, the sender unit, the recipient unit and the control unit being communicatively coupled nodes in a communication network; receiving, with the control unit from the sender unit, a fingerprint of the electronic message, the fingerprint allowing for unambiguous identification of the electronic message; receiving, with the control unit from the sender unit, a decryption key as at least a part of the sending information message, the decryption key being adapted to decrypt the encrypted electronic message; receiving, with the control unit from the recipient unit, a receipt information message from the recipient unit, the receipt information message indicating that a user of the recipient unit has received the electronic message and that the electronic message comprises a predetermined attachment, the predetermined attachment having a particular extension allowing a software installed on the recipient unit to automatically determine the type of message; and sending a confirmation message from the control unit to the sender unit; receiving, with the control unit from the recipient unit, a fingerprint of the electronic message, the fingerprint allowing for unambiguous identification of the electronic message; the control unit comparing the fingerprint generated by the recipient unit and the fingerprint generated by the sender unit; the control unit triggering sending of the correct decryption key to the recipient unit only upon positive match of the fingerprints; and the control unit rejecting delivering of the correct decryption key when the predetermined attachment to the electronic message is missing.
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19. A control unit for a communication system, comprising:
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a sender unit communicatively coupled to the control unit; and a recipient unit communicatively coupled to the sender unit and the control unit, wherein each of the sender unit, the recipient unit and the control unit comprises at least one of the group consisting of a server computer comprising a memory element, a client computer, a desktop computer, a laptop computer, a personal digital assistant, and a mobile phone; wherein the sender unit, the recipient unit and the control unit being communicatively coupled via a communication network; wherein the control unit is adapted to receive a sending information message from the sender unit, the sending information message indicating that an electronic message is transmitted to the recipient unit, and is adapted to receive a receipt information message from the recipient unit, the receipt information message indicating that a user of the recipient unit has received the electronic message and that the electronic message comprises a predetermined attachment, the predetermined attachment having a particular extension allowing a software installed on the recipient unit to automatically determine the type of message; wherein the electronic message is an encrypted electronic message generated by encrypting electronic data; wherein the control unit is adapted to receive a fingerprint of the electronic message from the sender unit, the fingerprint allowing for unambiguous identification of the electronic message; wherein the control unit is adapted for receiving from the sender unit a decryption key as at least a part of the sending information message, the decryption key being adapted to decrypt the encrypted electronic message; wherein the control unit is adapted for receiving from the recipient unit a fingerprint of the electronic message, the fingerprint allowing for unambiguous identification of the electronic message; wherein the control unit is adapted to compare the fingerprint generated by the recipient unit and the fingerprint generated by the sender unit wherein the control unit is adapted to trigger sending of the correct decryption key to the recipient unit only upon positive match of the fingerprints; and wherein the control unit is adapted to reject delivering of the correct decryption key when the predetermined attachment to the electronic message is missing.
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Specification