Systems and methods for password-based connection
First Claim
1. A cryptographic system that allows secure connection of two devices over an open network, comprising:
- a first device;
a second device; and
a password and a shared key that are established in a cryptographic protocol between the first and second devices, which password is communicated in an out-of-band process by one or more users of the devices to selectively allow secure connection of the two devices.
1 Assignment
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Accused Products
Abstract
Cryptographic systems and methods that allow secure connection of two devices over an open network, using passwords communicated in an out-of-band process. One-time versus static passwords, active versus passive models of user participation, and different combinations of password-input and password-output mechanisms may be employed. The present invention uses either a password agreement protocol or a zero-knowledge password proof to securely establish a shared password and a shared key between two parties, and incorporates explicit steps to insure that the user(s) of the system authenticates that the same password, and thus the same key, is used at both devices.
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Citations
19 Claims
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1. A cryptographic system that allows secure connection of two devices over an open network, comprising:
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a first device;
a second device; and
a password and a shared key that are established in a cryptographic protocol between the first and second devices, which password is communicated in an out-of-band process by one or more users of the devices to selectively allow secure connection of the two devices. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A cryptographic method that allows secure connection of two devices over an open network, comprising the steps of:
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providing a first device;
providing a second device;
establishing a password in an out-of-band process between users of the first and second devices; and
evaluating the password by the respective users to selectively allow secure connection of the two devices. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification