Digital authentication over acoustic channel
First Claim
1. Apparatus for requesting authentication comprising:
- a storage medium configured to store a cryptographic key;
a processor coupled to the storage medium and configured to generate an access code using the cryptographic key;
a converter coupled to the processor and configured to convert the access code into sound waves encoded with the access code; and
an audio output unit coupled to the converter and configured to output the sound waves encoded with the access code for authentication.
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Accused Products
Abstract
Method and apparatus for controlling access to a secure network, system or application is disclosed. In one embodiment, an apparatus for requesting authentication includes a storage medium that stores a cryptographic key, a processor that generates an access code using the cryptographic key, a converter that converts the access code into sound waves, and an audio output unit that outputs the sound waves encoded with the access code for authentication. An apparatus for granting authentication includes a storage medium that stores a cryptographic key, an audio input unit that receives sound waves encoded with a access code, a converter that recovers the access code from the sound waves, and a processor that generates a second access code using the cryptographic key and grants authentication if the access code corresponds to the second access code.
64 Citations
61 Claims
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1. Apparatus for requesting authentication comprising:
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a storage medium configured to store a cryptographic key;
a processor coupled to the storage medium and configured to generate an access code using the cryptographic key;
a converter coupled to the processor and configured to convert the access code into sound waves encoded with the access code; and
an audio output unit coupled to the converter and configured to output the sound waves encoded with the access code for authentication. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for requesting authentication from a user device storing a cryptographic key, comprising:
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generating an access code using the cryptographic key;
converting the access code into sound waves encoded with the access code; and
outputting the sound waves encoded with the access code for authentication. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. Apparatus for requesting authentication comprising:
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means for storing a cryptographic key;
means for generating an access code using the cryptographic key;
means for converting the access code into sound waves; and
means for outputting the sound waves encoded with the access code for authentication. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
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27. A machine readable medium for use in requesting authentication comprising:
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code segment configured to generate an access code using a cryptographic key;
code segment configured to convert the access code into sound waves encoded with the access code; and
code segment configured to output the sound waves encoded with the access code for authentication. - View Dependent Claims (28, 29)
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30. Apparatus for authenticating comprising:
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a storage medium configured to store a cryptographic key;
an audio input unit configured to receive sound waves encoded with an access code;
a converter coupled to the audio input unit and configured to recover the access code from the sound waves; and
a processor coupled to the storage medium and the converter, the processor configured to verify the access code based on the cryptographic key and to grant access if the access code is verified. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. A method for authenticating in a verifier device storing a cryptographic key, comprising:
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receiving sound waves encoded with an access code;
recovering the access code from the sound waves encoded with an access code; and
verifying the access code based on the cryptographic key. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48, 49)
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50. Apparatus for authenticating comprising:
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means for storing a cryptographic key;
means for receiving sound waves encoded with an access code;
means for recovering the access code from the sound waves; and
means for verifying the access code based on the cryptographic key. - View Dependent Claims (51, 52, 54, 55, 56, 57, 58)
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53. The apparatus of claim, further comprising:
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means for generating a time element;
whereinthe means for verifying the access code verifies the access code using the cryptographic key and the time element.
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59. A machine readable medium used for authenticating comprising:
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code segment for receiving sound waves encoded with an access code;
code segment for recovering the access code from the sound waves encoded with the access code; and
code segment for verifying the access code based on the cryptographic key. - View Dependent Claims (60, 61)
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Specification