Encrypted response smart battery
First Claim
1. A method for charging a smart battery, the method comprising:
- receiving an encrypted random string, wherein the encrypted random string includes a random string in an encrypted form;
decrypting the encrypted random string to recover the random string; and
transferring the random string to a device to authenticate the smart battery for the charging, the device being electrically coupled to the smart battery.
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Accused Products
Abstract
In a method and system for authenticating a smart battery for charging, the smart battery receives an encrypted random string. The smart battery is operable to provide power to a device. The encrypted random string is generated by a controller of the device by generating a random string and encrypting the random string with an encryption key. The smart battery decrypts the encrypted random string with the encryption key to recover the random string and transfer the random string to the device. The device verifies that the random string is unchanged to authenticate the smart battery for the charging. If the random string has been modified then the smart battery is disabled from the charging.
76 Citations
22 Claims
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1. A method for charging a smart battery, the method comprising:
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receiving an encrypted random string, wherein the encrypted random string includes a random string in an encrypted form;
decrypting the encrypted random string to recover the random string; and
transferring the random string to a device to authenticate the smart battery for the charging, the device being electrically coupled to the smart battery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for authenticating a smart battery, the method comprising:
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generating a first random string, the first random string being generated by a device electrically coupled to the smart battery;
encrypting the first random string, the first random string being encrypted with a first encryption key included in the device to generate the encrypted first random string;
transferring the encrypted first random string, the encrypted first random string being transferred from the device to the smart battery;
decrypting the encrypted first random string with the first encryption key to recover a second random string;
encrypting the second random string, the second random string being encrypted with a second encryption key included in the smart battery to generate the encrypted second random string;
transferring the encrypted second random string, the encrypted second random string being transferred from the smart battery to the device;
decrypting the encrypted second random string with the second encryption key to recover the second random string; and
verifying the first random string and the second random string match to authenticate the smart battery. - View Dependent Claims (15, 16, 17)
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18. A smart battery authentication system comprising:
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a smart battery, wherein the smart battery includes;
a smart electronics device operable to;
receive an encrypted random string, wherein the encrypted random string includes a random string in an encrypted form;
decrypt the encrypted random string to recover the random string; and
transfer the random string to a controller to authenticate the smart battery;
a communications bus for electrically coupling the smart electronics to the controller; and
the controller operable to authenticate the smart battery by generating the random string, generating the encrypted random string and verifying the random string is unchanged. - View Dependent Claims (19, 20)
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21. An information handling system comprising:
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a processor;
a system bus;
a memory coupled to the processor through the system bus;
a power supply system operable to provide power to the processor, the bus and the memory, the power supply system being connectable to an AC adapter for deriving power from an AC power source;
a controller coupled to the processor and memory through the system bus, the controller operable to control the power supply system; and
wherein the power supply system includes;
a smart battery having a smart electronics, the smart electronics being operable to;
receive an encrypted random string, wherein the encrypted random string includes a random string in an encrypted form;
decrypt the encrypted random string to recover the random string; and
transfer the random string to the controller to authenticate the smart battery. - View Dependent Claims (22)
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Specification