Encryption method and system using a random bit string encryption key
First Claim
1. A method for encrypting data files using a random bit string encryption key, comprising:
- generating the random bit string encryption key at a remote device using a white noise source sampled one bit at a time by a microprocessor,wherein an analog circuit output is generated that varies between a high value and a low value based upon a signal from the white noise source, andwherein a digital circuit coupled to the analog circuit samples the output of the analog circuit to generate the random bit string;
connecting an encryption key memory device to a host device, the encryption key memory device storing the encryption key and a first verification code by saving the encryption key and the first verification code to the encryption key memory device without using an algorithmic key to generate the encryption key;
receiving a second verification code by the host device from the remote device;
disconnecting the host device from the Internet and external network connections prior to accessing the encryption key, wherein the encryption key is accessed only if the first verification code matches the second verification code;
using a processor, encrypting a data file stored on an external memory device using the encryption key;
connecting the remote device to the Internet and using a computer to send the encrypted file to the remote device; and
connecting the host device to the Internet and sending the encrypted file from the remote device to the host device.
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Accused Products
Abstract
Methods and systems for encrypting data are disclosed. A circuit uses a white noise generator to capture a random string of bits as an encryption key. The encryption key is generated at a central server and is provided to a subscriber on a physical memory device. The subscriber uses the encryption key to encrypt a source data file. The encrypted data file is sent to the central server, which uses the encryption key to decrypt the encrypted data file and to recover the source data file. The file name for the source data file may be encrypted into the encrypted data file and a new name assigned to the encrypted data file. A random number index may be used to identify the starting point of the encrypted file.
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Citations
10 Claims
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1. A method for encrypting data files using a random bit string encryption key, comprising:
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generating the random bit string encryption key at a remote device using a white noise source sampled one bit at a time by a microprocessor, wherein an analog circuit output is generated that varies between a high value and a low value based upon a signal from the white noise source, and wherein a digital circuit coupled to the analog circuit samples the output of the analog circuit to generate the random bit string; connecting an encryption key memory device to a host device, the encryption key memory device storing the encryption key and a first verification code by saving the encryption key and the first verification code to the encryption key memory device without using an algorithmic key to generate the encryption key; receiving a second verification code by the host device from the remote device; disconnecting the host device from the Internet and external network connections prior to accessing the encryption key, wherein the encryption key is accessed only if the first verification code matches the second verification code; using a processor, encrypting a data file stored on an external memory device using the encryption key; connecting the remote device to the Internet and using a computer to send the encrypted file to the remote device; and connecting the host device to the Internet and sending the encrypted file from the remote device to the host device. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for decrypting data files using a random bit string encryption key, comprising:
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generating the random bit string encryption key at a remote device using a white noise source sampled one bit at a time by a microprocessor, wherein an analog circuit output is generated that varies between a high value and a low value based upon a signal from the white noise source, and wherein a digital circuit coupled to the analog circuit samples the output of the analog circuit to generate the random bit string; receiving an encrypted data file at a host device; connecting an encryption key memory device to the host device, the encryption key memory device storing the encryption key and a first verification code by saving the encryption key and the first verification code to the encryption key memory device without using an algorithmic key to generate the encryption key; receiving a second verification code by the host device from the remote device; disconnecting the host device from the Internet and external network connections prior to accessing the encryption key, wherein the encryption key is accessed only if the first verification code matches the second verification code; and using a processor, decrypting the encrypted data file using the encryption key. - View Dependent Claims (8, 9, 10)
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Specification