PORTABLE MEMORY AND A METHOD FOR ENCRYPTING THE SAME
First Claim
1. A portable memory, comprising:
- a key storage unit for storing a register key for the portable memory;
a key receiving unit for receiving a first key entered by a user and generating a second key based on the first key;
an identification unit for comparing the second key with the register key to obtain a comparison result;
a key generation unit for generating an encryption/decryption key if the comparison result indicates that the second key matches the register key; and
a chip for encrypting /decrypting a data stream exchanged between a computer and the portable memory by using the encryption/decryption key.
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Accused Products
Abstract
The present invention provides a portable memory, comprising: a key storage unit for storing a register key for the portable memory; a key receiving unit for receiving a first key entered by a user and generating a second key based on the first key; an identification unit for comparing the second key with the register key to obtain a comparison result; a key generation unit for generating an encryption/decryption key if the comparison result indicates that the second key matches the register key; a chip for encrypting/decrypting a data stream exchanged between a computer and the portable memory by using the encryption/decryption key. The portable memory constitutes a system itself, and thus can perform encryption/decryption operations independent of external systems, resulting in a reduced cost. The present invention also provides a method of encrypting a portable memory.
19 Citations
11 Claims
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1. A portable memory, comprising:
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a key storage unit for storing a register key for the portable memory; a key receiving unit for receiving a first key entered by a user and generating a second key based on the first key; an identification unit for comparing the second key with the register key to obtain a comparison result; a key generation unit for generating an encryption/decryption key if the comparison result indicates that the second key matches the register key; and a chip for encrypting /decrypting a data stream exchanged between a computer and the portable memory by using the encryption/decryption key. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for encrypting a portable memory, comprising:
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storing a register key for the portable memory; receiving a first key entered by a user and generating a second key based on the first key; comparing the second key with the register key to obtain a comparison result; generating an encryption/decryption key if the comparison result indicates that the second key matches the register key; and encrypting/decrypting a data stream exchanged between a computer and the portable memory by using the encryption/decryption key. - View Dependent Claims (11)
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Specification