Method for realizing encryption and decryption through deriving SCKs in Licenses in encryption locks
The invention discloses a method for realizing encryption and decryption through deriving SCKs in Licenses in encryption locks. The method comprises the following steps of: making an encryption lock; when production is required, generating a License file by using software, directly generating an enc...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a method for realizing encryption and decryption through deriving SCKs in Licenses in encryption locks. The method comprises the following steps of: making an encryption lock; when production is required, generating a License file by using software, directly generating an encrypted SCK file of the batch on the basis of the License file, and importing the SCK into a database by using an import tool; when a programming tool carries a unique keyword of a written terminal to initiate an SCK request to the encryption lock, starting an SCK generation algorithm by the encryption lock to generate an SCK by combining permission data in a nonvolatile memory device, encrypting the SCK by using the keyword, feeding the SCK ciphertext back to the programming tool, and writing the SCK ciphertext into a terminal by the programming tool. Through implementing the method, terminals can be directly submitted to operators to be used after being programmed and other files are not required any more.
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