Secure dynamic on-chip key programming
A method for provisioning an integrated circuit 100 with confidential data, the method comprising receiving 310 in the integrated circuit encrypted confidential data, the encrypted confidential data having been encrypted with a transport key, deriving 320 in the integrated circuit the transport key...
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| creator | Gouraud, Thierry Van Den Berg, Henricus Hubertus |
| description | A method for provisioning an integrated circuit 100 with confidential data, the method comprising receiving 310 in the integrated circuit encrypted confidential data, the encrypted confidential data having been encrypted with a transport key, deriving 320 in the integrated circuit the transport key by applying a key derivation function to a customer identifier, the customer identifier having been previously stored in the integrated circuit, decrypting 330 in the integrated circuit the encrypted confidential data with the transport key to obtain decrypted confidential data, deriving 340 in the integrated circuit a product key by applying a key derivation function to an integrated circuit identifier, the integrated circuit identifier having been previously stored in the integrated circuit, encrypting 350 in the integrated circuit the decrypted confidential data with the product key to obtain re-encrypted confidential data, and storing 360 the re-encrypted confidential data in a confidential data memory of the integrated circuit. |
| format | Patent |
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| language | eng ; fre ; ger |
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| subjects | ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION |
| title | Secure dynamic on-chip key programming |
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