Nxp B.v.

Thierry Gouraud

Dimitri Warnez

Bruce Murray

Andreas Lessiak

Ernst Haselsteiner

Henricus Hubertus Van Den Berg

Frank Siedel

Rafael Jan Josef Meeusen

Rafael Jan Jozef Meeusen

There is disclosed a method for managing content, including generating, by a service provider, an authenticable management script configured to manage content comprised in a secure element; providing, by the service provider, the authenticable management script to the secure element. Furthermore, there is disclosed a method for managing content, comprising: receiving, by a secure element, an authenticable management script for managing content comprised in the secure element; authenticating, by the secure element, the authenticable management script; executing, by the secure element, the management script if the management script is authentic. Furthermore, there are disclosed corresponding computer program products and a corresponding secure element.

Methods for managing content, computer program products and secure element

Provisioning an integrated circuit with confidential data, by receiving in the integrated circuit encrypted confidential data, the encrypted confidential data having been encrypted with a transport key, deriving 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 in the integrated circuit the encrypted confidential data with the transport key to obtain decrypted confidential data, deriving 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 in the integrated circuit the decrypted confidential data with the product key to obtain re-encrypted confidential data, and storing the re-encrypted confidential data in a confidential data memory of the integrated circuit.

Secure dynamic on chip key programming

There is disclosed a method of providing a software update to a secure element comprised in a host device, comprising converting the software update into a sequence of ciphertext blocks using a chained encryption scheme, and transmitting said sequence of ciphertext blocks to the host device. Furthermore, there is disclosed a method of installing a software update on a secure element comprised in a host device, comprising receiving, by the host device, a sequence of ciphertext blocks generated by a method of providing a software update of the kind set forth, converting said sequence of ciphertext blocks into the software update, and installing the software update on the secure element. Furthermore, corresponding computer program products and a corresponding host device are disclosed.

Updating software on a secure element

Growing community of inventors

Leuven, Belgium

Thierry Gouraud