オンボードシステムによって生成される公開鍵の使用を検証する方法

Title:

オンボードシステムによって生成される公開鍵の使用を検証する方法

Document Type and Number:

Japanese Patent JP4155712

Kind Code:

B2

Abstract:

For a set (Lk) of embedded systems, an authorized operator with identifier (OP_j) creates a mother public key (KpM) and a mother private key (KsM). The identifier (OP_j), the range of identifiers referenced (Lk) and the mother public key (KpM) are published. For each embedded system (SN_i), a diversified key (KsM_i) is created from the identifier (SN_i) and stored. For every public key (Kp) generated by an embedded system, a cryptographic control value (Sc_i) is calculated on the public key (Kp), an algorithm identifier (CA 1 ) and the utilization parameters (U) of this key, using a zero knowledge signature algorithm, and a certification request message (MRCA) that includes control value (Sc_i), the identifier of the operator (Op_j), and identifier (SN_i) is transmitted to a certification authority, which retrieves the identifier (Op_j) and the value of the mother public key (KpM).

Inventors:

Pancas, Douni

Application Number:

JP2000599172A

Publication Date:

September 24, 2008

Filing Date:

February 10, 2000

Export Citation:

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Assignee:

Bull S Are

International Classes:

G09C1/00; H04L9/08; H04L9/30; H04L9/32

Domestic Patent References:

JP2511464B2
JP118619A

Foreign References:

GB2301919A

Attorney, Agent or Firm:

Yoshio Kawaguchi

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