PROCESSOR AUTHENTICATION METHOD

The disclosure includes a method of authenticating a processor that includes an arithmetic and logic unit. At least one decoded operand of at least a portion of a to-be-executed opcode is received on a first terminal of the arithmetic and logic unit. A signed instruction is received on a second term...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: PEETERS, Michael, MARINET, Fabrice
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The disclosure includes a method of authenticating a processor that includes an arithmetic and logic unit. At least one decoded operand of at least a portion of a to-be-executed opcode is received on a first terminal of the arithmetic and logic unit. A signed instruction is received on a second terminal of the arithmetic and logic unit. The signed instruction combines a decoded instruction of the to-be-executed opcode and a previous calculation result of the arithmetic and logic unit.