Secure supply of an integrated circuit

A method and a circuit for scrambling the current signature of a load comprising at least one integrated circuit executing digital processings, including supplying at least the integrated circuit from a supply voltage external to the circuit by combining a current provided by a first linear regulato...

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Bibliographische Detailangaben
Hauptverfasser:	MALHERBE ALEXANDRE, KUSSENER EDITH, TELANDRO VINCENT
Format:	Patent
Sprache:	eng
Schlagworte:	ADVERTISING CALCULATING CODING OR CIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHERPURPOSES INVOLVING THE NEED FOR SECRECY COMPUTING CONTROLLING COUNTING CRYPTOGRAPHY DISPLAY EDUCATION ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY HANDLING RECORD CARRIERS JAMMING OF COMMUNICATION PHYSICS PRESENTATION OF DATA RECOGNITION OF DATA RECORD CARRIERS REGULATING SEALS SECRET COMMUNICATION SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:	A method and a circuit for scrambling the current signature of a load comprising at least one integrated circuit executing digital processings, including supplying at least the integrated circuit from a supply voltage external to the circuit by combining a current provided by a first linear regulator with a current provided by at least one capacitive switched-mode power supply circuit with one or several switched capacitances.