PUBLIC/PRIVATE KEY SYSTEM WITH INCREASED SECURITY

Some embodiments are directed to a second cryptographic device (20) and a first cryptographic device (10). The first and second cryptographic devices may be configured to transfer a key seed. The key seed may be protected using a public key from one party and a private key from the other party. For...

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Main Authors GORISSEN, Paulus,Mathias,Hubertus,Mechtildis,A, OSCAR GARCIA, Oscar, TOLHUIZEN, Ludovicus, Marinus, Gerardus, Maria
Format Patent
LanguageEnglish
French
German
Published 16.08.2023
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary:Some embodiments are directed to a second cryptographic device (20) and a first cryptographic device (10). The first and second cryptographic devices may be configured to transfer a key seed. The key seed may be protected using a public key from one party and a private key from the other party. For example, a public key may be obtained from a private key through a noisy multiplication. At least one of the first and second cryptographic device may validate an obtained public key, e.g., to avoid leakage of the key seed or of a private key.
Bibliography:Application Number: EP20200833923