Hanno Langweg

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Digital signatures are a key technology for many Internet-based commercial and administrative applications and, therefore, an increasingly popular target of attacks. Due to their strong cryptographic properties an attacker is more likely to subvert them with malicious software, ie Trojan horse programs. We show that by fusing two techniques, our(More)
Electronic signatures are introduced by more and more countries as legally binding means for signing electronic documents with the primary hope of boosting e-commerce and e-government. Given that the underlying cryptographic methods are sufficiently strong, attacks by Trojan horse programs on electronic signatures are becoming increasingly popular. Most of(More)