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Erschienen in:
2009 | OriginalPaper | Buchkapitel
Hash-based Digital Signature Schemes
verfasst von : Johannes Buchmann, Erik Dahmen, Michael Szydlo
Erschienen in: Post-Quantum Cryptography
Verlag: Springer Berlin Heidelberg
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Digital signatures have become a key technology for making the Internet and other IT-infrastructures secure. Digital signatures provide authenticity, integrity, and non-repudiation of data. Digital signatures are widely used in identification and authentication protocols. Therefore, the existence of secure digital signature algorithms is crucial for maintaining IT-security.
The digital signature algorithms that are used in practice today are RSA [31], DSA [11], and ECDSA [15]. They are not quantum immune since their security relies on the difficulty of factoring large composite integers and computing discrete logarithms.