Possible Applications and Legal Significance

This section discusses possible benefits of the new types of signature schemes in applications. It resumes Section 3.1, where some problems with ordinary digital signature schemes were sketched, which can now be described as problems with ordinary security. Hence it is now discussed what advantages other security types may have with respect to the legal and social requirements from Chapter 1. 

It is not hard to imagine that a scheme with information-theoretic security would greatly increase the legal security of digital signatures. However, as mentioned in Section 6.1.5, such schemes are currently impractical and it seems that they will never be very efficient. Hence their social implications are not very relevant. In contrast, practical schemes with fail-stop or dual security exist. Hence the only two topics of this section are 

To rule out misunderstanding The claim in the first topic is not dual security is better than ordinary security . 

1 Possible BeneHts of Dual Security Use in Message Exchange 

Some reasons for making clients information-theoretically secure in a payment scheme are  

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