Abstrakt: |
There are many different types of digital signature schemes and each type has its own characteristics, usage benefits, and drawbacks. Some of these signature schemes can be described as anonymous digital signatures, and they all differ in some way from the types of signatures we may be most familiar with. Those familiar types could be described as "ordinary signatures." They are associated with X.509 digital certificates and the SignedData type defined in the Cryptographic Message Syntax (CMS) standards widely used in the financial services (X9.73), in the IETF to implement secure electronic mail, or more recently as the new ITU Recommendation X.894 that standardizes CMS for the telecommunications industry. Though anonymous digital signatures have been around for quite a while and implemented in many products, there is now a renewed interest of their application in new and emerging technologies such as electronic voting, cryptocurrencies, blockchains, distributed ledgers, payments, and smart contracts. [ABSTRACT FROM AUTHOR] |