Blockchain/Distributed Ledger

Blockchain improves cloud security by improving data security, specifically the confidentiality (privacy), integrity and availability of data. Depending on the Blockchain solution and technology used you can set the needed security levels for the system as a whole but down to the individual record level as needed. Because cloud computing often involves the outsourcing of trust to a provider (that runs your IT infrastructure, stores your data, etc.) new ways of ensuring data security are needed. Blockchain technologies offer a high degree of customization. You can build fully private, public, and mixed blockchains. You can choose the consensus mechanisms for transaction processing and dispute resolution as well as the governance model so that they fit your needs and regulatory requirements. Additional capabilities such as Smart Contracts and Smart Assets can be added allowing for a rich ecosystem to be developed to support the business needs now, and in future.

What are the security issues with blockchain? Like any complex technology, most Blockchain/DLT systems suffer from new security issues. The CSA currently has a draft listing of almost 200 weaknesses and vulnerabilities in Blockchain technology, many of which are not fully understood or documented at this time. As part of our work we are attempting to classify and publicize these weaknesses and allow other industry efforts (such as CWE, https://cwe.mitre.org) to leverage them.