Abstract: Broadly speaking, embodiments of the present techniques provide systems and methods for authenticating users using distributed identity documents, and in particular to systems and methods for multi-party authentication of users using distributed identity documents for enhanced security.

Abstract: Broadly speaking, embodiments of the present techniques provide methods and systems to enable a user to securely and privately share their data with selected third parties in a way that ensures the user retains at least some control over their data at all times. Thus, the present techniques enable a user to benefit from the results of sharing their data (e.g. access to health related products or services kudos or a reward), without losing control of their data and without unauthorised use of their data. A user may add user data items into a storage and may specify for each user data item a permission setting that specifies whether or not the user data item may be shared, who it can be shared with or for what purpose it can be shared. A third party who is granted access to a user data item is able to access the user data item via a secure portal, but is not able to remove, download or copy the data item from the storage itself. Thus, unauthorised use or sharing of user data is prevented.

Abstract: Broadly speaking, embodiments of the present techniques provide methods and systems to enable a user to securely share user information with a third party. The user information is based on a user data item, but the user data item itself is kept secret and not shared with the third party. The present techniques generate a digital attestation or verifiable credential containing the user information to Receiving an attestation request for a fact be shared.