Microsoft Technology Licensing, LLC

Ronald John Kamiel Eurphrasia Bjones

Ankur Patel

Brandon Brian Murdoch

Daniel James Buchner

Nithya Ganesh

Permitting a claims holder to get a limited verifiable credential leveraging off of a previously-issued verifiable credential. This is done by having the limited verifiable credential include only a selected subset of the verifiable claims present within the previously-issued verifiable credential. The limited verifiable credential may then be exposed to a relying entity computing system so that the relying entity computing system can verify any of the selected subset of verifiable claims, but not verifiable claims that are outside of the selected subset of verifiable claims.

Verifiable credential with dynamic claim

Derived child verifiable credential with selective claims

Using an association data structure corresponding to a derived decentralized identifier of a subject entity to share a verified claim about the subject entity to one or more relying entities. A decentralized identifier of a subject entity is derived from a source decentralized identity of the subject entity. Next, an association data structure is created using the derived decentralized identifier. The association data structure is structured to be interpretable by a relying entity as demonstrating that a verified claim is about the derived decentralized identity. The relying entity is then caused to be provided the verified claim about the subject entity. The verified claim includes the association data structure that was created using the derived decentralized identifier.

Binding of decentralized identifiers to verified claims

Encrypting and sharing one or more data objects stored or to be stored in a personal storage that is associated with a DID. First an encryption/decryption key is generated using a passphrase and an identifier of the personal storage that stores or is to store a data object in the personal storage. The data object stored or to be stored in the personal storage is then encrypted by the generated encryption/decryption key. The encrypted data object is then stored in the personal storage. The encrypted data object may then be accessed by a DID management module that is configured to manage the DID or be shared to another entity that is not associated with the DID.

Encrypting data associated with decentralized identifier

Generation of a cryptographic key using one of multiple possible entropy generation components that may provide input entropy. A key generation component provides an interface that exposes one or more characteristics for input entropy to be used to generate a cryptographic key. For applications that are more sensitive to improper key discovery, higher degrees of input entropy may be used to guard against key discovery. During key generation, the key generation component connects with an appropriate entropy generation component via the interface. For instance, the entropy generation component may be selected or adjusted so that it does indeed provide the input entropy meeting the characteristics described by the interface. The key generation component receives the input entropy via the interface, and then uses the input entropy to generate the cryptographic key.

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Dilbeek, Belgium

Ronald John Kamiel Eurphrasia Bjones