Decentralized threshold cryptography (DTC) networks have several use cases, including:

1. Secure communication: DTC networks can be used to securely transmit messages between parties without relying on a trusted third party. This can be useful in scenarios where parties want to communicate without the risk of their messages being intercepted or tampered with.
2. Key management: DTC networks can be used to securely manage cryptographic keys without relying on a central authority. This can be useful in scenarios where multiple parties need access to a shared resource, such as a database or a server, but don't want to rely on a single entity to manage access.
3. Digital signatures: DTC networks can be used to generate digital signatures that are distributed across multiple nodes in the network, making it difficult for any one party to forge a signature or compromise the security of the network.
4. Multi-party computation: DTC networks can be used to perform multi-party computations in a secure and decentralized manner. This can be useful in scenarios where multiple parties need to collaborate on a task, such as data analysis, without sharing sensitive information with each other.
5. Access control: DTC networks can be used to control access to resources by requiring multiple parties to agree before granting access. This can be useful in scenarios where sensitive data or resources need to be protected from unauthorized access.

Overall, DTC networks offer a way to achieve high levels of security and privacy while also maintaining decentralization and trustlessness, which can be particularly useful in settings where trust is difficult to establish or maintain.