Abstract: Techniques are described for using a distributed ledger system (DLS) to manage transactions such as the trading of assets between entities. In some implementations, a platform provides a mechanism in which multiple institutions can participate in a dark pool for trading assets. The platform employs a DLS to support a dark pool that provides data privacy to the participating institutions, anonymity to the trading entities, data security, immutability, and transparency for auditing and regulatory compliance. Through a dark pool supported by a DLS, multiple institutions can benefit from a shared dark pool, thus increasing the number of parties who can participate in the trading activities, increasing the quantity of assets available to be traded, and increasing the likelihood of matching seller(s) to buyer for a particular trade. The DLS ensures that the information in the dark pool is kept secure and confidential, through homomorphic encryption and/or zero knowledge proof.