Techniques for preventing collusion using simultaneous key release

A computing system comprising:

• a processor;
• and
• a memory including instructions that, when executed with the processor, cause the computing system to, at least:
• receive distribution instructions for output data relating to a user of a client device, the distribution instructions comprising an indication of a plurality of data consumers;
• encrypt the output data using a first cryptographic key;
• provide access to the encrypted output data to each of the plurality of data consumers;
• receive, from each of the plurality of data consumers, an indication that the access to the encrypted output data was received by that data consumer;
• and
• posting, a record comprising a plurality of indications that access to the encrypted output data was received by the plurality of data consumers to a blockchain ledger;
• and wherein
• upon confirming with the blockchain ledger that each of the plurality of data consumers has been provided access to the encrypted output data, a second cryptographic key is released to a plurality of private enclaves associated with computing devices operated by the plurality of data consumers, the second cryptographic key used to decrypt the output data.