Method and system for data security and verification

A data exchange system comprising:

• a data exchange computer comprising
• a first processor and
• a first non-transitory computer readable medium, the first non-transitory computer readable medium comprising first code, executable by the first processor for performing first operations comprising,
• transmitting, via an API (application programming interface), a first encrypted data contract and one or more encrypted tokens to a data consumer computer;
• the data consumer computer comprising a second processor and a second non-transitory computer readable medium comprising second code, executable by the second processor for performing second operations comprising,
• decrypting the first encrypted data contract with a private key of the data consumer computer to obtain a data contract, encrypting the data contract with a public key of a data producer computer to create a second encrypted data contract, and transmitting the second encrypted data contract and the encrypted one or more tokens to the data producer computer;
• and
• the data producer computer, the data producer computer comprising a third processor and a third non-transitory computer readable medium, the third non-transitory computer readable medium comprising third code, executable by the third processor for performing third operations comprising providing data mentioned in the data contract to the data consumer computer, decrypting the second encrypted data contract with the private key of the data producer computer to obtain the data contract, decrypting the encrypted one or more tokens with the private key of the data producer computer to obtain one or more tokens, encrypting the one or more tokens and encrypting the data contract with the public key of the data exchange computer to form a third encrypted data contract, and transmitting the encrypted one or more tokens and the third encrypted data contract to the data exchange computer,
• wherein the first operations further comprise
• receiving the encrypted one or more tokens and the third encrypted data contract,
• decrypting the third encrypted data contract and the encrypted one or more tokens with the private key of the data exchange computer,
• verifying the one or more tokens, and
• facilitating an action of the data contract.