Patent ID: 9672514
Date: 2017-06-06
CPC Classifications: G06Q

Claim:
1. A method performed by a first computer system associated with a first party, the first computer system comprising a processor and a memory encoded with program instructions that, when executed by the processor, cause the processor to perform the method, the method comprising: receiving a first hash of a first message from a second computer system associated with a second party, the first hash being generated by the second computer system, the first message comprising content encrypted by a third party with a first key associated with the third party, receiving an encrypted message from the second computer system, the encrypted message being generated by the third party and comprising a second hash of the first message and the first key, the encrypted message being encrypted using a second key associated with the first party by the third party; decrypting the encrypted message using the second key to generate a decrypted second hash and decrypted first key; determining that the first hash and the decrypted second hash are equal; and based on the determination, sending an indication to a third computer system associated with the third party that the content was received by the second party.