Methods and systems for retrieving zero-knowledge proof-cloaked data on distributed ledger-based networks

A method performed by at least one processor, the method comprising:

• receiving, at a compute node of an auditor, a request to have a transaction audited, the transaction being represented on a zero-knowledge proof (ZKP)-enabled distributed ledger-based network (DLN) and being between a first party and a second party;
• retrieving, in response to the request and from the ZKP-enabled DLN, encrypted data and an encrypted encryption key,
• the encrypted data including data related to the transaction and encrypted using an encryption key,
• the encrypted encryption key being formed by an encryption of the encryption key using a public key retrieved from the ZKP-enabled DLN, the public key associated with the auditor and being part of an asymmetric key pair on the ZKP-enabled DLN;
• decrypting, using a private key of the asymmetric key pair, the encrypted encryption key to obtain the encryption key;
• and
• decrypting the encrypted data using the encryption key to obtain the data related to the transaction for use in auditing the transaction,
• the transaction including a transfer of a token representing a fungible asset from the first party to the second party or a generation of an asset token representing a non-fungible asset to be transferred from the first party to the second party,
• a self-executing code segment on the ZKP-enabled DLN verifying a ZKP that the encrypted data include (1) a public key of the first party, (2) a public key of the second party, and (3) an amount of the token representing the fungible asset or an identifier of the asset token representing the non-fungible asset,
• the transaction being audited by the auditor using at least one of the encrypted encryption key or the encrypted data, without a private key of the first party on the ZKP-enabled DLN and a private key of the second party on the ZKP-enabled DLN being provided to the auditor.

A method performed by at least one processor, the method comprising:

• receiving, at a self-executing code segment on a zero-knowledge proof (ZKP)-enabled distributed ledger-based network (DLN), an encrypted data and an encrypted encryption key,
• the encrypted data encrypted with a use of an encryption key and including data related to a transaction represented on the ZKP-enabled DLN and between a first party and a second party,
• the encrypted encryption key encrypted with a use of a public key retrieved from the ZKP-enabled DLN and associated with an auditor assigned to audit the transaction, the transaction including a transfer of a token representing a fungible asset from the first party to the second party or a generation of an asset token representing a non-fungible asset to be transferred from the first party to the second party;
• receiving, at the self-executing code segment, a zero-knowledge proof (ZKP) that the encryption key used to encrypt the data corresponds to the encryption key encrypted using the public key;
• verifying the received ZKP, the ZKP includes the ZKP that the encrypted data include (1) a public key associated with the first party on the ZKP-enabled DLN, (2) a public key associated with the second party on the ZKP-enabled DLN, and (3) an amount of the token representing the fungible asset or an identifier of the asset token representing the non-fungible asset;
• and
• storing, after the received ZKP is verified, the encrypted data and the encrypted encryption key such that the stored encrypted data and encrypted encryption key are retrievable without a private key of the first party on the ZKP-enabled DLN and a private key of the second party on the ZKP-enabled DLN being provided to the auditor, such that the auditor audits the transaction using at least one of the stored encrypted data or the encrypted encryption key.

A processor-readable non-transitory medium storing processor-issuable instructions configured to:

• encrypt, using an encryption key, data related to a transaction between a first party and a second party to generate an encrypted data, the data transaction represented on a zero-knowledge proof (ZKP)-enabled distributed ledger-based network (DLN);
• encrypt the encryption key using a public key retrieved from the ZKP-enabled DLN to generate an encrypted encryption key, the public key associated with an auditor assigned to audit the transaction;
• and
• provide to a self-executing code segment on the ZKP-enabled DLN a ZKP that the encryption key used to encrypt the data corresponds to the encryption key encrypted using the public key such that the encrypted encryption key and the encrypted data are available to the auditor after the ZKP is verified by the self-executing code segment,
• the transaction including a transfer of a token representing a fungible asset from the first party to the second party or a generation of an asset token representing a non-fungible asset to be transferred from the first party to the second party,
• the ZKP including the ZKP that the encrypted data include (1) a public key of the first party, (2) a public key of the second party, and (3) an amount of the fungible token representing the fungible asset or an identifier of the asset token representing the non-fungible asset,
• at least one of the encrypted encryption key or the encrypted data being available to the auditor without a private key of the first party on the ZKP-enabled DLN and a private key of the second party on the ZKP-enabled DLN being provided to the auditor, such that the auditor audits the transaction using the at least one of the encrypted encryption key or the encrypted data.