Granted Patent B2

US 12,587,488 · App. 19/179,996 · Granted Mar 24, 2026

Inventors: Anthony McLaughlin (London, GB); Ryan Rugg (New York, NY); Sawyer Uzzell (New York, NY)

Assignee: Citibank, N.A.

H04L47/822H04L67/1097

Abstract

Claims (91)

1 . A system for executing multi-party validations for complex communications across multiple computer networks using bifurcated digital signing processes, the system comprising:

a first node of a cryptographically secure network corresponding to a first sub-participant of a first participant group;

a second node of the cryptographically secure network corresponding to a first participant of the first participant group; and

a non-transitory computer-readable medium having instructions recorded thereon that when executed by one or more processors causes operations comprising:

receiving a first request, at a bifurcated digital signing process hosted at the second node, to perform a first cryptographically secure multi-party validation action on the cryptographically secure network, wherein the first request has a first processing characteristic corresponding to the first node, and wherein the first processing characteristic comprises a variable defined in one or more lines of code of the bifurcated digital signing process;

in response to receiving the first request, processing the first request with a first signing routine of the bifurcated digital signing process, wherein the first signing routine comprises a first function subset defined in the one or more lines of code of the bifurcated digital signing process;

determining, based on the first signing routine, whether the first processing characteristic corresponds to a predetermined processing characteristic by:

determining, based on the first processing characteristic, a notification requirement for the first request, wherein the notification requirement notifies an entity of the first request;

receiving a confirmation that the notification requirement has been satisfied; and

determining that the response satisfies the predetermined processing characteristic; and

in response to determining that the first processing characteristic corresponds to the predetermined processing characteristic, processing the first request with a second signing routine of the bifurcated digital signing process to perform the first cryptographically secure multi-party validation action, wherein the second signing routine comprises a second function subset defined in the one or more lines of code of the bifurcated digital signing process.

2 . A method for executing multi-party validations for complex communications across multiple computer networks using bifurcated digital signing processes, the method comprising:

receiving a first request, at a bifurcated digital signing process, to perform a first multi-party validation action, wherein the first request has a first processing characteristic;

in response to receiving the first request, processing the first request with a first signing routine of the bifurcated digital signing process;

determining, based on the first signing routine, whether the first processing characteristic corresponds to a predetermined processing characteristic by:

determining, based on the first processing characteristic, a security certificate for the first request;

determining, based on the predetermined processing characteristic, a security certificate requirement for the bifurcated digital signing process; and

determining whether the security certificate corresponds to the security certificate requirement; and

in response to determining that the first processing characteristic corresponds to the predetermined processing characteristic, processing the first request with a second signing routine of the bifurcated digital signing process to perform the first multi-party validation action.

3 . The method of claim 2 , wherein processing the first request with the first signing routine of the bifurcated digital signing process further comprises:

determining a first participant group corresponding to the first signing routine; and

verifying a first sub-participant and a first participant corresponding to the first participant group.

4 . The method of claim 2 , wherein determining whether the first processing characteristic corresponds to the predetermined processing characteristic comprises:

determining, based on the first processing characteristic, a request origination for the first request;

determining, based on the predetermined processing characteristic, a request origination requirement for the bifurcated digital signing process; and

determining whether the request origination corresponds to the request origination requirement.

5 . The method of claim 2 , wherein determining whether the first processing characteristic corresponds to the predetermined processing characteristic comprises:

determining, based on the first processing characteristic, a request validator for the first request;

determining, based on the predetermined processing characteristic, a request validator requirement for the bifurcated digital signing process; and

determining whether the request validator corresponds to the request validator requirement.

6 . The method of claim 2 , wherein determining whether the first processing characteristic corresponds to the predetermined processing characteristic comprises:

determining, based on the first processing characteristic, a request validation procedure for the first request;

determining, based on the predetermined processing characteristic, a request validation procedure requirement for the bifurcated digital signing process; and

determining whether the request validation procedure corresponds to the request validation procedure requirement.

7 . The method of claim 2 , wherein determining whether the first processing characteristic corresponds to the predetermined processing characteristic comprises:

determining, based on the first processing characteristic, a request testing protocol for the first request;

determining, based on the predetermined processing characteristic, a request testing protocol requirement for the bifurcated digital signing process; and

determining whether the request testing protocol corresponds to the request testing protocol requirement.

8 . The method of claim 2 , wherein determining whether the first processing characteristic corresponds to the predetermined processing characteristic comprises:

determining, based on the first processing characteristic, a notification requirement for the first request, wherein the notification requirement notifies an entity of the first request;

receiving a confirmation that the notification requirement has been satisfied; and

determining that the response satisfies the predetermined processing characteristic.

9 . The method of claim 2 , wherein determining whether the first processing characteristic corresponds to the predetermined processing characteristic comprises:

determining, based on the first processing characteristic, a supported protocol for the first request;

determining, based on the predetermined processing characteristic, a protocol requirement for the bifurcated digital signing process; and

determining whether the supported protocol corresponds to the protocol requirement.

10 . The method of claim 2 , wherein determining whether the first processing characteristic corresponds to the predetermined processing characteristic comprises:

determining, based on the first processing characteristic, a digital asset type for the first request;

determining, based on the predetermined processing characteristic, a digital asset type requirement for the bifurcated digital signing process; and

determining whether the digital asset type corresponds to the digital asset type requirement.

11 . The method of claim 2 , wherein determining whether the first processing characteristic corresponds to the predetermined processing characteristic comprises:

determining, based on the first processing characteristic, a Know-Your-Customer metric for a first sub-participant of a first participant group;

determining, based on the predetermined processing characteristic, a Know-Your-Customer requirement for the first participant group; and

determining whether the Know-Your-Customer metric corresponds to the Know-Your-Customer requirement.

12 . The method of claim 2 , wherein determining whether the first processing characteristic corresponds to the predetermined processing characteristic comprises:

determining, based on the first processing characteristic, a first key for a first sub-participant in a first participant group in the first multi-party validation action;

determining, based on the predetermined processing characteristic, a first key requirement for the first participant group; and

determining whether the first key corresponds to the first key requirement.

13 . The method of claim 2 , wherein determining whether the first processing characteristic corresponds to the predetermined processing characteristic comprises:

determining, based on the first processing characteristic, a first identity for a first sub-participant in a first participant group in the first multi-party validation action;

determining, based on the predetermined processing characteristic, a labeled identity for the first sub-participant known by a first participant in the first participant group; and

determining whether the first identity corresponds to the labeled identity.

14 . The method of claim 2 , wherein processing the first request with the second signing routine of the bifurcated digital signing process to perform the first multi-party validation action comprises:

determining a Multi-Party Computation (MPC) signature component for the first multi-party validation action corresponding to the first request; and

submitting the Multi-Party Computation (MPC) signature component to complete the first multi-party validation action.

15 . The method of claim 2 , wherein the bifurcated digital signing process is generated based on:

receiving a first uncompiled version of the first signing routine;

receiving a second uncompiled version of the second signing routine; and

compiling the first uncompiled version of the first signing routine and the second uncompiled version of the second signing routine to generate the bifurcated digital signing process.

16 . One or more non-transitory, computer-readable media, comprising instructions that, when executed by one or more processors, cause operations comprising:

receiving a first request, at a bifurcated digital signing process, to perform a first multi-party validation action, wherein the first request has a first processing characteristic;

in response to receiving the first request, processing the first request with a first signing routine of the bifurcated digital signing process;

determining, based on the first signing routine, whether the first processing characteristic corresponds to a predetermined processing characteristic; and

in response to determining that the first processing characteristic corresponds to the predetermined processing characteristic, processing the first request with a second signing routine of the bifurcated digital signing process to perform the first multi-party validation action by:

determining a Multi-Party Computation (MPC) signature component for the first multi-party validation action corresponding to the first request; and

submitting the MPC signature component to complete the first multi-party validation action.

17 . The one or more non-transitory, computer-readable media of claim 16 , wherein processing the first request with the first signing routine of the bifurcated digital signing process further comprises:

determining a first participant group corresponding to the first signing routine; and

verifying a first sub-participant and a first participant corresponding to the first participant group.

18 . The one or more non-transitory, computer-readable media of claim 16 , wherein determining whether the first processing characteristic corresponds to the predetermined processing characteristic comprises:

determining, based on the first processing characteristic, a first identity for a first sub-participant in a first participant group in the first multi-party validation action;

determining, based on the predetermined processing characteristic, wherein the first identity matches a labeled identity for the first sub-participant known by a first participant in the first participant group; and

determining whether the first identity corresponds to the labeled identity.

19 . The one or more non-transitory, computer-readable media of claim 16 , wherein determining whether the first processing characteristic corresponds to the predetermined processing characteristic comprises:

determining, based on the first processing characteristic, a Know-Your-Customer metric for a first sub-participant of a first participant group;

determining, based on the predetermined processing characteristic, a Know-Your-Customer requirement for the first participant group; and

determining whether the Know-Your-Customer metric corresponds to the Know-Your-Customer requirement.

20 . The one or more non-transitory, computer-readable media of claim 16 , wherein determining whether the first processing characteristic corresponds to the predetermined processing characteristic comprises:

determining, based on the first processing characteristic, a first key for a first sub-participant in a first participant group in the first multi-party validation action;

determining, based on the predetermined processing characteristic, a first key requirement for the first participant group; and

determining whether the first key corresponds to the first key requirement.

Assignments (1)

Continuity (16)

References Cited (43)