Systems and techniques for performing data transfers at a distance

A user device, comprising:

• one or more processors;
• and
• a computer-readable medium comprising instructions that, when executed by the one or more processors, cause the mobile device to perform operations to:
• receive, by an application executed on the user device, an input that causes the application executed on the user device to enter a data transfer mode;
• transmit, by the application executed on the user device, a confirmation response to the computing system via UWB, the confirmation response comprising a first key;
• receive, by the application executed on the user device, a certificate from the computing system via UWB, wherein the certificate comprises the first key and is signed with a second key, and wherein the certificate, the first key, and the second key are used to establish a secure channel between the user device and the computing system in response to a ranging and localization process performed by the computing system;
• and
• perform, by the application executed on the user device and via the secure channel, a data transfer utilizing the data transfer services.

A non-transitory computer-readable medium comprising instructions that, when executed by one or more processors, cause the one or more processors to perform operations comprising:

• receiving, by the application executed on the user device, an input that causes the application executed on the user device to enter a data transfer mode;
• transmitting, by the application executed on the user device, a confirmation response to the computing system via UWB, the confirmation response comprising a first key;
• receiving, by the application executed on the user device, a certificate from the computing system via UWB, wherein the certificate comprises the first key and is signed with a second key, and wherein the certificate, the first key, and the second key are used to establish a secure channel between the user device and the computing system in response to a ranging and localization process performed by the computing system;
• and
• performing, by the application executed on the user device and via the secure channel, a data transfer utilizing the data transfer services.