Animated two-dimensional barcode checks

A method, comprising:

• generating, by a device, a signing key;
• receiving, by the device, a certification of the signing key from an online payment service provider, wherein the certification comprises an embedded restriction in the certification on use of the signing key from the online payment service provider;
• capturing, utilizing a camera of the device, at least one two-dimensional merchant barcode comprising encoded data associated with a payment transaction from a merchant device of a merchant, wherein the encoded data in at least one two-dimensional merchant barcode comprises transaction data for the payment transaction;
• decoding, by the device from the data, the captured at least one two-dimensional merchant barcode to determine the transaction data based on at least one decoding process;
• determining, by the device, that the signing key and the certification of the signing key are valid based on the embedded restriction in the certification;
• composing, by the device, a check by importing the decoded transaction data;
• signing, by the device, the check using the signing key and the certification of the signing key;
• generating, by the device, a signed data block based on the signed check, the signing key, and the certification of the signing key;
• determining, by the device, a maximum data size for a single frame displaying a two-dimensional barcode based on the at least one two-dimensional merchant barcode;
• determining, by the device, a plurality of data segments required to display the signed data block based on the maximum data size;
• dividing, by the device, the signed data block based on the maximum data size;
• generating, by the device, the plurality of data segments for a plurality of two-dimensional barcodes based on the dividing;
• encoding, by the device, each of the plurality of data segments to a respective two-dimensional barcode of a plurality of two-dimensional barcodes;
• assigning, by the device, a sequential identifier to each of the encoded respective two-dimensional barcode of the plurality of two-dimensional bar codes;
• and
• sequentially displaying, by the device, the plurality of encoded two-dimensional barcodes by displaying each of the plurality of encoded two-dimensional barcodes individually for a period of time as a currently-displayed barcode and subsequently replacing the currently-displayed two-dimensional barcode with a next two-dimensional barcode after a period of time in accordance with the sequence identifier.

A non-transitory machine-readable medium comprising instructions, which when executed by at least one hardware processor, cause the at least one hardware processor to perform operations comprising:

• generating a signing key;
• receiving a certification of the signing key from an online payment service provider, wherein the certification comprises an embedded restriction in the certification on use of the signing key from the online payment service provider;
• capturing, utilizing a camera, at least one two-dimensional merchant barcode comprising encoded data associated with a payment transaction from a merchant device of a merchant, wherein the encoded data in at least one two-dimensional merchant barcode comprises transaction data for the payment transaction;
• decoding, from the data, the captured at least one two-dimensional merchant barcode to determine the transaction data based on at least one decoding process;
• determining that the signing key and the certification of the signing key are valid based on the embedded restriction in the certification;
• composing a check by importing the decoded transaction data;
• signing the check using the signing key and the certification of the signing key;
• generating a signed data block based on the signed check, the signing key, and the certification of the signing key;
• determining a maximum data size for a single frame displaying a two-dimensional barcode based on the at least one two-dimensional merchant barcode;
• dividing the signed data block based on the maximum data size;
• generating the plurality of data segments for a plurality of two-dimensional barcodes based on the dividing;
• encoding each of the plurality of data segments to a respective two-dimensional barcode of a plurality of two-dimensional barcodes;
• assigning a sequential identifier to each of the encoded respective two-dimensional barcode of the plurality of two-dimensional bar codes;
• and
• sequentially displaying the plurality of encoded two-dimensional barcodes by displaying each of the plurality of encoded two-dimensional barcodes individually for a period of time as a currently-displayed barcode and subsequently replacing the currently-displayed two-dimensional barcode with a next two-dimensional barcode after the period of time in accordance with the sequence identifier.