American Express Travel Related Services Company, Inc.

Andrew Lei

Manish K Deliwala

Wael Ibrahim

Manik Biswas

Subrahmanyam Venakata Vishnuvajhala

Matthew Joseph Castoro

Disclosed are various embodiments for executing entity-specific cryptographic code in a cryptographic coprocessor. In one embodiment, an exemplary method comprises transmitting, from an entity service to a client device, a key identifier and encrypted code that implements a cryptographic algorithm, wherein the encrypted code further includes an encryption key, wherein the key identifier identifies a particular root key that is associated with the entity service and is stored with a cryptographic coprocessor of the client device; receiving, by the entity service from the client device, a cryptogram that includes information encrypted using the cryptographic algorithm and the encryption key; and decrypting, by the entity service, the cryptogram using the encryption key.

Executing entity-specific cryptographic code in a cryptographic

Systems and methods for voice-enabled transactions are disclosed. A merchant system may generate a transaction request comprising a transaction amount and a merchant identifier. The merchant system may invoke an audio signal generator to generate an audio transaction signal comprising the transaction request data. A voice assistant may play the audio transaction signal. The user initiating the transaction may use a mobile device to detect and ingest the audio transaction signal. In response to detecting and ingesting the audio transaction signal, the mobile device may interact with a payment network to authorize, process, and complete the transaction request. The payment network may transmit a transaction approval to the merchant system.

Voice interface transaction system using audio signals

Disclosed are various embodiments for executing entity-specific cryptographic code in a cryptographic coprocessor. In one embodiment, an exemplary method comprises receiving encrypted code that includes implementing a cryptographic algorithm from a service via a network, wherein the encrypted code further includes a symmetric encryption key; decrypting, by a cryptographic coprocessor, the encrypted code; executing, by the cryptographic coprocessor, the decrypted code to generate a cryptogram including information encrypted using the cryptographic algorithm and the symmetric encryption key; and sending the cryptogram to the service via the network.

Executing entity-specific cryptographic code in a cryptographic coprocessor

Wrist band

Disclosed are various embodiments for executing entity-specific cryptographic code in a cryptographic coprocessor. In one embodiment, encrypted code implementing a cryptographic algorithm is received from a service via a network. The cryptographic coprocessor decrypts the encrypted code. The cryptographic coprocessor executes the decrypted code to generate a cryptogram including information encrypted using the cryptographic algorithm. The cryptogram is sent to the service via the network.

Growing community of inventors

Brooklyn, NY, United States of America

Andrew Lei