Abstract: Systems and techniques are described herein for offloading cryptographic services. For example, a method may include receiving a request to provide a cryptographic service type and initiating a cryptographic algorithm in a cryptographic hardware component, where the cryptographic algorithm is associated with the cryptographic service type. The method may further include applying a cryptographic operation to data to obtain a cryptographic result. The cryptographic operation is associated with the cryptographic algorithm. The method may further include storing at least a portion of the cryptographic result in a hardware register of the cryptographic hardware component. The cryptographic result is configured for use for performing a cryptographic action.

Abstract: An offline authentication of batteries includes communicating an encrypted authentication request to secondary batteries and a vehicle controller by a primary battery of an electric vehicle. The encrypted authentication request is decrypted to obtain a first random number and a fleet flag. An encrypted authentication response, including a first random number, a second random number, and a vehicle identifier, is communicated to each battery. Each battery verifies the first random number and the vehicle identifier. An encrypted battery status, including the first and second random numbers and an authentication status, is communicated to the primary battery that verifies the first and second random number and the authentication status. The primary battery communicates an encrypted authentication message to the secondary batteries and the vehicle controller. The secondary batteries and the vehicle controller verify the first and second random numbers and the authentication status for authenticating each battery.

Abstract: An offline mutual authentication method for battery swapping includes communicating a first authentication request to a battery by a computing device associated with a battery charger. A first authentication response is communicated to the computing device. The first authentication response is verified, and a first challenge request is communicated to the battery. A first challenge response is communicated to the computing device. The first challenge response is verified, and a battery authentication status is communicated to the battery. A second authentication request is communicated to the computing device. A second authentication response is communicated to the battery. The second authentication response is verified, and a second challenge request is communicated to the computing device. A second challenge response is communicated to the battery. The second challenge response is verified, and a charger authentication status is communicated by the battery to the computing device.

Abstract: An offline mutual authentication method for battery swapping includes communicating a first authentication request to a battery by a computing device associated with a battery charger. A first authentication response is communicated to the computing device. The first authentication response is verified, and a first challenge request is communicated to the battery. A first challenge response is communicated to the computing device. The first challenge response is verified, and a battery authentication status is communicated to the battery. A second authentication request is communicated to the computing device. A second authentication response is communicated to the battery. The second authentication response is verified, and a second challenge request is communicated to the computing device. A second challenge response is communicated to the battery. The second challenge response is verified, and a charger authentication status is communicated by the battery to the computing device.

Abstract: An offline authentication of batteries includes communicating an encrypted authentication request to secondary batteries and a vehicle controller by a primary battery of an electric vehicle. The encrypted authentication request is decrypted to obtain a first random number and a fleet flag. An encrypted authentication response, including a first random number, a second random number, and a vehicle identifier, is communicated to each battery. Each battery verifies the first random number and the vehicle identifier. An encrypted battery status, including the first and second random numbers and an authentication status, is communicated to the primary battery that verifies the first and second random number and the authentication status. The primary battery communicates an encrypted authentication message to the secondary batteries and the vehicle controller. The secondary batteries and the vehicle controller verify the first and second random numbers and the authentication status for authenticating each battery.