Abstract: Magnetic stripe readers that are configured to extract information from magnetic media and encrypt part of the extracted information are provided. Embodiments of magnetic stripe readers include measures to resist tampering and inputs to receive unencrypted information from input devices. One embodiment includes a housing containing a magnetic reading head connected to a decoder circuit that is connected to an encryption engine. The magnetic reading head generates a signal indicative of a magnetic field. The decoder circuit is configured to extract data from the output of the magnetic reading head and the encryption engine is configured to encrypt a portion of the extracted data and the encryption engine is configured to pass a portion of the extracted data unencrypted.

Abstract: Systems and methods for encrypting the output of a card reader in a card authentication system are provided. In one embodiment, the invention relates to a method for reading a data card having an intrinsic magnetic characteristic and recorded data on the data card using a read head including a magnetic sensor having a housing, an analog to digital converter located within the housing and a processor located within the housing, the method including generating an analog signal indicative of the intrinsic magnetic characteristic and the recorded data of the data card, converting the analog signal into a digital signal, generating a magnetic fingerprint based on the intrinsic magnetic characteristic from the digital signal, extracting the recorded data from the digital signal, encrypting at least a portion of the recorded data, storing the magnetic fingerprint and the recorded data, and outputting the encrypted at least the portion of the recorded data.

Abstract: A card reader for use in web based transactions is provided. In one embodiment, the invention relates to a method for establishing a secure connection between a card reader and a server, the method including receiving a first challenge request, generating a response to the first challenge request using a first encryption key, sending the response to the first challenge request, sending a second challenge request, receiving an encrypted response to the second challenge request, verifying the encrypted response to the second challenge request; and, if the encrypted response is verified, reading data card information from a data card, the data card information including an intrinsic magnetic characteristic and recorded data on the data card, generating a magnetic fingerprint based on the intrinsic magnetic characteristic, and sending the magnetic fingerprint to authenticate the data card.

Abstract: Systems and methods for encrypting the output of a card reader in a card authentication system are provided. In one embodiment, the invention relates to a method for reading a data card having an intrinsic magnetic characteristic and recorded data on the data card using a read head including a magnetic sensor having a housing, an analog to digital converter located within the housing and a processor located within the housing, the method including generating an analog signal indicative of the intrinsic magnetic characteristic and the recorded data of the data card, converting the analog signal into a digital signal, generating a magnetic fingerprint based on the intrinsic magnetic characteristic from the digital signal, extracting the recorded data from the digital signal, encrypting at least a portion of the recorded data, storing the magnetic fingerprint and the recorded data, and outputting the encrypted at least the portion of the recorded data.

Abstract: A card authentication system. In one embodiment, the invention relates to a method for authenticating a data card having an intrinsic magnetic characteristic and recorded data on the data card, the method including reading information from the data card, the data card information including the intrinsic magnetic characteristic and the recorded data on the data card, encrypting the data card information, sending the encrypted data card information, receiving the encrypted data card information, decrypting a portion of the encrypted data card information, the portion including the intrinsic magnetic characteristic, generating a score indicative of a degree of correlation between the intrinsic magnetic characteristic of the data card information and a stored value, and determining an authenticity of the data card based at least in part on the score.

Abstract: A card reader for use in web based transactions is provided. In one embodiment, the invention relates to a method for establishing a secure connection between a card reader and a server, the method including receiving a first challenge request, generating a response to the first challenge request using a first encryption key, sending the response to the first challenge request, sending a second challenge request, receiving an encrypted response to the second challenge request, verifying the encrypted response to the second challenge request; and, if the encrypted response is verified, reading data card information from a data card, the data card information including an intrinsic magnetic characteristic and recorded data on the data card, generating a magnetic fingerprint based on the intrinsic magnetic characteristic, and sending the magnetic fingerprint to authenticate the data card.