Method for image encryption and decryption incorporating physiological features and image capture device thereof

摘要

The disclosure illustrates an image encryption and decryption method using physiological features and image capture device using the same method. The image encryption and decryption method comprises an encryption procedure and a decryption procedure. The encryption procedure comprises following steps. At first, an image capture module is used to capture a plurality of first iris images. An encryption-decryption module is used to generate a first key according to the plurality of first iris images. When an image is generated by the image capture module, the encryption-decryption module encrypts the image with the first key to generate an encrypted image. The decryption procedure comprises following a step of using the encryption-decryption module to decrypt the encrypted image with the first key.

主权项

1. A method for image encryption and decryption which incorporates physiological features, adapted for an image capture device comprising an image capture module, an encryption-decryption module and a processing module, and the method comprising:
executing an encryption procedure which comprises steps of: using the image capture module to capture a plurality of first iris images, respectively; using the encryption-decryption module to generate a first key based on the plurality of first iris images; and controlling the encryption-decryption module to encrypt an image generated by the image capture module with the first key to generate an encrypted image; and executing a decryption procedure which comprises a step of: controlling the encryption-decryption module to decrypt the encrypted image; wherein the first key has a first valid time period, and the processing module permits the image capture module to generate images within the first valid time period.