The invention discloses a mobile terminal dynamic
key generation method and an
electronic signature system, and the method comprises the steps: activating a multi-sensor data collection module, obtaining data through an
accelerometer, a
gyroscope and a
magnetometer of a
mobile device, and obtaining a sensor
data matrix through
noise filtering and preprocessing; detecting a network environment and an equipment moving state, analyzing a
security level of a signature document, determining a
security policy according to a document type and a signature mode, and generating an environment evaluation parameter matrix; based on the sensor
data matrix and the environment evaluation parameter matrix, using a data fusion
algorithm and a
hash function to generate a dynamic key, determining key update frequency and
encryption strength according to an environment
risk level, and establishing an
encryption channel;
electronic signature operation is executed, whole-
process safety monitoring is implemented, and authenticity and integrity of the signature are ensured through a multi-
verification mechanism. According to the invention, the safety, reliability and applicability of the mobile
electronic signature system are comprehensively improved.