Photographing and evidence-taking method based on digital digest and digital signature

Abstract

The invention relates to the field of information security and in particular to a photographing and evidence-taking method based on a digital digest and a digital signature. The method adopts the technical scheme which comprises the following steps of: before photo information data are not stored, sending the digital digest of photo information to an evidence registration and preservation server of a third party; forming the digital signature through private key encryption by the evidence registration and preservation server of the third party so as to ensure photo authenticity; before photographing, sending time reference information by the evidence registration and preservation server of the third party; overlapping the photo information data with the time reference information data, calculating and generating the digital digest; and registering the receiving time when the evidence registration and preservation server of the third party receives the digital digest so as to ensure the photographing time authenticity. By adopting the technical scheme, when a photographing terminal photographs a photo, the photo is directly sent to the third party to prove the authenticity of the photo per se and the photographing time, therefore, the probative force of the photographed photo is greatly improved.

Description

technical field [0001] The invention relates to the field of information security, in particular to a method for taking pictures and obtaining evidence based on digital abstracts and digital signatures. Background technique [0002] With the advent of the digital age, traditional film has basically withdrawn from the market, and digital cameras have become the mainstream. At present, many mobile phones are equipped with digital camera functions. Mobile digital cameras may be the most numerous of all digital cameras. It is widely used. The method comes from assistant claims, which can not only reduce the cost of insurance companies, but also facilitate car owners. It is indeed a major innovative move. However, insurance companies also need to guard against possible risks, such as the authenticity of customer on-site inspections, and whether insurance fraud will occur. Digital camera has many advantages, but it also brings many problems at the same time. The biggest problem ...

AI Technical Summary

Problems solved by technology

Digital camera has many advantages, but it also brings many problems at the same time. The biggest problem is the authenticity of photos. Because of the wide application of PS technology (photoshop), the authenticity of digital photos is greatly reduced. Digital photos shown in court The authenticity of the photos may be questioned. At the same time, the time when the photos were taken also plays a crucial role in determining the facts of various disputes.

In terms of ensuring the authenticity of the digital photos taken by the camera, most of the existing technical solutions directly embed the private key in the digital camera, and encrypt the digital abstract of the digital photo through an asymmetric encryption algorithm to form a digital signature. The disadvantages are: 1. Due to the adjustable system time of the camera equipment, the authenticity of the photo shooting time cannot be guaranteed, which lacks sufficient proof; 2. The photo evidence may be lost due to accidental damage to the camera equipment

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