Information retention period refers to the time when electronic documents and electronic signature authentication certificates can be reliably stored and read in a safe and reliable environment. In electronic bidding, the setting of information retention period is very important, because it is related to the validity and traceability of electronic documents and electronic signature authentication certificates.

According to the regulations, the information should be kept for at least five years after the expiration of the electronic signature certification certificate. This means that in the process of electronic bidding, all involved electronic documents and electronic signature certificates must be properly preserved within five years to ensure their safety and traceability.

The setting of information retention period needs to consider many factors. First of all, it is necessary to ensure that electronic documents and electronic signature authentication certificates can be reliably read and verified within the validity period. If the storage environment is unsafe or the reading method is incorrect, it may lead to file damage or certificate invalidation, thus affecting the smooth progress of the whole bidding.

Secondly, the traceability of electronic documents and electronic signature certificates after expiration should be considered. In electronic bidding, if there is a dispute or dispute, it is necessary to verify and trace the relevant documents and vouchers. If the storage period of information is too short, it may lead to the failure to trace back to relevant documents and vouchers, thus affecting the handling of disputes or disputes.

Finally, the setting of information retention period needs to consider the requirements of laws and regulations. In some countries and regions, the law stipulates that certain types of documents must be kept for a certain number of years to ensure their traceability and legitimacy. When setting the information retention period, the requirements of these laws and regulations must be met to ensure the legality and traceability of the documents.

In a word, it is required to keep the electronic signature certificate for at least five years after it expires, in order to ensure the safety and traceability of the electronic documents and electronic signature certificates involved in the electronic bidding process. In practice, it is necessary to comply with the requirements of relevant laws and regulations to ensure the legality and traceability of files, and at the same time, it is necessary to consider the storage environment and reading methods of files to ensure the reliability and integrity of files.