Method, device and system for verifying encrypted bidding file and storage medium

The invention discloses a method, device and system for verifying an encrypted bidding file and a storage medium, and relates to the technical field of data encryption. The method comprises the following steps: acquiring an encrypted bidding file; when the encrypted bidding file is encrypted through the first CA lock, identification information is generated and comprises an information value of the digital envelope and a hash value of the first secret key; obtaining identification information generated when the encrypted bidding file is encrypted, verifying the encrypted bidding file, decrypting an information value of the digital envelope through a second CA lock to obtain a second key, performing hash calculation on the second key to obtain a hash value of the second key, and verifying the hash value of the first key and the hash value of the second key to obtain the encrypted bidding file. And judging whether the first CA lock is consistent with the second CA lock or not according to the verification resul