The invention discloses a zero-contact identity transfer and login-free
verification method and
system based on a dynamic token, and the method comprises the steps: a platform obtains and audits the related information of a to-be-audited application submitted by a three-party
system, issues the corresponding related information of the application, generates a key pair based on a random number and a current
timestamp, and transmits the key pair to a
server; the platform holds the private key and sends the public key to the DNS
server; the platform obtains and analyzes a login request of a user, generates token related information, signs based on a private key, encrypts and updates a dynamic token, obtains an encrypted dynamic token, and sends the encrypted dynamic token to a DNS
server; constructing an intelligent
proxy service module, intercepting the login request, obtaining the encrypted dynamic token, and decrypting the encrypted dynamic token to obtain token related information; the token related information is verified, a bidirectional TLS channel is constructed, and a temporary
session key is generated; and the information is transmitted to a three-party
system through a TLS channel so as to complete login-
free access. According to the invention, login-
free access can be realized.