An information interaction method, comprising: sending, by a first device in response to a need to send an authorization request message to a second device, first security authentication information to the second device, wherein the first security authentication information is configured for the second device to evaluate whether the first device is a trusted device; evaluating, by the first device, whether the second device is a trusted device based on second security authentication information sent by the second device; obtaining, by the first device in response to determining mutual trust with the second device, an authorization pass message sent by the second device based on the authorization request message, wherein the authorization pass message is configured to authorize the first device to access the second device; and sending, by the first device, an access request message to the second device based on the authorization pass message, thereby requesting access to information on the second device, wherein the second security authentication information comprises: a first challenge value; and second trust state information of the second device, and the second trust state information comprises a number of times the second device has been flashed and a root user of the second device; and wherein the method further comprises: sending, by the first device, the second trust state information to a first application on the first device, wherein the first application is configured to evaluate whether the second device is the trusted device based on the second trust state information, and the first application is an application requesting access to the second device. sending, by a first device in response to a need to send an authorization request message to a second device, first security authentication information to the second device, wherein the first security authentication information is configured for the second device to evaluate whether the first device is a trusted device; evaluating, by the first device, whether the second device is a trusted device based on second security authentication information sent by the second device; obtaining, by the first device in response to determining mutual trust with the second device, an authorization pass message sent by the second device based on the authorization request message, wherein the authorization pass message is configured to authorize the first device to access the second device; and sending, by the first device, an access request message to the second device based on the authorization pass message, thereby requesting access to information on the second device, wherein the second security authentication information comprises: a first challenge value; and second trust state information of the second device, and the second trust state information comprises a number of times the second device has been flashed and a root user of the second device; and wherein the method further comprises: sending, by the first device, the second trust state information to a first application on the first device, wherein the first application is configured to evaluate whether the second device is the trusted device based on the second trust state information, and the first application is an application requesting access to the second device. sending, by the first device, the second trust state information to a first application on the first device, wherein the first application is configured to evaluate whether the second device is the trusted device based on the second trust state information, and the first application is an application requesting access to the second device.