Mobile Platform as a Service:Gateway signature mechanism introduction

To prevent client requests from being tampered or forged, a signature mechanism is used for RPC requests. The RPC module automatically implements the signing functions.

The basic signing and signature verification process is as follows:

1. Convert the requestBody content to a character string.
2. Use the Security Guard module to sign the character string with the encryption key stored in the encryption image (Security Guard image).
3. Send the encrypted signature in the request to the gateway.
4. The gateway signs with the same method. The system then checks whether the two signatures are consistent.