Transaction code generation method, device and system and processing method, device and system based on transaction code

The invention provides a transaction code generation method, device and system and a processing method, device and system based on a transaction code, and the method comprises the steps: receiving a transaction code application transmitted by a first terminal, and the transaction code application carries the transaction information of the first terminal; generating a preset sequence according to the transaction code application and the transaction code resource; encrypting the preset sequence according to a preset encryption algorithm to generate a target transaction code; and sending the target transaction code to the first terminal. By utilizing the method, the target transaction code with high randomness can be generated, and the generation space of the target transaction code is expanded. 本发明提供了交易码生成、基于交易码的处理方法、装置及系统，该交易码生成方法包括：接收第一终端发送的交易码申请，交易码申请携带第一终端的交易信息；根据交易码申请和交易码资源，生成预设序列；根据预设加密算法对预设序列进行加密处理，生成目标交易码；向第一终端发送目标交易码。利用上述方法，能够生成随机性高的目标交易码，且扩大了目标交易码的生成空间。