Blockchain-based information processing method and apparatus and computer-readable storage medium

A computing device acting as a network node device for implementing a blockchain-based information processing method, comprising a memory and a processor,

• the memory being configured to store a plurality of programs;
• the processor being configured to execute the plurality of programs in the memory, to implement a plurality of operations including:
• obtaining an original index information set, the original index information set comprising at least one piece of original index information, each piece of original index information comprising plaintext sensitive content;
• obtaining information in to-be-matched blocks in a blockchain system, the information comprising information content and an information index, the information content having a correspondence with the information index;
• matching the information content in the information by using the original index information set, to obtain a matching result;
• and
• determining a variant index information set when the matching result indicates that the matching succeeds, the variant index information set comprising at least one piece of variant index information, the variant index information comprising the information index corresponding to the information content in the information.

A non-transitory computer-readable storage medium, comprising instructions, the instructions, when executed on a computing device acting as a network node device for implementing a blockchain-based information processing method, causing the computing device to implement a plurality of operations including:

• obtaining an original index information set, the original index information set comprising at least one piece of original index information, each piece of original index information comprising plaintext sensitive content;
• obtaining information in to-be-matched blocks in a blockchain system, the information comprising information content and an information index, the information content having a correspondence with the information index;
• matching the information content in the information by using the original index information set, to obtain a matching result;
• and
• determining a variant index information set when the matching result indicates that the matching succeeds, the variant index information set comprising at least one piece of variant index information, the variant index information comprising the information index corresponding to the information content in the information.