Invention Grant
- Patent Title: Verification code generation to improve recognition accuracy by a person and recognition difficulty by a computer program
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Application No.: US16393839Application Date: 2019-04-24
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Publication No.: US10671719B2Publication Date: 2020-06-02
- Inventor: Chao Xiu , Lei Wang , Xing Chen , Chuanzhi Li , Yongzhi Zhang
- Applicant: Alibaba Group Holding Limited
- Applicant Address: KY George Town, Grand Cayman
- Assignee: Alibaba Group Holding Limited
- Current Assignee: Alibaba Group Holding Limited
- Current Assignee Address: KY George Town, Grand Cayman
- Agency: Fish & Richardson P.C.
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@6da40495
- Main IPC: G06F21/36
- IPC: G06F21/36 ; H04L29/06 ; H04L9/08 ; H04L9/32 ; G06F21/31 ; H04W12/06
Abstract:
A verification request is received. In response to receiving the verification request, a first character string is obtained. The first character string comprises one or more variable characters. At least one of the one or more variable characters in the first character string is replaced with at least one backup character to generate a second character string based on multiple pre-established corresponding relationships. A verification code is generated based on the second character string. A user corresponding to the verification request is verified based on a user input corresponding to the verification code.
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