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Today, I will talk to you about how to use java security for RSA encryption and decryption process finishing, many people may not know much, in order to let everyone know more, Xiaobian summarized the following content for everyone, I hope you can harvest according to this article.

1. RSA encryption signature generation process [private key encryption] 1.1 preparation parameters encapsulated into Map

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getSignResult method 1.2 Remove elements in Map where value is empty and key is a signature parameter

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Method paraFilter(sParaTemp) in MagCoreUtil 1.3 Generate signature results 1.3.1 Sort parameter keys in ASCII order

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CreateLinkString method in MagCoreUtil 1.3.2 Connect parameters in Map into String according to "parameter = parameter value" mode and with "&" symbol

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CreateLinkString method in MagCoreUtil 1.3.3 Obtain signature result using above string, private key and encoding format

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RSA.sign(prestr, privateKey, inputCharset);1.4 Add signature result and signature method to Map

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buildRequestPara method in MagCoreUtil 2. RSA decryption verification signature process [public key decryption] 2.1 stream reading method to obtain "parameter = parameter value" and "&" connected parameters

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Signature verification code part getPostData method 2.1.1 Spring Boot stream reading parameter method

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https://my.oschina.net/u/3193075/blog/30805522.2 encapsulates the acquired parameters into a Map

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signature verification part transferToMap method 2.3 verify digital signature 2.3.1 remove value is empty and key is sign (signature result) data to obtain a new Map

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ParaFilter2.3.2 in MagCoreUtil sorts the Key of the Map processed above according to ASCII code and encapsulates it into "parameter = parameter value" mode. Connect it with "&" to get StringMethod createLinkString2.3.3 in MagCoreUtil. Use RSA signature verification to check the parameters of String, signature mode, encoding format and public key.

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RSA.verify(src, sign, BdPayCommData.BD_PUBLIC_KEY, charset) method 2.4 Continue Other Business 3. description

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https://gitee.com/YuHuaShan/codes/ewaqxptsri46u1lc53nm097 After reading the above content, do you have any further understanding of how to use java security for RSA encryption and decryption process sorting? If you still want to know more knowledge or related content, please pay attention to the industry information channel, thank you for your support.

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