This article mainly provides a more detailed explanation of the android signature part, aiming to understand the overall usage system of signatures and the common usage of keytool and apksigner, focusing on practical significance. 1 Understanding of signature (V1 V2 V3 V4 signature) In Android application signatures, V1 V2 V3 V4 signatures are different signature […]
Tag: signature
SpringBoot interface signature verification practice
Technology Old Boy 2023-10-24 08:23 Published in Guangdong included in collection #java215 #Springboot135 #Architecture/System Design 145 Technical Old Boy Share every bit of technology on the road, focus on back-end technology, and help developers grow. Welcome to pay attention. 54 pieces of original content No public 1Concept Open interface Open interfaces refer to interfaces that […]
vue [SM2 (encryption-decryption | encryption, signature verification), SM4 (encryption-decryption), Base64 (encryption-decryption), MD5 encryption, RSA encryption/decryption, encryption/decryption]
1.SM2 1. Project root directory installation: SM2 component npm install –save sm-crypto 2. Encryption and decryption // Get SM2 object const sm2 = require(‘sm-crypto’).sm2; const cipherMode = 1 // 1 – C1C3C2, 0 – C1C2C3, default is 1 // public key var publicKeyServer = ‘xxxxxxxxxxx’; // private key var privateKeyWeb = ‘xxxxxxxx’; //If the encrypted […]
SpringBoot interface signature verification practice
1Concept Open interface Open interfaces refer to interfaces that are allowed to be called by third-party systems without requiring login credentials. In order to prevent open interfaces from being called maliciously, open interfaces generally require signature verification before they can be called. Systems that provide open interfaces are collectively referred to as “original systems” below. […]
Network connection receipt message signature verification and sensitive information decryption error: failed to construct sequence from byte[]: corrupted stream detected [National Secret SM2]
Network connection receipt message signature verification and sensitive information decryption error: failed to construct sequence from byte[]: corrupted stream detected [National Secret SM2] Signature verification problem scenario parameters: Use BC package version 1.57 to convert the network signature value format: ASN.1(R,S) to the encryption machine signature value format: RS. The process reports an error. Network […]
The difference between RSA encryption and signature
Article directory 1. Principle of signature verification 2. RSAUtils tool class 3. Obtain the basic information of the CA certificate through x509Certificate 4. Obtain the public key length through the public key 1. Principle of signature verification The essence of a signature is actually encryption, but since the signature does not need to be restored […]
Android application development practice-implement handwritten signature function in your own App
Due to the need for informatization, colleagues in my company hope to develop a mobile app that can be used to issue on-site penalties for violations discovered during grassroots inspections, instead of paper tickets. One of the software development requirements requires inspection units and inspected units to perform handwritten electronic signatures on mobile phones. It […]
WPF implements signature photo function
?About the author: 2022Blog Rising StarEighth. A Java back-end developer who loves Chinese studies, he cultivates his mind and improves his technology simultaneously. Personal homepage: Java Fans’ blog Personal creed: Don’t express your anger and never make mistakes. Little knowledge, great wisdom. Current column: WPF case and knowledge sharing column ?Featured column: Fun Chinese Studies-The […]
JavaScript implements handwritten signatures, can be handwritten on the touch screen, and supports dual-end saving on mobile and PC.
Table of Contents 1.HTML template 2. Get DOM elements and define variables 3. Create two canvas elements and set their width and height 4. Bind touch events: touchstart, touchmove, touchend and click 5. Implement touch event callback functions: startDrawing, draw and stopDrawing 6. Implement the function of drawing line segments: drawLine 7. Implement the function […]
Mobile signature component encapsulation borrowing plug-in vue-esign
Directory need Implementation explanation Tools – Image rotation, base64 conversion to file object Component encapsulation Component global registration Component usage Show results Requirements The mobile terminal needs to realize the function of handwriting signature and uploading signature image in horizontal screen of the mobile phone. Implementation explanation vue-esign Plug-in document address https://www.npmjs.com/package/vue-esign SignCanvas component encapsulation […]