scriptPubKey and scriptSig
First of all two matching scripts are used in two different transactions, one that transfers funds to an address (Transaction A) and one that spends those funds (Transaction B). The scriptPubKey
is created by the user that creates Transaction A. It basically adds a claiming condition to the output that is being created. A user may only claim and thus spend the bitcoins associated with the output if he can prove that he owns the output.
This is where Transaction B and the scriptSig
comes into play. Assuming a user wants to send some funds somewhere. He creates a new transaction, and adds outputs to it until he has enough to cover the desired amount. Now he has to prove that he owns those outputs, which he does by providing the output that is needed to claim them, i.e., the public key matching the address and the signatures with the matching private key.
The sender of Transaction A does not yet know the public key, but does know a hash of the public key, because he knows the address he wants to send to. The address is nothing more than the hash of the public key. So the sender now knows all he needs to be able to send the funds to the receiver.
When the receiver wants to spend the funds again he provides the input to the scriptPubKey
. As you can see the scriptPubKey
consists of taking the public key that was pushed on the stack, duplicating it, hashing it and comparing it to the hash of the public key the output was destined for. If they match we still have both the signature and the public key on the stack, which are used by OP_CHECKSIG
to see whether the input had a valid signature attached.
Take this transaction for example. It claims one output, by providing the public key and the matching signature. It then creates two new outputs and specifies the conditions for the next user to claim them.
https://bitcoin.stackexchange.com/questions/8250/what-is-relation-between-scriptsig-and-scriptpubkey
scriptPubKey and scriptSig的更多相关文章
- bitcoin 源码解析 - 交易 Transaction(三) - Script
bitcoin 源码解析 - 交易 Transaction(三) - Script 之前的章节已经比较粗略的解释了在Transaction体系当中的整体运作原理.接下来的章节会对这个体系进行分解,比较 ...
- 在区块链上表白——使用C#将一句话放入比特币的区块链上
最近在看区块链和比特币的知识,顺便简单研究了一下BitCoin的脚本语言,发现OP_RETURN这个命令可以在后面放入自己想说的内容,很多侧链啊,公证之类就是利用了这个特性,可以把一句话,或者一个哈希 ...
- 如何将Bitcoin比特币区块链数据导入关系数据库
在接触了比特币和区块链后,我一直有一个想法,就是把所有比特币的区块链数据放入到关系数据库(比如SQL Server)中,然后当成一个数据仓库,做做比特币交易数据的各种分析.想法已经很久了,但是一直没有 ...
- cpp 区块链模拟示例(六) 交易
交易(transaction)是比特币的核心所在,而区块链的唯一目的,也正是为了能够安全可靠地存储交易.在区块链中,交易一旦被创建,就没有任何人能够再去修改或是删除它.在今天的文章中,我们会实现交易的 ...
- bitcoin 源码解析 - 交易 Transaction(二) - 原理篇
这篇文章我断断续续写了呃···· 应该快三个星期了? 所以前后的风格可能差别相当大.真是十分的怠惰啊··· 最近实在是不够努力.用python重写bitcoin的项目也卡在网络编程部分(这方面真是我的 ...
- bitcoin源码解析 - 交易 Transcation (一)
比特币中的交易可谓是比特币的最核心部分.比特币由交易产生,而区块就是用来存储交易的.所以,交易是比特币存在的载体,同时也是比特币中最复杂的部分.交易的运作层层相扣,各个部分缺一不可,十分严密,由此体现 ...
- How the Bitcoin protocol actually works
sklearn实战-乳腺癌细胞数据挖掘(博客主亲自录制视频教程) https://study.163.com/course/introduction.htm?courseId=1005269003&a ...
- 比特币运行原理[z]
https://baijiahao.baidu.com/s?id=1581755535769652543&wfr=spider&for=pc 这篇文章主要讲解比特币是什么?它的运行原理 ...
- 比特币pow算法介绍
Proof Of Work 工作量证明 借鉴了 哈希现金(Hashcash)-1997年 英国密码学专家亚当.贝克(Adam Back) 用工作量证明系统解决了互联网垃圾邮件问题,它要求计算机在获得发 ...
随机推荐
- 【NOIP2012】 国王游戏
[题目链接] 点击打开链接 [算法] 按ai * bi升序排序,贪心即可 [代码] #include<bits/stdc++.h> using namespace std; #define ...
- Git如何删除自己创建的项目
版本管理器第二行最右边,找到倒三角,下面的Edit Project,拖动鼠标到最下面,Remove project ,弹出框Confirmation required里面输入项目名字,如项目名字为“w ...
- bzoj2748音量调节——背包
题目:https://www.lydsy.com/JudgeOnline/problem.php?id=2748 怎么会有这样的省选题... 代码如下: #include<iostream> ...
- node --save可以省略掉手动修改package.json的步骤
当你为你的模块安装一个依赖模块时,正常情况下你得先安装他们(在模块根目录下npm install module-name),然后连同版本号手动将他们添加到模块配置文件package.json中的依赖里 ...
- java利用Aspose.words.jar将本地word文档转化成pdf(完美破解版 无水印 无中文乱码)
package doc; import java.io.*; import junit.framework.Test; import com.aspose.words.*; public class ...
- Know the Core Objects of Your App---了解应用程序的内核对象
Back to App Design You develop apps using the Cocoa application environment. Cocoa presents the app’ ...
- App Stroe. 兼容性文案过长
被XCode10坑的头大,和大佬沟通发版到底要不要牺iOS9.2以下用户的时候被大佬一句为什么我们的兼容性这一栏这么长?!!如图: ⏬⏬⏬⏬⏬⏬⏬⏬⏬ 我们家App: b.jpeg
- Mac系统下源码编译安装MySQL 5.7.17
1.下载并解压到:/Users/xiechunping/Softwares/mysql-5.7.17下载地址:http://ftp.ntu.edu.tw/pub/MySQL/Downloads/MyS ...
- 关于TImer使用的注意
晚点再写 停止Timer let timer = .... timer.invalidate()
- 百度之星资格赛 1004 度度熊的午饭时光(01背包+最小序号和+字典序+有bug)
分析 首先声明一下,我的代码有漏洞的,求大神给个正确代码 思路如下: 首先做一遍01背包记录路径并求出最大总分,令path[i][j]表示第i个物品包含在dp[j]的求值过程中.再逆序枚举money, ...