November 2019
Beginner to intermediate
408 pages
9h 29m
Korean
Content preview from 밑바닥부터 시작하는 비트코인
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8
장
p2sh 스크립트
213
지금까지는 비밀키 하나로 트랜잭션을 생성하거나 여러 입력이 있더라도 하나의 입력에는 하
나의 비밀키만 사용하여 트랜잭션을 생성했습니다. 이제는 더 복잡한 트랜잭션을 살펴보겠습
니다.
1
억 달러어치 비트코인을 보유한 회사는 비밀키 하나로 이 자금을 보관하고 싶지 않을
것입니다. 하나뿐인 비밀키를 분실하거나 도난당하면 모든 자금을 잃어버릴 수 있기 때문입니
다. 비밀키가 바로
단일 실패 지점
single
point
of
failure
이라 할 수 있습니다.
1
이 위험을 줄이려면 어떻
게 해야 할까요?
가능한 해결책은
다중서명
Multisig
방식입니다. 다중서명은 사실 비트코인 초기부터 있었지만 처
음에는 쓰기 좋게 잘 다듬어지지 않아 널리 사용되지 않았습니다. 이 장 뒷부분에서 보겠지만
사토시는 ‘
off
-
by
-
one
’ 버그 때문에 아마도 다중서명 테스트하지 않았던 것 같습니다 (
OP
_
CHECKMULTISIG
Off
-
by
-
One
버그 참고). 이 버그를 없애려면 하드포크해야 하기 때문
에 수정이 미뤄지고 그만큼 버그는 계속 남아 있게 됩니다.
NOTE
_
다중 비밀키와 단일 비밀키
단일비밀키를여러비밀키로쪼개어보관하고원래의단일비밀키로복원하지않고여러비밀키의서명
을모아다중서명방식처럼사용할수있습니다.
2
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.