November 2019
Beginner to intermediate
408 pages
9h 29m
Korean
Content preview from 밑바닥부터 시작하는 비트코인
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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.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.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.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.
3
장
타원곡선 암호
83
앞에서 유한체 연산과 타원곡선에 대해 배웠습니다. 이번에는 타원곡선 암호를 학습합니다. 이
를 위해 앞서 배운 유한체 연산과 타원곡선의 개념을 활용합니다. 구체적으로는 메시지 서명과
검증에 필요한 기본 알고리즘을 이야기하는데 서명과 검증은 비트코인 동작에서 중추에 해당
합니다.
3.1
실수체에서 정의된 타원곡선
2
장에서 타원곡선 함수가 실숫값을 갖는
x
축,
y
축의 좌표평면에서 어떤 모양인지 봤습니다. 여
기서 타원곡선의
x
좌표,
y
좌표 값은 정수나 유리수가 아닌 실수입니다. 실수의 예는
π
,
2
,
e
+
19
1
/
7
등입니다.
실수는 또한 체
field
의 요건을 만족하여 실수체를 이루기 때문에 타원곡선 함수의 변숫값으로 사
용 가능했습니다. 유한체와 다르게 실수체에는 무한의 원소들이 있습니다. 그 점만 제외하고
두 체는 다음과 같은 동일한 성질이 있습니다.
1
.
a
와
b
가 집합의 원소이면
a
+
b
와
a
•
b
도 그 집합의 원소다.
2
.
0
이라는 원소가 존재하고 그 원소는
a
+
0
=
a
성질을 만족한다.
3
.
1
이라는 원소가 존재하고 그 원소는
a
•
1
=
a
성질을 만족한다.
4
.
a
가 어떤 집합의 원소이면 -
a
라는 원소가 또한 그 집합에 존재하며 그 원소는
a
+ (-
a
)
타원곡선 암호
CHAPTER
3
밑바닥부터 시작하는 비트코인
84
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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.