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밑바닥부터 시작하는 비트코인
book

밑바닥부터 시작하는 비트코인

by 류정필, 송재준
November 2019
Beginner to intermediate
408 pages
9h 29m
Korean
Hanbit Media, Inc.
Content preview from 밑바닥부터 시작하는 비트코인
8
장
p2sh 스크립트
219
for _ in range(n):
sec_pubkeys.append(stack.pop())
m = decode_num(stack.pop())
if len(stack) < m + 1:
return False
der_signatures = []
for _ in range(m):
der_signatures.append(stack.pop()[:-1])
➊
stack.pop()
➋
try:
raise NotImplementedError
➌
except (ValueError, SyntaxError):
return False
return True
➊ 각
DER
서명은 해시유형
SIGHASH
_
ALL
로 서명된 것으로 간주합니다.
➋
off
-
by
-
one
버그와 같이 스택 위에서 원소 하나를 더 가져오고 아무 일도 하지 않습니다.
➌ [연습문제
8
.
1
]에서 코딩해야 할 부분입니다.
연습문제
8 .1
op
.
py
파일의
op
_
checkmultisig
함수를 작성하시오.
8.3
다중서명의 문제점
다중서명은 동작은 하지만 비효율적입니다. 어쨌든
n
개 중
m
개의 서명만으로
UTXO
를 사용
할 수 있게 해서 비밀키 하나에 모든 비트코인을 보관하는 단일 실패 지점
single
point
of
failure
을 제
거합니다. 다중서명을 사용하게 하는 많은 유틸리티 ...
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Publisher Resources

ISBN: 9791162248294