xpub(extended public key)

: 나의 니모닉에 귀속된 모든 주소를 생성할 수 있음

→ 모든 지갑 데이터, 거래 내역(트랜잭션)을 볼 수 있음(watching-only wallet)

→ 니모닉/개인키 없이 비트코인을 옮길 수는 없지만, 익명성/보안을 중대하게 해치기 때문에 비공개로 유지하며 ‘절대 공유 금지’

A xpub, stands for "extended public key".

→ The key that generates all your addresses, thus one can get all your wallet data and transactions.

→ This key should remain private and never be shared.

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#Bitcoin 공부할 것 a list for studying

• Compressed vs. uncompressed keys

• Master private key, master public key, master chain code

• Parent vs. child keys

• BIP44, BIP84, BIP49, BIP43

• Digital signatures

• Encodings, Hash functions

• Elliptic curve cryptography

• UTXOs

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☑️ Extended Public Key (xPub), Extended Private Key (xPrv)

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