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bitcoin public key vs public key hash vs. pub key [duplicate]

I am not talking about the privacy related concerns just the security aspect and the ability for someone to 'break my private key'. The addresses that my wallet generates are p2pkh addresses. If i ...
4
votes
2answers
488 views

How did pay-to-pubkey hash come about? What is its history?

We know that early blocks all used pay-to-pubkey (p2pk) and at some point, we mostly switched to pay-to-pubkey-hash (p2pkh). What is the history behind this? Who made the changes and when did p2pkh ...
9
votes
3answers
2k views

Why is P2PKH used instead of the simpler P2PK?

If elliptic curve cryptography is secure enough to be able to give away a public key without fear of anyone being able to calculate our private key from it, what's the reason for hashing our public ...
4
votes
1answer
656 views

Trying to understand Pay-to-Public-Key-Hash

I am new to bitcoin and I am trying to understand Pay-to-Public-Key-Hash (P2PKH) from the book: Mastering Bitcoin: Unlocking Digital Cryptocurrencies (p. 127). I understand that digital keys (which ...
15
votes
2answers
4k views

Why do you use Bitcoin addresses instead of public keys?

Why do you hash the public key twice? Are there security benefits to abstracting away from the public key? Is it because the address can represent multiple things? I'm missing something. Could you ...