Questions tagged [bip32]

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is it safe to do public key to public key derivation with Ed25519?

Deriving a public key from a public key in Ed25519 is possible, some algorithms are available. My question is why there are so few implementations compared to secp256k1 for example. The extra checks ...
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What is the maths behind Bitcoin's BIP32?

I've read about BIP32 key derivation functions. I'm trying to understand how, given a secp256k1 key pair, that "child" public keys may be generated from just the public key, and the ...