mirror of
https://github.com/luxfi/crypto.git
synced 2026-07-27 01:54:50 +00:00
Zach Kelling
055a2576ce
- Update copyright headers to 2025 - Standardize Go version to 1.25.1 - Remove toolchain directive
23 lines
636 B
Go
23 lines
636 B
Go
// Copyright (C) 2019-2025, Lux Industries Inc. All rights reserved.
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// See the file LICENSE for licensing terms.
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package secp256k1
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import (
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"crypto/ecdsa"
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"github.com/luxfi/crypto/common"
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)
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// PubkeyToAddress returns the Ethereum address for the given public key
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func PubkeyToAddress(p ecdsa.PublicKey) common.Address {
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pubBytes := make([]byte, 65)
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pubBytes[0] = 0x04 // uncompressed point
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copy(pubBytes[1:33], p.X.Bytes())
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copy(pubBytes[33:65], p.Y.Bytes())
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// Ethereum address is last 20 bytes of Keccak256 hash of public key (excluding prefix)
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hash := Keccak256(pubBytes[1:])
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return common.BytesToAddress(hash[12:])
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}
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