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Converts a public key point to its corresponding Ethereum address. The Ethereum address is calculated by taking the Keccak-256 hash of the public key coordinates and taking the last 20 big-endian bytes.

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Signature

pub fn public_key_point_to_eth_address,
    +Secp256Trait,
    +Secp256PointTrait,
>(
    public_key_point: Secp256Point,
) -> EthAddress

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Arguments

  • public_key_point - A point on a secp256 curve representing a public key

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Returns

The 20-byte Ethereum address derived from the public key

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Examples

use starknet::eth_signature::public_key_point_to_eth_address;
use starknet::secp256k1::Secp256k1Point;
use starknet::secp256_trait::Secp256Trait;

let public_key: Secp256k1Point = Secp256Trait::secp256_ec_get_point_from_x_syscall(
    0xa9a02d48081294b9bb0d8740d70d3607feb20876964d432846d9b9100b91eefd, false,
)
    .unwrap()
    .unwrap();
let eth_address = public_key_point_to_eth_address(public_key);
assert!(eth_address == 0x767410c1bb448978bd42b984d7de5970bcaf5c43.try_into().unwrap());