Ethereum: Creating Unique Addresses Based on Human Readability
The Ethereum blockchain has introduced various concepts to enhance user experience and validation of transactions. One such idea is to generate unique addresses based on certain characters, similar to how SHA256 hash functions validate transactions. In this article, we will explore the concept of creating unique Ethereum addresses starting with specific characters, such as “JoeAnonymousUserB7pMqyVa8JRcpZdCQLQ”.
The Problem:
In the current system, most Ethereum wallets require a 42-character alphanumeric string to generate an address. This string is generated using the SHA-256 hash function, which makes it difficult for humans to read and understand. For instance, let’s consider the following example:
0x...
This hexadecimal representation of the number 0x00000000000000000000000000000000000000000000000000000000000000000000000000000000 is virtually unreadable to a human eye.
The Solution:
To create unique Ethereum addresses based on human readability, we can utilize a custom hash function that incorporates specific characters into the address. One possible approach is to use the b58address encoding scheme, which converts hexadecimal numbers into human-readable strings using a combination of letters and digits.
Let’s examine how this works with our original example:
0x...
To create a readable address starting with „JoeAnonymousUserB”, we can combine these characters with other alphanumeric characters. One possible implementation is to use the b58address encoding scheme, which generates an address like this:
JoeAnonymousUserB7pMqyVa8JRcpZdCQLQ
This encoded string is more readable and easier to understand than the original hexadecimal representation.
Implementing Custom Hash Functions:
To create unique Ethereum addresses based on specific characters, we can implement custom hash functions that incorporate these characters into the address. For example:
- ASCII-based encoding:
Use ASCII values of characters to generate a 42-character alphanumeric string.
- B58Address encoding scheme: Convert hexadecimal numbers into human-readable strings using
b58address.
- Custom hashing algorithms:
Implement your own hashing algorithm that incorporates specific characters and uses the
b58addressencoding scheme.
Example Code:
Here’s an example implementation of a custom hash function in Solidity, which generates addresses starting with „JoeAnonymousUserB”:
„`solidity
pragma solidity ^0.8.0;
import „
import „
contract CustomAddressGen {
function generateAddress(string memory _firstChars) public returns (address) {
// Convert ASCII values of characters to hexadecimal
uint8[] memory asciiValues = new uint8[](_firstChars.length);
for (uint256 i = 0; i < _firstChars.length; i++) {
asciiValues[i] = uint8(bytes(_firstChars[i]));
}
// Generate a random 42-character alphanumeric string using the ASCII values
string memory hexString = „”;
for (uint256 i = 0; i < 42; i++) {
uint8 charCode = asciiValues[i] % 10;
charCode += 32; // Shift to uppercase for human readability
if ((i & 1) == 0) { // Only append a letter character
hexString += string(charCode);
} else { // Append to digit character
hexString += string(uint8(asciiValues[i]));
}
}
// Convert hexadecimal string to address using b58Address encoding scheme
bytes memory encodedHex = abi.encodeWithSigner(address()).param(0, bytes(hexString));
return eIP55Addresses().