---
title: "Ethereum Private Keys: Format, Range and Representation (PDF)"
url: "https://bip39-phrase.com/list-keys/eth-private-keys-list-23-march/"
language: "en"
updated: "2025-03-23T00:00:00+00:00"
---

# Ethereum Private Keys: Format, Range and Representation

The range of Ethereum private keys, their 64-character hex form, how Keccak-256 turns a key into an EIP-55 address, keystore JSON files and HD derivation paths. Example hex-format keys follow.

PDF document · Published March 23, 2025 

[ Open the PDF (6 pages, 155 KB) ](/list-keys/eth-private-keys-list-23-march.pdf) 

Keywords: 

Ethereum private key · secp256k1 · Keccak-256 · EIP-55 · keystore JSON

Topic: 

[Private Keys and Addresses: Formats Explained](/topics/keys-and-addresses/)

## Guides on the same subject

- [EVM Address Format Explained: Structure & Usage](/format-evm-addresses/)  
An EVM address is 0x plus 40 hex characters: the last 20 bytes of the Keccak-256 hash of a secp256k1 public key, with an EIP-55 checksum.
- [Ethereum Keystore File (JSON Wallet): Structure and Security](/json-wallets-explained/)  
An Ethereum keystore file, or JSON wallet, holds one private key encrypted with a password via scrypt or PBKDF2 and AES-128-CTR. Fields, wallets, Python code.
- [Bitcoin Private Key Format: WIF, Base58 and Hex Explained](/private-key-btc/)  
A Bitcoin private key is a 256-bit number, usually shown in WIF: Base58 with a version byte, compression flag and checksum. Encoding steps and test vectors.

One of the documents in the [Private Key PDF Archive](/list-keys/), listed on [archive page 2](/list-keys/2/).