Security Fundamentals

Public & Private Keys Explained

The foundation of cryptocurrency security. Learn how these cryptographic keys protect your assets and enable secure transactions.

Military-Grade Security
Unique Identity
Trustless Verification

The Mailbox Analogy

Public Key = Your Address

Like your home address, you can share it with anyone. People use it to send you mail (crypto). Anyone can see your address, but they cannot access what's inside.

Safe to share publicly

Private Key = Your Key

Like the key to your mailbox, only YOU should have it. It lets you open the box and take the mail (spend crypto). If someone else gets it, they can steal everything.

NEVER share with anyone!

How Cryptographic Keys Work

Private Key

256-bit random number

5Kb8kLf9zgW...a3Hj

Public Key

Derived via ECDSA

04a1b2c3d4...f9g8

Wallet Address

Hash of public key

0x742d35Cc...8F2e

One-Way Function

Private → Public is easy. Public → Private is impossible.

Mathematically Linked

Keys are paired. Only your private key works with your public key.

Unique Pairs

Each private key generates exactly one public key.

Interactive Key Pair Generator

See how key pairs are generated. This is a simulation for educational purposes only - never use these keys for real transactions!

Private KeySECRET
••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••
Public KeySHAREABLE
04a128f5f136153fc6810d09486960bb2223e30c6a3222aee96c3b50c121ac1430b0ad0bbc2876b0090b26298824b6f70b74401496f446f99fd1a3cebc8e221a00
Wallet AddressPUBLIC
0x88be9efe22101d691d7222dc41b0d9df7d65b1ca

⚠️ Educational demo only. Real keys are generated using cryptographically secure random number generators.

Digital Signature Simulator

See how your private key signs messages to prove ownership without revealing the key itself.

Sign a message to see the signature

How Signing Works

  1. 1. Your message is hashed (converted to a fixed-length number)
  2. 2. The hash is encrypted with your PRIVATE key → This is the signature
  3. 3. Anyone can verify by decrypting with your PUBLIC key
  4. 4. If the decrypted hash matches the message hash → Signature is valid!

How Crypto Transactions Work

1
2
3
4
5

Create Transaction

Sign with Private Key

Broadcast to Network

Verify with Public Key

Transaction Confirmed

Reglas de Seguridad Críticas

SÍ hacer

  • Usa una billetera de hardware para almacenar grandes cantidades
  • Mantén múltiples copias de seguridad encriptadas en diferentes ubicaciones
  • Genera claves en un entorno seguro y sin conexión
  • Verifica las direcciones de billetera antes de enviar cualquier transacción

NO hacer

  • Nunca compartas tu clave privada con nadie
  • Nunca almacenes claves como texto plano o capturas de pantalla
  • Nunca introduzcas tu clave privada en sitios web o formularios en línea
  • Nunca uses una clave privada generada por otra persona

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