✍️ Digital Signatures: Prove You Own Your Crypto
Discover how private keys sign transactions and public keys verify them
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0 / 5 completed✍️ Digital Signatures
Digital signatures prove you own a private key without revealing it. They're the magic that makes blockchain transactions secure and verifiable.
🔄 How It Works
Signing Process
- 1.Hash the message (transaction data)
- 2.Encrypt hash with your private key
- 3.Result is your digital signature
- 4.Broadcast message + signature
Verification Process
- 1.Receive message + signature
- 2.Decrypt signature using public key
- 3.Hash the received message
- 4.Compare hashes - match = valid!
Why This Is Secure
Only the private key holder can create a valid signature, but anyone with the public key can verify it. You prove ownership without revealing your secret!
🎮 Interactive Signature Demo
Hover to reveal (demo only!)
🎯 Real-World Use Cases
Blockchain Transactions
Every crypto transaction is signed with your private key, proving you authorized the transfer.
Smart Contract Interactions
Signing proves you're authorizing contract function calls like token approvals.
NFT Ownership
Proving you own an NFT without exposing your private key when displaying in galleries.
DAO Voting
Signing votes in DAOs proves token holders authorized governance decisions.
📊 Signature Properties
Proves message came from private key owner
Any change invalidates the signature
Can't deny signing after the fact