ElGamal Digital Signature
Create and verify digital signatures using the ElGamal algorithm for secure data authentication and integrity verification.
Digital Signature
Public Key Cryptography
Hash Function
Advanced Algorithm
Generate ElGamal Key Pair
Generate a new public/private key pair for ElGamal digital signatures. Choose your security level or use a custom prime number.
About ElGamal Digital Signatures
The ElGamal digital signature scheme is a cryptographic algorithm for creating digital signatures based on the mathematical properties of discrete logarithms. It was proposed by Taher ElGamal in 1985 and is widely used in various cryptographic applications.
Key Features:
- Public Key Cryptography: Uses a pair of keys - public for verification, private for signing
- Discrete Logarithm Problem: Security based on the difficulty of computing discrete logarithms
- Randomness: Each signature uses a random value, making identical messages produce different signatures
- Non-repudiation: Signer cannot deny creating the signature
- Integrity: Any modification to the message invalidates the signature
Applications:
- Digital certificates and PKI systems
- Secure email and messaging
- Software distribution and updates
- Blockchain and cryptocurrency transactions
- Document authentication and legal signatures