HMAC generator
Generate HMAC (Hash-based Message Authentication Code)
Configuration
HMAC updates when you change message, secret key, or algorithm
HMAC result
Hash-based message authentication code
About HMAC
HMAC (Hash-based Message Authentication Code) uses a cryptographic hash and a secret key to verify data integrity and authenticity. Common uses include API authentication, message verification, and digital signatures. Prefer SHA-256 or SHA-512. Keep secret keys confidential.