HMAC-SHA1 Generator
Compute HMAC-SHA1 signatures. Standard signature method for OAuth 1.0a, TOTP (Google Authenticator) and legacy systems.
1 How to Use HMAC-SHA1 Generator
- 1. Enter message.
- 2. Enter key.
- 3. Copy signature.
⚙️ Cryptographic Specifications
- Algorithm
- HMAC-SHA1
- Execution Engine
- Web Cryptography API (SubtleCrypto)
- Environment
- Client Browser Sandbox
- Network Telemetry
- 0 Bytes (Zero Server Transmission)
🛡️ Security & Compliance
Enterprise developers can safely execute this tool with production secrets. Because execution takes place entirely within your browser's local V8 JavaScript runtime, no payloads are transmitted over HTTP, cached on third-party proxies, or stored in server logs.
Verified Safe for SOC2, HIPAA, and GDPR developer compliance audits.
Frequently Asked Questions
What uses HMAC-SHA1?
OAuth 1.0a request signing and RFC 6238 TOTP two-factor authentication algorithms.
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