Máy phát điện HMAC
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What is HMAC Generator?
HMAC (Hash-based Message Authentication Code) provides message integrity and authenticity by combining a cryptographic hash function with a secret key. HMACs are used to sign API requests (AWS Signature, Stripe webhooks), verify webhook payloads, and authenticate JWT tokens. DailyDevTools' HMAC Generator computes HMAC-SHA256, HMAC-SHA512, HMAC-SHA1, and HMAC-MD5 using the Web Crypto API.
How to use HMAC Generator
- 1Enter the message you want to authenticate in the Message field
- 2Enter your secret key in the Key field — this is the shared secret between sender and receiver
- 3Select the hash algorithm: HMAC-SHA256 (recommended), SHA512, SHA1, or MD5
- 4The HMAC signature is generated instantly and displayed in both hex and Base64 formats
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