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GeekFormat

HMAC Generation and Validation

The recommended key length corresponds to the length of the Hash output: SHA-1=20 bytes, SHA-256=32 bytes, SHA-384=48 bytes, SHA-512=64 bytes

Notes

  • HMAC Generates signatures based on key and Hashi algorithms for authentication of source and integrity
  • Support SHA-1 / SHA-256 / SHA-384 / SHA-512
  • Generate and validate both locally in browsers, without uploading data
  • Validation uses fixed length by bytes to reduce time series differences