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HMAC-MD5 hash calculator

An MD5-based HMAC found in old network protocols; it should not be used in new systems.

HMAC-MD5 is broken against collision attacks. Do not use it for password storage, signatures or certificates; it is only for legacy compatibility and corruption checks.
Up to 10 MiB; the file never leaves your browser.

Technical details

Output
128 bits (32 hex characters)
Standard
RFC 2104
Designed by
IETF, 1997
Security status
Broken — integrity checks only
Speed
Very fast

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