Unverified50% confidenceFactExact time
HMAC-SHA256 is a message authentication code based on the SHA-256 hash function and a key, used to verify message integrity and authenticity; its tamper-evidence depends on key management, and if the key leaks the tamper-evidence property fails.
1
Sources
50%
Confidence
Long-term
Relevance
10/19/2026
First Seen
Sources
Related Entities
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