All Algorithms
HMAC-SHA-256
Conditionally SafeMAC algorithm
This algorithm is safe with sufficient key/output size. Grover's algorithm halves the effective security level.
Algorithm Details
Category
MAC
Quantum Safety
Conditionally Safe
Key Lengths (bits)
256
FIPS Standard
FIPS 198-1
Known Vulnerabilities
- Grover's algorithm (reduces effective security to ~128-bit)
Notes
Standard MAC for TLS and API authentication. Post-Grover security of ~128 bits is sufficient.
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