Quantum Signature Playground

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Type any message, then sign it with ECDSA, Dilithium, FALCON, and SPHINCS+ side by side — with real keys, signatures, timing, and sizes.

Build a Block

build a block
transactions in block
50
1 MB
Per-tx size
96 B
64 B sig + 32 B key
Block usage
4.7 KB
0.5% of 1 MB
Max tx / block
10,416
floor(1 MB / 96 B)
Status
OK
fits in 1 block
All algorithms — relative block usage for 50 tx
ECDSA
0%
Dilithium
26%
FALCON
8%
SPHINCS+ SHA2
>100%
SPHINCS+ SHAKE
>100%

Quantum Countdown

quantum countdown
current physical qubits
4,158
qubit doubling period
24 months
error correction ratio
400:1
target physical qubits
500K
projected Q-Day
Already here
RSA/ECDSA encryption may already be at risk.
166 months / 13.8 years of doubling needed
qubit growth curve
targetnow+2.9yr+5.8yr+8.7yr+11.6yr+14.5yr
qubit growthtarget thresholdQ-Day

This is a simplified model. Real quantum computing progress is not smooth exponential growth — breakthroughs and setbacks are unpredictable.