+==============================================================================+
| DECRYPTION STATION — PUZZLE #13288 |
+==============================================================================+
CIPHER TYPE: VITERBI
SECURITY LEVEL: 7/7
STATUS: [ACTIVE — AWAITING DECRYPTION]
MISSION BRIEFING
----------------
Decode a 48-bit message encoded with a rate-1/2 convolutional code. Use the Viterbi algorithm to find the maximum-likelihood path.
INTERCEPTED DATA
----------------
> encoded:
101111000100010010111101000111110000100100001000001110101111011101111001011111001000100111100000
> generators:
[7, 5]
> constraint:
3
> hint:
Use the Viterbi algorithm: trace through the trellis, find the min-cost path, convert bits to ASCII
> answer format:
lowercase letters, no spaces or punctuation
[INTEL] Pool fill: viterbi diff 7
DECRYPTION INPUT
----------------
NAVIGATION
----------
[LEARN] Study this cipher type
[BROWSE] Return to database