{
  "title": "SPHINCS+-SHAKE-128s source card at upstream revision 7ec789ace6874d875f4bb84cb61b81155398167e.",
  "article": "https://synxcrypto.com/articles/sphincs-shake-128s-parameter-source.php#comparison-table",
  "reviewed": "2026-09-21",
  "scope": "Editorial reference table; not a SYNX laboratory measurement. Preserve qualifiers in each row.",
  "columns": [
    "Field",
    "Published value",
    "Pinned source"
  ],
  "rows": [
    [
      "Public key",
      "32 bytes",
      "README parameter table"
    ],
    [
      "Secret key",
      "64 bytes",
      "README parameter table"
    ],
    [
      "Signature",
      "7,856 bytes",
      "README parameter table"
    ],
    [
      "Hash output length, n",
      "16 bytes",
      "SPX_N"
    ],
    [
      "Hypertree height and layers",
      "h = 63; d = 7",
      "SPX_FULL_HEIGHT and SPX_D"
    ],
    [
      "FORS configuration",
      "Height 12; 14 trees",
      "SPX_FORS_HEIGHT and SPX_FORS_TREES"
    ],
    [
      "Winternitz parameter",
      "w = 16",
      "SPX_WOTS_W"
    ]
  ],
  "sources": [
    {
      "url": "https://github.com/sphincs/sphincsplus/blob/7ec789ace6874d875f4bb84cb61b81155398167e/README.md",
      "label": "Pinned upstream SPHINCS+ parameter table"
    },
    {
      "url": "https://github.com/sphincs/sphincsplus/blob/7ec789ace6874d875f4bb84cb61b81155398167e/ref/params/params-sphincs-shake-128s.h",
      "label": "Pinned upstream SHAKE-128s parameter header"
    },
    {
      "url": "https://csrc.nist.gov/pubs/fips/205/final",
      "label": "FIPS 205: SLH-DSA and its SPHINCS+ basis"
    }
  ]
}