{
  "valid_test_cases": [
    {
      "sk": "E4E64DB308215A81F1F41969624B9A6265D50F479BA6789E40190027AC6C72A8",
      "pk": "03E812BE6ED9A2B180FA21B682D5FB35158A9542399D389B736AEDC930CAED04AA",
      "blindsecnonce": "D05EC853CBCFC49EAEB5DF5AED030C880C1FB59414AD4ECC3D0E5C50CD7B906803E812BE6ED9A2B180FA21B682D5FB35158A9542399D389B736AEDC930CAED04AA",
      "blindpubnonce": "03E97BD8C531CB0B40AC13857BCDCA6E9FF33889148BA5C9C02E0BE93D79560186",
      "blindchallenge": "64FD1082FA5E7C5BF1267A5AB5BC3F4BD41167427E4D4A4166876709857E92EB",
      "pk_parity": true,
      "nonce_parity": false,

      "expected": {
        "blindsignature": "8632B771A6A923FF1561B3513C4841F2D88795B05D99BC581ABCA201EED86EC5"
      },

      "checks": {
        "verify_returns_true": true,
        "secnonce_prefix_zeroed_after_sign": true,
        "second_call_raises_valueerror": true
      }
    }
  ],

  "sign_error_test_cases": [
    {
      "sk": "5D2E5F8FD68D31B28F14334CA3E2DF8B85C2F31DBBD5C3E583DBFF90E2024286",
      "blindsecnonce": "EDBA15E0F013E5323F22998F324B5ABF75D8FEB5EF4FD4BBD7B706B057BF1F08036E3F9DB8CD5E6461E8C23F80F4A67F7006011A1AE3DBDD863213E73D1534D5DC",
      "blindchallenge": "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141",
      "pk_parity": false,
      "nonce_parity": true,

      "error": { "type": "ValueError" },
      "repeat": 1,
      "comment": "e' out of range"
    },
    {
      "sk": "8C3975176DD4A9A2CFDFBBF50243C29E6C889D3867BE5D3C3BEBCD00B1BC6469",
      "blindsecnonce": "E1B7C8E2750577A638D26BCABE96F66C7AE5DCCC6BF429E167686CC1BCDC07AF037C1AAEF6EEDEA6DBB123DC76D8C4AF9210E33EB26D7BBA95123680E0632F7F65",
      "blindchallenge": "93EF4DEE1C3EC61665D94448715FC756363FC775A10B6CBB158B089404E3CB1E",
      "pk_parity": true,
      "nonce_parity": false,

      "error": { "type": "ValueError" },
      "repeat": 2,
      "comment": "nonce reuse: second call must raise"
    }
  ],

  "verify_fail_test_cases": [
    {
      "pk": "03E812BE6ED9A2B180FA21B682D5FB35158A9542399D389B736AEDC930CAED04AA",
      "blindpubnonce": "03E97BD8C531CB0B40AC13857BCDCA6E9FF33889148BA5C9C02E0BE93D79560186",
      "blindchallenge": "64FD1082FA5E7C5BF1267A5AB5BC3F4BD41167427E4D4A4166876709857E92EB",
      "blindsignature": "9632B771A6A923FF1561B3513C4841F2D88795B05D99BC581ABCA201EED86EC5",
      "pk_parity": true,
      "nonce_parity": false,

      "expected_valid": false,
      "comment": "Verify should return False (no exception)"
    }
  ],

  "verify_error_test_cases": [
    {
      "pk": "03E812BE6ED9A2B180FA21B682D5FB35158A9542399D389B736AEDC930CAED04AA",
      "blindpubnonce": "04E97BD8C531CB0B40AC13857BCDCA6E9FF33889148BA5C9C02E0BE93D79560186",
      "blindchallenge": "64FD1082FA5E7C5BF1267A5AB5BC3F4BD41167427E4D4A4166876709857E92EB",
      "blindsignature": "8632B771A6A923FF1561B3513C4841F2D88795B05D99BC581ABCA201EED86EC5",
      "pk_parity": true,
      "nonce_parity": false,

      "error": { "type": "ValueError" },
      "comment": "Bad blindpubnonce encoding"
    }
  ]
}