json_schema: {
      "$schema": "http://json-schema.org/draft-04/schema#",
      "title": "dictionary",
      "description": "A dictionary captures a set of key/value pairs",
      "type": "object",
      "patternProperties": {
          "^[a-zA-Z0-9_-]{1,}$": {
              "type": "string",
              "description": "Custom hash key"
          },
          "^MD5$": {
              "type": "string",
              "description": "Specifies the MD5 message digest algorithm.",
              "pattern": "^[a-fA-F0-9]{32}$"
          },
          "^MD6$": {
              "type": "string",
              "description": "Specifies the MD6 message digest algorithm.",
              "pattern": "^[a-fA-F0-9]{32}|[a-fA-F0-9]{40}|[a-fA-F0-9]{56}|[a-fA-F0-9]{64}|[a-fA-F0-9]{96}|[a-fA-F0-9]{128}$"
          },
          "^RIPEMD-160$": {
              "type": "string",
              "description": "Specifies the RIPEMD\u00ad-160 (R\u200bACE\u200b Integrity Primitives Evaluation Message Digest)\u200b cryptographic hash function.",
              "pattern": "^[a-fA-F0-9]{40}$"
          },
          "^SHA-1$": {
              "type": "string",
              "description": "Specifies the SHA\u00ad-1 (secure-\u00adhash algorithm 1) cryptographic hash function.",
              "pattern": "^[a-fA-F0-9]{40}$"
          },
          "^SHA-224$": {
              "type": "string",
              "description": "Specifies the SHA-\u00ad224 cryptographic hash function (part of the SHA\u00ad2 family).",
              "pattern": "^[a-fA-F0-9]{56}$"
          },
          "^SHA-256$": {
              "type": "string",
              "description": "Specifies the SHA-\u00ad256 cryptographic hash function (part of the SHA\u00ad2 family).",
              "pattern": "^[a-fA-F0-9]{64}$"
          },
          "^SHA-384$": {
              "type": "string",
              "description": "Specifies the SHA-\u00ad384 cryptographic hash function (part of the SHA\u00ad2 family).",
              "pattern": "^[a-fA-F0-9]{96}$"
          },
          "^SHA-512$": {
              "type": "string",
              "description": "Specifies the SHA-\u00ad512 cryptographic hash function (part of the SHA\u00ad2 family).",
              "pattern": "^[a-fA-F0-9]{128}$"
          },
          "^SHA3-224$": {
              "type": "string",
              "description": "Specifies the SHA3-224 cryptographic hash function.",
              "pattern": "^[a-fA-F0-9]{56}$"
          },
          "^SHA3-256$": {
              "type": "string",
              "description": "Specifies the SHA3-256 cryptographic hash function.",
              "pattern": "^[a-fA-F0-9]{64}$"
          },
          "^SHA3-384$": {
              "type": "string",
              "description": "Specifies the SHA3-384 cryptographic hash function.",
              "pattern": "^[a-fA-F0-9]{96}$"
          },
          "^SHA3-512$": {
              "type": "string",
              "description": "Specifies the SHA3-512 cryptographic hash function.",
              "pattern": "^[a-fA-F0-9]{128}$"
          },
          "^ssdeep$": {
              "type": "string",
              "description": "Specifies the ssdeep fuzzy hashing algorithm.",
              "pattern": "^[a-zA-Z0-9/+:.]{1,128}$"
          },
          "^WHIRLPOOL$": {
              "type": "string",
              "description": "Specifies the whirlpool cryptographic hash function",
              "pattern": "^[a-fA-F0-9]{128}$"
          }
      },
      "additionalProperties": false
  }