{
  "id": "skill-area:signature-schemes",
  "_kind": "SkillArea",
  "_file": "domain/skill-areas/skill-areas-crypto-blockchain.yaml",
  "_cluster": "domain",
  "attributes": {
    "displayName": "Digital Signature Schemes",
    "description": "Ed25519, ECDSA, RSA-PSS — signing, verification, malleability,\nand protocol bindings.\n",
    "domains": [
      "specialization:cryptography-blockchain"
    ],
    "expertiseLevels": [
      "intermediate",
      "expert"
    ]
  },
  "outgoingEdges": [
    {
      "from": "skill-area:signature-schemes",
      "to": "specialization:cryptography-blockchain",
      "kind": "applies_to",
      "attributes": {
        "confidence": "primary"
      }
    }
  ],
  "incomingEdges": [
    {
      "from": "skill-area:wallet-integration-key-management",
      "to": "skill-area:signature-schemes",
      "kind": "requires_skill_area"
    },
    {
      "from": "skill-area:encryption-decryption",
      "to": "skill-area:signature-schemes",
      "kind": "prerequisite_for_learning",
      "attributes": {
        "strength": "recommended"
      }
    },
    {
      "from": "lib-agent:cryptography-blockchain--crypto-engineer",
      "to": "skill-area:signature-schemes",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 0.5
      }
    },
    {
      "from": "lib-process:cryptography-blockchain--threshold-signature-scheme",
      "to": "skill-area:signature-schemes",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 0.5
      }
    },
    {
      "from": "lib-process:desktop-development--code-signing-setup",
      "to": "skill-area:signature-schemes",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 0.5
      }
    },
    {
      "from": "lib-skill:cli-mcp-development--code-signing-setup",
      "to": "skill-area:signature-schemes",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 0.5
      }
    },
    {
      "from": "lib-skill:cryptography-blockchain--crypto-primitives",
      "to": "skill-area:signature-schemes",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 0.5
      }
    },
    {
      "from": "workflow:artifact-signing-and-provenance",
      "to": "skill-area:signature-schemes",
      "kind": "requires_skill_area",
      "attributes": {}
    }
  ]
}