{
  "id": "skill-area:symmetric-encryption",
  "_kind": "SkillArea",
  "_file": "domain/skill-areas/skill-areas-crypto-blockchain.yaml",
  "_cluster": "domain",
  "attributes": {
    "displayName": "Symmetric Encryption",
    "description": "AES-GCM, ChaCha20-Poly1305, key sizes, IV/nonce hygiene, and\nAEAD usage patterns.\n",
    "domains": [
      "specialization:cryptography-blockchain"
    ],
    "expertiseLevels": [
      "intermediate",
      "expert"
    ]
  },
  "outgoingEdges": [
    {
      "from": "skill-area:symmetric-encryption",
      "to": "specialization:cryptography-blockchain",
      "kind": "applies_to",
      "attributes": {
        "confidence": "primary"
      }
    }
  ],
  "incomingEdges": [
    {
      "from": "skill-area:encryption-decryption",
      "to": "skill-area:symmetric-encryption",
      "kind": "prerequisite_for_learning",
      "attributes": {
        "strength": "recommended"
      }
    },
    {
      "from": "lib-agent:cryptography-blockchain--crypto-engineer",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 1
      }
    },
    {
      "from": "lib-process:cryptography-blockchain--amm-pool-development",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 1
      }
    },
    {
      "from": "lib-process:cryptography-blockchain--blockchain-indexer-development",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 1
      }
    },
    {
      "from": "lib-process:cryptography-blockchain--blockchain-node-setup",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 1
      }
    },
    {
      "from": "lib-process:cryptography-blockchain--bug-bounty-program",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 1
      }
    },
    {
      "from": "lib-process:cryptography-blockchain--cross-chain-bridge",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 1
      }
    },
    {
      "from": "lib-process:cryptography-blockchain--cryptographic-protocol-implementation",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 1
      }
    },
    {
      "from": "lib-process:cryptography-blockchain--dapp-frontend-development",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 1
      }
    },
    {
      "from": "lib-process:cryptography-blockchain--economic-simulation",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 1
      }
    },
    {
      "from": "lib-process:cryptography-blockchain--erc1155-multi-token",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 1
      }
    },
    {
      "from": "lib-process:cryptography-blockchain--erc20-token-implementation",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 1
      }
    },
    {
      "from": "lib-process:cryptography-blockchain--erc4626-tokenized-vault",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 1
      }
    },
    {
      "from": "lib-process:cryptography-blockchain--erc721-nft-collection",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 1
      }
    },
    {
      "from": "lib-process:cryptography-blockchain--formal-verification",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 1
      }
    },
    {
      "from": "lib-process:cryptography-blockchain--gas-optimization",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 1
      }
    },
    {
      "from": "lib-process:cryptography-blockchain--governance-system",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 1
      }
    },
    {
      "from": "lib-process:cryptography-blockchain--hd-wallet-implementation",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 1
      }
    },
    {
      "from": "lib-process:cryptography-blockchain--incident-response-exploits",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 1
      }
    },
    {
      "from": "lib-process:cryptography-blockchain--invariant-testing",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 1
      }
    },
    {
      "from": "lib-process:cryptography-blockchain--lending-protocol",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 1
      }
    },
    {
      "from": "lib-process:cryptography-blockchain--multi-signature-wallet",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 1
      }
    },
    {
      "from": "lib-process:cryptography-blockchain--privacy-token-implementation",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 1
      }
    },
    {
      "from": "lib-process:cryptography-blockchain--smart-contract-development-lifecycle",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 1
      }
    },
    {
      "from": "lib-process:cryptography-blockchain--smart-contract-fuzzing",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 1
      }
    },
    {
      "from": "lib-process:cryptography-blockchain--smart-contract-security-audit",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 1
      }
    },
    {
      "from": "lib-process:cryptography-blockchain--smart-contract-upgrade",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 1
      }
    },
    {
      "from": "lib-process:cryptography-blockchain--staking-contract",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 1
      }
    },
    {
      "from": "lib-process:cryptography-blockchain--subgraph-development",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 1
      }
    },
    {
      "from": "lib-process:cryptography-blockchain--threshold-signature-scheme",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 1
      }
    },
    {
      "from": "lib-process:cryptography-blockchain--validator-node-operation",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 1
      }
    },
    {
      "from": "lib-process:cryptography-blockchain--yield-aggregator",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 1
      }
    },
    {
      "from": "lib-process:cryptography-blockchain--zk-circuit-development",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 1
      }
    },
    {
      "from": "lib-process:cryptography-blockchain--zk-rollup-development",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 1
      }
    },
    {
      "from": "lib-process:cryptography-blockchain--zk-snark-application",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 1
      }
    },
    {
      "from": "lib-process:mobile-development--mobile-security-implementation",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 0.5
      }
    },
    {
      "from": "lib-process:network-programming--tls-integration",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 0.5
      }
    },
    {
      "from": "lib-skill:cryptography-blockchain--crypto-primitives",
      "to": "skill-area:symmetric-encryption",
      "kind": "lib_requires_skill_area",
      "attributes": {
        "weight": 1
      }
    }
  ]
}