Encryption Types¶

Overview¶

AIDDDMAP implements multiple encryption schemes to ensure data security and privacy throughout the platform. This document outlines the various encryption types used, their implementations, and best practices for their application.

Encryption Schemes¶

1. Standard Encryption¶

Symmetric Encryption¶

AES-256-GCM for data at rest
ChaCha20-Poly1305 for high-performance requirements
XChaCha20-Poly1305 for large nonce requirements

Asymmetric Encryption¶

RSA-4096 for key exchange
Ed25519 for digital signatures
X25519 for key agreement

2. Homomorphic Encryption¶

Fully Homomorphic Encryption (FHE)¶

CKKS scheme for real number operations
BGV scheme for integer operations
TFHE for boolean circuit evaluation

Partially Homomorphic Encryption¶

Paillier for additive operations
ElGamal for multiplicative operations

3. Zero-Knowledge Systems¶

Groth16 for SNARK proofs
PLONK for universal setup
Bulletproofs for range proofs

Implementation Details¶

1. Standard Encryption Configuration¶

interface EncryptionConfig {
  algorithm: EncryptionAlgorithm;
  keySize: number;
  mode: CipherMode;
  padding: PaddingScheme;
  tagLength?: number;
}

enum EncryptionAlgorithm {
  AES = "AES",
  CHACHA20 = "CHACHA20",
  XCHACHA20 = "XCHACHA20",
  RSA = "RSA",
}

interface KeyPair {
  publicKey: string;
  privateKey: string;
  algorithm: AsymmetricAlgorithm;
  metadata: KeyMetadata;
}

2. FHE Configuration¶

interface FHEConfig {
  scheme: FHEScheme;
  parameters: {
    polyModulusDegree: number;
    coeffModulusBits: number[];
    plainModulus: number;
    security: number;
  };
  encoding: {
    type: "ckks" | "bfv";
    scale: number;
    slots: number;
  };
}

enum FHEScheme {
  CKKS = "CKKS",
  BGV = "BGV",
  TFHE = "TFHE",
}

3. Zero-Knowledge Configuration¶

interface ZKConfig {
  scheme: ZKScheme;
  curve: EllipticCurve;
  constraints: {
    type: "r1cs" | "plonk";
    count: number;
  };
  proof: {
    type: ProofType;
    parameters: any;
  };
}

Key Management¶

1. Key Generation¶

interface KeyGeneration {
  type: KeyType;
  parameters: KeyParameters;
  metadata: KeyMetadata;
  backup: BackupConfig;
}

interface KeyParameters {
  algorithm: string;
  size: number;
  usage: KeyUsage[];
  expiration?: number;
}

2. Key Storage¶

interface KeyStore {
  keys: Map<string, EncryptedKey>;
  metadata: StoreMetadata;
  access: AccessControl;
}

interface EncryptedKey {
  id: string;
  encryptedData: string;
  algorithm: string;
  version: number;
  wrappedBy?: string;
}

3. Key Rotation¶

interface KeyRotation {
  policy: RotationPolicy;
  schedule: RotationSchedule;
  notification: NotificationConfig;
}

interface RotationPolicy {
  interval: number;
  triggers: RotationTrigger[];
  grace: number;
}

Encryption Operations¶

1. Data Encryption¶

// Standard encryption example
const encryptionService = new EncryptionService({
  algorithm: EncryptionAlgorithm.AES,
  keySize: 256,
  mode: "GCM",
  tagLength: 128,
});

const encrypted = await encryptionService.encrypt({
  data: sensitiveData,
  additionalData: metadata,
  key: encryptionKey,
});

2. FHE Operations¶

// FHE computation example
const fheService = new FHEService({
  scheme: FHEScheme.CKKS,
  parameters: {
    polyModulusDegree: 8192,
    coeffModulusBits: [60, 40, 40, 60],
    scale: Math.pow(2, 40),
  },
});

const encryptedResult = await fheService.compute({
  operation: "multiply",
  operands: [encryptedA, encryptedB],
  rescale: true,
});

3. Zero-Knowledge Operations¶

// ZK proof generation
const zkService = new ZKService({
  scheme: ZKScheme.Groth16,
  curve: "BN254",
  constraints: {
    type: "r1cs",
    count: 1000,
  },
});

const proof = await zkService.generateProof({
  circuit: rangeProofCircuit,
  privateInputs: {
    value: secretValue,
    randomness: randomness,
  },
  publicInputs: {
    range: [0, 1000],
  },
});

Security Considerations¶

1. Algorithm Selection¶

Choose appropriate key sizes
Consider quantum resistance
Balance security and performance
Regular security assessments

2. Key Management¶

Secure key generation
Regular key rotation
Proper key backup
Access control

3. Implementation¶

Use standard libraries
Regular security audits
Proper error handling
Secure random number generation

Performance Optimization¶

1. Caching Strategies¶

interface CacheConfig {
  type: "key" | "result";
  maxSize: number;
  ttl: number;
  evictionPolicy: string;
}

2. Batch Operations¶

interface BatchConfig {
  maxSize: number;
  timeout: number;
  retryPolicy: RetryConfig;
}

Integration Examples¶

1. Secure Data Pipeline¶

// Configure secure data processing
const pipeline = new SecureDataPipeline({
  encryption: {
    transit: {
      algorithm: "CHACHA20",
      keySize: 256,
    },
    storage: {
      algorithm: "AES",
      mode: "GCM",
      keySize: 256,
    },
    compute: {
      scheme: "CKKS",
      parameters: fheParams,
    },
  },
  keyManagement: {
    rotation: {
      interval: "30d",
      automatic: true,
    },
    backup: {
      enabled: true,
      location: "secure-backup",
    },
  },
  audit: {
    level: "detailed",
    retention: "90d",
  },
});

2. Secure API Integration¶

// Configure secure API endpoints
const apiSecurity = new APISecurityConfig({
  encryption: {
    transport: "TLS-1.3",
    payload: {
      algorithm: "AES-256-GCM",
      keyExchange: "X25519",
    },
  },
  authentication: {
    type: "certificate",
    validation: {
      ocsp: true,
      crl: true,
    },
  },
  authorization: {
    type: "zero-knowledge",
    proofs: ["ownership", "access"],
  },
});

Best Practices¶

1. Implementation¶

Use standard libraries
Implement proper key management
Regular security audits
Comprehensive error handling

2. Operations¶

Regular key rotation
Secure key storage
Audit logging
Performance monitoring

3. Compliance¶

Follow standards
Regular assessments
Documentation
Staff training

Future Enhancements¶

Planned Features
Post-quantum encryption
Enhanced FHE performance
Improved key management
Better integration options
Research Areas
Quantum resistance
Novel FHE schemes
Performance optimization
Multi-party computation