Privacy and Zero-Knowledge Technologies

1interface ConfidentialTransaction {
2  // Pedersen commitment components
3  interface PedersenCommitment {
4    value: FieldElement;
5    blinding: FieldElement;
6  }
7  
8  // Range proof structure
9  interface RangeProof {
10    commitments: PedersenCommitment[];
11    challenges: Challenge[];
12    responses: FieldElement[];
13  }
14}
15
16// Transaction component with styled-components
17const ConfidentialTxView = styled.div`
18  display: grid;
19  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
20  gap: 1.5rem;
21  padding: 2rem;
22  background: ${props => props.theme.colors.background};
23  border-radius: 8px;
24`;
25
26class ConfidentialTxBuilder {
27  async buildTransaction(
28    amount: bigint,
29    recipient: TritAddress
30  ): Promise<ConfidentialTransaction> {
31    // Implementation using Web Workers
32    return new Promise((resolve) => {
33      const worker = new Worker('/tx-builder-worker.ts');
34      worker.postMessage({ amount, recipient });
35      worker.onmessage = (e) => resolve(e.data);
36    });
37  }
38}

1interface RingSignature {
2  // Ring structure
3  interface Ring {
4    members: TritAddress[];
5    signature: FieldElement[];
6    keyImage: FieldElement;
7  }
8  
9  // Signature generation
10  async function generateSignature(
11    message: Buffer,
12    ring: Ring,
13    secretKey: FieldElement
14  ): Promise<RingSignature>;
15}
16
17// API route for ring signature verification
18export default async function handler(
19  req: NextApiRequest,
20  res: NextApiResponse<RingVerificationResponse>
21) {
22  const { signature, message, ring } = req.body;
23  
24  try {
25    const isValid = await verifyRingSignature(signature, message, ring);
26    res.status(200).json({ isValid });
27  } catch (error) {
28    res.status(400).json({ error: error.message });
29  }
30}
31
32// React component for ring visualization
33const RingVisualizer: React.FC<{
34  ring: Ring;
35  signature: RingSignature;
36}> = ({ ring, signature }) => {
37  return (
38    <StyledRing>
39      <RingMembers members={ring.members} />
40      <SignatureDisplay signature={signature} />
41      <KeyImageView image={signature.keyImage} />
42    </StyledRing>
43  );
44};

1interface TritStego {
2  // Steganographic embedding
3  interface EmbeddingParams {
4    data: Buffer;
5    cover: TritSequence;
6    key: StegKey;
7  }
8  
9  // Extraction parameters
10  interface ExtractionParams {
11    stego: TritSequence;
12    key: StegKey;
13    length: number;
14  }
15}
16
17class TritSteganography {
18  // Embed data in ternary sequence
19  async embed(
20    params: EmbeddingParams
21  ): Promise<TritSequence> {
22    return new Promise((resolve) => {
23      const worker = new Worker('/stego-worker.ts');
24      worker.postMessage(params);
25      worker.onmessage = (e) => resolve(e.data);
26    });
27  }
28  
29  // Extract hidden data
30  async extract(
31    params: ExtractionParams
32  ): Promise<Buffer> {
33    return new Promise((resolve) => {
34      const worker = new Worker('/stego-worker.ts');
35      worker.postMessage(params);
36      worker.onmessage = (e) => resolve(e.data);
37    });
38  }
39}
40
41// Visualization component
42const StegoVisualizer: React.FC<{
43  original: TritSequence;
44  stego: TritSequence;
45}> = ({ original, stego }) => {
46  return (
47    <StyledStegoView>
48      <SequenceComparison
49        original={original}
50        modified={stego}
51      />
52      <DifferenceHighlight
53        sequences={[original, stego]}
54      />
55    </StyledStegoView>
56  );
57};