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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 | 1x 1x 1x 1x 100x 100x 100x 100x 15293x 15293x 15293x 100x 195x 195x 36x 5173x 5173x 214x 214x 214x 214x 30669x 30669x 214x 214x | import { BufferReader, BufferWriter } from '@node-dlc/bufio';
import { MessageType } from '../MessageType';
import { IDlcMessage } from './DlcMessage';
/**
* CetAdaptorSignatures contains CET signatures and any necessary
* information linking the signatures to their corresponding outcome
*/
export class CetAdaptorSignatures implements IDlcMessage {
public static type = MessageType.CetAdaptorSignatures;
/**
* Deserializes a cet_adaptor_signature message
* @param buf
*/
public static deserialize(buf: Buffer): CetAdaptorSignatures {
const instance = new CetAdaptorSignatures();
const reader = new BufferReader(buf);
const nbSignatures = Number(reader.readBigSize()); // nb_signatures
// Read exactly nbSignatures * (65 + 97) bytes to match serialize format
for (let i = 0; i < nbSignatures; i++) {
const encryptedSig = reader.readBytes(65);
const dleqProof = reader.readBytes(97);
instance.sigs.push({ encryptedSig, dleqProof });
}
return instance;
}
/**
* The type for cet_adaptor_signature message. cet_adaptor_signature = 42774
*/
public type = CetAdaptorSignatures.type;
public length: bigint;
public sigs: ISig[] = [];
/**
* Converts cet_adaptor_signature to JSON (canonical rust-dlc format)
*/
public toJSON(): ICetAdaptorSignaturesJSON {
return {
ecdsaAdaptorSignatures: this.sigs.map((sig) => {
// Combine encryptedSig and dleqProof into single signature field as expected by rust-dlc
const signature = Buffer.concat([sig.encryptedSig, sig.dleqProof]);
return {
signature: signature.toString('hex'),
};
}),
};
}
/**
* Serializes the cet_adaptor_signature message into a Buffer
*/
public serialize(): Buffer {
const writer = new BufferWriter();
// writer.writeBigSize(this.type);
const dataWriter = new BufferWriter();
dataWriter.writeBigSize(this.sigs.length);
for (const sig of this.sigs) {
dataWriter.writeBytes(sig.encryptedSig);
dataWriter.writeBytes(sig.dleqProof);
}
// writer.writeBigSize(dataWriter.size);
writer.writeBytes(dataWriter.toBuffer());
return writer.toBuffer();
}
}
interface ISig {
encryptedSig: Buffer;
dleqProof: Buffer;
}
export interface ICetAdaptorSignaturesJSON {
ecdsaAdaptorSignatures: ISigJSON[];
}
export interface ISigJSON {
signature: string;
}
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