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Текущая директория: /usr/lib/node_modules/bitgo/node_modules/@iota/iota-sdk/dist/esm/cryptography

Просмотр файла: signature.js

import { fromBase64, toBase64 } from "@iota/bcs";
import { bcs } from "../bcs/index.js";
import {
  SIGNATURE_FLAG_TO_SCHEME,
  SIGNATURE_SCHEME_TO_FLAG,
  SIGNATURE_SCHEME_TO_SIZE
} from "./signature-scheme.js";
import { parseSerializedPasskeySignature } from "../keypairs/passkey/publickey.js";
function toSerializedSignature({
  signature,
  signatureScheme,
  publicKey
}) {
  if (!publicKey) {
    throw new Error("`publicKey` is required");
  }
  const pubKeyBytes = publicKey.toRawBytes();
  const serializedSignature = new Uint8Array(1 + signature.length + pubKeyBytes.length);
  serializedSignature.set([SIGNATURE_SCHEME_TO_FLAG[signatureScheme]]);
  serializedSignature.set(signature, 1);
  serializedSignature.set(pubKeyBytes, 1 + signature.length);
  return toBase64(serializedSignature);
}
function parseSerializedSignature(serializedSignature) {
  const bytes = fromBase64(serializedSignature);
  const signatureScheme = SIGNATURE_FLAG_TO_SCHEME[bytes[0]];
  switch (signatureScheme) {
    case "Passkey":
      return parseSerializedPasskeySignature(serializedSignature);
    case "MultiSig":
      const multisig = bcs.MultiSig.parse(bytes.slice(1));
      return {
        serializedSignature,
        signatureScheme,
        multisig,
        bytes
      };
    case "ED25519":
    case "Secp256k1":
    case "Secp256r1":
      const size = SIGNATURE_SCHEME_TO_SIZE[signatureScheme];
      const signature = bytes.slice(1, bytes.length - size);
      const publicKey = bytes.slice(1 + signature.length);
      return {
        serializedSignature,
        signatureScheme,
        signature,
        publicKey,
        bytes
      };
    default:
      throw new Error("Unsupported signature scheme");
  }
}
export {
  parseSerializedSignature,
  toSerializedSignature
};
//# sourceMappingURL=signature.js.map

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