@mysten/sui/dist/esm/cryptography/publickey.js

Sui TypeScript API(Work in Progress)

import { fromBase64, toBase64 } from "@mysten/bcs";
import { blake2b } from "@noble/hashes/blake2b";
import { bytesToHex } from "@noble/hashes/utils";
import { bcs } from "../bcs/index.js";
import { normalizeSuiAddress, SUI_ADDRESS_LENGTH } from "../utils/sui-types.js";
import { messageWithIntent } from "./intent.js";
import { SIGNATURE_FLAG_TO_SCHEME, SIGNATURE_SCHEME_TO_SIZE } from "./signature-scheme.js";
function bytesEqual(a, b) {
  if (a === b) return true;
  if (a.length !== b.length) {
    return false;
  }
  for (let i = 0; i < a.length; i++) {
    if (a[i] !== b[i]) {
      return false;
    }
  }
  return true;
}
class PublicKey {
  /**
   * Checks if two public keys are equal
   */
  equals(publicKey) {
    return bytesEqual(this.toRawBytes(), publicKey.toRawBytes());
  }
  /**
   * Return the base-64 representation of the public key
   */
  toBase64() {
    return toBase64(this.toRawBytes());
  }
  toString() {
    throw new Error(
      "`toString` is not implemented on public keys. Use `toBase64()` or `toRawBytes()` instead."
    );
  }
  /**
   * Return the Sui representation of the public key encoded in
   * base-64. A Sui public key is formed by the concatenation
   * of the scheme flag with the raw bytes of the public key
   */
  toSuiPublicKey() {
    const bytes = this.toSuiBytes();
    return toBase64(bytes);
  }
  verifyWithIntent(bytes, signature, intent) {
    const intentMessage = messageWithIntent(intent, bytes);
    const digest = blake2b(intentMessage, { dkLen: 32 });
    return this.verify(digest, signature);
  }
  /**
   * Verifies that the signature is valid for for the provided PersonalMessage
   */
  verifyPersonalMessage(message, signature) {
    return this.verifyWithIntent(
      bcs.vector(bcs.u8()).serialize(message).toBytes(),
      signature,
      "PersonalMessage"
    );
  }
  /**
   * Verifies that the signature is valid for for the provided Transaction
   */
  verifyTransaction(transaction, signature) {
    return this.verifyWithIntent(transaction, signature, "TransactionData");
  }
  /**
   * Verifies that the public key is associated with the provided address
   */
  verifyAddress(address) {
    return this.toSuiAddress() === address;
  }
  /**
   * Returns the bytes representation of the public key
   * prefixed with the signature scheme flag
   */
  toSuiBytes() {
    const rawBytes = this.toRawBytes();
    const suiBytes = new Uint8Array(rawBytes.length + 1);
    suiBytes.set([this.flag()]);
    suiBytes.set(rawBytes, 1);
    return suiBytes;
  }
  /**
   * Return the Sui address associated with this Ed25519 public key
   */
  toSuiAddress() {
    return normalizeSuiAddress(
      bytesToHex(blake2b(this.toSuiBytes(), { dkLen: 32 })).slice(0, SUI_ADDRESS_LENGTH * 2)
    );
  }
}
function parseSerializedKeypairSignature(serializedSignature) {
  const bytes = fromBase64(serializedSignature);
  const signatureScheme = SIGNATURE_FLAG_TO_SCHEME[bytes[0]];
  switch (signatureScheme) {
    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 {
  PublicKey,
  bytesEqual,
  parseSerializedKeypairSignature
};
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