@provenanceio/wallet-utils
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Typescript Utilities for Provenance Blockchain Wallet
36 lines (35 loc) • 1.9 kB
JavaScript
import * as google_protobuf_any_pb from 'google-protobuf/google/protobuf/any_pb';
import { ModeInfo, SignerInfo } from '../../../proto/cosmos/tx/v1beta1/tx_pb';
import { SignMode } from '../../../proto/cosmos/tx/signing/v1beta1/signing_pb';
import { PubKey } from '../../../proto/cosmos/crypto/secp256k1/keys_pb';
import { TYPE_NAMES_READABLE_MAP } from '../../../types';
/** Builds the SignerInfo messages, which describes the public key and
* signing mode of a single top-level signer
* @param baseAccount: The base account used for signatures. This provides
* the signer sequence. The sequence is the sequence of the account, which
* describes the number of committed transactions signed by a given address.
* It is used to prevent replay attacks.
* @param pubKeyBytes: The public key of the signer as a Uint8Array. It is
* optional for accounts that already exist in state. If unset, the verifier
* can use the required signer address for this position and lookup the public
* key.
* reference: https://github.com/cosmos/cosmos-sdk/blob/v0.47.0-rc1/proto/cosmos/tx/v1beta1/tx.proto#L13-L26
*/
export var buildSignerInfo = function buildSignerInfo(baseAccount, pubKeyBytes) {
// mode_info describes the signing mode of the signer and is a nested
// structure to support nested multisig pubkey's. This function only
// supports single signer functionality.
var single = new ModeInfo.Single();
single.setMode(SignMode.SIGN_MODE_DIRECT);
var modeInfo = new ModeInfo();
modeInfo.setSingle(single);
var signerInfo = new SignerInfo();
var pubKey = new PubKey();
pubKey.setKey(pubKeyBytes);
var pubKeyAny = new google_protobuf_any_pb.Any();
pubKeyAny.pack(pubKey.serializeBinary(), TYPE_NAMES_READABLE_MAP.PubKey, '/');
signerInfo.setPublicKey(pubKeyAny);
signerInfo.setModeInfo(modeInfo);
signerInfo.setSequence(baseAccount.getSequence());
return signerInfo;
};