EOS区块链的钱包服务器Keosd,提供了sign_transaction开发接口,容许开发者进行交易签名。php
可是,若是咱们但愿本身管理密钥而不是交给keosd管理,应该如何在PHP代码中实现交易的离线签名功能?数组
答案是使用**EosTool**服务器
这个用于EOS应用开发的PHP包。EosTool的LocalSigner类能够轻松实现对EOS交易的离线签名。区块链
例如,下面的代码使用本身管理的私钥来签名一个代币转帐交易:code
use EosTool\Signer\LocalSigner; $tx = [ 'expiration'=>'2018-12-04T17:00:00', 'ref_block_num' => 2878, 'ref_block_prefix' => 29012031, 'max_net_usage_words' => 0, 'max_cpu_usage_ms' => 0, 'delay_sec' => 0, 'context_free_actions' => [], 'actions' => [[ 'account' => 'eosio.token', 'name' => 'transfer', 'authorization' => [[ 'actor' => 'eosio', 'permission' => 'active' ]], 'data' => '1122334455667788990011223344556677.....889900' ]], 'transaction_extensions' => [] ]; $pubKeys = [...]; $chainId = '...'; $signer = new LocalSigner(['5KQwrPbwdL6PhXujxW37FSSQZ1JiwsST4cqQzDeyXtP79zkvFD3']/*private keys*/); $signatures = $signer->sign($tx,$pubKeys,$chainId);
实例化LocalSigner须要传入一组用于签名的私钥,而后调用其sign()
方法传入交易发起帐户公钥数组及区块链ID,返回结果就是交易的权威签名数组。token
EosTool下载地址:http://sc.hubwiz.com/codebag/eos-php-sdk/接口