SodiumException 密钥应该是 SODIUM_CRYPTO_SIGN_SECRETKEYBYTES 字节

Question

尝试从密钥对生成密钥，但出现异常： SodiumException 密钥应为 SODIUM_CRYPTO_SIGN_SECRETKEYBYTES 字节 请参阅下面的代码

 if(file_exists($keypair)) {
    $keypair = file_get_contents($keypair, FALSE, NULL);

    dd(Keypair::fromSecretKey($keypair));
 }

运行此代码后，我得到了钠异常。

  SodiumException

  secretkey should be SODIUM_CRYPTO_SIGN_SECRETKEYBYTES bytes

  at vendor/tightenco/solana-php-sdk/src/Keypair.php:73
     69▕     static public function fromSecretKey($secretKey): Keypair
     70▕     {
     71▕         $secretKey = Buffer::from($secretKey)->toString();
     72▕
  ➜  73▕         $publicKey = sodium_crypto_sign_publickey_from_secretkey($secretKey);
     74▕
     75▕         return new static(
     76▕             $publicKey,
     77▕             $secretKey

      +1 vendor frames
  2   app/Console/Commands/Initializer.php:81
      Tighten\SolanaPhpSdk\Keypair::fromSecretKey()

      +13 vendor frames
  16  artisan:37
      Illuminate\Foundation\Console\Kernel::handle()

Answer 1

非常简单，只需对密钥对进行 json_decode 并将数组传递给 fromSecretKey 函数即可：

  $keypair = file_get_contents($keypair, FALSE, NULL);

  dd(Keypair::fromSecretKey(json_decode($keypair)));