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Hankin 2026-04-24 17:53:41 +08:00
parent 6a043fc827
commit 70cbdf51b3
1 changed files with 21 additions and 3 deletions
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24
app/Services/WechatPayService.php
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@ -181,14 +181,32 @@ class WechatPayService
}
$resource = $data['resource'];
$ciphertext = base64_decode($resource['ciphertext']);
$nonce = $resource['nonce'];
$associatedData = $resource['associated_data'] ?? '';
// 1. 检查原始 ciphertext 的类型和长度（它应该是 Base64 字符串）
$originalCiphertext = $resource['ciphertext'];
Log::info('原始 ciphertext 信息', [
'type' => gettype($originalCiphertext), // 应该是 string
'length' => strlen($originalCiphertext), // 通常是一个正整数，如 344
'is_base64' => base64_encode(base64_decode($originalCiphertext, true)) === $originalCiphertext, // 应该是 true
]);
// 2. 检查一次解码后的二进制数据长度
$binaryCiphertext = base64_decode($originalCiphertext);
Log::info('解码后二进制密文长度', [
'binary_length' => strlen($binaryCiphertext), // 通常会是 16 的倍数
]);
// 3. 再次确认你的 APIv3 密钥是否是 32 字节
$apiV3Key = config("wechatpay.payment.api3_key");
Log::info("解密数据", ["ciphertext" => $ciphertext, "apiV3Key" => $apiV3Key, "nonce" => $nonce, "associatedData" => $associatedData]);
Log::info('APIv3 密钥长度', [
'key_length' => strlen($apiV3Key), // 必须输出 32
]);
Log::info("解密数据", ["ciphertext" => $binaryCiphertext, "apiV3Key" => $apiV3Key, "nonce" => $nonce, "associatedData" => $associatedData]);
// PHP 7.1+ 原生支持 AES-256-GCM
$decrypted = AesGcm::decrypt(
$ciphertext, // Base64解码后的密文（包含tag）
$binaryCiphertext, // Base64解码后的密文（包含tag）
$apiV3Key,
$nonce,
$associatedData