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Testing Malformed DER Data Auto-Correction
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Malformed Data:
  Length: 735 (odd - malformed)
  First 10 chars: 33082016b0

Attempting decryption with auto-correction...

✅ Decryption SUCCESSFUL (auto-correction worked)!

Decrypted data:
{"euid":"VISA_TEST","issuerName":"CITIC","source":"APP","campaignId":"15825118967230007","lastFourPanList":["5141"],"cardInfoList":[{"cardNumber":"4033910037095141","productLogo":"VISA人民币/美元普卡整合版"}],"timestamp":"2023-07-1916:23:00.100"}

Parsed JSON:
{
    "euid": "VISA_TEST",
    "issuerName": "CITIC",
    "source": "APP",
    "campaignId": "15825118967230007",
    "lastFourPanList": [
        "5141"
    ],
    "cardInfoList": [
        {
            "cardNumber": "4033910037095141",
            "productLogo": "VISA人民币/美元普卡整合版"
        }
    ],
    "timestamp": "2023-07-1916:23:00.100"
}

Verifying signature:
Generated hash: CF4ECC74566B755C3B81C5503711F5B0FACA79578600BCC15AFC3F90E516FD4D
Expected sign:  FD290FB11EB3E6BC48168529833286C6720A06CB98B18C85C5201FF03CA89EDE
⚠️  Signature does NOT match (expected - different keys)

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✅ AUTO-CORRECTION IS WORKING!
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