在 BCryptEncrypt winapi 中提供太短的消息时出现错误C000000D

问：

我正在尝试使用一些 Winapi 使用公共 PEM RSA 密钥加密简单消息，但我从我的程序中得到了一个奇怪的行为。

当我向两个 API 调用提供 128+ 字节长的消息时，一切都按预期工作。但是，当我提供比这更短的消息时，我收到一个 C000000D （） 错误代码。BCryptEncryptSTATUS_INVALID_PARAMETER

这是我使用的代码（没有所有的调试行）

//1024 bits public key from https://travistidwell.com/jsencrypt/demo/
CHAR key[216] = "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCAriYPFSlSVPprEN0jcg+K+AHMNAanHsfYELEIIrMRirFkzNQ3Zk+YSf1d3qZqGSqmUk6iaawMIh55Usfavnv9DCJtRnE9uHe1F1cgMnm+dug3dzOAiiSb5aIO5JqTK6LCtR+ccubCtw4geUGEk+nN0e0nk6BxRzjRIRGd5bJWDQIDAQAB";


//Get the length of the future base64 decoded public key
DWORD dwBufferLen = 0;
CryptStringToBinaryA(key, 0, CRYPT_STRING_BASE64, NULL, &dwBufferLen, NULL, NULL);

//Allocate a new buffer and redirect the output base64 decoded key to it
LPBYTE pbBuffer = NULL;
pbBuffer = (LPBYTE)LocalAlloc(0, dwBufferLen);

CryptStringToBinaryA(key, 0, CRYPT_STRING_BASE64, pbBuffer, &dwBufferLen, NULL, NULL);

//Get the size of the public key BLOB
DWORD cbKeyBlob = 0;
CryptDecodeObjectEx(X509_ASN_ENCODING | PKCS_7_ASN_ENCODING, X509_PUBLIC_KEY_INFO,     pbBuffer, dwBufferLen, 0, NULL, NULL, &cbKeyBlob);

//Allocate a new buffer and redirect the output key BLOB to it
LPBYTE pbKeyBlob = NULL;
pbKeyBlob = (LPBYTE)LocalAlloc(0, cbKeyBlob);

CryptDecodeObjectEx(X509_ASN_ENCODING | PKCS_7_ASN_ENCODING, X509_PUBLIC_KEY_INFO, pbBuffer, dwBufferLen, 0, NULL, pbKeyBlob, &cbKeyBlob);

//Import that key BLOB to a BCRYPT_KEY_HANDLE
BCRYPT_KEY_HANDLE hKey = NULL;

CryptImportPublicKeyInfoEx2(X509_ASN_ENCODING, pbKeyBlob, 0, 0, &hKey);

//Get the size of the future encrypted message
char* secretMsg = "Hello this message will be sent to Alice";
ULONG secretMsgSize = strlen(secretMsg);

ULONG dwOutputSize = 0;

BCryptEncrypt(hKey, secretMsg, secretMsg Size, NULL, NULL, 0, NULL, NULL, &dwOutputSize , 0);

//Create a new buffer and allocate the dwOutputSize to the Heap
ULONG encryptedBufferSize = 0
PUCHAR encryptedBuffer;
encryptedBuffer = (PUCHAR)HeapAlloc(GetProcessHeap(), 0, dwOutputSize);

BCryptEncrypt(hKey, secretMsg, secretMsgSize, NULL, NULL, 0, encryptedBuffer, dwOutputSize, &encryptedBufferSize, 0);

当我向我的第二个 BCryptEncrypt winapi 提供 128+ 字节长的消息时，一切按预期工作 但是，当我提供比这更短的消息时，我会得到一个C000000D （） 错误代码。STATUS_INVALID_PARAMETER

注意：我在第二个函数上出现错误BCryptEncrypt

注意 2 ： 在这些行代码之后，当然有一个清理功能