52 lines
1.5 KiB
C
52 lines
1.5 KiB
C
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#include <winpr/crt.h>
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#include <winpr/print.h>
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#include <winpr/crypto.h>
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#include <winpr/ssl.h>
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#include <winpr/wlog.h>
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static const char* SECRET_PASSWORD_TEST = "MySecretPassword123!";
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int TestCryptoProtectMemory(int argc, char* argv[])
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{
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int cbPlainText;
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int cbCipherText;
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const char* pPlainText;
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BYTE* pCipherText;
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pPlainText = SECRET_PASSWORD_TEST;
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cbPlainText = strlen(pPlainText) + 1;
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cbCipherText = cbPlainText +
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(CRYPTPROTECTMEMORY_BLOCK_SIZE - (cbPlainText % CRYPTPROTECTMEMORY_BLOCK_SIZE));
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printf("cbPlainText: %d cbCipherText: %d\n", cbPlainText, cbCipherText);
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pCipherText = (BYTE*)malloc(cbCipherText);
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if (!pCipherText)
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{
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printf("Unable to allocate memory\n");
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return -1;
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}
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CopyMemory(pCipherText, pPlainText, cbPlainText);
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ZeroMemory(&pCipherText[cbPlainText], (cbCipherText - cbPlainText));
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winpr_InitializeSSL(WINPR_SSL_INIT_DEFAULT);
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if (!CryptProtectMemory(pCipherText, cbCipherText, CRYPTPROTECTMEMORY_SAME_PROCESS))
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{
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printf("CryptProtectMemory failure\n");
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return -1;
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}
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printf("PlainText: %s (cbPlainText = %d, cbCipherText = %d)\n", pPlainText, cbPlainText,
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cbCipherText);
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winpr_HexDump("crypto.test", WLOG_DEBUG, pCipherText, cbCipherText);
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if (!CryptUnprotectMemory(pCipherText, cbCipherText, CRYPTPROTECTMEMORY_SAME_PROCESS))
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{
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printf("CryptUnprotectMemory failure\n");
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return -1;
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}
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printf("Decrypted CipherText: %s\n", pCipherText);
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SecureZeroMemory(pCipherText, cbCipherText);
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free(pCipherText);
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return 0;
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}
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