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(MFC) Encrypt / Decrypt Secure StringsDemonstrates how to use the EncryptSecureENC and DecryptSecureENC methods to encrypt/decrypt secure strings. These methods were added in Chilkat v9.5.0.71 (released January 2018).
#include <CkSecureString.h> #include <CkCrypt2.h> void ChilkatSample(void) { CkString strOut; // This example requires the Chilkat Crypt API to have been previously unlocked. // See Unlock Chilkat Crypt for sample code. // Load the secure string with some text. CkSecureString secStr1; bool success = secStr1.LoadFile("qa_data/txt/helloWorld.txt","utf-8"); if (success != true) { strOut.append("Failed to load helloWorld.txt"); strOut.append("\r\n"); SetDlgItemText(IDC_EDIT1,strOut.getUnicode()); return; } CkCrypt2 crypt; crypt.put_CryptAlgorithm("aes"); crypt.put_CipherMode("cbc"); crypt.put_KeyLength(128); crypt.SetEncodedKey("000102030405060708090A0B0C0D0E0F","hex"); crypt.SetEncodedIV("000102030405060708090A0B0C0D0E0F","hex"); crypt.put_EncodingMode("base64"); // Return the base64 encoded encrypted contents of secStr1. const char *encryptedStr = crypt.encryptSecureENC(secStr1); strOut.append("Encrypted string: "); strOut.append(encryptedStr); strOut.append("\r\n"); // Output: // Encrypted string: qiq+IFhcjTkEIkZyf31V/g== // Decrypt to secStr2: CkSecureString secStr2; crypt.DecryptSecureENC(encryptedStr,secStr2); // Access the contents of secStr2 strOut.append("Decrypted string: "); strOut.append(secStr2.access()); strOut.append("\r\n"); // Output: // Decrypted string: Hello World! SetDlgItemText(IDC_EDIT1,strOut.getUnicode()); } |
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