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Match Java JCE AES Encryption Results (ECB mode)Downloads: MS Windows Visual C/C++ Libraries Linux/CentOS C/C++ Libraries MAC OS X C/C++ Libraries Solaris C/C++ Libraries C++ Builder Libraries FreeBSD C++ Libraries HP-UX C++ Libraries BlackBerry QNX C++ Libraries Shows sample code in C++ that matches Java JCE encryption results for 128-bit AES encryption using ECB mode. #include <CkCrypt2.h> #include <CkString.h> void ChilkatSample(void) { CkCrypt2 crypt; // Any string argument automatically begins the 30-day trial. bool success; success = crypt.UnlockComponent("30-day trial"); if (success != true) { printf("Crypt component unlock failed\n"); return; } CkString password; password = "secretPassphrase"; // Use the Digest MD5 algorithm to get a 16-byte binary secret key. crypt.put_HashAlgorithm("md5"); crypt.put_EncodingMode("hex"); CkString secretKeyHex; secretKeyHex = crypt.hashStringENC(password); crypt.put_CryptAlgorithm("aes"); crypt.put_CipherMode("ecb"); crypt.put_KeyLength(128); crypt.SetEncodedKey(secretKeyHex,"hex"); CkString text; text = "The quick brown fox jumped over the lazy dog."; CkString encText; encText = crypt.encryptStringENC(text); // Displays: // C960892077D566258D38DF4BBAE8548E6827BF8C27A9D2EE // 6F563FC75003F8F6A05B54CFD28CDC8833BD073F7FC6D031 printf("%s\n",encText); // This Java (JCE) code produces the same results: // String password = "secretPassphrase"; // // MessageDigest md = MessageDigest.getInstance("MD5"); // md.update(password.getBytes("UTF-8"), 0, password.length()); // byte[] rawKey = md.digest(); // // String text = "The quick brown fox jumped over the lazy dog."; // // SecretKeySpec skeySpec = new SecretKeySpec(rawKey, "AES"); // Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding"); // cipher.init(Cipher.ENCRYPT_MODE, skeySpec); // // byte[] encrypted = cipher.doFinal(text.getBytes("UTF-8")); // // System.out.println(toHex(encrypted)); // This is the toHex method in Java: // public static String toHex (byte buf[]) { // // StringBuffer strbuf = new StringBuffer(buf.length * 2); // int i; // // for (i = 0; i < buf.length; i++) { // if (((int) buf[i] & 0xff) < 0x10) // strbuf.append("0"); // // strbuf.append(Long.toString((int) buf[i] & 0xff, 16)); // } // // return strbuf.toString(); // } } |
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