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(Unicode C) Duplicate Java HMAC-SHA1 using ChilkatThis example uses Chilkat to produce the same results as this Java code: import org.apache.commons.codec.binary.Base64; import org.apache.commons.codec.binary.Hex; import javax.crypto.Mac; import javax.crypto.spec.SecretKeySpec; import java.security.InvalidKeyException; import java.security.Key; import java.security.NoSuchAlgorithmException; public void hmacSignatureExample() throws NoSuchAlgorithmException, InvalidKeyException { final String method = "POST"; final Long epoch = 1456765639015L; // Hardcoding for this example final String uri = "/api/v5/policy/1234567890"; final String newline = "\n"; final String privateKey = "qwfvUeVRWAwyjlAzGivefFPTg+m6QtBPmDVv7Ra /u7K3UuVVRhrZ/qc8EPh8IGJatuxsWD4EX+D9qE/eVvLTpw=="; final String publicKey = "16baedbe244b6c063968850716afb319a"; // Prepare the signature final String plainText = method + newline + epoch + newline + uri + newline; // Hash the plaintext with the private key final byte[] keyBytes = privateKey.getBytes(); final Key key = new SecretKeySpec(keyBytes, 0, keyBytes.length, "HmacSHA1"); final Mac mac = Mac.getInstance("HmacSHA1"); mac.init(key); String signatureHash = new String(Hex.encodeHex(mac.doFinal(plainText. getBytes()))); // Prefix with public key signatureHash = publicKey + ":" + signatureHash; // Base64 encode to produce AUTHORIZATION final String authorization = new String(Base64.encodeBase64(signatureHash. getBytes())); }
#include <C_CkCrypt2W.h> #include <C_CkStringBuilderW.h> void ChilkatSample(void) { BOOL success; const wchar_t *privateKey; const wchar_t *publicKey; const wchar_t *plainText; HCkCrypt2W crypt; const wchar_t *hmacHex; HCkStringBuilderW sbSignatureHash; const wchar_t *authorization; // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // This is clearly in base64 encoding. privateKey = L"qwfvUeVRWAwyjlAzGivefFPTg+m6QtBPmDVv7Ra/u7K3UuVVRhrZ/qc8EPh8IGJatuxsWD4EX+D9qE/eVvLTpw=="; // This is clearly in the hex encoding. publicKey = L"16baedbe244b6c063968850716afb319a"; plainText = L"POST\n1456765639015\n/api/v5/policy/1234567890\n"; crypt = CkCrypt2W_Create(); // We want HMAC-SHA1. CkCrypt2W_putMacAlgorithm(crypt,L"HMAC"); CkCrypt2W_putHashAlgorithm(crypt,L"SHA1"); // The Java code (above) is literally using the us-ascii chars of the base64 string as the HMAC key. // (It is NOT using the base64 decoded bytes.) CkCrypt2W_SetMacKeyEncoded(crypt,privateKey,L"us-ascii"); // We want our HMAC-SHA1 output to be a hex string. CkCrypt2W_putEncodingMode(crypt,L"hex_lower"); hmacHex = CkCrypt2W_macStringENC(crypt,plainText); wprintf(L"%s\n",hmacHex); // The expected result is: dd3e8440f6b550f152156ea5e12d3e20b262adae sbSignatureHash = CkStringBuilderW_Create(); CkStringBuilderW_Append(sbSignatureHash,publicKey); CkStringBuilderW_Append(sbSignatureHash,L":"); CkStringBuilderW_Append(sbSignatureHash,hmacHex); authorization = CkStringBuilderW_getEncoded(sbSignatureHash,L"base64",L"utf-8"); wprintf(L"Authorization: %s\n",authorization); // The expected result is: MTZiYWVkYmUyNDRiNmMwNjM5Njg4NTA3MTZhZmIzMTlhOmRkM2U4NDQwZjZiNTUwZjE1MjE1NmVhNWUxMmQzZTIwYjI2MmFkYWU= CkCrypt2W_Dispose(crypt); CkStringBuilderW_Dispose(sbSignatureHash); } |
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