Java Method Which Can Provide The Same Output As Python Method For HMAC-SHA256 In Hex
I am now trying to encode the string using HMAC-SHA256 using Java. The encoded string required to match another set of encoded string generated by Python using hmac.new(mySecret, m
Solution 1:
Are you sure your key and input are identical and correctly encoded in both java and python?
HMAC-SHA256 works the same on both platforms.
Java
Mac sha256_HMAC = Mac.getInstance("HmacSHA256");
SecretKeySpec secretKey = new SecretKeySpec("1234".getBytes(), "HmacSHA256");
sha256_HMAC.init(secretKey);
byte[] hash = sha256_HMAC.doFinal("test".getBytes());
String check = Hex.encodeHexString(hash);
System.out.println(new String(check));
Output
24c4f0295e1bea74f9a5cb5bc40525c8889d11c78c4255808be00defe666671f
Python
print hmac.new("1234", "test", hashlib.sha256).hexdigest();
Output
24c4f0295e1bea74f9a5cb5bc40525c8889d11c78c4255808be00defe666671f
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