Edit Question - KnowledgeHub

Title Body

I have a tomcat server running some Java code that lets users authenticate using an API key. The request uses an HMAC created with SHA256. I have a Ruby client that I am using to make the request and since I'm new to encryption I am having a difficult time getting it to generate a matching HMAC. I have tried not making it URL safe, and that matches. So I'm really wondering is how I can get the Ruby client to match with the URL safe version (since I can't change the Java code). It's just got an extra = character at the end. Thanks in advance for any help. For Ruby I am using 1.9.3 and for Java I am using 6u31 along with the commons-codec-1.6.jar library from apache. Code Ruby: require "openssl" require "base64" json_str = "{'community':'LG7B734A', 'login_id':'user1', 'time':'1331928899'}" digest = OpenSSL::Digest::Digest.new("sha256") key = [ "4cc45e4258121c3fec84147673e1bd88e51b1c177aafcfa2da72bd4655c9f933" ] hmac = OpenSSL::HMAC.digest(digest, key.pack("H*"), json_str) encoded_url_safe = Base64.urlsafe_encode64(hmac) encoded = Base64.encode64(hmac) puts("Encoded (Url Safe): " + encoded_url_safe) puts("Encoded : " + encoded) Java: import org.apache.commons.codec.binary.Base64; import org.apache.commons.codec.binary.Hex; import javax.crypto.spec.SecretKeySpec; import javax.crypto.Mac; public class ExampleHMAC { public static void main(String[] args) throws Exception { String key = "4cc45e4258121c3fec84147673e1bd88e51b1c177aafcfa2da72bd4655c9f933"; byte[] keyBytes = Hex.decodeHex(key.toCharArray()); SecretKeySpec keySpec = new SecretKeySpec(keyBytes, "HmacSHA256"); Mac mac = Mac.getInstance("HmacSHA256"); mac.init(keySpec); String jsonStr = "{'community':'LG7B734A', 'login_id':'user1', 'time':'1331928899'}"; byte[] hmacBytes = mac.doFinal(jsonStr.getBytes()); String encodedUrlSafe

Tags (comma-separated) Cancel