问用HMAC SHA-256和Base64Encoder签名

EN

require 'base64'

require 'openssl'

secret = "xyz"

request = "abc"

digest = OpenSSL::Digest::Digest.new('sha256')

signature = Base64.encode64(OpenSSL::HMAC.digest(digest, secret, request)).chomp

 SecretKey secretKey = null;    

 byte[] keyBytes = keyString.getBytes("UTF-8");     

 Mac mac = Mac.getInstance("HMACHSA256");

 secretKey = new SecretKeySpec(keyBytes,mac.getAlgorithm());

 mac.init(secretKey);   

 byte[] text = baseString.getBytes("UTF-8");

 //mac.update(digest.digest());

 byte[] encodedText = mac.doFinal(text);    

 return new String(Base64.encodeBase64(encodedText)).trim();