View source for Template:Json HMACtoBASE64 Block-Java

    
    public static String hmacSha1ToBase64(String value, String key) throws Exception{
        byte[] keyBytes = key.getBytes();
        SecretKeySpec signingKey = new SecretKeySpec(keyBytes, "HmacSHA1");
        Mac mac = Mac.getInstance("HmacSHA1");
        mac.init(signingKey);
        byte[] rawHmac = mac.doFinal(value.getBytes());
        byte[] base64Bytes = Base64.encodeBase64(rawHmac);
        return new String(base64Bytes, "UTF-8");
    }