Decrypter: ivpaste keycaptcha
IVPASTE uses two KEY-CAPTCHA methods. One is the classic TEXT CAPTCHA, and the other is the IMAGE CAPTCHA (You have to order images like a puzzle)
Jdownloader invokes both methods but only TEXT CAPTCHA works. When you solve a IMAGE CAPTCHA you will always get this error: "ivpaste.com: incorrect captcha code" (i have spanish jdownloader so maybe my translation is not accurate).