AES: more unit test fixes
AES: more unit test fixes

thaigialai1987/phpseclib,kenichiii/phpseclib,melya/phpseclib,kenichiii/phpseclib,melya/phpseclib,metaclassing/phpseclib,danog/phpseclib,phpseclib/phpseclib,danog/phpseclib,creatuity/phpseclib,splitice/phpseclib,metaclassing/phpseclib,terrafrost/phpseclib,creatuity/phpseclib,paragonie-scott/phpseclib,thaigialai1987/phpseclib,splitice/phpseclib,paragonie-scott/phpseclib