단방향 암호화 문자열 crypt sha512 암호화

$newpasshash = crypt("비밀번호", '$6$rounds=10000$salts$');

 

$6 : SHA512 //SHA256은 $5

rounds=10000 : 해싱루프 숫자 : 1000 ~ 999999999 까지

salts : 임의의 문자열

 

결과 :  $6$rounds=10000$salts$oS9pt.WPNWUrsuH64IR8jC0i0vbHTRHJRC5tCD.fw.lgHtFxB6Y6FuqhNt6WQschEyBLK1sTN8qUURZDV672e.

 

 

 

비교 : 

if(validate_pw("비밀번호", "$6$rounds=10000$salts$oS9pt.WPNWUrsuH64IR8jC0i0vbHTRHJRC5tCD.fw.lgHtFxB6Y6FuqhNt6WQschEyBLK1sTN8qUURZDV672e.")){ 

echo "암호일치";

}else{

echo "불일치";

}

 

 

 

function validate_pw($password, $hash){

    /* Regenerating the with an available hash as the options parameter should

     * produce the same hash if the same password is passed.

     */

    return crypt($password, $hash)==$hash;

 

}