在PHP中将SHA1加密和SHA1转换为十六进制

Question

I have two methods in Java and I want to do the same methods in php. I don't know absolutely nothing in php. How can I do it?

Method 1:

public static String encyptPassword (String in) throws UnsupportedEncodingException, NoSuchAlgorithmException{
    byte[] bytes=in.getBytes("UTF-8");
    MessageDigest md=MessageDigest.getInstance(MGF1ParameterSpec.SHA1.getDigestAlgorithm());
    md.update(bytes);
    byte[] digest=md.digest();
    return toHex(digest);
}

Method 2:

public static String toHex(byte[] bytes) {
    BigInteger bi = new BigInteger(1, bytes);
    return String.format("%0" + (bytes.length << 1) + "x", bi);
}

The methods (function?) in php must have the same result as in java, because it's hashing passwords for a working and online login system.

I'm trying it about 3 hours, but I can't do it or found a solution. I think I read all posts on Stack. Can you help me? Thanks.

Answer 1

PHP Fiddle - hit run to see the result

<?php

    $pass = 'MySecretP@55';
    $hashed = hash("SHA512", $pass);
    echo $hashed;
    echo '<hr>' . bin2hex($hashed);

?>

Above is sha512 , which is certainly better that sha1 , and bcrypt with reasonably high cost is considered as the best currently

Answer 2

1. Hashing != Encryption
2. SHA1 is weak, SHA2 is better, bcrypt is currently the best generally-available hashing algorithm for password storage.
3. $myHash = hash("SHA1", "foobar") Docs
4. Don't use #3, use $myActuallySecureHash = password_hash("foobar") Docs
5. Use #4.
6. PHP < 5.4 is not an excuse.