U-he ACE v1.4.0.3898 WIN OSX Regged-R2R

DATE : 2020.01.01 | NUMBER : R2R-8584 | SiZE : 61.83 MB

PLATFORM : WiN32/64 - VST/VST3/AAX | MacOSX - AU/VST/VST3/AAX

ACE belongs to a new generation of synthesizers developed with the latest, fastest computers in mind. ACE offers classic modular synthesis and more at a fraction of the cost of dedicated hardware. But like its hardware forebears, you can patch any output into any input: the number of different ways to connect modules together is practically infinite. Needless to say, you will never run out of cables!

HAPPY NEW YEAR!!!

This REGGED release uses valid user+serial pair based on the previous leak.

That's how their protection works and you should get same serial by the

legit purchase. To understand better about their scheme, read below.

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Here is how U-he main protection works:

1. Generate value (0 - 2047) from the licensee name.

We call this value "UserValue".

2. Get the hash of serial number by UrsHash.

UrsHash is combination of WHIRLPOOL512 and SHA512)

3. Get hardcodedHash[UserValue] and compare with calculated hash.

If it matches, license = OK.

This means, serial number is not generated for users dynamically. The hash

of all serial numbers are hardcoded to the app since the first release. User

name is just used to determine which correct serial number to assign. This

is good if dev has many customers, otherwise serial check will be dull and

slow (check all hardcoded serials one by one, this is done by RobPapen).

However, there is the weak point in this "wise" protection. Once legit serial

numbers are leaked, that serial number can be used to other name. You can

make another licensee for that serial by colliding "UserValue". This is not

easy to avoid. Blacklisting the leaked serial number can affect to the legit

users too, because that user may have same UserValue with leaked licensee.

In short:

• Uhe app contains 2048 correct hashed serial numbers.
• Calculate valid serial from hashed serial is nearly impossible.
• User A and User B may have same legit serial number.

-> Generate another valid name for leaked serial can be possible.

Enjoy checking many security aspects for the uhe type protection.

These UserValue+Hash protection is used by Arturia, Audiority, SonicAcademy,

LVC-Audio, Youlean etc. Valid user+serial pair can be made from legit serial.