Verified to be working with:

• 2021.3.23 OSX
• 2022.2.16 Win

不要再去用这个方法破解，没有用.

1. openssl req -config openssl.conf -newkey rsa:2048 -keyout private.key -out request.csr
2. openssl x509 -req -days 365 -in request.csr -signkey private.key -out certificate.crt
3. openssl x509 -in certificate.crt -outform der -out certificate.der
4. ls -l certificate.der
5. openssl x509 -in certificate.crt -pubkey -noout > mypub.key

Process:

1. Generate keypair and cert with provided openssl.conf. Cert size in DER format must be 1267 bytes (这里应该是unicode编码，一个字母占两个字节)
2. Replace cert in Unity.Licensing.EntitlementResolver.dll using HEX editor or patch binary
3. Modify license.xml template to your needs
4. Generate Unity_lic.ulf signed with private key using sign binary
5. ts.go is an implementation of TimeStamp encoder/decoder just in case.

Usage:

• patch /path/to/Unity.Licensing.EntitlementResolver.dll
• sign
• cp Unity_lic.ulf /path/to/license/dir

Block domains in /etc/hosts

# unity
127.0.0.1 license.unity3d.com
127.0.0.1 core.cloud.unity3d.com
127.0.0.1 activation.unity3d.com
127.0.0.1 cdp.cloud.unity3d.com

# this one seems to be optional
# blocking won't allow signing into Unity ID
127.0.0.1 api.unity.com