Crypto.json

{
   "$types":{
      "UnrealBuildTool.EncryptionAndSigning+CryptoSettings, UnrealBuildTool, Version=4.0.0.0, Culture=neutral, PublicKeyToken=null":"1",
      "UnrealBuildTool.EncryptionAndSigning+EncryptionKey, UnrealBuildTool, Version=4.0.0.0, Culture=neutral, PublicKeyToken=null":"2",
      "UnrealBuildTool.EncryptionAndSigning+SigningKeyPair, UnrealBuildTool, Version=4.0.0.0, Culture=neutral, PublicKeyToken=null":"3",
      "UnrealBuildTool.EncryptionAndSigning+SigningKey, UnrealBuildTool, Version=4.0.0.0, Culture=neutral, PublicKeyToken=null":"4"
   },
   "$type":"1",
   "EncryptionKey":{
      "$type":"2",
      "Name":"null",
      "Guid":"null",
      "Key":"Your Base64 key here"
   },
   "SigningKey": null,
   "bEnablePakSigning":true,
   "bEnablePakIndexEncryption":true,
   "bEnablePakIniEncryption":true,
   "bEnablePakUAssetEncryption":true,
   "bEnablePakFullAssetEncryption":false,
   "bDataCryptoRequired":true,
   "PakEncryptionRequired":true,
   "PakSigningRequired":true,
   "SecondaryEncryptionKeys":[

   ]
}