Issue link: https://resources.pcb.cadence.com/i/1180526
PSpice User Guide Things you need to know October 2019 68 Product Version 17.4-2019 © 1999-2019 All Rights Reserved. Encrypting PSpice Models You can encrypt PSpice models so that users can simulate the models but cannot view the contents of your models. The encryption utility can be used from the command prompt by using the PspiceEnc command. You can also run the encryption utility from Model Editor. PSpice uses the following two encryption algorithms: ■ 256-bit AES encryption algorithm ■ 16-bit DES encryption algorithm By default, AES is used for encryption. During simulation, models encrypted using either algorithm are decrypted automatically. Note the following for the encryption utility: ■ Probe does not show any internal nodes from encrypted subcircuits. ■ Encrypted parameters in .SUBCKT and .MODEL statements in a library file are not visible in the out file. ■ If a PSpice model contains a subcircuit, its internal nodes are visible in probe. However, if the PSpice model is encrypted, even its internal subcircuit nodes are hidden from probe, irrespective of whether the subcircuit itself is encrypted or not. ■ Encrypted data from Crash log is not exposed. ■ Auto-inserted devices, such as D2A converters, A2D converters, and Power blocks are hidden if they are inserted between encrypted components. ■ For auto-inserted components, circuit text is hidden from the out file to hide the node names. ■ Model data is not written in the Output file if the model is associated with a hidden device. ■ For .ACCT, device summary is hidden if encrypted devices exist in the design. ■ .OPTIONS NODE does not show nodes from encrypted blocks and hidden devices in connectivity of visible nodes.