Encryption has been around for several years but it finally comes to LS-DYNA in the form of GPG encryption which can be used at no additional cost to encrypt LS-DYNA input files to protect important proprietary data such as material definitions. Any portion of the input file can also be encrypted in multilple blocks of information except the *KEYWORD and the *INCLUDE keywords. Information related to the encrypted data will not be output to D3HSP file. The following images show the process of encryption.
Public Key Cipher
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Encryption
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Decryption
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Running Encrypted Files in LS-DYNA
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Some Common GPG commands
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Additional References
GnuPG Home Page
Pretty Good Privacy (PGP) web site
GPG Quick Guide
