5.9. GnuTLS (Optional)
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## 5.9. GnuTLS (Optional)

The GNU Transport Layer Security Library is used to enable TLS decryption using an RSA private key.

#### Unix

If this library isn’t already installed or available as a package for your platform, you can get it at https://gnutls.org/.

#### Windows

We provide packages cross-compiled using MinGW32 at https://dev-libs.wireshark.org/windows/packages/.

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