Add support for encrypting IP addresses #gdpr #7481
Based on #6242, with the following changes:
With this change, PowerDNS core gains ability to encrypt & decrypt IP addresses as described in https://firstname.lastname@example.org/on-ip-address-encryption-security-analysis-with-respect-for-privacy-dabe1201b476 For IPv4 this uses ipcrypt, for IPv6 it uses a 128-bit AES ECB operation. This CR also hooks up ipencrypt() and ipdecrypt() methods for dnsdist use, specifically to pseudonomyse logging.
Otherwise we could compile it as C++ code, leading to this warning from the compiler: ``` cc1: warning: command line option ‘-std=c++11’ is valid for C++/ObjC++ but not for C ```
This was referenced
Apr 4, 2019
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