pEpEngine/doc

Information about the pEp Engine

Dependencies

The p≡p Engine depends on the following projects:

• run-time dependencies
  • One of the following OpenPGP implementations:
    • GnuPG version 2.1.17 or later with GPGME (at least version 1.7.0) https://gnupg.org/
    • For platforms not supporting pinentry (e.g. Android) - GnuPG version 2.0.30 with GPGME version 1.6.0 (or later) https://gnupg.org/
    • a fork of NetPGP, https://pep.foundation/dev/repos/netpgp-et/
    • Sequoia, which in turn requires:
      • Rust
      • libnettle
  • One of the following MIME libraries:
    • a fork of libetpan, https://github.com/fdik/libetpan
    • pEpMIME
  • zlib, http://zlib.net/
  • libcurl (Only with NetPGP), https://curl.haxx.se/libcurl/
  • libuuid, https://www.kernel.org/pub/linux/utils/util-linux/
  • SQLite, https://sqlite.org
  • OpenSSL (Only with NetPGP), https://www.openssl.org
• compile-time dependencies
  • asn1c (version v0.9.28), http://lionet.info/asn1c/blog/
  • yml2, https://fdik.org/yml//toolchain
    • Python 3
    • LXML
  • One of the following build systems:
    • GNU make (on Linux and macOS)
    • MSBuild distributed with Microsoft Visual Studio 2015 (on Windows)
  • One of the following compilers for C and C++:
    • GNU GCC (on Linux)
    • Apple "clang" LLVM (on MacOS)
    • Microsoft MSVC/MSVC++ distributed with Microsoft Visual Studio 2015 (on Windows)
  • A script for compiling OpenSSL for iOS, https://github.com/sinofool/build-openssl-ios/
  • binutils

The pEp Engine's databases

The p≡p Engine uses two databases:

• the management database
  • ~/.pEp_management on *NIX
  • %LOCALAPPDATA%\pEp\management.db on Windows
• the Trustword database
  • /usr/local/share/system.db on *NIX
  • %ALLUSERSPROFILE%\pEp\system.db on Windows

The management db is created by the first call of init() of p≡p Engine. It does not need to be created manually. system.db is created by using the DDL in db/create_system_db.sql; the database content is created by db/dic2csv.py out of hunspell's dictionary packages (or something similar) and then imported using sqlite3's .import command. Dictionary files for different languages are part of the p≡p Engine source distribution.

You can test the Trustwords in system.db using db/trustwords.py. Both Python tools have a --help switch.