Beyond Linux® From Scratch (System V Edition) - Version r13.1-84

Chapter 9. General Libraries

Qca-2.3.12

Introduction to Qca

Qca aims to provide a straightforward and cross-platform crypto API, using Qt datatypes and conventions. Qca separates the API from the implementation, using plugins known as Providers.

[Note]

Note

Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.

Package Information

Qca Dependencies

Required

make-ca-1.16.1, CMake-4.4.3, Qt-6.11.2, and Which-2.25

Optional

Cyrus SASL-2.1.28, GnuPG-2.5.22, libgcrypt-1.12.3, libgpg-error-1.61, nss-3.128, NSPR-4.40, p11-kit-0.26.5, Doxygen-1.18.0, and Botan

Installation of Qca

First, fix the location of the CA certificates: 

sed -i '/toTry$/a\      "/etc/pki/tls/certs/ca-bundle.crt"' CMakeLists.txt

Install Qca by running the following commands: 

mkdir build &&
cd    build &&

cmake -D CMAKE_INSTALL_PREFIX=$QT6DIR            \
      -D CMAKE_BUILD_TYPE=Release                \
      -D QT6=ON                                  \
      -D QCA_INSTALL_IN_QT_PREFIX=ON             \
      -D QCA_MAN_INSTALL_DIR:PATH=/usr/share/man \
      -W no-author ..                            &&
make

To test the results, issue: make test.

Now, as the root user: 

make install

Command Explanations

-D CMAKE_BUILD_TYPE=Release: This switch is used to apply a higher level of compiler optimizations.

-D QT6=ON: This switch ensures that the package is built with Qt-6.11.2.

-D QCA_MAN_INSTALL_DIR:PATH=/usr/share/man: This switch installs the qca man page in the normal location.

Contents

Installed Programs: mozcerts-qt6 and qcatool-qt6
Installed Libraries: libqca-qt6.so, libqca-cyrus-sasl.so, libqca-gcrypt.so, libqca-gnupg.so, libqca-logger.so, libqca-nss.so, libqca-ossl.so, and libqca-softstore.so
Installed Directories: $QT6DIR/include/Qca-qt6, $QT6DIR/lib/cmake/Qca-qt6, and $QT6DIR/lib/qca-qt6

Short Descriptions

mozcerts-qt6

is a command line tool for converting certdata.txt into outfile.pem files

qcatool-qt6

is a command line tool for performing various cryptographic operations with Qca

libqca-qt6.so

is the Qt Cryptography Architecture (Qca) library