new tool zpckey for UV key origins

.gitignore

@@ -1,5 +1,9 @@
 .vscode/
 
+# ignore key-files
+*.pem
+*.der
+
 # ignore common build directory
 /build/
 

.travis.yml

@@ -1,21 +1,20 @@
-arch:     s390x
+arch:
+        - s390x
+        - amd64
+        - arm64
 os:       linux
-dist:     jammy
-language: cpp
-sudo:     required
-env:      |
-          CFLAGS="-O3 -Wextra -Wextra -Werror"
-          CXXFLAGS="-O3 -Wextra -Wextra -Werror"
+dist:     noble
+language: c
+
 compiler:
         - gcc
         - clang
 
 before_install:
         - sudo apt-get update -qq
-        - sudo apt-get install cmake libjson-c-dev
+        - sudo apt-get install -y cmake pandoc clang-format libjson-c-dev libssl-dev
 
 script:
         - set -o pipefail
-        - mkdir build 2> >(tee) && cd build 2> >(tee)
-        - cmake -DBUILD_TEST=ON .. 2> >(tee)
-        - make 2> >(tee)
+        - cmake -B build -S . 2> >(tee)
+        - cmake --build build 2> >(tee)