Changed the syntax of cf-keycrypt to match other components

Also did a lot of refactoring, error checking, memory cleaning, et.c.

Squashed commits:
cf-keycrypt: license
cf-keycrypt: PR fixes #1
cf-keycrypt: Fixed copyright in cf-keycrypt.c
cf-keycrypt: CryptoInitialize()
cf-keycrypt: Implemented new syntax as discussed in PR
cf-keycrypt: Acceptance test for new arguments
cf-keycrypt: Print help message when no arguments are added
cf-keycrypt: PR fixes #2
cf-keycrypt: PR fixes #3
cf-keycrypt: PR fixes #4
cf-keycrypt: PR fixes #5
cf-keycrypt: Changed syntax to jimis' suggestion
cf-keycrypt: Moved and fixed acceptance tests

Changelog: Title

Signed-off-by: Ole Herman Schumacher Elgesem <ole.elgesem@northern.tech>
(cherry picked from commit 53d7769)

Author: olehermanse

cf-keycrypt/cf-keycrypt.c

@@ -0,0 +1,26 @@
+body common control
+{
+    inputs => { "../default.cf.sub" };
+    bundlesequence => { default("$(this.promise_filename)") };
+    version => "1.0";
+}
+
+bundle agent test
+{
+    meta:
+        "description"
+            string => "Test that cf-keycrypt can still decrypt content encrypted at the time of initial implementation";
+
+    commands:
+        "$(sys.cf_keycrypt)"
+            args => "-k $(this.promise_dirname)/testkey.priv -d $(this.promise_dirname)/encrypted -o $(G.testfile)";
+}
+
+bundle agent check
+{
+    methods:
+        "any"
+            usebundle => dcs_check_diff("$(this.promise_dirname)/plaintext",
+                                        "$(G.testfile)",
+                                        "$(this.promise_filename)");
+}

tests/acceptance/00_basics/cf-keycrypt/decrypt.cf

@@ -0,0 +1,53 @@
+body common control
+{
+    inputs => { "../default.cf.sub" };
+    bundlesequence => { default("$(this.promise_filename)") };
+    version => "1.0";
+}
+
+bundle agent init
+{
+    methods:
+        "any" usebundle => dcs_fini("$(G.testfile).plain");
+        "any" usebundle => dcs_fini("$(G.testfile).encrypted");
+        "any" usebundle => dcs_fini("$(G.testfile).decrypted");
+        "any" usebundle => generate_key;
+        "any" usebundle => trust_key;
+}
+
+bundle agent test
+{
+    meta:
+        "description"
+        string => "Test cf-keycrypt with different arguments/order";
+
+
+    vars:
+        "text" string => "This secret sauce should be encrypted and decrypted.";
+
+    files:
+        "$(G.testfile).plain"
+            create => "true",
+            edit_defaults => empty,
+            edit_line => insert_lines( "$(text)" );
+
+    commands:
+        "$(sys.cf_keycrypt)"
+            args => "--encrypt $(G.testfile).plain --key $(sys.workdir)/ppkeys/localhost.pub --output $(G.testfile).encrypted";
+        "$(sys.cf_keycrypt)"
+            args => "--decrypt -o $(G.testfile).decrypted --key $(sys.workdir)/ppkeys/localhost.priv $(G.testfile).encrypted";
+    reports:
+        "Binaries/folders:";
+        "$(sys.cf_keycrypt)";
+        "$(sys.cf_agent)";
+        "$(sys.workdir)";
+}
+
+bundle agent check
+{
+    methods:
+        "any"
+            usebundle => dcs_check_diff("$(G.testfile).plain",
+                                        "$(G.testfile).decrypted",
+                                        "$(this.promise_filename)");
+}

tests/acceptance/00_basics/cf-keycrypt/encrypt-decrypt.cf

@@ -0,0 +1,55 @@
+body common control
+{
+    inputs => { "../default.cf.sub" };
+    bundlesequence => { default("$(this.promise_filename)") };
+    version => "1.0";
+}
+
+bundle agent init
+{
+    methods:
+        "any" usebundle => dcs_fini("$(G.testfile).plain");
+        "any" usebundle => dcs_fini("$(G.testfile).encrypted");
+        "any" usebundle => dcs_fini("$(G.testfile).decrypted");
+        "any" usebundle => generate_key;
+        "any" usebundle => trust_key;
+}
+
+bundle agent test
+{
+    meta:
+        "description"
+            string => "Test that cf-keycrypt basic key based encryption and decryption work";
+
+
+    vars:
+        "text"
+            string => "This secret sauce should be encrypted and decrypted.";
+
+    files:
+        "$(G.testfile).plain"
+            create => "true",
+            edit_defaults => empty,
+            edit_line => insert_lines( "$(text)" );
+
+    commands:
+        "$(sys.cf_keycrypt)"
+            args => "-k $(sys.workdir)/ppkeys/localhost.pub -e $(G.testfile).plain -o $(G.testfile).encrypted";
+        "$(sys.cf_keycrypt)"
+            args => "-k $(sys.workdir)/ppkeys/localhost.priv -d $(G.testfile).encrypted -o $(G.testfile).decrypted";
+
+    reports:
+        "Binaries/folders:";
+        "$(sys.cf_keycrypt)";
+        "$(sys.cf_agent)";
+        "$(sys.workdir)";
+}
+
+bundle agent check
+{
+  methods:
+      "any"
+        usebundle => dcs_check_diff("$(G.testfile).plain",
+                                    "$(G.testfile).decrypted",
+                                    "$(this.promise_filename)");
+}

tests/acceptance/00_basics/cf-keycrypt/encrypt.cf.x

@@ -0,0 +1,28 @@
+body common control
+{
+    inputs => { "../../default.cf.sub" };
+    bundlesequence => { default("$(this.promise_filename)") };
+    version => "1.0";
+}
+
+bundle agent test
+{
+    meta:
+        "description"
+            string => "Test that cf-keycrypt encryption uses random padding";
+
+    commands:
+        "$(sys.cf_keycrypt)"
+            args => "-e $(this.promise_dirname)/plaintext -k $(this.promise_dirname)/testkey.pub -o $(G.testfile)";
+        "$(sys.cf_keycrypt)"
+            args => "-e $(this.promise_dirname)/plaintext -k $(this.promise_dirname)/testkey.pub -o $(G.testfile).2";
+}
+
+bundle agent check
+{
+    methods:
+        "any"
+            usebundle => dcs_check_diff("$(G.testfile)",
+                                        "$(G.testfile).2",
+                                        "$(this.promise_filename)");
+}