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authorlloyd <lloyd@randombit.net>2009-09-10 00:44:36 +0000
committerlloyd <lloyd@randombit.net>2009-09-10 00:44:36 +0000
commit74c8b2300a6a63b5bca2332e8ff42565cd1601dc (patch)
treee830e51c384d07320a681cc1070804403ee1f752 /doc
parentcf3dbad02b3e7e703cc41c62652d1a5ae79a31d8 (diff)
Add example of the package transform
Diffstat (limited to 'doc')
-rw-r--r--doc/examples/package.cpp61
1 files changed, 61 insertions, 0 deletions
diff --git a/doc/examples/package.cpp b/doc/examples/package.cpp
new file mode 100644
index 000000000..981abaa31
--- /dev/null
+++ b/doc/examples/package.cpp
@@ -0,0 +1,61 @@
+
+#include <botan/botan.h>
+#include <botan/serpent.h>
+#include <botan/package.h>
+
+#include <iostream>
+#include <fstream>
+#include <vector>
+
+using namespace Botan;
+
+std::vector<byte> slurp_file(const std::string& filename)
+ {
+ std::ifstream in(filename.c_str());
+
+ std::vector<byte> out;
+ byte buf[4096] = { 0 };
+
+ while(in.good())
+ {
+ in.read((char*)buf, sizeof(buf));
+ ssize_t got = in.gcount();
+
+ out.insert(out.end(), buf, buf+got);
+ }
+
+ return out;
+ }
+
+int main(int argc, char* argv[])
+ {
+ if(argc != 2)
+ {
+ std::cout << "Usage: " << argv[0] << " filename\n";
+ return 1;
+ }
+
+ LibraryInitializer init;
+
+ AutoSeeded_RNG rng;
+
+ BlockCipher* cipher = new Serpent;
+
+ std::vector<byte> input = slurp_file(argv[1]);
+ std::vector<byte> output(input.size() + cipher->BLOCK_SIZE);
+
+ AllOrNothingTransform::package(rng, new Serpent,
+ &input[0], input.size(),
+ &output[0]);
+
+ std::vector<byte> unpackage_output(output.size() - cipher->BLOCK_SIZE);
+
+ AllOrNothingTransform::unpackage(new Serpent,
+ &output[0], output.size(),
+ &unpackage_output[0]);
+
+ if(unpackage_output == input)
+ std::cout << Package/unpackage worked\n";
+ else
+ std::cout << "Something went wrong :(\n";
+ }