diff options
author | lloyd <[email protected]> | 2009-11-05 07:52:35 +0000 |
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committer | lloyd <[email protected]> | 2009-11-05 07:52:35 +0000 |
commit | a6177d3af54437375c752b8046230b7fb98c8563 (patch) | |
tree | 2e0199f9fb93725c1a2f0cfea03458c03bbbbba9 /doc/examples | |
parent | 56c3c044215f36fe00c9a8a2e06a84f969996cb7 (diff) |
Add format preserving encryption, design is FE1/FD1 from the paper
Format-Preserving Encryption (http://eprint.iacr.org/2009/251). This
doesn't implement the rank functions which are necessary for the actual
format-preserving part, though that would be nice to add to the example.
Diffstat (limited to 'doc/examples')
-rw-r--r-- | doc/examples/fpe.cpp | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/doc/examples/fpe.cpp b/doc/examples/fpe.cpp new file mode 100644 index 000000000..9384a0d2d --- /dev/null +++ b/doc/examples/fpe.cpp @@ -0,0 +1,22 @@ +#include <botan/fpe.h> +#include <botan/init.h> + +using namespace Botan; + +#include <iostream> + +int main() + { + LibraryInitializer init; + + BigInt n = 100000000; + BigInt x = 49604394; + + SymmetricKey key("AAAAAAAAAAAAAAAA"); + MemoryVector<byte> tweak(4); + + BigInt c = fpe_encrypt(n, x, key, tweak); + BigInt p = fpe_decrypt(n, c, key, tweak); + + std::cout << c << ' ' << p << ' ' << x << '\n'; + } |