kris/xmss-KAT-generator
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Joost Rijneveld 998137622a
Fix integer underflow when writing updated sk 
This caused secret key files to become close to MAXINT bytes, as
the unsigned int that is the private key size would be subtracted
from MAXINT when its negative was used as offset.
2017-10-23 13:25:01 +02:00
test Fix integer underflow when writing updated sk 2017-10-23 13:25:01 +02:00
.gitignore Add UI test files to create sample signatures 2017-10-17 17:11:18 +02:00
fips202.c Clean up includes 2017-10-19 17:38:26 +02:00
fips202.h Unify header guards 2017-10-19 16:04:42 +02:00
hash_address.c Simplify licensing using LICENSE file 2017-10-19 17:38:34 +02:00
hash_address.h Simplify licensing using LICENSE file 2017-10-19 17:38:34 +02:00
hash.c Remove unnecessary endianness difference 2017-10-19 18:11:52 +02:00
hash.h Remove unnecessary endianness difference 2017-10-19 18:11:52 +02:00
LICENSE Simplify licensing using LICENSE file 2017-10-19 17:38:34 +02:00
Makefile Document and simplify library usage 2017-10-23 13:03:44 +02:00
params.c Add UI test files to create sample signatures 2017-10-17 17:11:18 +02:00
params.h Unify header guards 2017-10-19 16:04:42 +02:00
randombytes.c Refactor for more consistent style and readability 2017-08-03 17:39:37 +02:00
randombytes.h Unify header guards 2017-10-19 16:04:42 +02:00
README.md Document and simplify library usage 2017-10-23 13:03:44 +02:00
wots.c Simplify licensing using LICENSE file 2017-10-19 17:38:34 +02:00
wots.h Simplify licensing using LICENSE file 2017-10-19 17:38:34 +02:00
xmss_commons.c Simplify licensing using LICENSE file 2017-10-19 17:38:34 +02:00
xmss_commons.h Simplify licensing using LICENSE file 2017-10-19 17:38:34 +02:00
xmss_core_fast.c Resolve comparison warnings 2017-10-19 17:38:34 +02:00
xmss_core_fast.h Simplify licensing using LICENSE file 2017-10-19 17:38:34 +02:00
xmss_core.c Simplify licensing using LICENSE file 2017-10-19 17:38:34 +02:00
xmss_core.h Simplify licensing using LICENSE file 2017-10-19 17:38:34 +02:00
xmss.c Revert to using runtime-only parameter struct 2017-10-16 12:09:07 +02:00
xmss.h Refactor for more consistent style and readability 2017-08-03 17:39:37 +02:00

README.md

XMSS reference code

This repository contains the reference implementation that accompanies the Internet Draft "XMSS: Extended Hash-Based Signatures", draft-irtf-cfrg-xmss-hash-based-signatures.

This reference implementation supports all parameter sets as defined in the Draft at run-time (specified by prefixing the public and private keys with a 32-bit oid). Implementations that want to use compile-time parameter sets can remove the struct xmss_params function parameter.

While the behavior of the code in this repository is supposed to be stable, the API is not yet fully complete. In particular, the wrapper for run-time parameters does not yet support the back-end functions that make use of BDS traversal (TODO). We will also add more extensive test functionality, making it easier to compare to other XMSS implementations (TODO).

When using the current code base, please be careful, expect changes and watch this document for further documentation.

Dependencies

For the SHA-2 hash functions (i.e. SHA-256 and SHA-512), we rely on OpenSSL. Make sure to install the OpenSSL development headers. On Debian-based systems, this is achieved by installing the OpenSSL development package libssl-dev.

License

This reference implementation was written by Andreas Hülsing and Joost Rijneveld. All included code is available under the CC0 1.0 Universal Public Domain Dedication.