This is an implementation of GLYPH, which is a signature scheme based on Ring-LWE.
This software is mostly a rewrite of a GLYPH implementation in Golang except that:
- The implementation uses different q and B from the papaer for smaller sizes. (Note that these pramemetrs should also make the crypto more secure)
| This implementation | In the Paper | |
|---|---|---|
| Q | 12289 | 59393 |
| B | 4095 | 16383 |
| Bytes of a Public key | 1792 bytes | 2048 bytes |
| Bytes of a Signature | 1942 bytes | 2198 bytes |
| Total | 3734 bytes | 4246 bytes |
The drawback is that we need some time to sign a message (at most a few seconds).
- The implementation uses the NTT algorithm applied in NewHope for faster FFT.
- git
- go 1.9+
are required to compile.
$ go get github.com/AidosKuneen/glyph
message := []byte("some message")
sk, err := glyph.NewSK()
sig, err := sk.Sign(message)
pk := sk.PK()
err:=pk.Verify(sig, message)Using the following test environment...
* Compiler: go version go1.10.3 linux/amd64
* Kernel: Linux WS777 4.13.5-1-ARCH #1 SMP PREEMPT Fri Oct 6 09:58:47 CEST 2017 x86_64 GNU/Linux
* CPU: Celeron(R) CPU G1840 @ 2.80GHz
* Memory: 8 GB
For signing, it takes about 400 mS.
For verification, it takes about 240 uS.
BenchmarkSign-2 10 401147645 ns/op
BenchmarkVeri-2 10000 237446 ns/op
This software includes a rewrite (from C++ to go) of https://github.com/quantumsafelattices/glyph, which is covered by "Unlicense".
This software includes codes from https://github.com/Yawning/newhope, which is covered by "CC0 1.0 Universal" license.
github.com/AidosKuneen/numcpu MIT License
Golang Standard Library BSD 3-clause License