@settitle GoGOST
@copying
-Copyright @copyright{} 2015-2018 @email{stargrave@@stargrave.org, Sergey Matveev}
+Copyright @copyright{} 2015-2021 @email{stargrave@@stargrave.org, Sergey Matveev}
@end copying
@node Top
It is
@url{https://www.gnu.org/philosophy/pragmatic.html, copylefted}
@url{https://www.gnu.org/philosophy/free-sw.html, free software}:
-licenced under @url{https://www.gnu.org/licenses/gpl-3.0.html, GPLv3+}.
-You can read about GOST algorithms @url{http://gost.cypherpunks.ru/, more}.
+licenced under @url{https://www.gnu.org/licenses/gpl-3.0.html, GPLv3}.
+You can read about GOST algorithms @url{http://www.gost.cypherpunks.ru/, more}.
Currently supported algorithms are:
(@url{https://tools.ietf.org/html/rfc7091.html, RFC 7091})
public key signature function
@item various 34.10 curve parameters included
+@item Coordinates conversion from twisted Edwards to Weierstrass
+ form and vice versa
@item VKO GOST R 34.10-2001 key agreement function
(@url{https://tools.ietf.org/html/rfc4357.html, RFC 4357})
@item VKO GOST R 34.10-2012 key agreement function
(@url{https://tools.ietf.org/html/rfc7836.html, RFC 7836})
+@item @code{KDF_GOSTR3411_2012_256} KDF function
+ (@url{https://tools.ietf.org/html/rfc7836.html, RFC 7836})
@item GOST R 34.12-2015 128-bit block cipher Кузнечик (Kuznechik)
(@url{https://tools.ietf.org/html/rfc7801.html, RFC 7801})
+@item GOST R 34.12-2015 64-bit block cipher Магма (Magma)
@item GOST R 34.13-2015 padding methods
+@item MGM AEAD mode for 64 and 128 bit ciphers
+@item TLSTREE keyscheduling function
+@item ESPTREE/IKETREE (IKE* is the same as ESP*) keyscheduling function
+@item @code{PRF_IPSEC_PRFPLUS_GOSTR3411_2012_@{256,512@}} and generic
+ @code{prf+} functions (Р 50.1.111-2016 with IKEv2
+ @url{https://tools.ietf.org/html/rfc5831.html, RFC 7296})
@end itemize
+Probably you could be interested in
+@url{//www.gostls13.cypherpunks.ru/, Go's support of GOST TLS 1.3}.
+
+Example 34.10-2012-256 keypair generation, signing and verifying:
+
+@verbatim
+import (
+ "crypto/rand"
+ "io"
+ "go.cypherpunks.ru/gogost/v5/gost3410"
+ "go.cypherpunks.ru/gogost/v5/gost34112012256"
+)
+func main() {
+ data := []byte("data to be signed")
+ hasher := gost34112012256.New()
+ _, err := hasher.Write(data)
+ dgst := hasher.Sum(nil)
+ curve := gost3410.CurveIdtc26gost34102012256paramSetB()
+ prvRaw := make([]byte, 32)
+ _, err = io.ReadFull(rand.Reader, prvRaw)
+ prv, err := gost3410.NewPrivateKey(curve, prvRaw)
+ pub, err := prv.PublicKey()
+ pubRaw := pub.Raw()
+ sign, err := prv.Sign(rand.Reader, dgst, nil)
+ pub, err = gost3410.NewPublicKey(curve, pubRaw)
+ isValid, err := pub.VerifyDigest(dgst, sign)
+ if !isValid { panic("signature is invalid") }
+}
+@end verbatim
+
Please send questions, bug reports and patches to
@url{https://lists.cypherpunks.ru/mailman/listinfo/gost, gost}
mailing list. Announcements also go to this mailing list.
@insertcopying
+@include faq.texi
@include news.texi
-@include download.texi
+@include install.texi
@bye