Do not alter ukm in gost3410.KEK*

[gogost.git] / www.texi

diff --git a/www.texi b/www.texi
index 8ab786af2dbd16d9f3fd5203a825fb9353590eeb..046d6dcab6bbe48227291452e42e9cb194b9a8f3 100644 (file)
--- a/www.texi
+++ b/www.texi
@@ -2,10 +2,8 @@
 @documentencoding UTF-8
 @settitle GoGOST
 
-@set VERSION 4.2.0
-
 @copying
-Copyright @copyright{} 2015-2019 @email{stargrave@@stargrave.org, Sergey Matveev}
+Copyright @copyright{} 2015-2020 @email{stargrave@@stargrave.org, Sergey Matveev}
 @end copying
 
 @node Top
@@ -17,7 +15,7 @@ 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}.
+You can read about GOST algorithms @url{http://www.gost.cypherpunks.ru/, more}.
 
 Currently supported algorithms are:
 
@@ -58,13 +56,44 @@ Currently supported algorithms are:
     @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