crypto/secp256k1: remove external LGPL dependencies (#17239)

1 files changed, 0 insertions, 42 deletions

diff --git a/crypto/randentropy/rand_entropy.go b/crypto/randentropy/rand_entropy.go
deleted file mode 100644
index 539d3ac89..000000000
--- a/crypto/randentropy/rand_entropy.go
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright 2015 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum library is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-package randentropy
-
-import (
-	crand "crypto/rand"
-	"io"
-)
-
-var Reader io.Reader = &randEntropy{}
-
-type randEntropy struct {
-}
-
-func (*randEntropy) Read(bytes []byte) (n int, err error) {
-	readBytes := GetEntropyCSPRNG(len(bytes))
-	copy(bytes, readBytes)
-	return len(bytes), nil
-}
-
-func GetEntropyCSPRNG(n int) []byte {
-	mainBuff := make([]byte, n)
-	_, err := io.ReadFull(crand.Reader, mainBuff)
-	if err != nil {
-		panic("reading from crypto/rand failed: " + err.Error())
-	}
-	return mainBuff
-}