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use cryptographically secure rng seed

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Signed-off-by: Adam Crowder <adam@adamcrowder.net>
This commit is contained in:
Adam Crowder 2020-05-11 18:57:04 -07:00
parent 5e7e3a1b39
commit 0a6b5817a9
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GPG key ID: CA63AD7FC16C6CC0
1 changed files with 7 additions and 1 deletions
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8
server/server.go
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@ -28,6 +28,8 @@ import (
"errors" "errors"
gorillaHandlers "github.com/gorilla/handlers" gorillaHandlers "github.com/gorilla/handlers"
"log" "log"
crypto_rand "crypto/rand"
"encoding/binary"
"math/rand" "math/rand"
"mime" "mime"
"net/http" "net/http"
@ -306,7 +308,11 @@ func New(options ...OptionFn) (*Server, error) {
} }
func init() { func init() {
rand.Seed(time.Now().UTC().UnixNano()) var seedBytes [8]byte
if _, err := crypto_rand.Read(seedBytes[:]); err != nil {
panic("cannot obtain cryptographically secure seed")
}
rand.Seed(int64(binary.LittleEndian.Uint64(seedBytes[:])))
} }
func (s *Server) Run() { func (s *Server) Run() {