Merge pull request #190 from pjbgf/revert-170-no-auto-reg

Revert "Remove `crypto.RegisterHash` call"

Author: pjbgf

cgo/sha1.go

@@ -5,6 +5,7 @@ package cgo
 import "C"
 
 import (
+	"crypto"
 	"hash"
 	"unsafe"
 )
@@ -14,6 +15,10 @@ const (
 	BlockSize = 64
 )
 
+func init() {
+	crypto.RegisterHash(crypto.SHA1, New)
+}
+
 func New() hash.Hash {
 	d := new(digest)
 	d.Reset()

sha1cd.go

@@ -12,6 +12,7 @@ package sha1cd
 // Original: https://github.com/golang/go/blob/master/src/crypto/sha1/sha1.go
 
 import (
+	"crypto"
 	"encoding/binary"
 	"errors"
 	"hash"
@@ -21,6 +22,10 @@ import (
 
 //go:generate go run -C asm . -out ../sha1cdblock_amd64.s -pkg $GOPACKAGE
 
+func init() {
+	crypto.RegisterHash(crypto.SHA1, New)
+}
+
 // The size of a SHA-1 checksum in bytes.
 const Size = shared.Size