Imported Upstream version 1.4upstream/1.4

1 files changed, 0 insertions, 47 deletions

diff --git a/src/pkg/crypto/rand/rand_windows.go b/src/pkg/crypto/rand/rand_windows.go
deleted file mode 100644
index 82b39b64a..000000000
--- a/src/pkg/crypto/rand/rand_windows.go
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright 2010 The Go Authors.  All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Windows cryptographically secure pseudorandom number
-// generator.
-
-package rand
-
-import (
-	"os"
-	"sync"
-	"syscall"
-)
-
-// Implemented by using Windows CryptoAPI 2.0.
-
-func init() { Reader = &rngReader{} }
-
-// A rngReader satisfies reads by reading from the Windows CryptGenRandom API.
-type rngReader struct {
-	prov syscall.Handle
-	mu   sync.Mutex
-}
-
-func (r *rngReader) Read(b []byte) (n int, err error) {
-	r.mu.Lock()
-	if r.prov == 0 {
-		const provType = syscall.PROV_RSA_FULL
-		const flags = syscall.CRYPT_VERIFYCONTEXT | syscall.CRYPT_SILENT
-		err := syscall.CryptAcquireContext(&r.prov, nil, nil, provType, flags)
-		if err != nil {
-			r.mu.Unlock()
-			return 0, os.NewSyscallError("CryptAcquireContext", err)
-		}
-	}
-	r.mu.Unlock()
-
-	if len(b) == 0 {
-		return 0, nil
-	}
-	err = syscall.CryptGenRandom(r.prov, uint32(len(b)), &b[0])
-	if err != nil {
-		return 0, os.NewSyscallError("CryptGenRandom", err)
-	}
-	return len(b), nil
-}