1 files changed, 21 insertions, 0 deletions
diff --git a/src/crypto/rand/rand.go b/src/crypto/rand/rand.go
new file mode 100644
index 000000000..4da3adb70
--- /dev/null
+++ b/src/crypto/rand/rand.go
@@ -0,0 +1,21 @@
+// 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.
+
+// Package rand implements a cryptographically secure
+// pseudorandom number generator.
+package rand
+
+import "io"
+
+// Reader is a global, shared instance of a cryptographically
+// strong pseudo-random generator.
+// On Unix-like systems, Reader reads from /dev/urandom.
+// On Windows systems, Reader uses the CryptGenRandom API.
+var Reader io.Reader
+
+// Read is a helper function that calls Reader.Read using io.ReadFull.
+// On return, n == len(b) if and only if err == nil.
+func Read(b []byte) (n int, err error) {
+	return io.ReadFull(Reader, b)
+}