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Ayke van Laethem
d94f42f6e2
This package provides access to an operating system resource
(cryptographic numbers) and so needs to be replaced with a TinyGo
version that does this in a different way.
I've made the following choices while adding this feature:
- I'm using the getentropy call whenever possible (most POSIX like
systems), because it is easier to use and more reliable. Linux is
the exception: it only added getentropy relatively recently.
- I've left bare-metal implementations to a future patch. This because
it's hard to reliably get cryptographically secure random numbers on
embedded devices: most devices do not have a hardware PRNG for this
purpose.
20 lines
586 B
Go
20 lines
586 B
Go
// Copyright 2010 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Package rand implements a cryptographically secure
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// random number generator.
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package rand
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import "io"
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// Reader is a global, shared instance of a cryptographically
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// secure random number generator.
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var Reader io.Reader
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// Read is a helper function that calls Reader.Read using io.ReadFull.
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// On return, n == len(b) if and only if err == nil.
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func Read(b []byte) (n int, err error) {
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return io.ReadFull(Reader, b)
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}
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