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math/rand: warn against using package for security-sensitive work

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Urge users of math/rand to consider using crypto/rand when doing
security-sensitive work.

Related to issue #11871. While we haven't reached consensus on how
to make the package inherently safer, everyone agrees that the docs
for math/rand can be improved.

Change-Id: I576a312e51b2a3445691da6b277c7b4717173197
Reviewed-on: https://go-review.googlesource.com/12900
Reviewed-by: Rob Pike <r@golang.org>
This commit is contained in:
Andrey Petrov 2015-07-30 11:47:01 +02:00 committed by Rob Pike
parent b7205b92c0
commit 7cabaded51
1 changed files with 3 additions and 0 deletions
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3
src/math/rand/rand.go
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@ -9,6 +9,9 @@
// sequence of values each time a program is run. Use the Seed function to
// initialize the default Source if different behavior is required for each run.
// The default Source is safe for concurrent use by multiple goroutines.
//
// For random numbers suitable for security-sensitive work, see the crypto/rand
// package.
package rand
import "sync"