[ruby-core:64021] [ruby-trunk - Bug #10093] [Open] SecureRandom.uuid is unstable

[ruby-core:64021] [ruby-trunk - Bug #10093] [Open] SecureRandom.uuid is unstable

[thanhman.gm]

Issue #10093 has been reported by Man Vuong.

----------------------------------------
Bug #10093: SecureRandom.uuid is unstable
https://bugs.ruby-lang.org/issues/10093

* Author: Man Vuong
* Status: Open
* Priority: Normal
* Assignee: 
* Category: lib
* Target version: current: 2.2.0
* ruby -v: ruby 2.1.2p95 (2014-05-08 revision 45877) [x86_64-darwin13.0]
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN
----------------------------------------
SecureRandom.uuid sometimes generates some value like this:
e7be09bb-e939-43db-9c20-dfad9c27fd3g

And it's not a valid UUID. This problem occurred randomly for me, I don't know how to reproduce :(



-- 
https://bugs.ruby-lang.org/

[ruby-core:64025] [ruby-trunk - Bug #10093] SecureRandom.uuid is unstable

[akr]

Issue #10093 has been updated by Akira Tanaka.


Why is it not a valid UUID?

----------------------------------------
Bug #10093: SecureRandom.uuid is unstable
https://bugs.ruby-lang.org/issues/10093#change-48038

* Author: Man Vuong
* Status: Open
* Priority: Normal
* Assignee: 
* Category: lib
* Target version: current: 2.2.0
* ruby -v: ruby 2.1.2p95 (2014-05-08 revision 45877) [x86_64-darwin13.0]
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN
----------------------------------------
SecureRandom.uuid sometimes generates some value like this:
e7be09bb-e939-43db-9c20-dfad9c27fd3g

And it's not a valid UUID. This problem occurred randomly for me, I don't know how to reproduce :(



-- 
https://bugs.ruby-lang.org/

[ruby-core:64036] [ruby-trunk - Bug #10093] SecureRandom.uuid is unstable

[nobu]

Issue #10093 has been updated by Nobuyoshi Nakada.


'g' at the end?

----------------------------------------
Bug #10093: SecureRandom.uuid is unstable
https://bugs.ruby-lang.org/issues/10093#change-48049

* Author: Man Vuong
* Status: Open
* Priority: Normal
* Assignee: 
* Category: lib
* Target version: current: 2.2.0
* ruby -v: ruby 2.1.2p95 (2014-05-08 revision 45877) [x86_64-darwin13.0]
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN
----------------------------------------
SecureRandom.uuid sometimes generates some value like this:
e7be09bb-e939-43db-9c20-dfad9c27fd3g

And it's not a valid UUID. This problem occurred randomly for me, I don't know how to reproduce :(



-- 
https://bugs.ruby-lang.org/

[ruby-core:64073] [ruby-trunk - Bug #10093] SecureRandom.uuid is unstable

[thanhman.gm]

Issue #10093 has been updated by Man Vuong.


Ya, it seems that all wrong UUID are ended with 'g', here is another one:
0e6cf5ef-0afd-4854-8130-ac6144ddd70g



----------------------------------------
Bug #10093: SecureRandom.uuid is unstable
https://bugs.ruby-lang.org/issues/10093#change-48083

* Author: Man Vuong
* Status: Open
* Priority: Normal
* Assignee: 
* Category: lib
* Target version: current: 2.2.0
* ruby -v: ruby 2.1.2p95 (2014-05-08 revision 45877) [x86_64-darwin13.0]
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN
----------------------------------------
SecureRandom.uuid sometimes generates some value like this:
e7be09bb-e939-43db-9c20-dfad9c27fd3g

And it's not a valid UUID. This problem occurred randomly for me, I don't know how to reproduce :(



-- 
https://bugs.ruby-lang.org/

[ruby-core:64074] [ruby-trunk - Bug #10093] SecureRandom.uuid is unstable

[thanhman.gm]

Issue #10093 has been updated by Man Vuong.


Valid UUID should match `/[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}/i`

----------------------------------------
Bug #10093: SecureRandom.uuid is unstable
https://bugs.ruby-lang.org/issues/10093#change-48084

* Author: Man Vuong
* Status: Open
* Priority: Normal
* Assignee: 
* Category: lib
* Target version: current: 2.2.0
* ruby -v: ruby 2.1.2p95 (2014-05-08 revision 45877) [x86_64-darwin13.0]
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN
----------------------------------------
SecureRandom.uuid sometimes generates some value like this:
e7be09bb-e939-43db-9c20-dfad9c27fd3g

And it's not a valid UUID. This problem occurred randomly for me, I don't know how to reproduce :(



-- 
https://bugs.ruby-lang.org/

[ruby-core:64231] [ruby-trunk - Bug #10093] [Feedback] SecureRandom.uuid is unstable

[akr]

Issue #10093 has been updated by Akira Tanaka.

Status changed from Open to Feedback

I see.  "g" is not a valid character for UUID.

However I couldn't reproduce the problem.

I run following script but no problem happened in several days.

```
% ruby -v -rsecurerandom -e '
STDOUT.sync = true
while true
  uuid = SecureRandom.uuid
  if /\A[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}\z/ !~ uuid
    p uuid
  end
end'
ruby 2.2.0dev (2014-06-11 trunk 46400) [x86_64-linux]
```

Can anyone reproduce the problem?

Anyway, the method uses String#% as follows.

```
"%08x-%04x-%04x-%04x-%04x%08x" % ary
```

So "g" should not be produced unless String#% has a problem.

----------------------------------------
Bug #10093: SecureRandom.uuid is unstable
https://bugs.ruby-lang.org/issues/10093#change-48223

* Author: Man Vuong
* Status: Feedback
* Priority: Normal
* Assignee: 
* Category: lib
* Target version: current: 2.2.0
* ruby -v: ruby 2.1.2p95 (2014-05-08 revision 45877) [x86_64-darwin13.0]
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN
----------------------------------------
SecureRandom.uuid sometimes generates some value like this:
e7be09bb-e939-43db-9c20-dfad9c27fd3g

And it's not a valid UUID. This problem occurred randomly for me, I don't know how to reproduce :(



-- 
https://bugs.ruby-lang.org/

[ruby-core:64233] [ruby-trunk - Bug #10093] SecureRandom.uuid is unstable

[nobu]

Issue #10093 has been updated by Nobuyoshi Nakada.


I suspect it might be generated by `String#succ`.

----------------------------------------
Bug #10093: SecureRandom.uuid is unstable
https://bugs.ruby-lang.org/issues/10093#change-48224

* Author: Man Vuong
* Status: Feedback
* Priority: Normal
* Assignee: 
* Category: lib
* Target version: current: 2.2.0
* ruby -v: ruby 2.1.2p95 (2014-05-08 revision 45877) [x86_64-darwin13.0]
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN
----------------------------------------
SecureRandom.uuid sometimes generates some value like this:
e7be09bb-e939-43db-9c20-dfad9c27fd3g

And it's not a valid UUID. This problem occurred randomly for me, I don't know how to reproduce :(



-- 
https://bugs.ruby-lang.org/

[ruby-core:64246] [ruby-trunk - Bug #10093] SecureRandom.uuid is unstable

[thanhman.gm]

Issue #10093 has been updated by Man Vuong.


hmm, it could be the problem, let me try to figure out.

----------------------------------------
Bug #10093: SecureRandom.uuid is unstable
https://bugs.ruby-lang.org/issues/10093#change-48235

* Author: Man Vuong
* Status: Feedback
* Priority: Normal
* Assignee: 
* Category: lib
* Target version: current: 2.2.0
* ruby -v: ruby 2.1.2p95 (2014-05-08 revision 45877) [x86_64-darwin13.0]
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN
----------------------------------------
SecureRandom.uuid sometimes generates some value like this:
e7be09bb-e939-43db-9c20-dfad9c27fd3g

And it's not a valid UUID. This problem occurred randomly for me, I don't know how to reproduce :(



-- 
https://bugs.ruby-lang.org/

[ruby-core:64247] [ruby-trunk - Bug #10093] SecureRandom.uuid is unstable

[thanhman.gm]

Issue #10093 has been updated by Man Vuong.


I just found out the problem, the root cause is because a bug in one of gems I'm using which it does something like this:

```
"e7be09bb-e939-43db-9c20-dfad9c27fd3f".next
```

And in result is the invalid UUID with `g`.

I confirmed this is not related to SecureRandom.uuid.
My bad, I'm very sorry.
Thank you for your time and concern on my inappropriate ticket :P

----------------------------------------
Bug #10093: SecureRandom.uuid is unstable
https://bugs.ruby-lang.org/issues/10093#change-48236

* Author: Man Vuong
* Status: Feedback
* Priority: Normal
* Assignee: 
* Category: lib
* Target version: current: 2.2.0
* ruby -v: ruby 2.1.2p95 (2014-05-08 revision 45877) [x86_64-darwin13.0]
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN
----------------------------------------
SecureRandom.uuid sometimes generates some value like this:
e7be09bb-e939-43db-9c20-dfad9c27fd3g

And it's not a valid UUID. This problem occurred randomly for me, I don't know how to reproduce :(



-- 
https://bugs.ruby-lang.org/

[ruby-core:64248] [ruby-trunk - Bug #10093] SecureRandom.uuid is unstable

[thanhman.gm]

Issue #10093 has been updated by Man Vuong.


This ticket should be closed.

----------------------------------------
Bug #10093: SecureRandom.uuid is unstable
https://bugs.ruby-lang.org/issues/10093#change-48237

* Author: Man Vuong
* Status: Feedback
* Priority: Normal
* Assignee: 
* Category: lib
* Target version: current: 2.2.0
* ruby -v: ruby 2.1.2p95 (2014-05-08 revision 45877) [x86_64-darwin13.0]
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN
----------------------------------------
SecureRandom.uuid sometimes generates some value like this:
e7be09bb-e939-43db-9c20-dfad9c27fd3g

And it's not a valid UUID. This problem occurred randomly for me, I don't know how to reproduce :(



-- 
https://bugs.ruby-lang.org/

[ruby-core:64249] [ruby-trunk - Bug #10093] [Third Party's Issue] SecureRandom.uuid is unstable

[nobu]

Issue #10093 has been updated by Nobuyoshi Nakada.

Status changed from Feedback to Third Party's Issue

----------------------------------------
Bug #10093: SecureRandom.uuid is unstable
https://bugs.ruby-lang.org/issues/10093#change-48238

* Author: Man Vuong
* Status: Third Party's Issue
* Priority: Normal
* Assignee: 
* Category: lib
* Target version: current: 2.2.0
* ruby -v: ruby 2.1.2p95 (2014-05-08 revision 45877) [x86_64-darwin13.0]
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN
----------------------------------------
SecureRandom.uuid sometimes generates some value like this:
e7be09bb-e939-43db-9c20-dfad9c27fd3g

And it's not a valid UUID. This problem occurred randomly for me, I don't know how to reproduce :(



-- 
https://bugs.ruby-lang.org/

[ruby-core:81392] [Ruby trunk Bug#10093] SecureRandom.uuid is not valid v4 or RFC 4122

[im]

Issue #10093 has been updated by kulikov-im (Evgeniy Kulikov).

Subject changed from SecureRandom.uuid is unstable to SecureRandom.uuid is not valid v4 or RFC 4122
ruby -v changed from ruby 2.1.2p95 (2014-05-08 revision 45877) [x86_64-darwin13.0] to ruby 2.4.1p111 (2017-03-22 revision 58053) [x86_64-darwin16]

https://www.ietf.org/rfc/rfc4122.txt (#4.4)
---

current test is https://github.com/ruby/ruby/blob/ruby_2_4/test/test_securerandom.rb#L174

```ruby
def test_uuid
  uuid = @it.uuid
  assert_equal(36, uuid.size)
  assert_match(/\A\h{8}-\h{4}-\h{4}-\h{4}-\h{12}\z/, uuid)
end
```

thats not valid

Here Golang example of test-case - https://github.com/satori/go.uuid/blob/master/uuid_test.go#L589

must check:

- UUID Version

```ruby
uuid.bytes[6] >> 4 == 4
```

- RFC4122

```ruby
(uuid.bytes[8] & 0xc0) | 0x80 == 0x80
```

valid test-case is:

```ruby
def test_uuid
  uuid = @it.uuid

  assert_equal(36, uuid.size)

  # Check UUID Version:
  assert_equal(uuid.bytes[6] >> 4, 4)

  # Check RFC4122
  assert_equal((uuid[8] & 0xc0) | 0x80, 0x80)

  assert_match(/\A\h{8}-\h{4}-\h{4}-\h{4}-\h{12}\z/, uuid)
end
```

----------------------------------------
Bug #10093: SecureRandom.uuid is not valid v4 or RFC 4122
https://bugs.ruby-lang.org/issues/10093#change-65105

* Author: kidlab (Man Vuong)
* Status: Third Party's Issue
* Priority: Normal
* Assignee: 
* Target version: 2.2.0
* ruby -v: ruby 2.4.1p111 (2017-03-22 revision 58053) [x86_64-darwin16]
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN
----------------------------------------
SecureRandom.uuid sometimes generates some value like this:
e7be09bb-e939-43db-9c20-dfad9c27fd3g

And it's not a valid UUID. This problem occurred randomly for me, I don't know how to reproduce :(



-- 
https://bugs.ruby-lang.org/

[ruby-core:81393] [Ruby trunk Bug#10093] SecureRandom.uuid is not valid v4 and/or RFC 4122

[usa]

Issue #10093 has been updated by usa (Usaku NAKAMURA).


Please do not reuse past tickets.

----------------------------------------
Bug #10093: SecureRandom.uuid is not valid v4 and/or RFC 4122
https://bugs.ruby-lang.org/issues/10093#change-65107

* Author: kidlab (Man Vuong)
* Status: Third Party's Issue
* Priority: Normal
* Assignee: 
* Target version: 2.2.0
* ruby -v: ruby 2.4.1p111 (2017-03-22 revision 58053) [x86_64-darwin16]
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN
----------------------------------------
SecureRandom.uuid sometimes generates some value like this:
e7be09bb-e939-43db-9c20-dfad9c27fd3g

And it's not a valid UUID. This problem occurred randomly for me, I don't know how to reproduce :(



-- 
https://bugs.ruby-lang.org/

[ruby-core:81402] [Ruby trunk Bug#10093] SecureRandom.uuid is not valid v4 and/or RFC 4122

[im]

Issue #10093 has been updated by kulikov-im (Evgeniy Kulikov).


usa (Usaku NAKAMURA) wrote:
> Please do not reuse past tickets.

Open new issue https://bugs.ruby-lang.org/issues/13603

----------------------------------------
Bug #10093: SecureRandom.uuid is not valid v4 and/or RFC 4122
https://bugs.ruby-lang.org/issues/10093#change-65111

* Author: kidlab (Man Vuong)
* Status: Third Party's Issue
* Priority: Normal
* Assignee: 
* Target version: 2.2.0
* ruby -v: ruby 2.4.1p111 (2017-03-22 revision 58053) [x86_64-darwin16]
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN
----------------------------------------
SecureRandom.uuid sometimes generates some value like this:
e7be09bb-e939-43db-9c20-dfad9c27fd3g

And it's not a valid UUID. This problem occurred randomly for me, I don't know how to reproduce :(



-- 
https://bugs.ruby-lang.org/