Add new operation: Parse Certificate Signing Request (CSR) by jkataja · Pull Request #1504 · gchq/CyberChef

jkataja · 2023-01-22T01:40:21Z

Added new operation Parse CSR under Public Key.
The operation parses a PEM formatted Certificate Signing Request (CSR) for an X.509 certificate and visualize it.
It is limited to RSA public key algorithms only as this is the only one supported for CSR in node-forge as of 1.3.1.

Another PR #381 that implements the same operation has been stale for a while.

Sample input:

Sample output:

Version:          1 (0x00)
Subject
  C = UK
  ST = Greater London
  L = London
  O = Generic Corporation
  OU = Special Products
  CN = www.generic-corporation.co.uk
Subject Alternative Names
  DNS: www.generic-corporation.co.uk
  DNS: api.generic-corporation.co.uk
Public Key
  Algorithm:      RSA
  Length:         2048 bits
  Modulus:        b2:f2:fe:d8:1b:96:f9:e0:3d:9e:38:70:aa:a7:55:ed:
                  35:29:dc:53:73:a0:d5:99:d2:f6:48:d1:b5:34:b3:6c:
                  0d:2e:88:89:d2:62:da:df:d2:e0:98:57:75:e4:74:a4:
                  b9:7b:47:31:39:48:cf:6d:e4:27:0e:19:35:a5:d6:b3:
                  9c:35:b0:70:3b:bd:5a:98:56:c8:0a:1b:ba:c0:65:ee:
                  bc:9e:a1:bf:c2:6b:2e:21:39:85:f8:15:3f:11:d2:1e:
                  86:ec:1e:fc:a7:84:57:b1:6c:20:45:59:99:26:c2:a0:
                  7d:a6:cd:2d:11:f6:ae:39:a5:01:06:7a:e9:d0:fe:67:
                  6d:80:f0:c1:3f:76:04:0d:83:4a:30:38:96:fc:95:28:
                  e9:28:fe:62:1f:39:35:7c:ea:bf:9e:f9:42:8b:d1:9c:
                  fc:b6:3b:b8:b0:15:65:e4:7b:81:04:ae:14:ff:39:bc:
                  95:05:2c:26:b3:87:82:19:95:48:4c:54:9b:d1:a4:d0:
                  7f:35:59:11:70:5e:97:b6:cc:e2:a9:2a:d3:59:bc:d1:
                  1e:02:60:b7:46:90:bf:22:53:0a:11:e2:5e:f8:ef:64:
                  14:59:50:ce:5b:50:5a:16:0f:e2:d9:11:f8:20:ec:c9:
                  fa:d3:a7:aa:6a:58:5b:b2:2a:f4:ff:0d:38:a6:43:c3
  Exponent:       65537 (0x10001)
Signature
  Algorithm:      sha256WithRSAEncryption
  Signature:      05:92:d1:09:e6:79:5c:c2:20:6c:65:ed:d0:dd:54:86:
                  19:84:47:83:01:c3:80:de:fe:c4:73:83:19:ab:e7:18:
                  b1:1f:26:3c:2d:30:25:0c:53:f4:2f:7a:3d:fc:a1:d3:
                  83:0a:26:9b:06:d5:98:65:4f:ae:68:cb:41:c9:fd:f6:
                  a0:c7:8e:55:8c:3d:03:78:0e:14:16:bc:c4:0e:b2:16:
                  38:9c:32:0c:ec:63:04:83:87:bc:56:ce:99:b7:35:65:
                  f8:45:5f:54:ee:05:c1:2d:73:00:af:7d:cd:2a:c8:ec:
                  e9:3d:b5:e1:c3:e7:be:ae:80:11:3d:13:1e:e2:b0:61:
                  66:1d:3a:4c:88:52:b1:d4:b8:92:91:a7:c1:8d:b4:1d:
                  13:f4:bb:e1:6f:eb:10:a7:8c:78:28:2b:f9:21:8b:23:
                  05:86:9f:41:e9:8d:23:59:e7:6a:63:ae:17:47:73:df:
                  19:a0:62:bc:ae:aa:0b:1b:39:08:5d:8c:7a:ac:e8:a9:
                  31:e5:61:69:e4:86:a0:b3:71:1a:0e:ed:20:51:db:ab:
                  74:09:ab:4f:d5:aa:5d:8f:ba:b1:f4:7f:7e:40:e3:72:
                  c8:7b:32:40:f3:10:19:4a:7a:9a:2f:df:1d:05:c8:d1:
                  1a:59:0d:54:03:7b:df:59:f1:72:61:db:0d:e7:f5:bd
Extensions
  basicConstraints CRITICAL:
    CA = false
  keyUsage CRITICAL:
    Digital signature
    Key encipherment
  extKeyUsage:
    TLS Web Server Authentication
  cRLDistributionPoints:
    (unable to format extension)

CLAassistant · 2023-01-22T01:40:26Z

All committers have signed the CLA.

jkataja · 2023-05-10T22:27:26Z

Rebased on 10.4.0

Edit: Following this UI Tests failing with:

>>     An error occurred while creating a new ChromeDriver session: [SessionNotCreatedError] session not created: This version of ChromeDriver only supports Chrome version 110
>> Current browser version is 113.0.[56](https://github.com/gchq/CyberChef/actions/runs/4941870318/jobs/8834894203#step:8:57)72.63 with binary path /usr/bin/google-chrome

jkataja · 2023-10-12T19:43:37Z

Rebased on 6ed9d45

Edit: UI Tests continue to fail with:

>> - Starting ChromeDriver on port 9515...
>> Error
>>      Response 500 POST /session (888ms)
   {
     value: {
       error: 'session not created',
       message: 'session not created: This version of ChromeDriver only supports Chrome version 114\n' +
         'Current browser version is 117.0.5938.132 with binary path /usr/bin/google-chrome',
       stacktrace: ''
     }
  }
>> ⚠ Failed to connect to ChromeDriver on localhost with port 9515.

Issue #1638 prevents merging

pl4nty · 2024-04-01T04:10:39Z

@jkataja any chance you can rebase now that the blocking issue is resolved? the maintainers have been more active recently and this would be a very helpful feature

jkataja · 2024-04-01T21:47:14Z

Rebased on 8a17aba

The checks now pass

@pl4nty thank you for the reminder!

a3957273 · 2024-04-01T23:55:27Z

Code looks good, tested it with a CSR and verified the output contains all the fields I'd expect it to. Could we add a user facing message to show that it only supports RSA at the moment, that'd definitely confuse me (and all the cool kids are using fancy elliptic curves now)!

Although superfluous for now, perhaps an 'option' selection menu with only a single possible value:

            {
                "name": "Key type",
                "type": "option",
                "value": ["RSA"]
            },

jkataja · 2024-04-02T19:34:38Z

perhaps an 'option' selection menu with only a single possible value

I have implemented your suggestion in fda77cf

a3957273 · 2024-04-02T20:17:47Z

Looks fantastic, thanks for taking this on!

jkataja force-pushed the parse-csr branch from 394cf67 to e9581dc Compare January 22, 2023 02:19

jkataja force-pushed the parse-csr branch from aa9e2ff to 56f0355 Compare May 10, 2023 22:26

jkataja force-pushed the parse-csr branch from 56f0355 to bec4a49 Compare May 24, 2023 21:47

jkataja force-pushed the parse-csr branch from bec4a49 to 566a633 Compare June 23, 2023 10:32

jkataja force-pushed the parse-csr branch from 566a633 to 7254bab Compare October 12, 2023 19:40

add Certificate Signing Request (CSR) parse action

c5e5ed2

jkataja force-pushed the parse-csr branch from 7254bab to c5e5ed2 Compare April 1, 2024 20:41

add option to show Parse CSR only supports RSA

fda77cf

a3957273 approved these changes Apr 2, 2024

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a3957273 merged commit ccd3839 into gchq:master Apr 2, 2024

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Add new operation: Parse Certificate Signing Request (CSR)#1504

Add new operation: Parse Certificate Signing Request (CSR)#1504
a3957273 merged 2 commits intogchq:masterfrom
jkataja:parse-csr

jkataja commented Jan 22, 2023 •

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CLAassistant commented Jan 22, 2023 •

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