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Add Sigstore OIDs#18
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Diffs generated by `google/go-cmp` provide more information in case there's a difference between the output generated by the package vs. what's in the known good test files.
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maraino
approved these changes
Sep 30, 2022
| buf.WriteString(fmt.Sprintf("%16s%s\n", "", string(ext.Value))) | ||
| case ext.Id.Equal(oidSigstoreGithubWorkflowSha): | ||
| printExtensionHeader("Sigstore GitHub Workflow SHA Hash", ext, &buf) | ||
| buf.WriteString(fmt.Sprintf("%16s%s\n", "", string(ext.Value))) |
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The string representation of the ext.Value bytes is the git commit hash. Here's the output for a more recent certificate:
Tagged release https://github.com/symfony-cli/symfony-cli/releases/tag/v5.4.14, pointing to git commit symfony-cli/symfony-cli@550b40f.
For the certificate: https://github.com/symfony-cli/symfony-cli/releases/download/v5.4.14/symfony-cli-5.4.14.aarch64.rpm.pem (after base64 decoding the contents of the pem file; apparently the certificate gets base64 encoded):
Certificate:
Data:
Version: 3 (0x2)
Serial Number: 231541021813795677369205938004025370801348566093 (0x288ea893d078ba2cae17dc7e0ad2fd59eadc5c4d)
Signature Algorithm: ECDSA-SHA384
Issuer: O=sigstore.dev,CN=sigstore-intermediate
Validity
Not Before: Sep 30 07:36:13 2022 UTC
Not After : Sep 30 07:46:13 2022 UTC
Subject:
Subject Public Key Info:
Public Key Algorithm: ECDSA
Public-Key: (256 bit)
X:
d3:f3:6f:48:d5:bf:a0:f7:ca:4c:ad:46:23:18:d0:
a3:4c:bd:fd:85:f9:7e:98:fe:63:75:5f:63:dd:bb:
66:d4
Y:
4a:ec:8e:2b:da:14:d5:6a:df:64:37:d9:24:40:f1:
b7:d7:22:af:11:63:7a:84:f0:20:5b:e6:52:8c:01:
57:a4
Curve: P-256
X509v3 extensions:
X509v3 Key Usage: critical
Digital Signature
X509v3 Extended Key Usage:
Code Signing
X509v3 Subject Key Identifier:
07:C3:27:DD:E1:41:B3:FC:04:A5:BA:36:22:47:27:D1:5F:63:A0:F9
X509v3 Authority Key Identifier:
keyid:DF:D3:E9:CF:56:24:11:96:F9:A8:D8:E9:28:55:A2:C6:2E:18:64:3F
X509v3 Subject Alternative Name: critical
URI:https://github.com/symfony-cli/symfony-cli/.github/workflows/releaser.yml@refs/tags/v5.4.14
Sigstore OIDC Issuer:
https://token.actions.githubusercontent.com
Sigstore GitHub Workflow Trigger:
push
Sigstore GitHub Workflow SHA Hash:
550b40f4fb799e5ea3eef8598ad5e9a212e7f2d8
Sigstore GitHub Workflow Name:
Release
Sigstore GitHub Workflow Repository:
symfony-cli/symfony-cli
Sigstore GitHub Workflow Ref:
refs/tags/v5.4.14
RFC6962 Certificate Transparency SCT:
SCT [0]:
Version: V1 (0x0)
LogID: CGCS8ChS/2hF0dFrJ4ScRWcYrBY9wzjSbea8IgY2b3I=
Timestamp: Sep 30 07:36:13.078 2022 UTC
Signature Algorithm: SHA256-ECDSA
30:44:02:20:77:1e:79:98:b8:66:75:bb:3d:39:f3:76:c5:0d:
fb:9b:67:2e:58:dc:8e:4b:a8:02:76:e8:e2:9a:59:bd:26:37:
02:20:36:16:b4:24:e4:0b:47:5c:25:3f:b9:9e:56:8e:4d:be:
65:78:e9:ed:04:07:bf:5d:dd:11:95:f1:46:ec:a5:2e
Signature Algorithm: ECDSA-SHA384
30:64:02:30:74:20:df:22:fd:63:26:38:ae:19:b5:fd:34:83:
97:ad:69:8c:04:37:6d:5f:15:f6:b5:98:62:11:32:49:50:d5:
17:05:a9:82:e7:6a:72:59:0a:7f:83:f5:9c:0e:f7:46:02:30:
79:7a:6f:46:32:8e:5c:b4:c3:31:a3:ba:ca:10:56:82:2d:0b:
6e:f9:8f:e7:cb:25:c7:d6:4a:c2:8d:49:0c:7e:00:63:e5:b8:
8f:1e:34:5f:6f:b1:da:7c:e6:18:8d:56
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This PR adds support for printing the Sigstore OIDs as described here: https://github.com/sigstore/fulcio/blob/main/docs/oid-info.md
Example output using
step certificate inspectwith a certificate obtained from a GitHub Action run:Example with a Fulcio Identity (OtherName) SAN that was recently added in sigstore/fulcio#802: