• Stars
    star
    938
  • Rank 48,718 (Top 1.0 %)
  • Language
    Go
  • License
    Other
  • Created over 2 years ago
  • Updated 14 days ago

Reviews

There are no reviews yet. Be the first to send feedback to the community and the maintainers!

Repository Details

Keyless Git signing using Sigstore

Gitsign

CI E2E

Gitsign logo

Keyless Git signing with Sigstore!

This is heavily inspired by https://github.com/github/smimesign, but uses keyless Sigstore to sign Git commits with your own GitHub / OIDC identity.

Installation

Using Homebrew:

brew install sigstore/tap/gitsign

Using Go:

go install github.com/sigstore/gitsign@latest

Configuration

Single Repository:

cd /path/to/my/repository
git config --local commit.gpgsign true  # Sign all commits
git config --local tag.gpgsign true  # Sign all tags
git config --local gpg.x509.program gitsign  # Use gitsign for signing
git config --local gpg.format x509  # gitsign expects x509 args

All respositories:

git config --global commit.gpgsign true  # Sign all commits
git config --global tag.gpgsign true  # Sign all tags
git config --global gpg.x509.program gitsign  # Use gitsign for signing
git config --global gpg.format x509  # gitsign expects x509 args

To learn more about these options, see git-config.

File config

Gitsign can be configured with a standard git-config file. For example, to set the Fulcio option for a single repo:

$ git config --local gitsign.fulcio https://fulcio.example.com

The following config options are supported:

Option Default Description
fulcio https://fulcio.sigstore.dev Address of Fulcio server
logPath Path to log status output. Helpful for debugging when no TTY is available in the environment.
clientID sigstore OIDC client ID for application
issuer https://oauth2.sigstore.dev/auth OIDC provider to be used to issue ID token
matchCommitter false If true, verify that the committer matches certificate user identity. See docs/committer-verification.md for more details.
redirectURL OIDC Redirect URL
rekor https://rekor.sigstore.dev Address of Rekor server
connectorID Optional Connector ID to auto-select to pre-select auth flow to use. For the public sigstore instance, valid values are:
- https://github.com/login/oauth
- https://accounts.google.com
- https://login.microsoftonline.com
timestampServerURL Address of timestamping authority. If set, a trusted timestamp will be included in the signature.
timestampCertChain Path to PEM encoded certificate chain for RFC3161 Timestamp Authority verification.

Environment Variables

Environment Variable Sigstore
Prefix
Default Description
GITSIGN_CREDENTIAL_CACHE Optional path to gitsign-credential-cache socket.
GITSIGN_CONNECTOR_ID Optional Connector ID to auto-select to pre-select auth flow to use. For the public sigstore instance, valid values are:
- https://github.com/login/oauth
- https://accounts.google.com
- https://login.microsoftonline.com
GITSIGN_FULCIO_URL https://fulcio.sigstore.dev Address of Fulcio server
GITSIGN_LOG Path to log status output. Helpful for debugging when no TTY is available in the environment.
GITSIGN_OIDC_CLIENT_ID sigstore OIDC client ID for application
GITSIGN_OIDC_ISSUER https://oauth2.sigstore.dev/auth OIDC provider to be used to issue ID token
GITSIGN_OIDC_REDIRECT_URL OIDC Redirect URL
GITSIGN_REKOR_URL https://rekor.sigstore.dev Address of Rekor server
GITSIGN_TIMESTAMP_SERVER_URL Address of timestamping authority. If set, a trusted timestamp will be included in the signature.
GITSIGN_TIMESTAMP_CERT_CHAIN Path to PEM encoded certificate chain for RFC3161 Timestamp Authority verification.
GITSIGN_FULCIO_ROOT Path to PEM encoded certificate for Fulcio CA (additional alias: SIGSTORE_ROOT_FILE)
GITSIGN_REKOR_MODE online Rekor storage mode to operate in. One of [online, offline] (default: online)
online - Commit SHAs are stored in Rekor, requiring online verification for all commit objects.
offline - Hashed commit content is stored in Rekor, with Rekor attributes necessary for offline verification being stored in the commit itself.
Note: online verification will be deprecated in favor of offline in the future.

For environment variables that support Sigstore Prefix, the values may be provided with either a GITSIGN_ or SIGSTORE_ prefix - e.g. GITSIGN_CONNECTOR_ID or SIGSTORE_CONNECTOR_ID. If both environment variables are set, GITSIGN_ prefix takes priority.

Other environment variables

Environment Variable Description
SIGSTORE_REKOR_PUBLIC_KEY This specifies an out of band PEM-encoded public key to use for a custom Rekor.

Usage

Signing Commits

Once configured, you can sign commits as usual with git commit -S (or git config --global commit.gpgsign true to enable signing for all commits).

$ git commit --allow-empty --message="Signed commit"
Your browser will now be opened to:
https://oauth2.sigstore.dev/auth/auth?access_type=online&client_id=sigstore&...
[main 040b9af] Signed commit

This will redirect you through the Sigstore Keyless flow to authenticate and sign the commit.

Signing Tags

Once configured, you can sign commits as usual with git tag -s (or git config --global tag.gpgsign true to enable signing for all tags).

$ git tag v0.0.1
Your browser will now be opened to:
https://oauth2.sigstore.dev/auth/auth?access_type=online&client_id=sigstore&...

This will redirect you through the Sigstore Keyless flow to authenticate and sign the tag.

Verifying commits

Commits can be verified using gitsign verify:

$ gitsign verify [email protected] --certificate-oidc-issuer=https://accounts.google.com HEAD
tlog index: 16072348
gitsign: Signature made using certificate ID 0xa6c178d9292f70eb5c4ad9e274ead0158e75e484 | CN=sigstore-intermediate,O=sigstore.dev
gitsign: Good signature from [[email protected]](https://accounts.google.com)
Validated Git signature: true
Validated Rekor entry: true
Validated Certificate claims: true

HEAD may be replaced with any Git revision (e.g. branch, tag, etc.).

NOTE: gitsign verify is preferred over git verify-commit and git verify-tag. The git commands do not pass through any expected identity information to the signing tools, so they only verify cryptographic integrity and that the data exists on Rekor, but not who put the data there.

Using these commands will still work, but a warning being displayed.

$ git verify-commit HEAD
tlog index: 16072349
gitsign: Signature made using certificate ID 0xa6c178d9292f70eb5c4ad9e274ead0158e75e484 | CN=sigstore-intermediate,O=sigstore.dev
gitsign: Good signature from [[email protected]](https://accounts.google.com)
Validated Git signature: true
Validated Rekor entry: true
Validated Certificate claims: false
WARNING: git verify-commit does not verify cert claims. Prefer using `gitsign verify` instead.

Private Sigstore

Gitsign is compatible with other Sigstore tools cosign for running against other Sigstore instances besides the default public instance. See cosign documentation for how to configure and use another instance.

FAQ

Is there any way to bypass the browser flow?

A browser window is needed to get an OAuth token, since gitsign aims to not store refresh tokens or other cryptographic material on disk, but there are some things you can do to make this process a bit easier!

  1. Set the connectorID config option - This preselects the identity provider to use. Assuming you're already signed in, in most cases you'll bounce directly to the auth success screen! (and you can clean up the browser tabs later)
  2. Use the Credential Cache. This uses an in-memory credential cache over a file socket that allows you to persist keys and certificates for their full lifetime (meaning you only need to auth once every 10 minutes).

Why doesn't GitHub show commits as verified?

GitHub doesn't recognize Gitsign signatures as verified at the moment:

  1. The sigstore CA root is not a part of GitHub's trust root.
  2. Because Gitsign's ephemeral keys are only valid for a short time, using standard x509 verification would consider the certificate invalid after expiration. Verification needs to include validation via Rekor to verify the cert was valid at the time it was used.

We hope to work with GitHub to get these types of signatures recognized as verified in the future!

Debugging

Configuration

If gitsign is running with unexpected configs, you can validate the config values that are being ran by running gitsign --version:

$ gitsign --version
gitsign version v0.5.2
parsed config:
{
  "Fulcio": "https://fulcio.sigstore.dev",
  "FulcioRoot": "",
  "Rekor": "https://rekor.sigstore.dev",
  "ClientID": "sigstore",
  "RedirectURL": "",
  "Issuer": "https://oauth2.sigstore.dev/auth",
  "ConnectorID": "",
  "TimestampURL": "",
  "TimestampCert": "",
  "LogPath": ""
}

Signing

If there is an error during signing, you may see an error like:

error: gpg failed to sign the data
fatal: failed to write commit object

When Git invokes signing tools, both stdout and stderr are captured which means gitsign cannot push back messages to shells interactively. If a TTY is available, gitsign will output information to the TTY output directly. If a TTY is not available (e.g. in CI runners, etc.), you can use the GITSIGN_LOG environment variable to tee logs into a readable location for debugging.

Verification

  • failed to verify detached signature: x509: certificate signed by unknown authority

    This usually means the TUF root used to verify the commit is not the same as the root that was used to sign it. This can happen if you use multiple sigstore instances frequently (e.g. if you're a sigstore developer - sigstore staging). You can double check relevant environment variables by running gitsign --version.

Privacy

What data does Gitsign store?

Gitsign stores data in 2 places:

  1. Within the Git commit

    The commit itself contains a signed digest of the user commit content (e.g. author, committer, message, parents, etc.) along with the code signing certificate. This data is stored within the commit itself as part of your repository. See Inspecting the Git commit signature for more details.

  2. Within the Rekor transparency log

    To be able to verify signatures for ephemeral certs past their Not After time, Gitsign records commits and the code signing certificates to Rekor.

    • If rekorMode = online (default)

    This data is a HashedRekord containing a SHA256 hash of the commit SHA, as well as the code signing certificate. See Verifying the Transparency Log for more details.

    • If rekorMode = offline

    Note: offline verification is new, and should be considered experimental for now.

    By default, data is written to the public Rekor instance. In particular, users and organizations may be sensitive to the data contained within code signing certificates returned by Fulcio, which may include user emails or repo identifiers. See OIDC usage in Fulcio for more details for what data is contained in the code signing certs, and Deploy a Rekor Server Manually for how to run your own Rekor instance.

Security

Should you discover any security issues, please refer to the security process

Advanced

Inspecting the Git commit signature

Git commit signatures use CMS/PKCS7 signatures. We can inspect the underlying data / certificate used by running:

$ git cat-file commit HEAD | sed -n '/-BEGIN/, /-END/p' | sed 's/^ //g' | sed 's/gpgsig //g' | sed 's/SIGNED MESSAGE/PKCS7/g' | openssl pkcs7 -print -print_certs -text
PKCS7:
  type: pkcs7-signedData (1.2.840.113549.1.7.2)
  d.sign:
    version: 1
    md_algs:
        algorithm: sha256 (2.16.840.1.101.3.4.2.1)
        parameter: <ABSENT>
    contents:
      type: pkcs7-data (1.2.840.113549.1.7.1)
      d.data: <ABSENT>
    cert:
        cert_info:
          version: 2
          serialNumber: 0x2ECFB7E0D25F9A741FC3B19B56C4B74D25864788
          signature:
            algorithm: ecdsa-with-SHA384 (1.2.840.10045.4.3.3)
            parameter: <ABSENT>
          issuer: O=sigstore.dev, CN=sigstore-intermediate
          validity:
            notBefore: Jan 13 21:00:13 2023 GMT
            notAfter: Jan 13 21:10:13 2023 GMT
          subject:
          key:
            algor:
              algorithm: id-ecPublicKey (1.2.840.10045.2.1)
              parameter: OBJECT:prime256v1 (1.2.840.10045.3.1.7)
            public_key:  (0 unused bits)
              0000 - 04 0d 3e f5 05 98 53 d2-68 21 9d e7 88 07   ..>...S.h!....
              000e - 0a d9 bc 8e 9f e3 00 e0-5d 28 b2 41 24 a7   ........](.A$.
              001c - a5 93 28 cc 45 d9 1e ee-a3 1c 8d 42 64 ab   ..(.E......Bd.
              002a - 14 e6 ec 41 29 77 3a 0e-95 94 33 f7 40 62   ...A)w:...3.@b
              0038 - cd 25 fd 17 35 be 4d d4-f9                  .%..5.M..
          issuerUID: <ABSENT>
          subjectUID: <ABSENT>
          extensions:
              object: X509v3 Key Usage (2.5.29.15)
              critical: TRUE
              value:
                0000 - 03 02 07 80                              ....

              object: X509v3 Extended Key Usage (2.5.29.37)
              critical: BOOL ABSENT
              value:
                0000 - 30 0a 06 08 2b 06 01 05-05 07 03 03      0...+.......

              object: X509v3 Subject Key Identifier (2.5.29.14)
              critical: BOOL ABSENT
              value:
                0000 - 04 14 46 eb 25 b9 3b 3d-87 71 6a eb ba   ..F.%.;=.qj..
                000d - e4 a4 4b b0 f1 17 4b 46-58               ..K...KFX

              object: X509v3 Authority Key Identifier (2.5.29.35)
              critical: BOOL ABSENT
              value:
                0000 - 30 16 80 14 df d3 e9 cf-56 24 11 96 f9   0.......V$...
                000d - a8 d8 e9 28 55 a2 c6 2e-18 64 3f         ...(U....d?

              object: X509v3 Subject Alternative Name (2.5.29.17)
              critical: TRUE
              value:
                0000 - 30 16 81 14 62 69 6c 6c-79 40 63 68 61   0...billy@cha
                000d - 69 6e 67 75 61 72 64 2e-64 65 76         inguard.dev

              object: undefined (1.3.6.1.4.1.57264.1.1)
              critical: BOOL ABSENT
              value:
                0000 - 68 74 74 70 73 3a 2f 2f-61 63 63 6f 75   https://accou
                000d - 6e 74 73 2e 67 6f 6f 67-6c 65 2e 63 6f   nts.google.co
                001a - 6d                                       m

              object: undefined (1.3.6.1.4.1.11129.2.4.2)
              critical: BOOL ABSENT
              value:
                0000 - 04 7b 00 79 00 77 00 dd-3d 30 6a c6 c7   .{.y.w..=0j..
                000d - 11 32 63 19 1e 1c 99 67-37 02 a2 4a 5e   .2c....g7..J^
                001a - b8 de 3c ad ff 87 8a 72-80 2f 29 ee 8e   ..<....r./)..
                0027 - 00 00 01 85 ac ee dc fa-00 00 04 03 00   .............
                0034 - 48 30 46 02 21 00 a1 e2-05 30 53 6f fb   H0F.!....0So.
                0041 - 05 28 b6 bb 41 77 a9 7c-21 f4 a9 49 8b   .(..Aw.|!..I.
                004e - f8 a6 1f 35 85 a7 40 b3-07 5c cb 04 02   ...5..@..\...
                005b - 21 00 f4 39 7b 17 5a 59-fa 10 1c f8 bf   !..9{.ZY.....
                0068 - 46 cd bc de cc e8 39 7a-03 d4 1c 78 e5   F.....9z...x.
                0075 - b1 e7 7a ba 66 79 f2 c8-                 ..z.fy..
        sig_alg:
          algorithm: ecdsa-with-SHA384 (1.2.840.10045.4.3.3)
          parameter: <ABSENT>
        signature:  (0 unused bits)
          0000 - 30 65 02 30 5b 7c d7 ea-7c 5f 68 76 0b da 50   0e.0[|..|_hv..P
          000f - 14 cc bf 4c 65 07 70 68-52 33 9a 85 57 ce f5   ...Le.phR3..W..
          001e - ff 18 5b 8b 08 76 2a dd-7d 1a 19 7f b6 90 be   ..[..v*.}......
          002d - ad 24 96 9a 2a 0a d6 02-31 00 ac 15 2b 1d 00   .$..*...1...+..
          003c - 6e 26 95 66 c9 6d cd 7e-e0 cd 12 0e 60 8b f9   n&.f.m.~....`..
          004b - 38 a9 0a dc 01 28 9a 39-e3 cd c9 eb a5 0c 08   8....(.9.......
          005a - 71 47 39 c8 dc 9d db c3-cf 8e f5 cd e9         qG9..........
    crl:
      <EMPTY>
    signer_info:
        version: 1
        issuer_and_serial:
          issuer: O=sigstore.dev, CN=sigstore-intermediate
          serial: 0x2ECFB7E0D25F9A741FC3B19B56C4B74D25864788
        digest_alg:
          algorithm: sha256 (2.16.840.1.101.3.4.2.1)
          parameter: <ABSENT>
        auth_attr:
            object: contentType (1.2.840.113549.1.9.3)
            value.set:
              OBJECT:pkcs7-data (1.2.840.113549.1.7.1)

            object: signingTime (1.2.840.113549.1.9.5)
            value.set:
              UTCTIME:Jan 13 21:00:13 2023 GMT

            object: messageDigest (1.2.840.113549.1.9.4)
            value.set:
              OCTET STRING:
                0000 - 21 e9 ce 7a 69 ff 22 57-43 a2 fc c9 12   !..zi."WC....
                000d - 8a 67 c6 45 e7 31 88 4c-08 3f 26 9a 13   .g.E.1.L.?&..
                001a - ac 85 d6 6d f5 8e                        ...m..
        digest_enc_alg:
          algorithm: ecdsa-with-SHA256 (1.2.840.10045.4.3.2)
          parameter: <ABSENT>
        enc_digest:
          0000 - 30 46 02 21 00 cc 5a 1e-9a 27 70 ba 1f 70 7d   0F.!..Z..'p..p}
          000f - d6 f0 1c 56 f2 32 b3 d2-8f c4 63 dd 9c 82 cc   ...V.2....c....
          001e - 69 30 2c cd 9e 90 f9 02-21 00 82 43 0a f7 79   i0,.....!..C..y
          002d - 64 41 14 6b 28 03 ac 38-2b a3 82 bd a8 a1 ea   dA.k(..8+......
          003c - 52 db cf f2 5f d4 84 4f-85 b4 53 53            R..._..O..SS
        unauth_attr:
            object: undefined (1.3.6.1.4.1.57264.3.8)
            value.set:
              INTEGER:6954358

            object: undefined (1.3.6.1.4.1.57264.3.9)
            value.set:
              INTEGER:6954357

            object: undefined (1.3.6.1.4.1.57264.3.1)
            value.set:
              INTEGER:1673643613

            object: undefined (1.3.6.1.4.1.57264.3.3)
            value.set:
              INTEGER:11117788

            object: undefined (1.3.6.1.4.1.57264.3.2)
            value.set:
              PRINTABLESTRING:c0d23d6ad406973f9559f3ba2d1ca01f84147d8ffc5b8445c224f98b9591801d

            object: undefined (1.3.6.1.4.1.57264.3.7)
            value.set:
              PRINTABLESTRING:373443ac6ee5e01d4bfa00666f79d5c7cee0380684ebe571fc98bdffea82f972

            object: undefined (1.3.6.1.4.1.57264.3.4)
            value.set:
              OCTET STRING:
                0000 - 30 45 02 20 00 d0 88 ff-91 18 75 1c 90   0E. ......u..
                000d - 4c aa f3 37 94 45 a8 ca-1e a4 de 60 10   L..7.E.....`.
                001a - 0a 22 69 03 c9 2d d2 0e-1a 9f 02 21 00   ."i..-.....!.
                0027 - af cd 78 85 f2 66 5f 22-c5 d3 a2 5c fc   ..x..f_"...\.
                0034 - e2 c1 fe 0c f2 27 aa f0-fa fd 73 ca 5d   .....'....s.]
                0041 - 58 98 9c 00 df 5c                        X....\

            object: undefined (1.3.6.1.4.1.57264.3.5)
            value.set:
              UTF8STRING:rekor.sigstore.dev - 2605736670972794746
6954358
NzRDrG7l4B1L+gBmb3nVx87gOAaE6+Vx/Ji9/+qC+XI=
Timestamp: 1673643613823629328

\U2014 rekor.sigstore.dev wNI9ajBFAiB1IrUY3QV0nXQF0NFuo+1WtTRRYIKhaBI4rUj0Ry3WkwIhAI6D+kvZh+NhJ7Xi4HT0kPVB0nxGjR+cOHFOU1HJbUKF


            object: undefined (1.3.6.1.4.1.57264.3.6)
            value.set:
              SEQUENCE:
    0:d=0  hl=4 l= 858 cons: SEQUENCE
    4:d=1  hl=2 l=  64 prim:  PRINTABLESTRING   :be961775858a32f96c8d12fb8db3c3101bb4d8296f37f53f74dc2cb51c22a9ad
   70:d=1  hl=2 l=  64 prim:  PRINTABLESTRING   :92bd4aedddebab9be5678442a28bcfbada3300e04c0726368796a6d8b32fd909
  136:d=1  hl=2 l=  64 prim:  PRINTABLESTRING   :6e5a335c4b2f89e25d5be75ed0a724b154e0f53367bd4888c625d96f4a1e6b79
  202:d=1  hl=2 l=  64 prim:  PRINTABLESTRING   :67bce8699de01f6fc9ac8865ee5b08ee3a6617b57328b59cc342c55a4067652b
  268:d=1  hl=2 l=  64 prim:  PRINTABLESTRING   :f06fad8a06e8b60133ec7847be1586d517728f2da95f6e81ec9d1e4b1bbfc9d1
  334:d=1  hl=2 l=  64 prim:  PRINTABLESTRING   :32f164dcc4d2ff3b095c4f2d2b4beb25223cffd028a53fae3cac98f70e4bbd83
  400:d=1  hl=2 l=  64 prim:  PRINTABLESTRING   :1c3b03f4eff02f6405ef856350ffd03650d5de5271a65f0cee51ffe4fc6a99af
  466:d=1  hl=2 l=  64 prim:  PRINTABLESTRING   :c73ab44c0792697f44a5e237a47fff42f9c4dbf869071ee08e95dec222917f09
  532:d=1  hl=2 l=  64 prim:  PRINTABLESTRING   :e1e7772b7c20874ea1b3bebb2fd4ec5b496bcf45c338495ddbe93ae1fbcabe2c
  598:d=1  hl=2 l=  64 prim:  PRINTABLESTRING   :5da6951fe16688f8a256fc9adf3ccda1806b811e2bc50caab99ee61ded6ef6a3
  664:d=1  hl=2 l=  64 prim:  PRINTABLESTRING   :e7d67f5102ddeda58eda651dcba76876d01955a4eca9fce4caaf9e0ba7521cdd
  730:d=1  hl=2 l=  64 prim:  PRINTABLESTRING   :616429db6c7d20c5b0eff1a6e512ea57a0734b94ae0bc7c914679463e01a7fba
  796:d=1  hl=2 l=  64 prim:  PRINTABLESTRING   :5a4ad1534b1e770f02bfde0de15008a6971cf1ffbfa963fc9c2a644973a8d2d1
-----BEGIN PKCS7-----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-----END PKCS7-----

More Repositories

1

cosign

Code signing and transparency for containers and binaries
Go
4,300
star
2

rekor

Software Supply Chain Transparency Log
Go
864
star
3

fulcio

Sigstore OIDC PKI
Go
629
star
4

sigstore

Common go library shared across sigstore services and clients
Go
441
star
5

sigstore-python

A Sigstore client written in Python
Python
227
star
6

sigstore-rs

An experimental Rust crate for sigstore
Rust
162
star
7

sigstore-js

Code-signing for npm packages
TypeScript
156
star
8

policy-controller

Sigstore Policy Controller - an admission controller that can be used to enforce policy on a Kubernetes cluster based on verifiable supply-chain metadata from cosign
Go
123
star
9

cosign-installer

Cosign Github Action
114
star
10

model-transparency

Supply chain security for ML
Python
105
star
11

root-signing

TUF repository for Sigstore trust root
Go
81
star
12

k8s-manifest-sigstore

kubectl plugin for signing Kubernetes manifest YAML files with sigstore
Go
78
star
13

cosign-gatekeeper-provider

🔮 ✈️ to integrate OPA Gatekeeper's new ExternalData feature with cosign to determine whether the images are valid by verifying their signatures
Go
76
star
14

docs

Sigstore documentation
HTML
73
star
15

helm-charts

Helm charts for sigstore project
Smarty
62
star
16

helm-sigstore

Plugin for Helm to integrate the sigstore ecosystem
Go
59
star
17

timestamp-authority

RFC3161 Timestamp Authority
Go
58
star
18

scaffolding

Stuff to make standing up sigstore (esp. for testing) easier for e2e/integration testing.
HCL
57
star
19

gh-action-sigstore-python

A GitHub Action for sigstore-python
Python
46
star
20

sigstore-go

Go library for Sigstore signing and verification
Go
39
star
21

community

General sigstore community repo
38
star
22

sigstore-java

java clients for sigstore
Java
37
star
23

friends

Sigstore user stories
29
star
24

sigstore-website

Codebase for sigstore.dev
Vue
27
star
25

rekor-search-ui

Search Rekor for entries
TypeScript
26
star
26

rekor-monitor

Log monitor for Rekor to verify immutability and monitor entries
Go
24
star
27

protobuf-specs

Protocol Buffer specifications
Rust
22
star
28

sget

Go
21
star
29

rekor-operator

K8S Operator for Rekor
Go
20
star
30

sigstore-maven-plugin

sigstore maven plugin
Java
18
star
31

sget-rs

sget is a keyless safe script retrieval and execution tool
Rust
18
star
32

sigstore-go-archived

Go library for Sigstore signing and verification
Go
16
star
33

rekor-server

Cryptographic, immutable, append only software release ledger.
Go
11
star
34

rekorctl

Rekor swiss army knife
Go
9
star
35

ruby-sigstore

Rubygems sigstore signing plugin
Ruby
9
star
36

sigstore-git-verifier

A Github Action to verify that new commits are present in the sigstore transparency log.
Shell
8
star
37

sigstore-maven

sigstore maven plugin
Java
8
star
38

TSC

sigstore Technical Steering Committee
7
star
39

sigstore-conformance

Conformance testing for Sigstore clients
Python
7
star
40

sigstore.github.io

Rekor website
Sass
7
star
41

homebrew-tap

Sigstore Homebrew Tap
Ruby
6
star
42

examples

Repository to store various monitors for upstream release sites
Python
6
star
43

sigstore-blog

Codebase for sigstore.dev
CSS
6
star
44

sigstore-project-template

cookiecutter template for sigstore projects
5
star
45

github-sync

Pulumi GitHub Sync for sigstore
Go
5
star
46

sig-clients

Home of the clients SIG
5
star
47

sigstore-helm-operator

Helm based operator for the sigstore project
Smarty
4
star
48

sigstore-probers

Probers for sigstore infrastructure
Go
4
star
49

.github

Default community health files for the Sigstore organization.
4
star
50

sigstore-devops-tools

Tools & services used to help in the development flow of sigstore
Go
4
star
51

sigstore-ruby

Pure-ruby implementation of sigstore verification
Ruby
4
star
52

root-signing-staging

Staging TUF repository for Sigstore trust root
3
star
53

root-signing-practice

Root TUF Key Signing
Go
3
star
54

rekor-ansible

Ansible role to deploy the Rekor signature transparency log
2
star
55

sigstore-installer

1
star
56

fish-food

Lua
1
star
57

sig-public-good-operations

Home of the public good operations SIG
1
star