From c533991519816313dfaa0ddcec183756a97b9348 Mon Sep 17 00:00:00 2001 From: mainboarder Date: Mon, 28 Aug 2023 02:53:16 +0200 Subject: [PATCH] Expanded minimum RSA Keylength to 3072 (#26604) German Federal Office for Information Security requests in its technical guideline BSI TR-02102-1 RSA Keylength not shorter than 3000bits starting 2024, in the year 2023 3000bits as a recommendation. Gitea should request longer RSA Keys by default in favor of security and drop old clients which do not support longer keys. https://www.bsi.bund.de/SharedDocs/Downloads/DE/BSI/Publikationen/TechnischeRichtlinien/TR02102/BSI-TR-02102.pdf?__blob=publicationFile&v=9 - Page 19, Table 1.2 --------- Co-authored-by: wxiaoguang --- cmd/cert.go | 2 +- custom/conf/app.example.ini | 2 +- docker/root/etc/s6/openssh/setup | 2 +- docs/content/administration/command-line.en-us.md | 2 +- docs/content/administration/command-line.zh-cn.md | 2 +- docs/content/administration/config-cheat-sheet.en-us.md | 2 +- docs/content/administration/config-cheat-sheet.zh-cn.md | 2 +- modules/activitypub/user_settings.go | 2 +- modules/setting/ssh.go | 2 +- tests/integration/api_httpsig_test.go | 3 +++ 10 files changed, 12 insertions(+), 9 deletions(-) diff --git a/cmd/cert.go b/cmd/cert.go index 9ae5ed06ce8..38241d71a33 100644 --- a/cmd/cert.go +++ b/cmd/cert.go @@ -43,7 +43,7 @@ Outputs to 'cert.pem' and 'key.pem' and will overwrite existing files.`, }, &cli.IntFlag{ Name: "rsa-bits", - Value: 2048, + Value: 3072, Usage: "Size of RSA key to generate. Ignored if --ecdsa-curve is set", }, &cli.StringFlag{ diff --git a/custom/conf/app.example.ini b/custom/conf/app.example.ini index a3d24b1961f..96a0a3ede93 100644 --- a/custom/conf/app.example.ini +++ b/custom/conf/app.example.ini @@ -1339,7 +1339,7 @@ LEVEL = Info ;; Define allowed algorithms and their minimum key length (use -1 to disable a type) ;ED25519 = 256 ;ECDSA = 256 -;RSA = 2047 ; we allow 2047 here because an otherwise valid 2048 bit RSA key can be reported as having 2047 bit length +;RSA = 3071 ; we allow 3071 here because an otherwise valid 3072 bit RSA key can be reported as having 3071 bit length ;DSA = -1 ; set to 1024 to switch on ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; diff --git a/docker/root/etc/s6/openssh/setup b/docker/root/etc/s6/openssh/setup index f43544d6552..dbb3bafd352 100755 --- a/docker/root/etc/s6/openssh/setup +++ b/docker/root/etc/s6/openssh/setup @@ -11,7 +11,7 @@ fi if [ ! -f /data/ssh/ssh_host_rsa_key ]; then echo "Generating /data/ssh/ssh_host_rsa_key..." - ssh-keygen -t rsa -b 2048 -f /data/ssh/ssh_host_rsa_key -N "" > /dev/null + ssh-keygen -t rsa -b 3072 -f /data/ssh/ssh_host_rsa_key -N "" > /dev/null fi if [ ! -f /data/ssh/ssh_host_ecdsa_key ]; then diff --git a/docs/content/administration/command-line.en-us.md b/docs/content/administration/command-line.en-us.md index 91c6c1e6262..05caff90e43 100644 --- a/docs/content/administration/command-line.en-us.md +++ b/docs/content/administration/command-line.en-us.md @@ -313,7 +313,7 @@ directory and will overwrite any existing files. - `--ecdsa-curve value`: ECDSA curve to use to generate a key. Optional. Valid options are P224, P256, P384, P521. - `--rsa-bits value`: Size of RSA key to generate. Optional. Ignored if --ecdsa-curve is - set. (default: 2048). + set. (default: 3072). - `--start-date value`: Creation date. Optional. (format: `Jan 1 15:04:05 2011`). - `--duration value`: Duration which the certificate is valid for. Optional. (default: 8760h0m0s) - `--ca`: If provided, this cert generates it's own certificate authority. Optional. diff --git a/docs/content/administration/command-line.zh-cn.md b/docs/content/administration/command-line.zh-cn.md index bd3d0c72bcf..6e6bcb6082d 100644 --- a/docs/content/administration/command-line.zh-cn.md +++ b/docs/content/administration/command-line.zh-cn.md @@ -295,7 +295,7 @@ menu: - 选项： - `--host value`：逗号分隔的主机名和IP地址列表，此证书适用于这些主机。支持使用通配符。必填。 - `--ecdsa-curve value`：用于生成密钥的ECDSA曲线。可选。有效选项为P224、P256、P384、P521。 - - `--rsa-bits value`：要生成的RSA密钥的大小。可选。如果设置了--ecdsa-curve，则忽略此选项。（默认值：2048）。 + - `--rsa-bits value`：要生成的RSA密钥的大小。可选。如果设置了--ecdsa-curve，则忽略此选项。（默认值：3072）。 - `--start-date value`：证书的创建日期。可选。（格式：`Jan 1 15:04:05 2011`）。 - `--duration value`：证书有效期。可选。（默认值：8760h0m0s） - `--ca`：如果提供此选项，则证书将生成自己的证书颁发机构。可选。 diff --git a/docs/content/administration/config-cheat-sheet.en-us.md b/docs/content/administration/config-cheat-sheet.en-us.md index 968b47c2302..311a2b2b758 100644 --- a/docs/content/administration/config-cheat-sheet.en-us.md +++ b/docs/content/administration/config-cheat-sheet.en-us.md @@ -681,7 +681,7 @@ Define allowed algorithms and their minimum key length (use -1 to disable a type - `ED25519`: **256** - `ECDSA`: **256** -- `RSA`: **2047**: We set 2047 here because an otherwise valid 2048 RSA key can be reported as 2047 length. +- `RSA`: **3071**: We set 3071 here because an otherwise valid 3072 RSA key can be reported as 3071 length. - `DSA`: **-1**: DSA is now disabled by default. Set to **1024** to re-enable but ensure you may need to reconfigure your SSHD provider ## Webhook (`webhook`) diff --git a/docs/content/administration/config-cheat-sheet.zh-cn.md b/docs/content/administration/config-cheat-sheet.zh-cn.md index 87e45aa6934..39121908c21 100644 --- a/docs/content/administration/config-cheat-sheet.zh-cn.md +++ b/docs/content/administration/config-cheat-sheet.zh-cn.md @@ -648,7 +648,7 @@ Gitea 创建以下非唯一队列： - `ED25519`：**256** - `ECDSA`：**256** -- `RSA`：**2047**：我们在这里设置为2047，因为一个其他方面有效的2048 RSA密钥可能被报告为2047长度。 +- `RSA`：**3071**：我们在这里设置为2047，因为一个其他方面有效的3072 RSA密钥可能被报告为3071长度。 - `DSA`：**-1**：默认情况下禁用DSA。设置为**1024**以重新启用，但请注意可能需要重新配置您的SSHD提供者 ## Webhook (`webhook`) diff --git a/modules/activitypub/user_settings.go b/modules/activitypub/user_settings.go index 20b3d759c2f..ef9bc0a864b 100644 --- a/modules/activitypub/user_settings.go +++ b/modules/activitypub/user_settings.go @@ -8,7 +8,7 @@ import ( "code.gitea.io/gitea/modules/util" ) -const rsaBits = 2048 +const rsaBits = 3072 // GetKeyPair function returns a user's private and public keys func GetKeyPair(user *user_model.User) (pub, priv string, err error) { diff --git a/modules/setting/ssh.go b/modules/setting/ssh.go index bbb7f5ab6cd..ea387e521fa 100644 --- a/modules/setting/ssh.go +++ b/modules/setting/ssh.go @@ -60,7 +60,7 @@ var SSH = struct { ServerMACs: []string{"hmac-sha2-256-etm@openssh.com", "hmac-sha2-256", "hmac-sha1"}, KeygenPath: "", MinimumKeySizeCheck: true, - MinimumKeySizes: map[string]int{"ed25519": 256, "ed25519-sk": 256, "ecdsa": 256, "ecdsa-sk": 256, "rsa": 2047}, + MinimumKeySizes: map[string]int{"ed25519": 256, "ed25519-sk": 256, "ecdsa": 256, "ecdsa-sk": 256, "rsa": 3071}, ServerHostKeys: []string{"ssh/gitea.rsa", "ssh/gogs.rsa"}, AuthorizedKeysCommandTemplate: "{{.AppPath}} --config={{.CustomConf}} serv key-{{.Key.ID}}", PerWriteTimeout: PerWriteTimeout, diff --git a/tests/integration/api_httpsig_test.go b/tests/integration/api_httpsig_test.go index 4520364527f..675ec54ff58 100644 --- a/tests/integration/api_httpsig_test.go +++ b/tests/integration/api_httpsig_test.go @@ -11,7 +11,9 @@ import ( "testing" auth_model "code.gitea.io/gitea/models/auth" + "code.gitea.io/gitea/modules/setting" api "code.gitea.io/gitea/modules/structs" + "code.gitea.io/gitea/modules/test" "code.gitea.io/gitea/tests" "github.com/go-fed/httpsig" @@ -52,6 +54,7 @@ fhTNAzWwZoQ91aHdAAAAFHUwMDIyMTQ2QGljdHMtcC1ueC03AQIDBAUG func TestHTTPSigPubKey(t *testing.T) { // Add our public key to user1 defer tests.PrepareTestEnv(t)() + defer test.MockVariableValue(&setting.SSH.MinimumKeySizeCheck, false)() session := loginUser(t, "user1") token := url.QueryEscape(getTokenForLoggedInUser(t, session, auth_model.AccessTokenScopeWriteUser)) keysURL := fmt.Sprintf("/api/v1/user/keys?token=%s", token)