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 <wxiaoguang@gmail.com>
This commit is contained in:
mainboarder 2023-08-28 02:53:16 +02:00 committed by GitHub
parent 2401e6e121
commit c533991519
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
10 changed files with 12 additions and 9 deletions

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@ -43,7 +43,7 @@ Outputs to 'cert.pem' and 'key.pem' and will overwrite existing files.`,
}, },
&cli.IntFlag{ &cli.IntFlag{
Name: "rsa-bits", Name: "rsa-bits",
Value: 2048, Value: 3072,
Usage: "Size of RSA key to generate. Ignored if --ecdsa-curve is set", Usage: "Size of RSA key to generate. Ignored if --ecdsa-curve is set",
}, },
&cli.StringFlag{ &cli.StringFlag{

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@ -1339,7 +1339,7 @@ LEVEL = Info
;; Define allowed algorithms and their minimum key length (use -1 to disable a type) ;; Define allowed algorithms and their minimum key length (use -1 to disable a type)
;ED25519 = 256 ;ED25519 = 256
;ECDSA = 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 ;DSA = -1 ; set to 1024 to switch on
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

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@ -11,7 +11,7 @@ fi
if [ ! -f /data/ssh/ssh_host_rsa_key ]; then if [ ! -f /data/ssh/ssh_host_rsa_key ]; then
echo "Generating /data/ssh/ssh_host_rsa_key..." 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 fi
if [ ! -f /data/ssh/ssh_host_ecdsa_key ]; then if [ ! -f /data/ssh/ssh_host_ecdsa_key ]; then

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@ -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 - `--ecdsa-curve value`: ECDSA curve to use to generate a key. Optional. Valid options
are P224, P256, P384, P521. are P224, P256, P384, P521.
- `--rsa-bits value`: Size of RSA key to generate. Optional. Ignored if --ecdsa-curve is - `--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`). - `--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) - `--duration value`: Duration which the certificate is valid for. Optional. (default: 8760h0m0s)
- `--ca`: If provided, this cert generates it's own certificate authority. Optional. - `--ca`: If provided, this cert generates it's own certificate authority. Optional.

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@ -295,7 +295,7 @@ menu:
- 选项: - 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。 - `--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。 - `--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`)。 - `--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 - `--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。 - `--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。

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@ -681,7 +681,7 @@ Define allowed algorithms and their minimum key length (use -1 to disable a type
- `ED25519`: **256** - `ED25519`: **256**
- `ECDSA`: **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 - `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`) ## Webhook (`webhook`)

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@ -648,7 +648,7 @@ Gitea 创建以下非唯一队列:
- `ED25519`**256** - `ED25519`**256**
- `ECDSA`**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 - `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`) ## Webhook (`webhook`)

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@ -8,7 +8,7 @@ import (
"code.gitea.io/gitea/modules/util" "code.gitea.io/gitea/modules/util"
) )
const rsaBits = 2048 const rsaBits = 3072
// GetKeyPair function returns a user's private and public keys // GetKeyPair function returns a user's private and public keys
func GetKeyPair(user *user_model.User) (pub, priv string, err error) { func GetKeyPair(user *user_model.User) (pub, priv string, err error) {

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@ -60,7 +60,7 @@ var SSH = struct {
ServerMACs: []string{"hmac-sha2-256-etm@openssh.com", "hmac-sha2-256", "hmac-sha1"}, ServerMACs: []string{"hmac-sha2-256-etm@openssh.com", "hmac-sha2-256", "hmac-sha1"},
KeygenPath: "", KeygenPath: "",
MinimumKeySizeCheck: true, 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"}, ServerHostKeys: []string{"ssh/gitea.rsa", "ssh/gogs.rsa"},
AuthorizedKeysCommandTemplate: "{{.AppPath}} --config={{.CustomConf}} serv key-{{.Key.ID}}", AuthorizedKeysCommandTemplate: "{{.AppPath}} --config={{.CustomConf}} serv key-{{.Key.ID}}",
PerWriteTimeout: PerWriteTimeout, PerWriteTimeout: PerWriteTimeout,

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@ -11,7 +11,9 @@ import (
"testing" "testing"
auth_model "code.gitea.io/gitea/models/auth" auth_model "code.gitea.io/gitea/models/auth"
"code.gitea.io/gitea/modules/setting"
api "code.gitea.io/gitea/modules/structs" api "code.gitea.io/gitea/modules/structs"
"code.gitea.io/gitea/modules/test"
"code.gitea.io/gitea/tests" "code.gitea.io/gitea/tests"
"github.com/go-fed/httpsig" "github.com/go-fed/httpsig"
@ -52,6 +54,7 @@ fhTNAzWwZoQ91aHdAAAAFHUwMDIyMTQ2QGljdHMtcC1ueC03AQIDBAUG
func TestHTTPSigPubKey(t *testing.T) { func TestHTTPSigPubKey(t *testing.T) {
// Add our public key to user1 // Add our public key to user1
defer tests.PrepareTestEnv(t)() defer tests.PrepareTestEnv(t)()
defer test.MockVariableValue(&setting.SSH.MinimumKeySizeCheck, false)()
session := loginUser(t, "user1") session := loginUser(t, "user1")
token := url.QueryEscape(getTokenForLoggedInUser(t, session, auth_model.AccessTokenScopeWriteUser)) token := url.QueryEscape(getTokenForLoggedInUser(t, session, auth_model.AccessTokenScopeWriteUser))
keysURL := fmt.Sprintf("/api/v1/user/keys?token=%s", token) keysURL := fmt.Sprintf("/api/v1/user/keys?token=%s", token)