MySQL SSL：其他签名确认错误

Question

我正在尝试为 MySQL 启用 SSL 连接——SSL 将在 MySQL 中显示为已启用，但由于此错误，我无法建立任何连接：ERROR 2026 (HY000): SSL connection error: ASN: bad other signature Confirmation

我正在运行以下内容：

Ubuntu Version: 14.04.1 LTS (GNU/Linux 3.13.0-34-generic x86_64)
MySQL Version: 5.5.38-0ubuntu0.14.04.1
OpenSSL Version: OpenSSL 1.0.1f 6 Jan 2014

我使用这些命令来生成我的证书（都在 /etc/mysql 中生成）：

openssl genrsa -out ca-key.pem 2048
openssl req -new -x509 -nodes -days 3650 -key ca-key.pem -out ca-cert.pem -subj "/C=US/ST=NY/O=MyCompany/CN=ca"

openssl req -newkey rsa:2048 -nodes -days 3650 -keyout server-key.pem -out server-req.pem -subj "/C=US/ST=NY/O=MyCompany/CN=server"
openssl rsa -in server-key.pem -out server-key.pem
openssl x509 -req -in server-req.pem -CA ca-cert.pem -CAkey ca-key.pem -set_serial 01 -out server-cert.pem

openssl req -newkey rsa:2048 -nodes -days 3650 -keyout client-key.pem -out client-req.pem -subj "/C=US/ST=NY/O=MyCompany/CN=client"
openssl rsa -in client-key.pem -out client-key.pem
openssl x509 -req -in client-req.pem -CA ca-cert.pem -CAkey ca-key.pem -set_serial 01 -out client-cert.pem

我把以下内容放在 my.cnf 中：

[mysqld]    
ssl-ca=/etc/mysql/ca-cert.pem
ssl-cert=/etc/mysql/server-cert.pem
ssl-key=/etc/mysql/server-key.pem

当我尝试连接指定客户端证书时 - 我收到以下错误：

mysql -uroot -ppassword --ssl-ca=/etc/mysql/ca-cert.pem --ssl-cert=/etc/mysql/client-cert.pem --ssl-key=/etc/mysql/client-key.pem

ERROR 2026 (HY000): SSL connection error: ASN: bad other signature confirmation

如果我在没有 SSL 的情况下连接，我可以看到 MySQL 已正确加载证书：

mysql -uroot -ppassword --ssl=false

mysql> SHOW VARIABLES LIKE '%ssl%';
+---------------+----------------------------+
| Variable_name | Value                      |
+---------------+----------------------------+
| have_openssl  | YES                        |
| have_ssl      | YES                        |
| ssl_ca        | /etc/mysql/ca-cert.pem     |
| ssl_capath    |                            |
| ssl_cert      | /etc/mysql/server-cert.pem |
| ssl_cipher    |                            |
| ssl_key       | /etc/mysql/server-key.pem  |
+---------------+----------------------------+
7 rows in set (0.00 sec)

我生成的证书通过了 OpenSSL 验证和模数：

openssl verify -CAfile ca-cert.pem server-cert.pem client-cert.pem
server-cert.pem: OK
client-cert.pem: OK

我错过了什么？我之前在不同的服务器上使用过相同的过程并且它有效 - 但是 Ubuntu 版本是 12.04 LTS，而 OpenSSL 版本较旧（具体不记得了）。最新的 OpenSSL 有什么变化吗？

任何帮助，将不胜感激！

Answer 1

我用了：

# Generate a CA key and certificate with SHA1 digest

openssl genrsa 2048 > ca-key.pem;
openssl req -sha1 -new -x509 -nodes -days 3650 -key ca-key.pem > ca-cert.pem;

# Create server key and certficate with SHA1 digest, sign it and convert
# the RSA key from PKCS #8 (OpenSSL 1.0 and newer) to the old PKCS #1 format

openssl req -sha1 -newkey rsa:2048 -days 3650 -nodes -keyout server-key.pem > server-req.pem;
openssl x509 -sha1 -req -in server-req.pem -days 3650 -CA ca-cert.pem -CAkey ca-key.pem -set_serial 01 > server-cert.pem;
openssl rsa -in server-key.pem -out server-key.pem;

# Create client key and certificate with SHA digest, sign it and convert
# the RSA key from PKCS #8 (OpenSSL 1.0 and newer) to the old PKCS #1 format

openssl req -sha1 -newkey rsa:2048 -days 3650 -nodes -keyout client-key.pem > client-req.pem;
openssl x509 -sha1 -req -in client-req.pem -days 3650 -CA ca-cert.pem -CAkey ca-key.pem -set_serial 01 > client-cert.pem;
openssl rsa -in client-key.pem -out client-key.pem;

设置我的 ssl (ubuntu 12.04)。我的 mysql 配置包含：

[client]
ssl-cert=/etc/mysql/client-cert.pem
ssl-key=/etc/mysql/client-key.pem

[mysqld]
ssl-ca=/etc/mysql/ca-cert.pem
ssl-cert=/etc/mysql/server-cert.pem
ssl-key=/etc/mysql/server-key.pem

看看这篇关于调试 ssl 的帖子。而这个帖子在OpenSSL的变化（Ubuntu的10.04 - > 14.04）。