指定Arduino WiFiClientSecure证书

问题描述:

您应该以什么格式在WifiClientSecure模块中提供证书(和密钥)? 没有的例子存在,或它的使用文件。指定Arduino WiFiClientSecure证书

我下面阿尔杜伊诺(ESP32)WiFiClientSecure示例代码 - 并试图同时指定CA证书,如以连接:

client.connect(server, 443, test_ca_cert, test_client_cert, test_client_key)

test_client_certtest_client_key是NULL指针)。如果test_ca_cert是一个NULL指针,则SSL连接正常。

如果我尝试自己指定test_ca_cert,我总是得到:

CA cert: mbedtls_x509_crt_parse returned -0x2180(这是“无效的格式”错误代码)

我已经试过千头万绪的test_ca_cert如一个带PEM格式(明文)base64编码证书的字符串,以及一个DER格式证书的字节数组。似乎没有任何工作。

应该指定这个证书的格式是什么?

我想通过蛮力的组合,并通过some mbedtls code online梳理。证书必须在中确切地指定的格式如下 - 即通过在阵列中嵌入你自己的换行符:

unsigned char test_ca_cert[] = 
"-----BEGIN CERTIFICATE-----\n" 
"MIIDpDCCAowCCQC7mCk5Iu3YmDANBgkqhkiG9w0BAQUFADCBkzELMAkGA1UEBhMC\n" 
"VVMxFjAUBgNVBAgMDU5ldyBIYW1wc2hpcmUxDzANBgNVBAcMBk5hc2h1YTEYMBYG\n" 
"A1UECgwPYnJhZGdvb2RtYW4uY29tMR0wGwYDVQQDDBRCcmFkIEdvb2RtYW4gUm9v\n" 
"dCBDQTEiMCAGCSqGSIb3DQEJARYTYnJhZEBicmFkZ29kbWFuLmNvbTAeFw0xNDEy\n" 
"MDgwMTM2NDJaFw0yNDEyMDUwMTM2NDJaMIGTMQswCQYDVQQGEwJVUzEWMBQGA1UE\n" 
"CAwNTmV3IEhhbXBzaGlyZTEPMA0GA1UEBwwGTmFzaHVhMRgwFgYDVQQKDA9icmFk\n" 
"Z29vZG1hbi5jb20xHTAbBgNVBAMMFEJyYWQgR29vZG1hbiBSb290IENBMSIwIAYJ\n" 
"KoZIhvcNAQkBFhNicmFkQGJyYWRnb2RtYW4uY29tMIIBIjANBgkqhkiG9w0BAQEF\n" 
"AAOCAQ8AMIIBCgKCAQEAq0TfPz/2eH1vMhs5wKjZQU5KEpJH8n27jW3cSVPJPRHo\n" 
"tn1S14zzaxuMYhZ1LQJgqT3/V9eVJdJkgoW54dgHLZVMb0xRilJPXNtR9WIZI+3r\n" 
"6+7sm6OOhmxjOKUuTWdK+Rbx/KGU+xjQjlyw7Ir4hRLmfaNAw7gnZWyzVcJbvg8O\n" 
"5JsReO4x4CnDveX0EJK6L9kNpTSLJZoFsVPdA3QJrxUYOw9s7gQYSjxx1SlcXqQQ\n" 
"eWyJWF0FSkRcgRo4qu3JiV94kLUwYNno89G5kU1TnlK0d740KK/A3LN686HhtT66\n" 
"XTtE/GLP9EUdlNgEkSoa00580iZqxYZBjlswa04qPQIDAQABMA0GCSqGSIb3DQEB\n" 
"BQUAA4IBAQBqf27PAMC0cs5qgr6z5nUxSUN+o3Ap0YjNqrvBID0jQNPr3pfW8fy2\n" 
"7dGa3ZAGwPnAmMvx2M6UF5GRYA7lAiC/jBmp0qrdekst4FBx5whJL6tt6sSSmeNp\n" 
"4dF7OpGFFDeuBj1CJlN7dro+nd+wty9f7rpjNmGcNjD/vGOrk9T67uWB5NYDIrcn\n" 
"rBOAVb+yBnDphBH7UIXWnSBCyDGD7SjAnWPQdH6uRAhVrbhIPylC50NwhqjlN5su\n" 
"ll2eQ0Vfp5u+viLK441MwfF77CjhFMs50Ahu7y5ApRD9nzMdqav63dU4oKrdOJgK\n" 
"yiUGy+6qJ0KK7FyaU4YKbcsqmd/kev9m\n" 
"-----END CERTIFICATE-----\n";