本文介绍了如何将证书字符串转换为 X509 结构.?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着跟版网的小编来一起学习吧！
问题描述
谁能告诉我如何将字符串内容转换为X509结构.我正在使用 openssl 读取 X509 结构.
can any one tell me how to convert the string content into X509 structure . i am using openssl to read the X509 Structure.
示例:证书字符串
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
这是我将作为字符串输入获得的证书.如何将其转换为 X509.
this the certificate i am going to get as string input.how to convert this into X509.
推荐答案
当作为字符串输入提供时，您可以使用此 OpenSSL 代码片段加载证书:
You can use this OpenSSL code snippet to load the certificate when provided as a string input:
#include <openssl/bio.h>
#include <openssl/x509.h>
#include <openssl/pem.h>
const unsigned char *data =
"-----BEGIN CERTIFICATE-----
"
"MIIExDCCA6ygAwIBAgIJAK0JmDc/YXWsMA0GCSqGSIb3DQEBBQUAMIGcMQswCQYD
"
/*...*/
"gRQT0OIU5vXzsmhjqKoZ+dBlh1FpSOX2
"
"-----END CERTIFICATE-----";
BIO *bio;
X509 *certificate;
bio = BIO_new(BIO_s_mem());
BIO_puts(bio, data);
certificate = PEM_read_bio_X509(bio, NULL, NULL, NULL);
希望这会有所帮助.
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