你是否遇到了这种情况，好不容易把自签名HTTPS证书配置好了，访问https接口也成功了，但是图片加载不出来？
传了SDWebImageAllowInvalidSSLCertificates 还是没效果没效果（这种情况只适用于CA我觉得），
并且一直 HTTP load failed (error code: -999 [1:89])，
经过不懈努力，终于找到了在不修改SDWebimageDownloader.m源码的情况下的解决方案；
通过创建SDWebimageDownloader的分类来实现，如下：
.h 文件
1 #import "SDWebImageDownloader.h"2 3 @interface SDWebImageDownloader (AFNHttps)4 5 @end
1 #import <SDWebImageDownloader.h> 2 #import "SDWebImageDownloader+AFNHttps.h" 3 ?4 @implementation SDWebImageDownloader (AFNHttps) 5 ?6 + (void)load {
//设置SDWebImageDownloader的证书 7 ????[SDWebImageDownloader sharedDownloader].urlCredential = [self myUrlCredential]; 8 } 9 10 + (NSURLCredential *)myUrlCredential {11 ????12 ????NSString *thePath = [[NSBundle mainBundle] pathForResource:@"p12证书名" ofType:@"p12"];13 ????//倒入证书 ??????NSLog(@"thePath===========%@",thePath);14 ????NSData *PKCS12Data = [[NSData alloc] initWithContentsOfFile:thePath];15 ????CFDataRef inPKCS12Data = (__bridge CFDataRef)PKCS12Data;16 ????17 ????SecIdentityRef identity = NULL;18 ????// extract the ideneity from the certificate19 ????[self mosM_extractIdentity:inPKCS12Data toIdentity:&identity];20 ????21 ????SecCertificateRef certificate = NULL;22 ????SecIdentityCopyCertificate (identity, &certificate);27 ????28 ????return [NSURLCredential credentialWithIdentity:identity certificates:nil persistence:NSURLCredentialPersistencePermanent];;29 }30 31 32 + (OSStatus)extractIdentity:(CFDataRef)inP12Data toIdentity:(SecIdentityRef*)identity {33 ????OSStatus securityError = errSecSuccess;34 ????CFStringRef password = CFSTR("p12证书密码");35 ????const void *keys[] = { kSecImportExportPassphrase };36 ????const void *values[] = { password };37 ????CFDictionaryRef options = CFDictionaryCreate(NULL, keys, values, 1, NULL, NULL);38 ????CFArrayRef items = CFArrayCreate(NULL, 0, 0, NULL);39 ????securityError = SecPKCS12Import(inP12Data, options, &items);40 ????if (securityError == 0)41 ????{42 ????????CFDictionaryRef ident = CFArrayGetValueAtIndex(items,0);43 ????????const void *tempIdentity = NULL;44 ????????tempIdentity = CFDictionaryGetValue(ident, kSecImportItemIdentity);45 ????????*identity = (SecIdentityRef)tempIdentity;46 ????}47 ????if (options) {48 ????????CFRelease(options);49 ????}50 ????return securityError;51 }SDWebImage 加载Https自签名证书时的图片问题
原文地址：https://www.cnblogs.com/SUPER-F/p/9876522.html