[英]Attain AES128/CBC/PKCS5 in iOS
我必須向具有以下加密要求AES128 / CBC / PKCS5Padding的安全服務器發出呼叫,但是iOS中可用的CCCrypt或CommonCrypto庫提供具有CBC模式的PKCS7Padding。
關於如何在服務器上實現這種加密的任何想法都是第三方,並且無法更改其實現。 我正在使用自定義IV。
請求代碼在這里。
NSString* exampleXML = @"<my xml file contents>"
const char myByteArray1[] = {
0x12,0x13,0x14,0x15,
0x16,0x17,0x18,0x19,
0x12,0x13,0x14,0x15,
0x16,0x17,0x18,0x19 };
NSData *iv = [NSData dataWithBytes:myByteArray length:sizeof(myByteArray)];
NSString* headPadding=@"GH12RT25Y2";
int* status=nil;
NSString* encryptionKey=@"FTH25GFD658ERT21YHU21==2";
NSString* base64encodedPass=[[encryptionKey dataUsingEncoding:NSUTF8StringEncoding] base64EncodedStringWithOptions:0]; // Base64 Encode
// Using NSData+CommonCrypto.h
NSData * encrypted = [[exampleXml dataUsingEncoding:NSUTF8StringEncoding] dataEncryptedUsingAlgorithm:kCCAlgorithmAES128 key:base64encodedPass initializationVector:iv options:kCCOptionPKCS7Padding error:status];
NSMutableData *headData =[NSMutableData dataWithData:[headPadding dataUsingEncoding:NSUTF8StringEncoding]];
[headData appendData:encrypted];
NSURL *sRequestURL = [NSURL URLWithString:@"myurl.com"];
NSMutableURLRequest *myRequest = [NSMutableURLRequest requestWithURL:sRequestURL];
NSString *sMessageLength = [NSString stringWithFormat:@"%lu", (unsigned long)[headData length]];
[myRequest addValue: @"text/xml; charset=utf-8" forHTTPHeaderField:@"Content-Type"];
// [myRequest addValue: @"text/xml" forHTTPHeaderField:@"Content-Type"];
[myRequest addValue: sMessageLength forHTTPHeaderField:@"Content-Length"];
[myRequest setHTTPMethod:@"POST"];
[myRequest setHTTPBody:headData];
NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:myRequest delegate:self];
[theConnection start];
回應說:
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"><soap:Body><soap:Fault><faultcode>soap:Server</faultcode><faultstring>Couldn't parse stream.</faultstring></soap:Fault></soap:Body></soap:Envelope>
您是否嘗試過查看是否有效? 在許多情況下,兩者可以互換而不會出現問題。 填充發生在最后,因此,如果您只是垃圾,則不是填充引起問題。
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