(Objective-C) Examine the Contents of a .p7m by Converting to XML

Examines the contents of a .p7m signature by converting it to XML.

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#import <CkoAsn.h>
#import <NSString.h>
#import <CkoXml.h>

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

CkoAsn *asn = [[CkoAsn alloc] init];

BOOL success = [asn LoadBinaryFile: @"qa_data/p7m/a.p7m"];
if (success != YES) {
    NSLog(@"%@",asn.LastErrorText);
    return;
}

// Convert to XML.
NSString *strXml = [asn AsnToXml];

// The XML returned by AsnToXml will be compact.
// To get the XML indented in human-readable form, load
// into the Chilkat XML object and emit..
CkoXml *xml = [[CkoXml alloc] init];
[xml LoadXml: strXml];

NSLog(@"%@",[xml GetXml]);
[xml SaveXml: @"qa_output/a.xml"];

// -----------------------------------------------------------------------------------------
// Also see Chilkat's online tool to examine a .p7m and generate code to duplicate the .p7m
// -----------------------------------------------------------------------------------------