(Objective-C) Load Encrypted PEM Containing ECC Private Key and Certs and Examine Contents

Loads an encrypted PEM containing an ECC private key and ECC certificate (and chain), and examines the contents.

Note: This example requires Chilkat v9.5.0.66.

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#import <CkoStringBuilder.h>
#import <CkoPem.h>
#import <CkoPrivateKey.h>
#import <CkoJsonObject.h>
#import <CkoCert.h>
#import <NSString.h>

// Note: This example requires Chilkat v9.5.0.66.

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

// Create a PEM containing a valid EC private key and certificates.
// The password for this encrypted PEM is "secret123"

CkoStringBuilder *sb = [[CkoStringBuilder alloc] init];
BOOL bCrlf = YES;
[sb AppendLine: @"-----BEGIN ENCRYPTED PRIVATE KEY-----" crlf: bCrlf];
[sb AppendLine: @"MIGtMEkGCSqGSIb3DQEFDTA8MBsGCSqGSIb3DQEFDDAOBAiweNs9xIWNoAICCAAw" crlf: bCrlf];
[sb AppendLine: @"HQYJYIZIAWUDBAECBBCz0IMryNxuJEo5ChMktg9cBGCsKDEeRqGJX4g/X2c6CNtK" crlf: bCrlf];
[sb AppendLine: @"I8q7KClUwy9ms7ckHZAw/997WuW9QIGGnJEfHL/jSJsZViDwFAB4sunmdHSOTGMD" crlf: bCrlf];
[sb AppendLine: @"3ZINNlkA+XobMaQtj1HNERtb1qskW1mf/X0sauw5aPA=" crlf: bCrlf];
[sb AppendLine: @"-----END ENCRYPTED PRIVATE KEY-----" crlf: bCrlf];
[sb AppendLine: @"-----BEGIN CERTIFICATE-----" crlf: bCrlf];
[sb AppendLine: @"MIICzjCCAlOgAwIBAgIETULS8zAKBggqhkjOPQQDAzBtMQswCQYDVQQGEwJVUzEW" crlf: bCrlf];
[sb AppendLine: @"MBQGA1UEChMNRW50cnVzdCwgSW5jLjEfMB0GA1UECxMWRm9yIFRlc3QgUHVycG9z" crlf: bCrlf];
[sb AppendLine: @"ZXMgT25seTElMCMGA1UEAxMcRW50cnVzdCBFQ0MgRGVtb25zdHJhdGlvbiBDQTAe" crlf: bCrlf];
[sb AppendLine: @"Fw0xNjAzMTgxMjM5MzFaFw0xNjA1MTcxMzA5MzFaMFgxHzAdBgNVBAsTFkZvciBU" crlf: bCrlf];
[sb AppendLine: @"ZXN0IFB1cnBvc2VzIE9ubHkxHTAbBgNVBAsTFFBlcnNvbmEgTm90IFZlcmlmaWVk" crlf: bCrlf];
[sb AppendLine: @"MRYwFAYDVQQDEw1DaGlsa2F0IEFkbWluMHYwEAYHKoZIzj0CAQYFK4EEACIDYgAE" crlf: bCrlf];
[sb AppendLine: @"uB62JGMJKXnp1PNsOOIYKGhrzfLev3O+UuthL6UzEqNNDTd8dEYMUQP/DTS3qk98" crlf: bCrlf];
[sb AppendLine: @"gyQEFxdmZUsPF0fFokkZZ1cV6z7QD3MsPvSjrBzB0GUB3r8CLnDK/F4pF2Q995hr" crlf: bCrlf];
[sb AppendLine: @"o4HYMIHVMA4GA1UdDwEB/wQEAwIDiDAdBgNVHSUEFjAUBggrBgEFBQcDAgYIKwYB" crlf: bCrlf];
[sb AppendLine: @"BQUHAwQwNwYDVR0fBDAwLjAsoCqgKIYmaHR0cDovL2NybC5lbnRydXN0LmNvbS9D" crlf: bCrlf];
[sb AppendLine: @"UkwvZWNjZGVtby5jcmwwIAYDVR0RBBkwF4EVYWRtaW5AY2hpbGthdHNvZnQuY29t" crlf: bCrlf];
[sb AppendLine: @"MB8GA1UdIwQYMBaAFCQFS+Fkghr4Ccz7eHkh+nDmkzLqMB0GA1UdDgQWBBTB82fm" crlf: bCrlf];
[sb AppendLine: @"vrdG2iX5uS/agVW3L4DisjAJBgNVHRMEAjAAMAoGCCqGSM49BAMDA2kAMGYCMQCH" crlf: bCrlf];
[sb AppendLine: @"ILghMprWoYPEp9mCE+tpVE7vYwkFV3m0RDzT2BSUezL8Ky78XNk+XPqSB2biT70C" crlf: bCrlf];
[sb AppendLine: @"MQDCase1oaPY4AxCmjB+rEB1ir+QS8mrtF+iCSqHVv1aIxT6abQL57BZSdvwIm/T" crlf: bCrlf];
[sb AppendLine: @"T8o=" crlf: bCrlf];
[sb AppendLine: @"-----END CERTIFICATE-----" crlf: bCrlf];
[sb AppendLine: @"-----BEGIN CERTIFICATE-----" crlf: bCrlf];
[sb AppendLine: @"MIICljCCAhugAwIBAgIETUHhezAKBggqhkjOPQQDAzBtMQswCQYDVQQGEwJVUzEW" crlf: bCrlf];
[sb AppendLine: @"MBQGA1UEChMNRW50cnVzdCwgSW5jLjEfMB0GA1UECxMWRm9yIFRlc3QgUHVycG9z" crlf: bCrlf];
[sb AppendLine: @"ZXMgT25seTElMCMGA1UEAxMcRW50cnVzdCBFQ0MgRGVtb25zdHJhdGlvbiBDQTAe" crlf: bCrlf];
[sb AppendLine: @"Fw0xMTAxMjcyMDQ5NTRaFw0zNjAxMjcyMTE5NTRaMG0xCzAJBgNVBAYTAlVTMRYw" crlf: bCrlf];
[sb AppendLine: @"FAYDVQQKEw1FbnRydXN0LCBJbmMuMR8wHQYDVQQLExZGb3IgVGVzdCBQdXJwb3Nl" crlf: bCrlf];
[sb AppendLine: @"cyBPbmx5MSUwIwYDVQQDExxFbnRydXN0IEVDQyBEZW1vbnN0cmF0aW9uIENBMHYw" crlf: bCrlf];
[sb AppendLine: @"EAYHKoZIzj0CAQYFK4EEACIDYgAEhCWBpuJuzvRtQyibkcbCj7EkcwAqS2EqRQ/Q" crlf: bCrlf];
[sb AppendLine: @"ntroTdRM2SssEN4TruTxtwcY/7lR64L6Tfjz3+ujrfjNFss3EWVpUlbOJ+xHC3xH" crlf: bCrlf];
[sb AppendLine: @"PteNyAGZtHbZO3tVuhP6yX6dFqCCo4GLMIGIMCsGA1UdEAQkMCKADzIwMTEwMTI3" crlf: bCrlf];
[sb AppendLine: @"MjA0OTU0WoEPMjAzNjAxMjcyMTE5NTRaMAsGA1UdDwQEAwIBBjAfBgNVHSMEGDAW" crlf: bCrlf];
[sb AppendLine: @"gBQkBUvhZIIa+AnM+3h5Ifpw5pMy6jAdBgNVHQ4EFgQUJAVL4WSCGvgJzPt4eSH6" crlf: bCrlf];
[sb AppendLine: @"cOaTMuowDAYDVR0TBAUwAwEB/zAKBggqhkjOPQQDAwNpADBmAjEAyAhA70OIb6lb" crlf: bCrlf];
[sb AppendLine: @"fN6kOTQloHyCLmihNK+PT5wOuaMR//KSQP2c/H18YhDYnlwMxF9fAjEA0URaJOXM" crlf: bCrlf];
[sb AppendLine: @"F0qwdvS2rm7N5PWMLc/4BbeOZyZ94XJiG5u96iTgp6N9JI0MMmCQE87N" crlf: bCrlf];
[sb AppendLine: @"-----END CERTIFICATE-----" crlf: bCrlf];

CkoPem *pem = [[CkoPem alloc] init];
BOOL success = [pem LoadPem: [sb GetAsString] password: @"secret123"];
if (success != YES) {
    NSLog(@"%@",pem.LastErrorText);
    return;
}

// Get the private key and examine it in JSON Web Key form (JWK)
CkoPrivateKey *privKey = [pem GetPrivateKey: [NSNumber numberWithInt: 0]];
if (pem.LastMethodSuccess != YES) {
    NSLog(@"%@",pem.LastErrorText);
    return;
}

CkoJsonObject *json = [[CkoJsonObject alloc] init];
[json Load: [privKey GetJwk]];
json.EmitCompact = NO;
NSLog(@"%@",[json Emit]);

// JWK output:

// 	{ 
// 	  "kty": "EC",
// 	  "crv": "P-384",
// 	  "x": "uB62JGMJKXnp1PNsOOIYKGhrzfLev3O-UuthL6UzEqNNDTd8dEYMUQP_DTS3qk98",
// 	  "y": "gyQEFxdmZUsPF0fFokkZZ1cV6z7QD3MsPvSjrBzB0GUB3r8CLnDK_F4pF2Q995hr",
// 	  "d": "ugTy2ZpuQqv1uQyLSgz1SPRvngzrd5vLyzU2ICaJd25zZRIxxlNR-uFo9UWC6llt"
// 	}

// Now get 1st certificate and examine in XML format:
CkoCert *cert = [pem GetCert: [NSNumber numberWithInt: 0]];
if (pem.LastMethodSuccess != YES) {
    NSLog(@"%@",pem.LastErrorText);
    return;
}

NSString *certXml = [cert ExportCertXml];

NSLog(@"%@",certXml);

// XML output:

// <?xml version="1.0" encoding="utf-8" ?>
// <sequence>
//     <sequence>
//         <contextSpecific tag="0" constructed="1">
//             <int>02</int>
//         </contextSpecific>
//         <int>4D42D2F3</int>
//         <sequence>
//             <oid>1.2.840.10045.4.3.3</oid>
//         </sequence>
//         <sequence>
//             <set>
//                 <sequence>
//                     <oid>2.5.4.6</oid>
//                     <printable>US</printable>
//                 </sequence>
//             </set>
//             <set>
//                 <sequence>
//                     <oid>2.5.4.10</oid>
//                     <printable>Entrust, Inc.</printable>
//                 </sequence>
//             </set>
//             <set>
//                 <sequence>
//                     <oid>2.5.4.11</oid>
//                     <printable>For Test Purposes Only</printable>
//                 </sequence>
//             </set>
//             <set>
//                 <sequence>
//                     <oid>2.5.4.3</oid>
//                     <printable>Entrust ECC Demonstration CA</printable>
//                 </sequence>
//             </set>
//         </sequence>
//         <sequence>
//             <utctime>160318123931Z</utctime>
//             <utctime>160517130931Z</utctime>
//         </sequence>
//         <sequence>
//             <set>
//                 <sequence>
//                     <oid>2.5.4.11</oid>
//                     <printable>For Test Purposes Only</printable>
//                 </sequence>
//             </set>
//             <set>
//                 <sequence>
//                     <oid>2.5.4.11</oid>
//                     <printable>Persona Not Verified</printable>
//                 </sequence>
//             </set>
//             <set>
//                 <sequence>
//                     <oid>2.5.4.3</oid>
//                     <printable>Chilkat Admin</printable>
//                 </sequence>
//             </set>
//         </sequence>
//         <sequence>
//             <sequence>
//                 <oid>1.2.840.10045.2.1</oid>
//                 <oid>1.3.132.0.34</oid>
//             </sequence>
//             <bits n="776">04B81EB62463092979E9D4F36C38E21828686BCDF2DEBF73BE52EB612FA53312A34D0D377C74460C5103FF0D34B7AA4F7C832404171766654B0F1747C5A24919675715EB3ED00F732C3EF4A3AC1CC1D06501DEBF022E70CAFC5E2917643DF7986B</bits>
//         </sequence>
//         <contextSpecific tag="3" constructed="1">
//             <sequence>
//                 <sequence>
//                     <oid>2.5.29.15</oid>
//                     <bool>1</bool>
//                     <octets>AwIDiA==</octets>
//                 </sequence>
//                 <sequence>
//                     <oid>2.5.29.37</oid>
//                     <octets>MBQGCCsGAQUFBwMCBggrBgEFBQcDBA==</octets>
//                 </sequence>
//                 <sequence>
//                     <oid>2.5.29.31</oid>
//                     <octets>MC4wLKAqoCiGJmh0dHA6Ly9jcmwuZW50cnVzdC5jb20vQ1JML2VjY2RlbW8uY3Js</octets>
//                 </sequence>
//                 <sequence>
//                     <oid>2.5.29.17</oid>
//                     <octets>MBeBFWFkbWluQGNoaWxrYXRzb2Z0LmNvbQ==</octets>
//                 </sequence>
//                 <sequence>
//                     <oid>2.5.29.35</oid>
//                     <octets>MBaAFCQFS+Fkghr4Ccz7eHkh+nDmkzLq</octets>
//                 </sequence>
//                 <sequence>
//                     <oid>2.5.29.14</oid>
//                     <octets>BBTB82fmvrdG2iX5uS/agVW3L4Disg==</octets>
//                 </sequence>
//                 <sequence>
//                     <oid>2.5.29.19</oid>
//                     <octets>MAA=</octets>
//                 </sequence>
//             </sequence>
//         </contextSpecific>
//     </sequence>
//     <sequence>
//         <oid>1.2.840.10045.4.3.3</oid>
//     </sequence>
//     <bits n="832">30660231008720B821329AD6A183C4A7D98213EB69544EEF6309055779B4443CD3D814947B32FC2B2EFC5CD93E5CFA920766E24FBD023100C26AC7B5A1A3D8E00C429A307EAC40758ABF904BC9ABB45FA2092A8756FD5A2314FA69B40BE7B05949DBF0226FD34FCA</bits>
// </sequence>
// 
// 
//