Chilkat HOME .NET Core C# Android™ AutoIt C C# C++ Chilkat2-Python CkPython Classic ASP DataFlex Delphi ActiveX Delphi DLL Go Java Lianja Mono C# Node.js Objective-C PHP ActiveX PHP Extension Perl PowerBuilder PowerShell PureBasic Ruby SQL Server Swift 2 Swift 3,4,5... Tcl Unicode C Unicode C++ VB.NET VBScript Visual Basic 6.0 Visual FoxPro Xojo Plugin
(Unicode C) Verify and Unwrap S/MIME, and get Information about CMS SignatureDemonstrates calling the Verify method to verify and unwrap S/MIME. The MIME is restored to the original structure that it would have originally had prior to signing. The Verify method works with both detached signatures, as well as opaque/attached signatures. Calls LastJsonData to get information about the signature(s) that were verified.
#include <C_CkMimeW.h> #include <C_CkJsonObjectW.h> #include <C_CkDtObjW.h> void ChilkatSample(void) { HCkMimeW mime; BOOL success; BOOL verified; HCkJsonObjectW json; HCkDtObjW signingTime; HCkDtObjW authAttrSigningTimeUtctime; const wchar_t *issuerCN; const wchar_t *serial; const wchar_t *strVal; const wchar_t *certSerialNumber; const wchar_t *certIssuerCN; const wchar_t *certDigestAlgOid; const wchar_t *certDigestAlgName; const wchar_t *contentType; const wchar_t *messageDigest; const wchar_t *signingAlgOid; const wchar_t *signingAlgName; const wchar_t *authAttrContentTypeName; const wchar_t *authAttrContentTypeOid; const wchar_t *authAttrSigningTimeName; const wchar_t *authAttrMessageDigestName; const wchar_t *authAttrMessageDigestDigest; const wchar_t *authAttr1_2_840_113549_1_9_15Der; const wchar_t *authAttr1_3_6_1_4_1_311_16_4Der; int i; int count_i; // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. mime = CkMimeW_Create(); // Load the signed MIME from a file... success = CkMimeW_LoadMimeFile(mime,L"qa_data/mime/detached_sig.eml"); if (success == FALSE) { wprintf(L"%s\n",CkMimeW_lastErrorText(mime)); CkMimeW_Dispose(mime); return; } // Verify the S/MIME and restore the MIME // to the structure/content it had prior to signing. verified = CkMimeW_Verify(mime); if (verified == FALSE) { wprintf(L"%s\n",CkMimeW_lastErrorText(mime)); CkMimeW_Dispose(mime); return; } // Examine the details of what was verified. json = CkMimeW_LastJsonData(mime); CkJsonObjectW_putEmitCompact(json,FALSE); wprintf(L"%s\n",CkJsonObjectW_emit(json)); // The code to parse the following JSON (i.e. extract desired information) is shown below.. // { // "pkcs7": { // "verify": { // "certs": [ // { // "issuerCN": "VeriSign Class 1 Public Primary Certification Authority - G3", // "serial": "0702A21A85B84B659E180A6EE6F5A365" // }, // { // "issuerCN": "VeriSign Class 1 Public Primary Certification Authority - G3", // "serial": "008B5B75568454850B00CFAF3848CEB1A4" // }, // { // "issuerCN": "Symantec Class 1 Individual Subscriber CA - G5", // "serial": "619C55C32FF6BD1A7B7E0330D21C8F3C" // } // ], // "digestAlgorithms": [ // "sha1" // ], // "signerInfo": [ // { // "cert": { // "serialNumber": "619C55C32FF6BD1A7B7E0330D21C8F3C", // "issuerCN": "Symantec Class 1 Individual Subscriber CA - G5", // "digestAlgOid": "1.3.14.3.2.26", // "digestAlgName": "SHA1" // }, // "contentType": "1.2.840.113549.1.7.1", // "signingTime": "160428055000Z", // "messageDigest": "2hJJVmO/jtaJV5uCKMFzIkRRvtY=", // "signingAlgOid": "1.2.840.113549.1.1.1", // "signingAlgName": "RSA-PKCSV-1_5", // "authAttr": { // "1.2.840.113549.1.9.3": { // "name": "contentType", // "oid": "1.2.840.113549.1.7.1" // }, // "1.2.840.113549.1.9.5": { // "name": "signingTime", // "utctime": "160428055000Z" // }, // "1.2.840.113549.1.9.4": { // "name": "messageDigest", // "digest": "2hJJVmO/jtaJV5uCKMFzIkRRvtY=" // }, // "1.2.840.113549.1.9.15": { // "der": "MFAwCwYJYIZIAWUDBAECMAoGCCqGSIb3DQMHMA4GCCqGSIb3DQMCAgIAgDANBggqhkiG9w0DAgIBQDAHBgUrDgMCBzANBggqhkiG9w0DAgIBKA==" // }, // "1.3.6.1.4.1.311.16.4": { // "der": "MIG7MIG...7fgMw0hyPPA==" // } // } // } // ] // } // } // } // Use this online tool to generate parsing code from sample JSON: // Generate Parsing Code from JSON signingTime = CkDtObjW_Create(); authAttrSigningTimeUtctime = CkDtObjW_Create(); i = 0; count_i = CkJsonObjectW_SizeOfArray(json,L"pkcs7.verify.certs"); while (i < count_i) { CkJsonObjectW_putI(json,i); issuerCN = CkJsonObjectW_stringOf(json,L"pkcs7.verify.certs[i].issuerCN"); serial = CkJsonObjectW_stringOf(json,L"pkcs7.verify.certs[i].serial"); i = i + 1; } i = 0; count_i = CkJsonObjectW_SizeOfArray(json,L"pkcs7.verify.digestAlgorithms"); while (i < count_i) { CkJsonObjectW_putI(json,i); strVal = CkJsonObjectW_stringOf(json,L"pkcs7.verify.digestAlgorithms[i]"); i = i + 1; } i = 0; count_i = CkJsonObjectW_SizeOfArray(json,L"pkcs7.verify.signerInfo"); while (i < count_i) { CkJsonObjectW_putI(json,i); certSerialNumber = CkJsonObjectW_stringOf(json,L"pkcs7.verify.signerInfo[i].cert.serialNumber"); certIssuerCN = CkJsonObjectW_stringOf(json,L"pkcs7.verify.signerInfo[i].cert.issuerCN"); certDigestAlgOid = CkJsonObjectW_stringOf(json,L"pkcs7.verify.signerInfo[i].cert.digestAlgOid"); certDigestAlgName = CkJsonObjectW_stringOf(json,L"pkcs7.verify.signerInfo[i].cert.digestAlgName"); contentType = CkJsonObjectW_stringOf(json,L"pkcs7.verify.signerInfo[i].contentType"); CkJsonObjectW_DtOf(json,L"pkcs7.verify.signerInfo[i].signingTime",FALSE,signingTime); messageDigest = CkJsonObjectW_stringOf(json,L"pkcs7.verify.signerInfo[i].messageDigest"); signingAlgOid = CkJsonObjectW_stringOf(json,L"pkcs7.verify.signerInfo[i].signingAlgOid"); signingAlgName = CkJsonObjectW_stringOf(json,L"pkcs7.verify.signerInfo[i].signingAlgName"); authAttrContentTypeName = CkJsonObjectW_stringOf(json,L"pkcs7.verify.signerInfo[i].authAttr.\"1.2.840.113549.1.9.3\".name"); authAttrContentTypeOid = CkJsonObjectW_stringOf(json,L"pkcs7.verify.signerInfo[i].authAttr.\"1.2.840.113549.1.9.3\".oid"); authAttrSigningTimeName = CkJsonObjectW_stringOf(json,L"pkcs7.verify.signerInfo[i].authAttr.\"1.2.840.113549.1.9.5\".name"); CkJsonObjectW_DtOf(json,L"pkcs7.verify.signerInfo[i].authAttr.\"1.2.840.113549.1.9.5\".utctime",FALSE,authAttrSigningTimeUtctime); authAttrMessageDigestName = CkJsonObjectW_stringOf(json,L"pkcs7.verify.signerInfo[i].authAttr.\"1.2.840.113549.1.9.4\".name"); authAttrMessageDigestDigest = CkJsonObjectW_stringOf(json,L"pkcs7.verify.signerInfo[i].authAttr.\"1.2.840.113549.1.9.4\".digest"); authAttr1_2_840_113549_1_9_15Der = CkJsonObjectW_stringOf(json,L"pkcs7.verify.signerInfo[i].authAttr.\"1.2.840.113549.1.9.15\".der"); authAttr1_3_6_1_4_1_311_16_4Der = CkJsonObjectW_stringOf(json,L"pkcs7.verify.signerInfo[i].authAttr.\"1.3.6.1.4.1.311.16.4\".der"); i = i + 1; } CkJsonObjectW_Dispose(json); CkMimeW_Dispose(mime); CkDtObjW_Dispose(signingTime); CkDtObjW_Dispose(authAttrSigningTimeUtctime); } |
© 2000-2024 Chilkat Software, Inc. All Rights Reserved.