Zig

PKCS7 Decrypt Using .pfx or .p12 File

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Demonstrates how to decrypt MIME using a specifc PFX file (.pfx or .p12) for the source of certificate(s) and private key(s). Zig

const std = @import("std");
const chilkat = @import("chilkat");

pub fn main(init: std.process.Init) !void {
    const alloc = init.arena.allocator();

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

    const mime = try chilkat.Mime.init();
    defer mime.deinit();

    // Load the MIME
    mime.loadMimeFile("encrypted.mim") catch {
        std.debug.print("{s}\n", .{try mime.getLastErrorText(alloc)});
        return;
    };

    // Decrypt using a specific PFX file:
    const pfx_password = "myPassword";
    mime.decryptUsingPfxFile("c:/myPfxFiles/myCertAndPrivateKey.pfx", pfx_password) catch {
        std.debug.print("{s}\n", .{try mime.getLastErrorText(alloc)});
        return;
    };

    // Display the decrypted MIME:
    std.debug.print("{s}\n", .{try mime.getMime(alloc)});

    // Note: The MIME to be decrypted should look something like this
    // when viewed in a text editor:
    // (Note that the Content-Type is application/x-pkcs7-mime)

    // Content-Disposition: attachment; filename="smime.p7m";
    // Content-Transfer-Encoding: base64
    // Content-Type: application/x-pkcs7-mime;
    //  name="smime.p7m";
    //
    // MIICRAYJKoZIhvcNAQcDoIICNTCCAjECAQAxggHIMIIBxAIBADCBqzCBlTELMAkGA1UEBhMCVVMx
    // CzAJBgNVBAgTAlVUMRcwFQYDVQQHEw5TYWx0IExha2UgQ2l0eTEeMBwGA1UEChMVVGhlIFVTRVJU
    // UlVTVCBOZXR3b3JrMSEwHwYDVQQLExhodHRwOi8vd3d3LnVzZXJ0cnVzdC5jb20xHTAbBgNVBAMT
    // FFVUTi1VU0VSRmlyc3QtT2JqZWN0AhEA5vxolKNrYgp1Z7ABICdK+zANBgkqhkiG9w0BAQEFAASC
    // AQAJ68jTh3u3ovsOuz1aHXTV90GBB6DMfCdx0bZ85trSvDXBevMOtQdctz653de8EB2xU4RlaPQa
    // oBpF8G01PMaKezd+FGLbhm7gmKl7boej3BboUzM4wrwjc8qHTGc/haT1ZA3jUU3DR4emVXNmRgWc
    // FDU5Dnkf+Z2YXQop9wPCf1Ng+8LLjBX9yxgXP1ZyFDe9vUnSkk2fmZatEY2Y6eWHNbrj6q4F40qN
    // PAyZW1rJSFmKTSPSzv7S0VWBMh+FgUKtqk4I6/+zhneLYeJBZFskmMIGFpgKdgrN7vbbr1a2gv/M
    // PbHUxwKMD4KZ2auyuGKMVLBOm+n8v5f8EegloL/UMGAGCSqGSIb3DQEHATAZBggqhkiG9w0DAjAN
    // AgE6BAgcohHNLdl9FoA4q22x8vXs05wuScRgLhwMOzvdGQkBJx+6iQDBuoCVxF8sQ35g+0PPxN3M
    // 6Zw6nI1gSIIKBS3ZjtI=
}