Zig

Load Base64-encoded X.509 Certificate (.cer)

See more Certificates Examples

Loads a digital certificate from a base64 encoded DER X.509 Certificate (.cer, .crt) and fetches information about the cert. Zig

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

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

    const cert = try chilkat.Cert.init();
    defer cert.deinit();

    // LoadFromFile will load virtually any certificate format file.
    // It will auto-recognize the format and load appropiately.
    // A base64-encoded DER X.509 certificate file
    // contains the binary DER in base64 encoded form.
    // Therefore, it is a text file that will begin like this:
    // -----BEGIN CERTIFICATE-----
    // MIIFbjCCBFagAwIBAgIGdDPNv/L0MA0GCSqGSIb3DQEBBQUAMIHKMQswCQYDVQQG
    // EwJVUzEQMA4GA1UECBMHQXJpem9uYTETMBEGA1UEBxMKU2NvdHRzZGFsZTEaMBgG
    // ...

    cert.loadFromFile("/Users/chilkat/testData/cer/chilkat_base64.cer") catch {
        std.debug.print("{s}\n", .{try cert.getLastErrorText(alloc)});
        return;
    };

    // DN = "Distinguished Name"
    std.debug.print("SubjectDN:{s}\n", .{try cert.getSubjectDN(alloc)});

    std.debug.print("Common Name:{s}\n", .{try cert.getSubjectCN(alloc)});
    std.debug.print("Issuer Common Name:{s}\n", .{try cert.getIssuerCN(alloc)});

    std.debug.print("Serial Number:{s}\n", .{try cert.getSerialNumber(alloc)});
}