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Load a Private Key from a PEM File

Demonstrates the Chilkat PrivateKey.LoadPemFile method, which loads a private key from a PEM file. The only argument is the file path. It cannot load a password-protected key — use LoadEncryptedPemFile for that.

Note: The file path is relative to the application's current working directory. Absolute paths may also be used. Supply the path to your own key file.

Background: The file-based counterpart to LoadPem, for the common case where the key lives in a .pem file. Like LoadPem it handles only unencrypted PEM; if the file is encrypted the load fails, signaling that you need the password-aware loader. When the exact on-disk format is uncertain, LoadAnyFormatFile auto-detects it.

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

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

    // Demonstrates the PrivateKey.LoadPemFile method, which loads a private key from a PEM file.  The
    // only argument is the file path.  It cannot load a password-protected key -- use
    // LoadEncryptedPemFile for that.

    const priv_key = try chilkat.PrivateKey.init();
    defer priv_key.deinit();

    priv_key.loadPemFile("qa_data/private_unencrypted.pem") catch {
        std.debug.print("{s}\n", .{try priv_key.getLastErrorText(alloc)});
        return;
    };

    std.debug.print("Loaded a {s} private key.\n", .{try priv_key.getKeyType(alloc)});
}