Rust

Extract PKCS7 from MIME and Decrypt

See more MIME Examples

Extracts the base64-encoded PKCS7 body of a MIME message to a file, and then decrypts using Chilkat Crypt2. Rust

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

let mime = chilkat::Mime::new();

if mime.load_mime_file("c:/aaworkarea/EmailInBytes.txt").is_err() {
    println!("{}", mime.last_error_text());
    return;
}

if mime.save_body("c:/aaworkarea/smime.p7m").is_err() {
    println!("{}", mime.last_error_text());
    return;
}

let crypt = chilkat::Crypt2::new();

if crypt.add_pfx_source_file("c:/aaworkarea/my.pfx", "pfxPassword").is_err() {
    println!("{}", crypt.last_error_text());
    return;
}

// Indicate the public-key (PKCS7) encryption/decryption should be used:
crypt.set_crypt_algorithm("pki");

let in_path = "c:/aaworkarea/smime.p7m".to_string();
let out_path = "c:/aaworkarea/decrypted.dat".to_string();

if crypt.ck_decrypt_file(&in_path, &out_path).is_err() {
    println!("{}", crypt.last_error_text());
    return;
}

println!("Success.");