Rust Requires Chilkat v11.0.0+

RSA Signature SHA256withRSA, iso-8859-1, base64

See more RSA Examples

RSA sign the iso-8859-1 byte representation of a string with SHA256withRSA, and return the signature in the base64 encoding. Rust

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

// This example will duplicate the following Java code:
// 
// Signature sign = Signature.getInstance("SHA256withRSA");
// sign.initSign(privateKey);
// sign.update(original.getBytes(Charset.forName("ISO-8859-1")));
// 
// ...
// byte[] resultado = sign.sign();
// sello = encodeByteArrayToBase64(resultado);
// 

// Load an RSA private key for signing.
// You can load any format file.  This example loads a .pem, but you can provide path to any type of file holding a private key.
let priv_key = chilkat::PrivateKey::new();
if priv_key.load_any_format_file("qa_data/pem/rsa_passwd.pem", "passwd").is_err() {
    println!("{}", priv_key.last_error_text());
    return;
}

let rsa = chilkat::Rsa::new();
let _ = rsa.use_private_key(&priv_key);

let original_data = "This is the string to be hashed an RSA signed.".to_string();

// Indicate that we want the iso-8859-1 byte representation of the string to be signed
rsa.set_charset("iso-8859-1");

// We want the RSA signature in base64 format
rsa.set_encoding_mode("base64");

let sig_base64 = rsa.sign_string_enc(&original_data, "sha256").unwrap_or_default();
println!("{}", sig_base64);