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Pass passphrase to dc_pgp_symm_{en,de}crypt as &str

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This commit is contained in:
Alexander Krotov
2019-09-10 13:49:34 +03:00
committed by holger krekel
parent 3d61c06ea9
commit f1c026c5ec
2 changed files with 8 additions and 20 deletions
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18
src/pgp.rs
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@@ -1,6 +1,5 @@
use std::collections::HashSet;
use std::convert::TryInto;
use std::ffi::CStr;
use std::io::Cursor;
use std::ptr;
@@ -274,32 +273,25 @@ pub fn dc_pgp_pk_decrypt(
}
/// Symmetric encryption.
pub fn dc_pgp_symm_encrypt(passphrase: *const libc::c_char, plain: &[u8]) -> Option<String> {
assert!(!passphrase.is_null(), "invalid passphrase");
let pw = unsafe { CStr::from_ptr(passphrase).to_str().unwrap() };
pub fn dc_pgp_symm_encrypt(passphrase: &str, plain: &[u8]) -> Option<String> {
let mut rng = thread_rng();
let lit_msg = Message::new_literal_bytes("", plain);
let s2k = StringToKey::new_default(&mut rng);
let msg = lit_msg.encrypt_with_password(&mut rng, s2k, Default::default(), || pw.into());
let msg =
lit_msg.encrypt_with_password(&mut rng, s2k, Default::default(), || passphrase.into());
msg.and_then(|msg| msg.to_armored_string(None)).ok()
}
/// Symmetric decryption.
pub fn dc_pgp_symm_decrypt(passphrase: *const libc::c_char, ctext: &[u8]) -> Option<Vec<u8>> {
assert!(!passphrase.is_null(), "invalid passphrase");
let pw = unsafe { CStr::from_ptr(passphrase).to_str().unwrap() };
pub fn dc_pgp_symm_decrypt(passphrase: &str, ctext: &[u8]) -> Option<Vec<u8>> {
let enc_msg = Message::from_bytes(Cursor::new(ctext));
enc_msg
.and_then(|msg| {
let mut decryptor = msg
.decrypt_with_password(|| pw.into())
.decrypt_with_password(|| passphrase.into())
.expect("failed decryption");
decryptor.next().expect("no message")
})