tyler/proxmox-backup
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src/backup/crypt_config.rs - generate_rsa_encoded_key: store as json

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Use the KeyConfig serialization with kdf = None.
This commit is contained in:
Dietmar Maurer 2019-06-26 07:32:34 +02:00
parent 3031e44c58
commit bb8231409e
2 changed files with 34 additions and 23 deletions
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8
src/backup/crypt_config.rs
View File

@ -12,6 +12,7 @@ use openssl::pkcs5::pbkdf2_hmac;
use openssl::hash::MessageDigest;
use openssl::symm::{decrypt_aead, Cipher, Crypter, Mode};
use std::io::Write;
use chrono::{Local, TimeZone, DateTime};
/// Encryption Configuration with secret key
///
@ -171,10 +172,15 @@ impl CryptConfig {
pub fn generate_rsa_encoded_key(
&self,
rsa: openssl::rsa::Rsa<openssl::pkey::Public>,
created: DateTime<Local>,
) -> Result<Vec<u8>, Error> {
let modified = Local.timestamp(Local::now().timestamp(), 0);
let key_config = super::KeyConfig { kdf: None, created, modified, data: self.enc_key.to_vec() };
let data = serde_json::to_string(&key_config)?.as_bytes().to_vec();
let mut buffer = vec![0u8; rsa.size() as usize];
let len = rsa.public_encrypt(&self.enc_key, &mut buffer, openssl::rsa::Padding::PKCS1)?;
let len = rsa.public_encrypt(&data, &mut buffer, openssl::rsa::Padding::PKCS1)?;
if len != buffer.len() {
bail!("got unexpected length from rsa.public_encrypt().");
}

49
src/bin/proxmox-backup-client.rs
View File

@ -470,11 +470,22 @@ fn create_backup(
println!("Client name: {}", tools::nodename());
println!("Start Time: {}", backup_time.to_rfc3339());
let crypt_config = match keyfile {
None => None,
let (crypt_config, rsa_encrypted_key) = match keyfile {
None => (None, None),
Some(path) => {
let (key, _) = load_and_decrtypt_key(&path, get_encryption_key_password)?;
Some(Arc::new(CryptConfig::new(key)?))
let (key, created) = load_and_decrtypt_key(&path, get_encryption_key_password)?;
let crypt_config = CryptConfig::new(key)?;
let path = master_pubkey_path()?;
if path.exists() {
let pem_data = proxmox_backup::tools::file_get_contents(&path)?;
let rsa = openssl::rsa::Rsa::public_key_from_pem(&pem_data)?;
let enc_key = crypt_config.generate_rsa_encoded_key(rsa, created)?;
(Some(Arc::new(crypt_config)), Some(enc_key))
} else {
(Some(Arc::new(crypt_config)), None)
}
}
};
@ -513,25 +524,19 @@ fn create_backup(
}
}
if let Some(crypt_config) = crypt_config {
let path = master_pubkey_path()?;
if path.exists() {
let pem_data = proxmox_backup::tools::file_get_contents(&path)?;
let rsa = openssl::rsa::Rsa::public_key_from_pem(&pem_data)?;
let enc_key = crypt_config.generate_rsa_encoded_key(rsa)?;
let target = "rsa-encrypted.key";
println!("Upload RSA encoded key to '{:?}' as {}", repo, target);
client.upload_blob_from_data(enc_key, target, None, false).wait()?;
if let Some(rsa_encrypted_key) = rsa_encrypted_key {
let target = "rsa-encrypted.key";
println!("Upload RSA encoded key to '{:?}' as {}", repo, target);
client.upload_blob_from_data(rsa_encrypted_key, target, None, false).wait()?;
// openssl rsautl -decrypt -inkey master-private.pem -in rsa-encrypted.key -out t
/*
let mut buffer2 = vec![0u8; rsa.size() as usize];
let pem_data = proxmox_backup::tools::file_get_contents("master-private.pem")?;
let rsa = openssl::rsa::Rsa::private_key_from_pem(&pem_data)?;
let len = rsa.private_decrypt(&buffer, &mut buffer2, openssl::rsa::Padding::PKCS1)?;
println!("TEST {} {:?}", len, buffer2);
*/
}
// openssl rsautl -decrypt -inkey master-private.pem -in rsa-encrypted.key -out t
/*
let mut buffer2 = vec![0u8; rsa.size() as usize];
let pem_data = proxmox_backup::tools::file_get_contents("master-private.pem")?;
let rsa = openssl::rsa::Rsa::private_key_from_pem(&pem_data)?;
let len = rsa.private_decrypt(&buffer, &mut buffer2, openssl::rsa::Padding::PKCS1)?;
println!("TEST {} {:?}", len, buffer2);
*/
}
client.finish().wait()?;