Adding upstream version 0.70.1+ds1.upstream/0.70.1+ds1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 319 insertions, 0 deletions

diff --git a/vendor/openssl/src/aes.rs b/vendor/openssl/src/aes.rs
new file mode 100644
index 0000000..cbc4999
--- /dev/null
+++ b/vendor/openssl/src/aes.rs
@@ -0,0 +1,319 @@
+//! Low level AES IGE and key wrapping functionality
+//!
+//! AES ECB, CBC, XTS, CTR, CFB, GCM and other conventional symmetric encryption
+//! modes are found in [`symm`].  This is the implementation of AES IGE and key wrapping
+//!
+//! Advanced Encryption Standard (AES) provides symmetric key cipher that
+//! the same key is used to encrypt and decrypt data.  This implementation
+//! uses 128, 192, or 256 bit keys.  This module provides functions to
+//! create a new key with [`new_encrypt`] and perform an encryption/decryption
+//! using that key with [`aes_ige`].
+//!
+//! [`new_encrypt`]: struct.AesKey.html#method.new_encrypt
+//! [`aes_ige`]: fn.aes_ige.html
+//!
+//! The [`symm`] module should be used in preference to this module in most cases.
+//! The IGE block cipher is a non-traditional cipher mode.  More traditional AES
+//! encryption methods are found in the [`Crypter`] and [`Cipher`] structs.
+//!
+//! [`symm`]: ../symm/index.html
+//! [`Crypter`]: ../symm/struct.Crypter.html
+//! [`Cipher`]: ../symm/struct.Cipher.html
+//!
+//! # Examples
+
+#![cfg_attr(
+    all(not(boringssl), not(osslconf = "OPENSSL_NO_DEPRECATED_3_0")),
+    doc = r#"\
+## AES IGE
+```rust
+use openssl::aes::{AesKey, aes_ige};
+use openssl::symm::Mode;
+
+let key = b"\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B\x0C\x0D\x0E\x0F";
+let plaintext = b"\x12\x34\x56\x78\x90\x12\x34\x56\x12\x34\x56\x78\x90\x12\x34\x56";
+let mut iv = *b"\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B\x0C\x0D\x0E\x0F\
+                \x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1A\x1B\x1C\x1D\x1E\x1F";
+
+ let key = AesKey::new_encrypt(key).unwrap();
+ let mut output = [0u8; 16];
+ aes_ige(plaintext, &mut output, &key, &mut iv, Mode::Encrypt);
+ assert_eq!(output, *b"\xa6\xad\x97\x4d\x5c\xea\x1d\x36\xd2\xf3\x67\x98\x09\x07\xed\x32");
+```"#
+)]
+
+//!
+//! ## Key wrapping
+//! ```rust
+//! use openssl::aes::{AesKey, unwrap_key, wrap_key};
+//!
+//! let kek = b"\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B\x0C\x0D\x0E\x0F";
+//! let key_to_wrap = b"\x00\x11\x22\x33\x44\x55\x66\x77\x88\x99\xAA\xBB\xCC\xDD\xEE\xFF";
+//!
+//! let enc_key = AesKey::new_encrypt(kek).unwrap();
+//! let mut ciphertext = [0u8; 24];
+//! wrap_key(&enc_key, None, &mut ciphertext, &key_to_wrap[..]).unwrap();
+//! let dec_key = AesKey::new_decrypt(kek).unwrap();
+//! let mut orig_key = [0u8; 16];
+//! unwrap_key(&dec_key, None, &mut orig_key, &ciphertext[..]).unwrap();
+//!
+//! assert_eq!(&orig_key[..], &key_to_wrap[..]);
+//! ```
+//!
+use cfg_if::cfg_if;
+use libc::{c_int, c_uint};
+use std::mem::MaybeUninit;
+use std::ptr;
+
+#[cfg(not(boringssl))]
+use crate::symm::Mode;
+use openssl_macros::corresponds;
+
+/// Provides Error handling for parsing keys.
+#[derive(Debug)]
+pub struct KeyError(());
+
+/// The key used to encrypt or decrypt cipher blocks.
+pub struct AesKey(ffi::AES_KEY);
+
+cfg_if! {
+    if #[cfg(boringssl)] {
+        type AesBitType = c_uint;
+        type AesSizeType = usize;
+    } else {
+        type AesBitType = c_int;
+        type AesSizeType = c_uint;
+    }
+}
+
+impl AesKey {
+    /// Prepares a key for encryption.
+    ///
+    /// # Failure
+    ///
+    /// Returns an error if the key is not 128, 192, or 256 bits.
+    #[corresponds(AES_set_encrypt_key)]
+    pub fn new_encrypt(key: &[u8]) -> Result<AesKey, KeyError> {
+        unsafe {
+            assert!(key.len() <= c_int::max_value() as usize / 8);
+
+            let mut aes_key = MaybeUninit::uninit();
+            let r = ffi::AES_set_encrypt_key(
+                key.as_ptr() as *const _,
+                key.len() as AesBitType * 8,
+                aes_key.as_mut_ptr(),
+            );
+            if r == 0 {
+                Ok(AesKey(aes_key.assume_init()))
+            } else {
+                Err(KeyError(()))
+            }
+        }
+    }
+
+    /// Prepares a key for decryption.
+    ///
+    /// # Failure
+    ///
+    /// Returns an error if the key is not 128, 192, or 256 bits.
+    #[corresponds(AES_set_decrypt_key)]
+    pub fn new_decrypt(key: &[u8]) -> Result<AesKey, KeyError> {
+        unsafe {
+            assert!(key.len() <= c_int::max_value() as usize / 8);
+
+            let mut aes_key = MaybeUninit::uninit();
+            let r = ffi::AES_set_decrypt_key(
+                key.as_ptr() as *const _,
+                key.len() as AesBitType * 8,
+                aes_key.as_mut_ptr(),
+            );
+
+            if r == 0 {
+                Ok(AesKey(aes_key.assume_init()))
+            } else {
+                Err(KeyError(()))
+            }
+        }
+    }
+}
+
+/// Performs AES IGE encryption or decryption
+///
+/// AES IGE (Infinite Garble Extension) is a form of AES block cipher utilized in
+/// OpenSSL.  Infinite Garble refers to propagating forward errors.  IGE, like other
+/// block ciphers implemented for AES requires an initialization vector.  The IGE mode
+/// allows a stream of blocks to be encrypted or decrypted without having the entire
+/// plaintext available.  For more information, visit [AES IGE Encryption].
+///
+/// This block cipher uses 16 byte blocks.  The rust implementation will panic
+/// if the input or output does not meet this 16-byte boundary.  Attention must
+/// be made in this low level implementation to pad the value to the 128-bit boundary.
+///
+/// [AES IGE Encryption]: http://www.links.org/files/openssl-ige.pdf
+///
+/// # Panics
+///
+/// Panics if `in_` is not the same length as `out`, if that length is not a multiple of 16, or if
+/// `iv` is not at least 32 bytes.
+#[cfg(not(boringssl))]
+#[cfg(not(osslconf = "OPENSSL_NO_DEPRECATED_3_0"))]
+#[corresponds(AES_ige_encrypt)]
+pub fn aes_ige(in_: &[u8], out: &mut [u8], key: &AesKey, iv: &mut [u8], mode: Mode) {
+    unsafe {
+        assert!(in_.len() == out.len());
+        assert!(in_.len() % ffi::AES_BLOCK_SIZE as usize == 0);
+        assert!(iv.len() >= ffi::AES_BLOCK_SIZE as usize * 2);
+
+        let mode = match mode {
+            Mode::Encrypt => ffi::AES_ENCRYPT,
+            Mode::Decrypt => ffi::AES_DECRYPT,
+        };
+        ffi::AES_ige_encrypt(
+            in_.as_ptr() as *const _,
+            out.as_mut_ptr() as *mut _,
+            in_.len(),
+            &key.0,
+            iv.as_mut_ptr() as *mut _,
+            mode,
+        );
+    }
+}
+
+/// Wrap a key, according to [RFC 3394](https://tools.ietf.org/html/rfc3394)
+///
+/// * `key`: The key-encrypting-key to use. Must be a encrypting key
+/// * `iv`: The IV to use. You must use the same IV for both wrapping and unwrapping
+/// * `out`: The output buffer to store the ciphertext
+/// * `in_`: The input buffer, storing the key to be wrapped
+///
+/// Returns the number of bytes written into `out`
+///
+/// # Panics
+///
+/// Panics if either `out` or `in_` do not have sizes that are a multiple of 8, or if
+/// `out` is not 8 bytes longer than `in_`
+#[corresponds(AES_wrap_key)]
+pub fn wrap_key(
+    key: &AesKey,
+    iv: Option<[u8; 8]>,
+    out: &mut [u8],
+    in_: &[u8],
+) -> Result<usize, KeyError> {
+    unsafe {
+        assert!(out.len() >= in_.len() + 8); // Ciphertext is 64 bits longer (see 2.2.1)
+
+        let written = ffi::AES_wrap_key(
+            &key.0 as *const _ as *mut _, // this is safe, the implementation only uses the key as a const pointer.
+            iv.as_ref()
+                .map_or(ptr::null(), |iv| iv.as_ptr() as *const _),
+            out.as_ptr() as *mut _,
+            in_.as_ptr() as *const _,
+            in_.len() as AesSizeType,
+        );
+        if written <= 0 {
+            Err(KeyError(()))
+        } else {
+            Ok(written as usize)
+        }
+    }
+}
+
+/// Unwrap a key, according to [RFC 3394](https://tools.ietf.org/html/rfc3394)
+///
+/// * `key`: The key-encrypting-key to decrypt the wrapped key. Must be a decrypting key
+/// * `iv`: The same IV used for wrapping the key
+/// * `out`: The buffer to write the unwrapped key to
+/// * `in_`: The input ciphertext
+///
+/// Returns the number of bytes written into `out`
+///
+/// # Panics
+///
+/// Panics if either `out` or `in_` do not have sizes that are a multiple of 8, or
+/// if `in_` is not 8 bytes longer than `out`
+#[corresponds(AES_unwrap_key)]
+pub fn unwrap_key(
+    key: &AesKey,
+    iv: Option<[u8; 8]>,
+    out: &mut [u8],
+    in_: &[u8],
+) -> Result<usize, KeyError> {
+    unsafe {
+        assert!(out.len() + 8 <= in_.len());
+
+        let written = ffi::AES_unwrap_key(
+            &key.0 as *const _ as *mut _, // this is safe, the implementation only uses the key as a const pointer.
+            iv.as_ref()
+                .map_or(ptr::null(), |iv| iv.as_ptr() as *const _),
+            out.as_ptr() as *mut _,
+            in_.as_ptr() as *const _,
+            in_.len() as AesSizeType,
+        );
+
+        if written <= 0 {
+            Err(KeyError(()))
+        } else {
+            Ok(written as usize)
+        }
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use hex::FromHex;
+
+    use super::*;
+    #[cfg(not(boringssl))]
+    use crate::symm::Mode;
+
+    // From https://www.mgp25.com/AESIGE/
+    #[test]
+    #[cfg(not(boringssl))]
+    #[cfg(not(osslconf = "OPENSSL_NO_DEPRECATED_3_0"))]
+    fn ige_vector_1() {
+        let raw_key = "000102030405060708090A0B0C0D0E0F";
+        let raw_iv = "000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F";
+        let raw_pt = "0000000000000000000000000000000000000000000000000000000000000000";
+        let raw_ct = "1A8519A6557BE652E9DA8E43DA4EF4453CF456B4CA488AA383C79C98B34797CB";
+
+        let key = AesKey::new_encrypt(&Vec::from_hex(raw_key).unwrap()).unwrap();
+        let mut iv = Vec::from_hex(raw_iv).unwrap();
+        let pt = Vec::from_hex(raw_pt).unwrap();
+        let ct = Vec::from_hex(raw_ct).unwrap();
+
+        let mut ct_actual = vec![0; ct.len()];
+        aes_ige(&pt, &mut ct_actual, &key, &mut iv, Mode::Encrypt);
+        assert_eq!(ct_actual, ct);
+
+        let key = AesKey::new_decrypt(&Vec::from_hex(raw_key).unwrap()).unwrap();
+        let mut iv = Vec::from_hex(raw_iv).unwrap();
+        let mut pt_actual = vec![0; pt.len()];
+        aes_ige(&ct, &mut pt_actual, &key, &mut iv, Mode::Decrypt);
+        assert_eq!(pt_actual, pt);
+    }
+
+    // from the RFC https://tools.ietf.org/html/rfc3394#section-2.2.3
+    #[test]
+    fn test_wrap_unwrap() {
+        let raw_key = Vec::from_hex("000102030405060708090A0B0C0D0E0F").unwrap();
+        let key_data = Vec::from_hex("00112233445566778899AABBCCDDEEFF").unwrap();
+        let expected_ciphertext =
+            Vec::from_hex("1FA68B0A8112B447AEF34BD8FB5A7B829D3E862371D2CFE5").unwrap();
+
+        let enc_key = AesKey::new_encrypt(&raw_key).unwrap();
+        let mut wrapped = [0; 24];
+        assert_eq!(
+            wrap_key(&enc_key, None, &mut wrapped, &key_data).unwrap(),
+            24
+        );
+        assert_eq!(&wrapped[..], &expected_ciphertext[..]);
+
+        let dec_key = AesKey::new_decrypt(&raw_key).unwrap();
+        let mut unwrapped = [0; 16];
+        assert_eq!(
+            unwrap_key(&dec_key, None, &mut unwrapped, &wrapped).unwrap(),
+            16
+        );
+        assert_eq!(&unwrapped[..], &key_data[..]);
+    }
+}