1 files changed, 306 insertions, 0 deletions
diff --git a/vendor/openssl/src/pkcs5.rs b/vendor/openssl/src/pkcs5.rs
new file mode 100644
index 000000000..c15ce4776
--- /dev/null
+++ b/vendor/openssl/src/pkcs5.rs
@@ -0,0 +1,306 @@
+use libc::c_int;
+use std::ptr;
+
+use crate::cvt;
+use crate::error::ErrorStack;
+use crate::hash::MessageDigest;
+use crate::symm::Cipher;
+use openssl_macros::corresponds;
+
+#[derive(Clone, Eq, PartialEq, Hash, Debug)]
+pub struct KeyIvPair {
+    pub key: Vec<u8>,
+    pub iv: Option<Vec<u8>>,
+}
+
+/// Derives a key and an IV from various parameters.
+///
+/// If specified, `salt` must be 8 bytes in length.
+///
+/// If the total key and IV length is less than 16 bytes and MD5 is used then
+/// the algorithm is compatible with the key derivation algorithm from PKCS#5
+/// v1.5 or PBKDF1 from PKCS#5 v2.0.
+///
+/// New applications should not use this and instead use
+/// `pbkdf2_hmac` or another more modern key derivation algorithm.
+#[corresponds(EVP_BytesToKey)]
+#[allow(clippy::useless_conversion)]
+pub fn bytes_to_key(
+    cipher: Cipher,
+    digest: MessageDigest,
+    data: &[u8],
+    salt: Option<&[u8]>,
+    count: i32,
+) -> Result<KeyIvPair, ErrorStack> {
+    unsafe {
+        assert!(data.len() <= c_int::max_value() as usize);
+        let salt_ptr = match salt {
+            Some(salt) => {
+                assert_eq!(salt.len(), ffi::PKCS5_SALT_LEN as usize);
+                salt.as_ptr()
+            }
+            None => ptr::null(),
+        };
+
+        ffi::init();
+
+        let mut iv = cipher.iv_len().map(|l| vec![0; l]);
+
+        let cipher = cipher.as_ptr();
+        let digest = digest.as_ptr();
+
+        let len = cvt(ffi::EVP_BytesToKey(
+            cipher,
+            digest,
+            salt_ptr,
+            ptr::null(),
+            data.len() as c_int,
+            count.into(),
+            ptr::null_mut(),
+            ptr::null_mut(),
+        ))?;
+
+        let mut key = vec![0; len as usize];
+        let iv_ptr = iv
+            .as_mut()
+            .map(|v| v.as_mut_ptr())
+            .unwrap_or(ptr::null_mut());
+
+        cvt(ffi::EVP_BytesToKey(
+            cipher,
+            digest,
+            salt_ptr,
+            data.as_ptr(),
+            data.len() as c_int,
+            count as c_int,
+            key.as_mut_ptr(),
+            iv_ptr,
+        ))?;
+
+        Ok(KeyIvPair { key, iv })
+    }
+}
+
+/// Derives a key from a password and salt using the PBKDF2-HMAC algorithm with a digest function.
+#[corresponds(PKCS5_PBKDF2_HMAC)]
+pub fn pbkdf2_hmac(
+    pass: &[u8],
+    salt: &[u8],
+    iter: usize,
+    hash: MessageDigest,
+    key: &mut [u8],
+) -> Result<(), ErrorStack> {
+    unsafe {
+        assert!(pass.len() <= c_int::max_value() as usize);
+        assert!(salt.len() <= c_int::max_value() as usize);
+        assert!(key.len() <= c_int::max_value() as usize);
+
+        ffi::init();
+        cvt(ffi::PKCS5_PBKDF2_HMAC(
+            pass.as_ptr() as *const _,
+            pass.len() as c_int,
+            salt.as_ptr(),
+            salt.len() as c_int,
+            iter as c_int,
+            hash.as_ptr(),
+            key.len() as c_int,
+            key.as_mut_ptr(),
+        ))
+        .map(|_| ())
+    }
+}
+
+/// Derives a key from a password and salt using the scrypt algorithm.
+///
+/// Requires OpenSSL 1.1.0 or newer.
+#[corresponds(EVP_PBE_scrypt)]
+#[cfg(any(ossl110))]
+pub fn scrypt(
+    pass: &[u8],
+    salt: &[u8],
+    n: u64,
+    r: u64,
+    p: u64,
+    maxmem: u64,
+    key: &mut [u8],
+) -> Result<(), ErrorStack> {
+    unsafe {
+        ffi::init();
+        cvt(ffi::EVP_PBE_scrypt(
+            pass.as_ptr() as *const _,
+            pass.len(),
+            salt.as_ptr() as *const _,
+            salt.len(),
+            n,
+            r,
+            p,
+            maxmem,
+            key.as_mut_ptr() as *mut _,
+            key.len(),
+        ))
+        .map(|_| ())
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use crate::hash::MessageDigest;
+    use crate::symm::Cipher;
+
+    // Test vectors from
+    // https://git.lysator.liu.se/nettle/nettle/blob/nettle_3.1.1_release_20150424/testsuite/pbkdf2-test.c
+    #[test]
+    fn pbkdf2_hmac_sha256() {
+        let mut buf = [0; 16];
+
+        super::pbkdf2_hmac(b"passwd", b"salt", 1, MessageDigest::sha256(), &mut buf).unwrap();
+        assert_eq!(
+            buf,
+            &[
+                0x55_u8, 0xac_u8, 0x04_u8, 0x6e_u8, 0x56_u8, 0xe3_u8, 0x08_u8, 0x9f_u8, 0xec_u8,
+                0x16_u8, 0x91_u8, 0xc2_u8, 0x25_u8, 0x44_u8, 0xb6_u8, 0x05_u8,
+            ][..]
+        );
+
+        super::pbkdf2_hmac(
+            b"Password",
+            b"NaCl",
+            80000,
+            MessageDigest::sha256(),
+            &mut buf,
+        )
+        .unwrap();
+        assert_eq!(
+            buf,
+            &[
+                0x4d_u8, 0xdc_u8, 0xd8_u8, 0xf6_u8, 0x0b_u8, 0x98_u8, 0xbe_u8, 0x21_u8, 0x83_u8,
+                0x0c_u8, 0xee_u8, 0x5e_u8, 0xf2_u8, 0x27_u8, 0x01_u8, 0xf9_u8,
+            ][..]
+        );
+    }
+
+    // Test vectors from
+    // https://git.lysator.liu.se/nettle/nettle/blob/nettle_3.1.1_release_20150424/testsuite/pbkdf2-test.c
+    #[test]
+    fn pbkdf2_hmac_sha512() {
+        let mut buf = [0; 64];
+
+        super::pbkdf2_hmac(b"password", b"NaCL", 1, MessageDigest::sha512(), &mut buf).unwrap();
+        assert_eq!(
+            &buf[..],
+            &[
+                0x73_u8, 0xde_u8, 0xcf_u8, 0xa5_u8, 0x8a_u8, 0xa2_u8, 0xe8_u8, 0x4f_u8, 0x94_u8,
+                0x77_u8, 0x1a_u8, 0x75_u8, 0x73_u8, 0x6b_u8, 0xb8_u8, 0x8b_u8, 0xd3_u8, 0xc7_u8,
+                0xb3_u8, 0x82_u8, 0x70_u8, 0xcf_u8, 0xb5_u8, 0x0c_u8, 0xb3_u8, 0x90_u8, 0xed_u8,
+                0x78_u8, 0xb3_u8, 0x05_u8, 0x65_u8, 0x6a_u8, 0xf8_u8, 0x14_u8, 0x8e_u8, 0x52_u8,
+                0x45_u8, 0x2b_u8, 0x22_u8, 0x16_u8, 0xb2_u8, 0xb8_u8, 0x09_u8, 0x8b_u8, 0x76_u8,
+                0x1f_u8, 0xc6_u8, 0x33_u8, 0x60_u8, 0x60_u8, 0xa0_u8, 0x9f_u8, 0x76_u8, 0x41_u8,
+                0x5e_u8, 0x9f_u8, 0x71_u8, 0xea_u8, 0x47_u8, 0xf9_u8, 0xe9_u8, 0x06_u8, 0x43_u8,
+                0x06_u8,
+            ][..]
+        );
+
+        super::pbkdf2_hmac(
+            b"pass\0word",
+            b"sa\0lt",
+            1,
+            MessageDigest::sha512(),
+            &mut buf,
+        )
+        .unwrap();
+        assert_eq!(
+            &buf[..],
+            &[
+                0x71_u8, 0xa0_u8, 0xec_u8, 0x84_u8, 0x2a_u8, 0xbd_u8, 0x5c_u8, 0x67_u8, 0x8b_u8,
+                0xcf_u8, 0xd1_u8, 0x45_u8, 0xf0_u8, 0x9d_u8, 0x83_u8, 0x52_u8, 0x2f_u8, 0x93_u8,
+                0x36_u8, 0x15_u8, 0x60_u8, 0x56_u8, 0x3c_u8, 0x4d_u8, 0x0d_u8, 0x63_u8, 0xb8_u8,
+                0x83_u8, 0x29_u8, 0x87_u8, 0x10_u8, 0x90_u8, 0xe7_u8, 0x66_u8, 0x04_u8, 0xa4_u8,
+                0x9a_u8, 0xf0_u8, 0x8f_u8, 0xe7_u8, 0xc9_u8, 0xf5_u8, 0x71_u8, 0x56_u8, 0xc8_u8,
+                0x79_u8, 0x09_u8, 0x96_u8, 0xb2_u8, 0x0f_u8, 0x06_u8, 0xbc_u8, 0x53_u8, 0x5e_u8,
+                0x5a_u8, 0xb5_u8, 0x44_u8, 0x0d_u8, 0xf7_u8, 0xe8_u8, 0x78_u8, 0x29_u8, 0x6f_u8,
+                0xa7_u8,
+            ][..]
+        );
+
+        super::pbkdf2_hmac(
+            b"passwordPASSWORDpassword",
+            b"salt\0\0\0",
+            50,
+            MessageDigest::sha512(),
+            &mut buf,
+        )
+        .unwrap();
+        assert_eq!(
+            &buf[..],
+            &[
+                0x01_u8, 0x68_u8, 0x71_u8, 0xa4_u8, 0xc4_u8, 0xb7_u8, 0x5f_u8, 0x96_u8, 0x85_u8,
+                0x7f_u8, 0xd2_u8, 0xb9_u8, 0xf8_u8, 0xca_u8, 0x28_u8, 0x02_u8, 0x3b_u8, 0x30_u8,
+                0xee_u8, 0x2a_u8, 0x39_u8, 0xf5_u8, 0xad_u8, 0xca_u8, 0xc8_u8, 0xc9_u8, 0x37_u8,
+                0x5f_u8, 0x9b_u8, 0xda_u8, 0x1c_u8, 0xcd_u8, 0x1b_u8, 0x6f_u8, 0x0b_u8, 0x2f_u8,
+                0xc3_u8, 0xad_u8, 0xda_u8, 0x50_u8, 0x54_u8, 0x12_u8, 0xe7_u8, 0x9d_u8, 0x89_u8,
+                0x00_u8, 0x56_u8, 0xc6_u8, 0x2e_u8, 0x52_u8, 0x4c_u8, 0x7d_u8, 0x51_u8, 0x15_u8,
+                0x4b_u8, 0x1a_u8, 0x85_u8, 0x34_u8, 0x57_u8, 0x5b_u8, 0xd0_u8, 0x2d_u8, 0xee_u8,
+                0x39_u8,
+            ][..]
+        );
+    }
+
+    #[test]
+    fn bytes_to_key() {
+        let salt = [16_u8, 34_u8, 19_u8, 23_u8, 141_u8, 4_u8, 207_u8, 221_u8];
+
+        let data = [
+            143_u8, 210_u8, 75_u8, 63_u8, 214_u8, 179_u8, 155_u8, 241_u8, 242_u8, 31_u8, 154_u8,
+            56_u8, 198_u8, 145_u8, 192_u8, 64_u8, 2_u8, 245_u8, 167_u8, 220_u8, 55_u8, 119_u8,
+            233_u8, 136_u8, 139_u8, 27_u8, 71_u8, 242_u8, 119_u8, 175_u8, 65_u8, 207_u8,
+        ];
+
+        let expected_key = vec![
+            249_u8, 115_u8, 114_u8, 97_u8, 32_u8, 213_u8, 165_u8, 146_u8, 58_u8, 87_u8, 234_u8,
+            3_u8, 43_u8, 250_u8, 97_u8, 114_u8, 26_u8, 98_u8, 245_u8, 246_u8, 238_u8, 177_u8,
+            229_u8, 161_u8, 183_u8, 224_u8, 174_u8, 3_u8, 6_u8, 244_u8, 236_u8, 255_u8,
+        ];
+        let expected_iv = vec![
+            4_u8, 223_u8, 153_u8, 219_u8, 28_u8, 142_u8, 234_u8, 68_u8, 227_u8, 69_u8, 98_u8,
+            107_u8, 208_u8, 14_u8, 236_u8, 60_u8,
+        ];
+
+        assert_eq!(
+            super::bytes_to_key(
+                Cipher::aes_256_cbc(),
+                MessageDigest::sha1(),
+                &data,
+                Some(&salt),
+                1,
+            )
+            .unwrap(),
+            super::KeyIvPair {
+                key: expected_key,
+                iv: Some(expected_iv),
+            }
+        );
+    }
+
+    #[test]
+    #[cfg(any(ossl110))]
+    fn scrypt() {
+        let pass = "pleaseletmein";
+        let salt = "SodiumChloride";
+        let expected =
+            "7023bdcb3afd7348461c06cd81fd38ebfda8fbba904f8e3ea9b543f6545da1f2d5432955613\
+             f0fcf62d49705242a9af9e61e85dc0d651e40dfcf017b45575887";
+
+        let mut actual = [0; 64];
+        super::scrypt(
+            pass.as_bytes(),
+            salt.as_bytes(),
+            16384,
+            8,
+            1,
+            0,
+            &mut actual,
+        )
+        .unwrap();
+        assert_eq!(hex::encode(&actual[..]), expected);
+    }
+}