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authorSteven Fackler <[email protected]>2016-11-05 20:06:50 -0700
committerSteven Fackler <[email protected]>2016-11-05 20:06:50 -0700
commita0b56c437803a08413755928040a0970a93a7b83 (patch)
tree0f21848301b62d6078eafaee10e513df4163087b /openssl/src/crypto/hash.rs
parentMerge branch 'release-v0.8.3' into release (diff)
parentRelease v0.9.0 (diff)
downloadrust-openssl-0.9.0.tar.xz
rust-openssl-0.9.0.zip
Merge branch 'release-v0.9.0' into releasev0.9.0
Diffstat (limited to 'openssl/src/crypto/hash.rs')
-rw-r--r--openssl/src/crypto/hash.rs339
1 files changed, 0 insertions, 339 deletions
diff --git a/openssl/src/crypto/hash.rs b/openssl/src/crypto/hash.rs
deleted file mode 100644
index 207a55f5..00000000
--- a/openssl/src/crypto/hash.rs
+++ /dev/null
@@ -1,339 +0,0 @@
-use libc::c_uint;
-use std::io::prelude::*;
-use std::io;
-use std::ptr;
-use std::cmp;
-use ffi;
-
-use HashTypeInternals;
-use error::ErrorStack;
-use nid::Nid;
-
-/// Message digest (hash) type.
-#[derive(Copy, Clone)]
-pub enum Type {
- MD5,
- SHA1,
- SHA224,
- SHA256,
- SHA384,
- SHA512,
- RIPEMD160,
-}
-
-impl HashTypeInternals for Type {
- fn as_nid(&self) -> Nid {
- match *self {
- Type::MD5 => Nid::MD5,
- Type::SHA1 => Nid::SHA1,
- Type::SHA224 => Nid::SHA224,
- Type::SHA256 => Nid::SHA256,
- Type::SHA384 => Nid::SHA384,
- Type::SHA512 => Nid::SHA512,
- Type::RIPEMD160 => Nid::RIPEMD160,
- }
- }
-
- fn evp_md(&self) -> *const ffi::EVP_MD {
- unsafe {
- match *self {
- Type::MD5 => ffi::EVP_md5(),
- Type::SHA1 => ffi::EVP_sha1(),
- Type::SHA224 => ffi::EVP_sha224(),
- Type::SHA256 => ffi::EVP_sha256(),
- Type::SHA384 => ffi::EVP_sha384(),
- Type::SHA512 => ffi::EVP_sha512(),
- Type::RIPEMD160 => ffi::EVP_ripemd160(),
- }
- }
- }
-}
-
-#[derive(PartialEq, Copy, Clone)]
-enum State {
- Reset,
- Updated,
- Finalized,
-}
-
-use self::State::*;
-
-/// Provides message digest (hash) computation.
-///
-/// # Examples
-///
-/// Calculate a hash in one go.
-///
-/// ```
-/// use openssl::crypto::hash::{hash, Type};
-/// let data = b"\x42\xF4\x97\xE0";
-/// let spec = b"\x7c\x43\x0f\x17\x8a\xef\xdf\x14\x87\xfe\xe7\x14\x4e\x96\x41\xe2";
-/// let res = hash(Type::MD5, data).unwrap();
-/// assert_eq!(res, spec);
-/// ```
-///
-/// Use the `Write` trait to supply the input in chunks.
-///
-/// ```
-/// use openssl::crypto::hash::{Hasher, Type};
-/// let data = [b"\x42\xF4", b"\x97\xE0"];
-/// let spec = b"\x7c\x43\x0f\x17\x8a\xef\xdf\x14\x87\xfe\xe7\x14\x4e\x96\x41\xe2";
-/// let mut h = Hasher::new(Type::MD5).unwrap();
-/// h.update(data[0]).unwrap();
-/// h.update(data[1]).unwrap();
-/// let res = h.finish().unwrap();
-/// assert_eq!(res, spec);
-/// ```
-///
-/// # Warning
-///
-/// Don't actually use MD5 and SHA-1 hashes, they're not secure anymore.
-///
-/// Don't ever hash passwords, use `crypto::pkcs5` or bcrypt/scrypt instead.
-pub struct Hasher {
- ctx: *mut ffi::EVP_MD_CTX,
- md: *const ffi::EVP_MD,
- type_: Type,
- state: State,
-}
-
-impl Hasher {
- /// Creates a new `Hasher` with the specified hash type.
- pub fn new(ty: Type) -> Result<Hasher, ErrorStack> {
- ffi::init();
-
- let ctx = unsafe { try_ssl_null!(ffi::EVP_MD_CTX_create()) };
- let md = ty.evp_md();
-
- let mut h = Hasher {
- ctx: ctx,
- md: md,
- type_: ty,
- state: Finalized,
- };
- try!(h.init());
- Ok(h)
- }
-
- fn init(&mut self) -> Result<(), ErrorStack> {
- match self.state {
- Reset => return Ok(()),
- Updated => {
- try!(self.finish());
- }
- Finalized => (),
- }
- unsafe { try_ssl!(ffi::EVP_DigestInit_ex(self.ctx, self.md, 0 as *const _)); }
- self.state = Reset;
- Ok(())
- }
-
- /// Feeds data into the hasher.
- pub fn update(&mut self, mut data: &[u8]) -> Result<(), ErrorStack> {
- if self.state == Finalized {
- try!(self.init());
- }
- while !data.is_empty() {
- let len = cmp::min(data.len(), c_uint::max_value() as usize);
- unsafe {
- try_ssl!(ffi::EVP_DigestUpdate(self.ctx, data.as_ptr(), len as c_uint));
- }
- data = &data[len..];
- }
- self.state = Updated;
- Ok(())
- }
-
- /// Returns the hash of the data written since creation or
- /// the last `finish` and resets the hasher.
- pub fn finish(&mut self) -> Result<Vec<u8>, ErrorStack> {
- if self.state == Finalized {
- try!(self.init());
- }
- unsafe {
- let mut len = ffi::EVP_MAX_MD_SIZE;
- let mut res = vec![0; len as usize];
- try_ssl!(ffi::EVP_DigestFinal_ex(self.ctx, res.as_mut_ptr(), &mut len));
- res.truncate(len as usize);
- self.state = Finalized;
- Ok(res)
- }
- }
-}
-
-impl Write for Hasher {
- #[inline]
- fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
- try!(self.update(buf));
- Ok(buf.len())
- }
-
- fn flush(&mut self) -> io::Result<()> {
- Ok(())
- }
-}
-
-impl Clone for Hasher {
- fn clone(&self) -> Hasher {
- let ctx = unsafe {
- let ctx = ffi::EVP_MD_CTX_create();
- assert!(!ctx.is_null());
- let r = ffi::EVP_MD_CTX_copy_ex(ctx, self.ctx);
- assert_eq!(r, 1);
- ctx
- };
- Hasher {
- ctx: ctx,
- md: self.md,
- type_: self.type_,
- state: self.state,
- }
- }
-}
-
-impl Drop for Hasher {
- fn drop(&mut self) {
- unsafe {
- if self.state != Finalized {
- drop(self.finish());
- }
- ffi::EVP_MD_CTX_destroy(self.ctx);
- }
- }
-}
-
-/// Computes the hash of the `data` with the hash `t`.
-pub fn hash(t: Type, data: &[u8]) -> Result<Vec<u8>, ErrorStack> {
- let mut h = try!(Hasher::new(t));
- try!(h.update(data));
- h.finish()
-}
-
-#[cfg(test)]
-mod tests {
- use serialize::hex::{FromHex, ToHex};
- use super::{hash, Hasher, Type};
- use std::io::prelude::*;
-
- fn hash_test(hashtype: Type, hashtest: &(&str, &str)) {
- let res = hash(hashtype, &*hashtest.0.from_hex().unwrap()).unwrap();
- assert_eq!(res.to_hex(), hashtest.1);
- }
-
- fn hash_recycle_test(h: &mut Hasher, hashtest: &(&str, &str)) {
- let _ = h.write_all(&*hashtest.0.from_hex().unwrap()).unwrap();
- let res = h.finish().unwrap();
- assert_eq!(res.to_hex(), hashtest.1);
- }
-
- // Test vectors from http://www.nsrl.nist.gov/testdata/
- #[allow(non_upper_case_globals)]
- const md5_tests: [(&'static str, &'static str); 13] = [("",
- "d41d8cd98f00b204e9800998ecf8427e"),
- ("7F",
- "83acb6e67e50e31db6ed341dd2de1595"),
- ("EC9C",
- "0b07f0d4ca797d8ac58874f887cb0b68"),
- ("FEE57A",
- "e0d583171eb06d56198fc0ef22173907"),
- ("42F497E0",
- "7c430f178aefdf1487fee7144e9641e2"),
- ("C53B777F1C",
- "75ef141d64cb37ec423da2d9d440c925"),
- ("89D5B576327B",
- "ebbaf15eb0ed784c6faa9dc32831bf33"),
- ("5D4CCE781EB190",
- "ce175c4b08172019f05e6b5279889f2c"),
- ("81901FE94932D7B9",
- "cd4d2f62b8cdb3a0cf968a735a239281"),
- ("C9FFDEE7788EFB4EC9",
- "e0841a231ab698db30c6c0f3f246c014"),
- ("66AC4B7EBA95E53DC10B",
- "a3b3cea71910d9af56742aa0bb2fe329"),
- ("A510CD18F7A56852EB0319",
- "577e216843dd11573574d3fb209b97d8"),
- ("AAED18DBE8938C19ED734A8D",
- "6f80fb775f27e0a4ce5c2f42fc72c5f1")];
-
- #[test]
- fn test_md5() {
- for test in md5_tests.iter() {
- hash_test(Type::MD5, test);
- }
- }
-
- #[test]
- fn test_md5_recycle() {
- let mut h = Hasher::new(Type::MD5).unwrap();
- for test in md5_tests.iter() {
- hash_recycle_test(&mut h, test);
- }
- }
-
- #[test]
- fn test_finish_twice() {
- let mut h = Hasher::new(Type::MD5).unwrap();
- h.write_all(&*md5_tests[6].0.from_hex().unwrap()).unwrap();
- h.finish().unwrap();
- let res = h.finish().unwrap();
- let null = hash(Type::MD5, &[]).unwrap();
- assert_eq!(res, null);
- }
-
- #[test]
- fn test_clone() {
- let i = 7;
- let inp = md5_tests[i].0.from_hex().unwrap();
- assert!(inp.len() > 2);
- let p = inp.len() / 2;
- let h0 = Hasher::new(Type::MD5).unwrap();
-
- println!("Clone a new hasher");
- let mut h1 = h0.clone();
- h1.write_all(&inp[..p]).unwrap();
- {
- println!("Clone an updated hasher");
- let mut h2 = h1.clone();
- h2.write_all(&inp[p..]).unwrap();
- let res = h2.finish().unwrap();
- assert_eq!(res.to_hex(), md5_tests[i].1);
- }
- h1.write_all(&inp[p..]).unwrap();
- let res = h1.finish().unwrap();
- assert_eq!(res.to_hex(), md5_tests[i].1);
-
- println!("Clone a finished hasher");
- let mut h3 = h1.clone();
- h3.write_all(&*md5_tests[i + 1].0.from_hex().unwrap()).unwrap();
- let res = h3.finish().unwrap();
- assert_eq!(res.to_hex(), md5_tests[i + 1].1);
- }
-
- #[test]
- fn test_sha1() {
- let tests = [("616263", "a9993e364706816aba3e25717850c26c9cd0d89d")];
-
- for test in tests.iter() {
- hash_test(Type::SHA1, test);
- }
- }
-
- #[test]
- fn test_sha256() {
- let tests = [("616263",
- "ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad")];
-
- for test in tests.iter() {
- hash_test(Type::SHA256, test);
- }
- }
-
- #[test]
- fn test_ripemd160() {
- let tests = [("616263", "8eb208f7e05d987a9b044a8e98c6b087f15a0bfc")];
-
- for test in tests.iter() {
- hash_test(Type::RIPEMD160, test);
- }
- }
-}