Remove MD4.

2 files changed, 0 insertions, 151 deletions

diff --git a/src/libextra/extra.rs b/src/libextra/extra.rs
index 6abad2ed181..90434cf0d49 100644
--- a/src/libextra/extra.rs
+++ b/src/libextra/extra.rs
@@ -74,7 +74,6 @@ pub mod url;
 pub mod ebml;
 pub mod getopts;
 pub mod json;
-pub mod md4;
 pub mod tempfile;
 pub mod glob;
 pub mod term;
diff --git a/src/libextra/md4.rs b/src/libextra/md4.rs
deleted file mode 100644
index 96238986bf1..00000000000
--- a/src/libextra/md4.rs
+++ /dev/null
@@ -1,150 +0,0 @@
-// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#[allow(missing_doc)];
-
-use std::vec;
-
-struct Quad {
-    a: u32,
-    b: u32,
-    c: u32,
-    d: u32
-}
-
-/// Calculates the md4 hash of the given slice of bytes, returning the 128-bit
-/// result as a quad of u32's
-pub fn md4(msg: &[u8]) -> Quad {
-    // subtle: if orig_len is merely uint, then the code below
-    // which performs shifts by 32 bits or more has undefined
-    // results.
-    let orig_len: u64 = (msg.len() * 8u) as u64;
-
-    // pad message
-    let mut msg = vec::append(msg.to_owned(), [0x80u8]);
-    let mut bitlen = orig_len + 8u64;
-    while (bitlen + 64u64) % 512u64 > 0u64 {
-        msg.push(0u8);
-        bitlen += 8u64;
-    }
-
-    // append length
-    let mut i = 0u64;
-    while i < 8u64 {
-        msg.push((orig_len >> (i * 8u64)) as u8);
-        i += 1u64;
-    }
-
-    let mut a = 0x67452301u32;
-    let mut b = 0xefcdab89u32;
-    let mut c = 0x98badcfeu32;
-    let mut d = 0x10325476u32;
-
-    fn rot(r: int, x: u32) -> u32 {
-        let r = r as u32;
-        (x << r) | (x >> (32u32 - r))
-    }
-
-    let mut i = 0u;
-    let e = msg.len();
-    let mut x = vec::from_elem(16u, 0u32);
-    while i < e {
-        let (aa, bb, cc, dd) = (a, b, c, d);
-
-        let mut j = 0u;
-        let mut base = i;
-        while j < 16u {
-            x[j] = (msg[base] as u32) + (msg[base + 1u] as u32 << 8u32) +
-                (msg[base + 2u] as u32 << 16u32) +
-                (msg[base + 3u] as u32 << 24u32);
-            j += 1u; base += 4u;
-        }
-
-        let mut j = 0u;
-        while j < 16u {
-            a = rot(3, a + ((b & c) | (!b & d)) + x[j]);
-            j += 1u;
-            d = rot(7, d + ((a & b) | (!a & c)) + x[j]);
-            j += 1u;
-            c = rot(11, c + ((d & a) | (!d & b)) + x[j]);
-            j += 1u;
-            b = rot(19, b + ((c & d) | (!c & a)) + x[j]);
-            j += 1u;
-        }
-
-        let mut j = 0u;
-        let q = 0x5a827999u32;
-        while j < 4u {
-            a = rot(3, a + ((b & c) | ((b & d) | (c & d))) + x[j] + q);
-            d = rot(5, d + ((a & b) | ((a & c) | (b & c))) + x[j + 4u] + q);
-            c = rot(9, c + ((d & a) | ((d & b) | (a & b))) + x[j + 8u] + q);
-            b = rot(13, b + ((c & d) | ((c & a) | (d & a))) + x[j + 12u] + q);
-            j += 1u;
-        }
-
-        let mut j = 0u;
-        let q = 0x6ed9eba1u32;
-        while j < 8u {
-            let jj = if j > 2u { j - 3u } else { j };
-            a = rot(3, a + (b ^ c ^ d) + x[jj] + q);
-            d = rot(9, d + (a ^ b ^ c) + x[jj + 8u] + q);
-            c = rot(11, c + (d ^ a ^ b) + x[jj + 4u] + q);
-            b = rot(15, b + (c ^ d ^ a) + x[jj + 12u] + q);
-            j += 2u;
-        }
-
-        a += aa; b += bb; c += cc; d += dd;
-        i += 64u;
-    }
-    return Quad {a: a, b: b, c: c, d: d};
-}
-
-/// Calculates the md4 hash of a slice of bytes, returning the hex-encoded
-/// version of the hash
-pub fn md4_str(msg: &[u8]) -> ~str {
-    let Quad {a, b, c, d} = md4(msg);
-    fn app(a: u32, b: u32, c: u32, d: u32, f: &fn(u32)) {
-        f(a); f(b); f(c); f(d);
-    }
-    let mut result = ~"";
-    do app(a, b, c, d) |u| {
-        let mut i = 0u32;
-        while i < 4u32 {
-            let byte = (u >> (i * 8u32)) as u8;
-            if byte <= 16u8 {
-                result.push_char('0')
-            }
-            result.push_str((byte as uint).to_str_radix(16u));
-            i += 1u32;
-        }
-    }
-    result
-}
-
-/// Calculates the md4 hash of a string, returning the hex-encoded version of
-/// the hash
-pub fn md4_text(msg: &str) -> ~str { md4_str(msg.as_bytes()) }
-
-#[test]
-fn test_md4() {
-    assert_eq!(md4_text(""), ~"31d6cfe0d16ae931b73c59d7e0c089c0");
-    assert_eq!(md4_text("a"), ~"bde52cb31de33e46245e05fbdbd6fb24");
-    assert_eq!(md4_text("abc"), ~"a448017aaf21d8525fc10ae87aa6729d");
-    assert!(md4_text("message digest") ==
-        ~"d9130a8164549fe818874806e1c7014b");
-    assert!(md4_text("abcdefghijklmnopqrstuvwxyz") ==
-        ~"d79e1c308aa5bbcdeea8ed63df412da9");
-    assert!(md4_text(
-        "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz\
-        0123456789") == ~"043f8582f241db351ce627e153e7f0e4");
-    assert!(md4_text("1234567890123456789012345678901234567890123456789\
-                     0123456789012345678901234567890") ==
-        ~"e33b4ddc9c38f2199c3e7b164fcc0536");
-}