Implement sha-1 in standard library. Closes #228

1 files changed, 115 insertions, 0 deletions

diff --git a/src/test/run-pass/lib-sha1.rs b/src/test/run-pass/lib-sha1.rs
new file mode 100644
index 00000000..57e3cdc8
--- /dev/null
+++ b/src/test/run-pass/lib-sha1.rs
@@ -0,0 +1,115 @@
+// -*- rust -*-
+
+use std;
+
+import std.sha1;
+import std._vec;
+import std._str;
+
+fn main() {
+
+    type test = rec(str input, vec[u8] output);
+
+    fn a_million_letter_a() -> str {
+        auto i = 0;
+        auto res = "";
+        while (i < 100000) {
+            res += "aaaaaaaaaa";
+            i += 1;
+        }
+        ret res;
+    }
+
+    // Test messages from FIPS 180-1
+    let vec[test] fips_180_1_tests =
+        vec(
+            rec(input = "abc",
+                output = vec(0xA9u8, 0x99u8, 0x3Eu8, 0x36u8, 0x47u8,
+                             0x06u8, 0x81u8, 0x6Au8, 0xBAu8, 0x3Eu8,
+                             0x25u8, 0x71u8, 0x78u8, 0x50u8, 0xC2u8,
+                             0x6Cu8, 0x9Cu8, 0xD0u8, 0xD8u8, 0x9Du8)
+                ),
+            rec(input = "abcdbcdecdefdefgefghfghighij"
+                      + "hijkijkljklmklmnlmnomnopnopq",
+                output = vec(0x84u8, 0x98u8, 0x3Eu8, 0x44u8, 0x1Cu8,
+                             0x3Bu8, 0xD2u8, 0x6Eu8, 0xBAu8, 0xAEu8,
+                             0x4Au8, 0xA1u8, 0xF9u8, 0x51u8, 0x29u8,
+                             0xE5u8, 0xE5u8, 0x46u8, 0x70u8, 0xF1u8)
+                )
+            // FIXME: This test is disabled because it takes some
+            // minutes to run under rustboot+valgrind. It may be
+            // possible to reenable once things are more optimized.
+            /*,
+            rec(input = a_million_letter_a(),
+                output = vec(0x34u8, 0xAAu8, 0x97u8, 0x3Cu8, 0xD4u8,
+                             0xC4u8, 0xDAu8, 0xA4u8, 0xF6u8, 0x1Eu8,
+                             0xEBu8, 0x2Bu8, 0xDBu8, 0xADu8, 0x27u8,
+                             0x31u8, 0x65u8, 0x34u8, 0x01u8, 0x6Fu8)
+                )
+            */
+            );
+
+    // Examples from wikipedia
+    let vec[test] wikipedia_tests =
+        vec(
+            rec(input = "The quick brown fox jumps over the lazy dog",
+                output = vec(0x2fu8, 0xd4u8, 0xe1u8, 0xc6u8, 0x7au8,
+                             0x2du8, 0x28u8, 0xfcu8, 0xedu8, 0x84u8,
+                             0x9eu8, 0xe1u8, 0xbbu8, 0x76u8, 0xe7u8,
+                             0x39u8, 0x1bu8, 0x93u8, 0xebu8, 0x12u8)
+                ),
+            rec(input = "The quick brown fox jumps over the lazy cog",
+                output = vec(0xdeu8, 0x9fu8, 0x2cu8, 0x7fu8, 0xd2u8,
+                             0x5eu8, 0x1bu8, 0x3au8, 0xfau8, 0xd3u8,
+                             0xe8u8, 0x5au8, 0x0bu8, 0xd1u8, 0x7du8,
+                             0x9bu8, 0x10u8, 0x0du8, 0xb4u8, 0xb3u8)
+                )
+            );
+
+    auto tests = fips_180_1_tests + wikipedia_tests;
+
+    fn check_vec_eq(vec[u8] v0, vec[u8] v1) {
+        check (_vec.len[u8](v0) == _vec.len[u8](v1));
+        auto len = _vec.len[u8](v0);
+        auto i = 0u;
+        while (i < len) {
+            auto a = v0.(i);
+            auto b = v1.(i);
+            check (a == b);
+            i += 1u;
+        }
+    }
+
+    // Test that it works when accepting the message all at once
+    auto sh = sha1.mk_sha1();
+    for (test t in tests) {
+        sh.input_str(t.input);
+        auto out = sh.result();
+        check_vec_eq(t.output, out);
+        sh.reset();
+    }
+
+    // Test that it works when accepting the message in pieces
+    for (test t in tests) {
+        auto len = _str.byte_len(t.input);
+        auto left = len;
+        while (left > 0u) {
+            auto take = (left + 1u) / 2u;
+            sh.input_str(_str.substr(t.input, len - left, take));
+            left = left - take;
+        }
+        auto out = sh.result();
+        check_vec_eq(t.output, out);
+        sh.reset();
+    }
+}
+
+
+// Local Variables:
+// mode: rust;
+// fill-column: 78;
+// indent-tabs-mode: nil
+// c-basic-offset: 4
+// buffer-file-coding-system: utf-8-unix
+// compile-command: "make -k -C .. 2>&1 | sed -e 's/\\/x\\//x:\\//g'";
+// End: