SHA2 pipeline with support for 256, 384, and 512 bits

Implemented pipeline around sph sha calls using standard test vectors
for full-byte values.  Did not test or support partial byte values.

1 files changed, 69 insertions, 0 deletions

diff --git a/libtests/sha2.cc b/libtests/sha2.cc
new file mode 100644
index 00000000..2b9aac3c
--- /dev/null
+++ b/libtests/sha2.cc
@@ -0,0 +1,69 @@
+#include <qpdf/Pl_SHA2.hh>
+#include <iostream>
+#include <stdlib.h>
+#include <string.h>
+#include <qpdf/QUtil.hh>
+
+static void test(Pl_SHA2& sha2, char const* description, int bits,
+                 char const* input, std::string const& output)
+{
+    sha2.resetBits(bits);
+    sha2.write((unsigned char*) input, strlen(input));
+    sha2.finish();
+    std::cout << description << ": ";
+    if (output == sha2.getHexDigest())
+    {
+        std::cout << "passed\n";
+    }
+    else
+    {
+        std::cout << "failed\n"
+                  << "  expected: " << output << "\n"
+                  << "  actual:   " << sha2.getHexDigest() << "\n";
+    }
+}
+
+int main( int argc, char *argv[] )
+{
+    Pl_SHA2 sha2;
+    char million_a[1000001];
+    memset(million_a, 'a', 1000000);
+    million_a[1000000] = '\0';
+    test(sha2, "256 short", 256,
+         "abc",
+         "ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad");
+    test(sha2, "256 long", 256,
+         "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
+         "248d6a61d20638b8e5c026930c3e6039a33ce45964ff2167f6ecedd419db06c1");
+    test(sha2, "256 million", 256,
+         million_a,
+         "cdc76e5c9914fb9281a1c7e284d73e67f1809a48a497200e046d39ccc7112cd0");
+    test(sha2, "384 short", 384,
+         "abc",
+         "cb00753f45a35e8bb5a03d699ac65007272c32ab0eded163"
+         "1a8b605a43ff5bed8086072ba1e7cc2358baeca134c825a7");
+    test(sha2, "384 long", 384,
+         "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn"
+         "hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu",
+         "09330c33f71147e83d192fc782cd1b4753111b173b3b05d2"
+         "2fa08086e3b0f712fcc7c71a557e2db966c3e9fa91746039");
+    test(sha2, "384 million", 384,
+         million_a,
+         "9d0e1809716474cb086e834e310a4a1ced149e9c00f24852"
+         "7972cec5704c2a5b07b8b3dc38ecc4ebae97ddd87f3d8985");
+    test(sha2, "512 short", 512,
+         "abc",
+         "ddaf35a193617abacc417349ae20413112e6fa4e89a97ea20a9eeee64b55d39a"
+         "2192992a274fc1a836ba3c23a3feebbd454d4423643ce80e2a9ac94fa54ca49f");
+    test(sha2, "512 long", 512,
+         "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn"
+         "hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu",
+         "8e959b75dae313da8cf4f72814fc143f8f7779c6eb9f7fa17299aeadb6889018"
+         "501d289e4900f7e4331b99dec4b5433ac7d329eeb6dd26545e96e55b874be909");
+    test(sha2, "512 million", 512,
+         million_a,
+         "e718483d0ce769644e2e42c7bc15b4638e1f98b13b2044285632a803afa973eb"
+         "de0ff244877ea60a4cb0432ce577c31beb009c5c2c49aa2e4eadb217ad8cc09b");
+
+    return 0;
+}