third_party/openssl: add ChaCha20+Poly1305 support.

openssl/crypto/poly1305/poly1305test.c

Index: openssl/crypto/poly1305/poly1305test.c
diff --git a/openssl/crypto/poly1305/poly1305test.c b/openssl/crypto/poly1305/poly1305test.c
new file mode 100644
index 0000000000000000000000000000000000000000..8dd26af36d5bd7fe22dec3336f6b94a737b09678
--- /dev/null
+++ b/openssl/crypto/poly1305/poly1305test.c
@@ -0,0 +1,166 @@
+/* ====================================================================
+ * Copyright (c) 2011-2013 The OpenSSL Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <openssl/poly1305.h>
+
+struct poly1305_test
+	{
+	const char *inputhex;
+	const char *keyhex;
+	const char *outhex;
+	};
+
+static const struct poly1305_test poly1305_tests[] = {
+	{
+		"",
+		"c8afaac331ee372cd6082de134943b174710130e9f6fea8d72293850a667d86c",
+		"4710130e9f6fea8d72293850a667d86c",
+	},
+	{
+		"48656c6c6f20776f726c6421",
+		"746869732069732033322d62797465206b657920666f7220506f6c7931333035",
+		"a6f745008f81c916a20dcc74eef2b2f0",
+	},
+	{
+		"0000000000000000000000000000000000000000000000000000000000000000",
+		"746869732069732033322d62797465206b657920666f7220506f6c7931333035",
+		"49ec78090e481ec6c26b33b91ccc0307",
+	},
+	{
+		"000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
+		"746869732069732033322d62797465206b657920666f7220506f6c7931333035",
+		"da84bcab02676c38cdb015604274c2aa",
+	},
+};
+
+static unsigned char hex_digit(char h)
+	{
+	if (h >= '0' && h <= '9')
+		return h - '0';
+	else if (h >= 'a' && h <= 'f')
+		return h - 'a' + 10;
+	else if (h >= 'A' && h <= 'F')
+		return h - 'A' + 10;
+	else
+		abort();
+	}
+
+static void hex_decode(unsigned char *out, const char* hex)
+	{
+	size_t j = 0;
+
+	while (*hex != 0)
+		{
+		unsigned char v = hex_digit(*hex++);
+		v <<= 4;
+		v |= hex_digit(*hex++);
+		out[j++] = v;
+		}
+	}
+
+static void hexdump(unsigned char *a, size_t len)
+	{
+	size_t i;
+
+	for (i = 0; i < len; i++)
+		printf("%02x", a[i]);
+	}
+
+int main()
+	{
+	static const unsigned num_tests =
+		sizeof(poly1305_tests) / sizeof(struct poly1305_test);
+	unsigned i;
+	unsigned char key[32], out[16], expected[16];
+	poly1305_state poly1305;
+
+	for (i = 0; i < num_tests; i++)
+		{
+		const struct poly1305_test *test = &poly1305_tests[i];
+		unsigned char *in;
+		size_t inlen = strlen(test->inputhex);
+
+		if (strlen(test->keyhex) != sizeof(key)*2 ||
+		    strlen(test->outhex) != sizeof(out)*2 ||
+		    (inlen & 1) == 1)
+			return 1;
+
+		inlen /= 2;
+
+		hex_decode(key, test->keyhex);
+		hex_decode(expected, test->outhex);
+
+		in = malloc(inlen);
+
+		hex_decode(in, test->inputhex);
+		CRYPTO_poly1305_init(&poly1305, key);
+		CRYPTO_poly1305_update(&poly1305, in, inlen);
+		CRYPTO_poly1305_finish(&poly1305, out);
+
+		if (memcmp(out, expected, sizeof(expected)) != 0)
+			{
+			printf("Poly1305 test #%d failed.\n", i);
+			printf("got:      ");
+			hexdump(out, sizeof(out));
+			printf("\nexpected: ");
+			hexdump(expected, sizeof(expected));
+			printf("\n");
+			return 1;
+			}
+
+		free(in);
+		}
+
+	printf("PASS\n");
+	return 0;
+	}