third_party/openssl: add ChaCha20+Poly1305 support.

openssl/crypto/poly1305/poly1305test.c

+/* ====================================================================
+ * 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;
+        }