7b35b58ae6
Another signedness error. Leave a TODO to possibly resolve EVP_DecodeBlock's ignoring padding. Document some of the Init/Update/Finish versions' behavior. Change-Id: I78a72c3163f8543172a7008b2d09fb10e003d957 Reviewed-on: https://boringssl-review.googlesource.com/1230 Reviewed-by: Adam Langley <agl@google.com>
105 lines
2.9 KiB
C
105 lines
2.9 KiB
C
/* Copyright (c) 2014, Google Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
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#include <stdio.h>
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#include <string.h>
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#include <openssl/base64.h>
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#include <openssl/err.h>
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typedef struct {
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const char *decoded;
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const char *encoded;
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} TEST_VECTOR;
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/* Test vectors from RFC 4648. */
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static const TEST_VECTOR test_vectors[] = {
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{ "", "" },
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{ "f" , "Zg==" },
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{ "fo", "Zm8=" },
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{ "foo", "Zm9v" },
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{ "foob", "Zm9vYg==" },
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{ "fooba", "Zm9vYmE=" },
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{ "foobar", "Zm9vYmFy" },
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};
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static const size_t kNumTests = sizeof(test_vectors) / sizeof(test_vectors[0]);
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static int test_encode() {
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uint8_t out[8];
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size_t i;
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ssize_t len;
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for (i = 0; i < kNumTests; i++) {
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const TEST_VECTOR *t = &test_vectors[i];
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len = EVP_EncodeBlock(out, (const uint8_t*)t->decoded, strlen(t->decoded));
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if (len != strlen(t->encoded) ||
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memcmp(out, t->encoded, len) != 0) {
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fprintf(stderr, "encode(\"%s\") = \"%.*s\", want \"%s\"\n",
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t->decoded, (int)len, (const char*)out, t->encoded);
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return 0;
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}
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}
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return 1;
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}
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static int test_decode() {
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uint8_t out[6];
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size_t i;
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ssize_t len;
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for (i = 0; i < kNumTests; i++) {
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const TEST_VECTOR *t = &test_vectors[i];
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size_t expected_len = strlen(t->decoded);
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len = EVP_DecodeBlock(out, (const uint8_t*)t->encoded, strlen(t->encoded));
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/* TODO(davidben): EVP_DecodeBlock doesn't take padding into account. Is
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* this behavior we can change? */
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if (expected_len % 3 != 0) {
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len -= 3 - (expected_len % 3);
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}
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if (len != strlen(t->decoded) ||
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memcmp(out, t->decoded, len) != 0) {
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fprintf(stderr, "decode(\"%s\") = \"%.*s\", want \"%s\"\n",
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t->encoded, (int)len, (const char*)out, t->decoded);
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return 0;
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}
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}
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if (EVP_DecodeBlock(out, (const uint8_t*)"a!bc", 4) >= 0) {
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fprintf(stderr, "Failed to reject invalid characters in the middle.\n");
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return 0;
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}
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if (EVP_DecodeBlock(out, (const uint8_t*)"abc", 3) >= 0) {
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fprintf(stderr, "Failed to reject invalid input length.\n");
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return 0;
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}
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return 1;
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}
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int main() {
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ERR_load_crypto_strings();
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if (!test_encode()) {
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return 1;
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}
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if (!test_decode()) {
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return 1;
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}
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printf("PASS\n");
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return 0;
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}
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