Mirror of BoringSSL (grpc依赖)
https://boringssl.googlesource.com/boringssl
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57 lines
1.8 KiB
57 lines
1.8 KiB
/* Copyright (c) 2022, 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 <stdlib.h> |
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#include <string.h> |
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#include <openssl/bytestring.h> |
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#include <openssl/ecdsa.h> |
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#include <openssl/mem.h> |
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t *buf, size_t len) { |
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CBS cbs, body; |
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unsigned tag; |
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CBS_init(&cbs, buf, len); |
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if (CBS_get_any_asn1(&cbs, &body, &tag)) { |
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// DER has a unique encoding, so any parsed input should round-trip |
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// correctly. |
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size_t consumed = len - CBS_len(&cbs); |
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bssl::ScopedCBB cbb; |
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CBB body_cbb; |
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if (!CBB_init(cbb.get(), consumed) || |
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!CBB_add_asn1(cbb.get(), &body_cbb, tag) || |
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!CBB_add_bytes(&body_cbb, CBS_data(&body), CBS_len(&body)) || |
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!CBB_flush(cbb.get()) || |
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CBB_len(cbb.get()) != consumed || |
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memcmp(CBB_data(cbb.get()), buf, consumed) != 0) { |
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abort(); |
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} |
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} |
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ECDSA_SIG *sig = ECDSA_SIG_from_bytes(buf, len); |
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if (sig != NULL) { |
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uint8_t *enc; |
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size_t enc_len; |
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if (!ECDSA_SIG_to_bytes(&enc, &enc_len, sig) || |
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enc_len != len || |
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memcmp(buf, enc, len) != 0) { |
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abort(); |
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} |
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OPENSSL_free(enc); |
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ECDSA_SIG_free(sig); |
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} |
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return 0; |
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}
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