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-rw-r--r--src/crypto/bn/bn_asn1.c93
1 files changed, 0 insertions, 93 deletions
diff --git a/src/crypto/bn/bn_asn1.c b/src/crypto/bn/bn_asn1.c
deleted file mode 100644
index 9d70ba8..0000000
--- a/src/crypto/bn/bn_asn1.c
+++ /dev/null
@@ -1,93 +0,0 @@
-/* Copyright (c) 2015, Google Inc.
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
- * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
- * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
- * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
-
-#include <openssl/bn.h>
-
-#include <openssl/bytestring.h>
-#include <openssl/err.h>
-
-
-int BN_cbs2unsigned(CBS *cbs, BIGNUM *ret) {
- CBS child;
- if (!CBS_get_asn1(cbs, &child, CBS_ASN1_INTEGER) ||
- CBS_len(&child) == 0) {
- OPENSSL_PUT_ERROR(BN, BN_R_BAD_ENCODING);
- return 0;
- }
-
- if (CBS_data(&child)[0] & 0x80) {
- OPENSSL_PUT_ERROR(BN, BN_R_NEGATIVE_NUMBER);
- return 0;
- }
-
- /* INTEGERs must be minimal. */
- if (CBS_data(&child)[0] == 0x00 &&
- CBS_len(&child) > 1 &&
- !(CBS_data(&child)[1] & 0x80)) {
- OPENSSL_PUT_ERROR(BN, BN_R_BAD_ENCODING);
- return 0;
- }
-
- return BN_bin2bn(CBS_data(&child), CBS_len(&child), ret) != NULL;
-}
-
-int BN_cbs2unsigned_buggy(CBS *cbs, BIGNUM *ret) {
- CBS child;
- if (!CBS_get_asn1(cbs, &child, CBS_ASN1_INTEGER) ||
- CBS_len(&child) == 0) {
- OPENSSL_PUT_ERROR(BN, BN_R_BAD_ENCODING);
- return 0;
- }
-
- /* This function intentionally does not reject negative numbers or non-minimal
- * encodings. Estonian IDs issued between September 2014 to September 2015 are
- * broken. See https://crbug.com/532048 and https://crbug.com/534766.
- *
- * TODO(davidben): Remove this code and callers in March 2016. */
- return BN_bin2bn(CBS_data(&child), CBS_len(&child), ret) != NULL;
-}
-
-int BN_bn2cbb(CBB *cbb, const BIGNUM *bn) {
- /* Negative numbers are unsupported. */
- if (BN_is_negative(bn)) {
- OPENSSL_PUT_ERROR(BN, BN_R_NEGATIVE_NUMBER);
- return 0;
- }
-
- CBB child;
- if (!CBB_add_asn1(cbb, &child, CBS_ASN1_INTEGER)) {
- OPENSSL_PUT_ERROR(BN, BN_R_ENCODE_ERROR);
- return 0;
- }
-
- /* The number must be padded with a leading zero if the high bit would
- * otherwise be set (or |bn| is zero). */
- if (BN_num_bits(bn) % 8 == 0 &&
- !CBB_add_u8(&child, 0x00)) {
- OPENSSL_PUT_ERROR(BN, BN_R_ENCODE_ERROR);
- return 0;
- }
-
- uint8_t *out;
- if (!CBB_add_space(&child, &out, BN_num_bytes(bn))) {
- OPENSSL_PUT_ERROR(BN, BN_R_ENCODE_ERROR);
- return 0;
- }
- BN_bn2bin(bn, out);
- if (!CBB_flush(cbb)) {
- OPENSSL_PUT_ERROR(BN, BN_R_ENCODE_ERROR);
- return 0;
- }
- return 1;
-}