073391f7d6
Nothing is using them. For encrypt, there's generally no need to swap
out public key operations. keygen seems especially pointless as one
could just as easily call the other function directly.
The one behavior change is RSA_encrypt now gracefully detects if called
on an empty RSA, to match the other un-RSA_METHOD-ed functions which had
similar treatments. (Conscrypt was filling in the encrypt function
purely to provide a non-crashing no-op function. They leave the public
bits blank and pass their custom keys through sufficiently many layers
of Java crypto goo that it's not obvious whether this is reachable.)
We still can't take the function pointers out, but once
96bbe03dfd
trickles back into everything, we can finally prune RSA_METHOD.
Bump BORINGSSL_API_VERSION as a convenience so I can land the
corresponding removal in Conscrypt immediately.
Change-Id: Ia2ef4780a5dfcb869b224e1ff632daab8d378b2e
Reviewed-on: https://boringssl-review.googlesource.com/15864
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
136 lines
6.2 KiB
C
136 lines
6.2 KiB
C
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.] */
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#ifndef OPENSSL_HEADER_RSA_INTERNAL_H
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#define OPENSSL_HEADER_RSA_INTERNAL_H
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#include <openssl/base.h>
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#include <openssl/bn.h>
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#if defined(__cplusplus)
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extern "C" {
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#endif
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/* Default implementations of RSA operations. */
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extern const RSA_METHOD RSA_default_method;
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size_t rsa_default_size(const RSA *rsa);
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int rsa_default_sign_raw(RSA *rsa, size_t *out_len, uint8_t *out,
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size_t max_out, const uint8_t *in, size_t in_len,
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int padding);
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int rsa_default_decrypt(RSA *rsa, size_t *out_len, uint8_t *out, size_t max_out,
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const uint8_t *in, size_t in_len, int padding);
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int rsa_default_private_transform(RSA *rsa, uint8_t *out, const uint8_t *in,
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size_t len);
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BN_BLINDING *BN_BLINDING_new(void);
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void BN_BLINDING_free(BN_BLINDING *b);
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int BN_BLINDING_convert(BIGNUM *n, BN_BLINDING *b, const BIGNUM *e,
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const BN_MONT_CTX *mont_ctx, BN_CTX *ctx);
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int BN_BLINDING_invert(BIGNUM *n, const BN_BLINDING *b, BN_MONT_CTX *mont_ctx,
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BN_CTX *ctx);
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int RSA_padding_add_PKCS1_type_1(uint8_t *to, size_t to_len,
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const uint8_t *from, size_t from_len);
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int RSA_padding_check_PKCS1_type_1(uint8_t *out, size_t *out_len,
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size_t max_out, const uint8_t *from,
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size_t from_len);
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int RSA_padding_add_PKCS1_type_2(uint8_t *to, size_t to_len,
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const uint8_t *from, size_t from_len);
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int RSA_padding_check_PKCS1_type_2(uint8_t *out, size_t *out_len,
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size_t max_out, const uint8_t *from,
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size_t from_len);
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int RSA_padding_check_PKCS1_OAEP_mgf1(uint8_t *out, size_t *out_len,
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size_t max_out, const uint8_t *from,
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size_t from_len, const uint8_t *param,
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size_t param_len, const EVP_MD *md,
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const EVP_MD *mgf1md);
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int RSA_padding_add_none(uint8_t *to, size_t to_len, const uint8_t *from,
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size_t from_len);
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/* RSA_private_transform calls either the method-specific |private_transform|
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* function (if given) or the generic one. See the comment for
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* |private_transform| in |rsa_meth_st|. */
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int RSA_private_transform(RSA *rsa, uint8_t *out, const uint8_t *in,
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size_t len);
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/* The following utility functions are exported for test purposes. */
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extern const BN_ULONG kBoringSSLRSASqrtTwo[];
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extern const size_t kBoringSSLRSASqrtTwoLen;
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/* rsa_less_than_words returns one if |a| < |b| and zero otherwise, where |a|
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* and |b| both are |len| words long. It runs in constant time. */
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int rsa_less_than_words(const BN_ULONG *a, const BN_ULONG *b, size_t len);
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/* rsa_greater_than_pow2 returns one if |b| is greater than 2^|n| and zero
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* otherwise. */
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int rsa_greater_than_pow2(const BIGNUM *b, int n);
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#if defined(__cplusplus)
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} /* extern C */
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#endif
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#endif /* OPENSSL_HEADER_RSA_INTERNAL_H */
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