2014-07-14 23:28:14 +01:00
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/* 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_H
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#define OPENSSL_HEADER_RSA_H
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#include <openssl/base.h>
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#include <openssl/engine.h>
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#include <openssl/ex_data.h>
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#if defined(__cplusplus)
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extern "C" {
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#endif
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/* rsa.h contains functions for handling encryption and signature using RSA. */
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/* Allocation and destruction. */
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/* RSA_new returns a new, empty RSA object or NULL on error. */
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2014-07-31 00:02:14 +01:00
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OPENSSL_EXPORT RSA *RSA_new(void);
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2014-07-14 23:28:14 +01:00
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2014-08-19 19:24:27 +01:00
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/* RSA_new_method acts the same as |RSA_new| but takes an explicit |ENGINE|. */
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2014-07-31 00:02:14 +01:00
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OPENSSL_EXPORT RSA *RSA_new_method(const ENGINE *engine);
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2014-07-14 23:28:14 +01:00
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/* RSA_free decrements the reference count of |rsa| and frees it if the
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* reference count drops to zero. */
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2014-07-31 00:02:14 +01:00
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OPENSSL_EXPORT void RSA_free(RSA *rsa);
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2014-07-14 23:28:14 +01:00
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/* RSA_up_ref increments the reference count of |rsa|. */
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2014-07-31 00:02:14 +01:00
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OPENSSL_EXPORT int RSA_up_ref(RSA *rsa);
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2014-07-14 23:28:14 +01:00
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/* Key generation. */
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/* RSA_generate_key_ex generates a new RSA key where the modulus has size
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* |bits| and the public exponent is |e|. If unsure, |RSA_F4| is a good value
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* for |e|. If |cb| is not NULL then it is called during the key generation
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* process. In addition to the calls documented for |BN_generate_prime_ex|, it
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* is called with event=2 when the n'th prime is rejected as unsuitable and
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2014-07-25 18:06:44 +01:00
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* with event=3 when a suitable value for |p| is found.
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*
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* It returns one on success or zero on error. */
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2014-07-31 00:02:14 +01:00
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OPENSSL_EXPORT int RSA_generate_key_ex(RSA *rsa, int bits, BIGNUM *e,
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BN_GENCB *cb);
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2014-07-14 23:28:14 +01:00
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/* Encryption / Decryption */
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/* Padding types for encryption. */
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#define RSA_PKCS1_PADDING 1
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#define RSA_NO_PADDING 3
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#define RSA_PKCS1_OAEP_PADDING 4
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/* RSA_PKCS1_PSS_PADDING can only be used via the EVP interface. */
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#define RSA_PKCS1_PSS_PADDING 6
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/* RSA_encrypt encrypts |in_len| bytes from |in| to the public key from |rsa|
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* and writes, at most, |max_out| bytes of encrypted data to |out|. The
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* |max_out| argument must be, at least, |RSA_size| in order to ensure success.
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*
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* It returns 1 on success or zero on error.
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*
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* The |padding| argument must be one of the |RSA_*_PADDING| values. If in
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* doubt, |RSA_PKCS1_PADDING| is the most common but |RSA_PKCS1_OAEP_PADDING|
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* is the most secure. */
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2014-07-31 00:02:14 +01:00
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OPENSSL_EXPORT int RSA_encrypt(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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2014-07-14 23:28:14 +01:00
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/* RSA_decrypt decrypts |in_len| bytes from |in| with the private key from
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* |rsa| and writes, at most, |max_out| bytes of plaintext to |out|. The
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* |max_out| argument must be, at least, |RSA_size| in order to ensure success.
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*
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* It returns 1 on success or zero on error.
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*
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* The |padding| argument must be one of the |RSA_*_PADDING| values. If in
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* doubt, |RSA_PKCS1_PADDING| is the most common but |RSA_PKCS1_OAEP_PADDING|
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* is the most secure. */
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2014-07-31 00:02:14 +01:00
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OPENSSL_EXPORT int RSA_decrypt(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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2014-07-14 23:28:14 +01:00
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/* RSA_public_encrypt encrypts |flen| bytes from |from| to the public key in
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* |rsa| and writes the encrypted data to |to|. The |to| buffer must have at
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* least |RSA_size| bytes of space. It returns the number of bytes written, or
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* -1 on error. The |padding| argument must be one of the |RSA_*_PADDING|
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* values. If in doubt, |RSA_PKCS1_PADDING| is the most common but
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* |RSA_PKCS1_OAEP_PADDING| is the most secure.
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*
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* WARNING: this function is dangerous because it breaks the usual return value
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* convention. Use |RSA_encrypt| instead. */
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2014-07-31 00:02:14 +01:00
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OPENSSL_EXPORT int RSA_public_encrypt(int flen, const uint8_t *from,
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uint8_t *to, RSA *rsa, int padding);
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2014-07-14 23:28:14 +01:00
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/* RSA_private_decrypt decrypts |flen| bytes from |from| with the public key in
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* |rsa| and writes the plaintext to |to|. The |to| buffer must have at
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* least |RSA_size| bytes of space. It returns the number of bytes written, or
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* -1 on error. The |padding| argument must be one of the |RSA_*_PADDING|
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* values. If in doubt, |RSA_PKCS1_PADDING| is the most common but
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* |RSA_PKCS1_OAEP_PADDING| is the most secure.
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*
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* WARNING: this function is dangerous because it breaks the usual return value
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* convention. Use |RSA_decrypt| instead. */
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2014-07-31 00:02:14 +01:00
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OPENSSL_EXPORT int RSA_private_decrypt(int flen, const uint8_t *from,
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uint8_t *to, RSA *rsa, int padding);
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2014-07-14 23:28:14 +01:00
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2014-07-24 20:34:14 +01:00
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/* RSA_message_index_PKCS1_type_2 performs the first step of a PKCS #1 padding
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* check for decryption. If the |from_len| bytes pointed to at |from| are a
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* valid PKCS #1 message, it returns one and sets |*out_index| to the start of
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* the unpadded message. The unpadded message is a suffix of the input and has
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* length |from_len - *out_index|. Otherwise, it returns zero and sets
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* |*out_index| to some undefined value. This function runs in time independent
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* of the input data and is intended to be used directly to avoid
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2014-08-02 09:15:54 +01:00
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* Bleichenbacher's attack.
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2014-07-24 20:34:14 +01:00
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*
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* WARNING: This function behaves differently from the usual OpenSSL convention
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* in that it does NOT put an error on the queue in the error case. */
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2014-07-31 00:02:14 +01:00
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OPENSSL_EXPORT int RSA_message_index_PKCS1_type_2(const uint8_t *from,
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size_t from_len,
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size_t *out_index);
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2014-07-24 20:34:14 +01:00
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2014-07-14 23:28:14 +01:00
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/* Signing / Verification */
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/* RSA_sign signs |in_len| bytes of digest from |in| with |rsa| and writes, at
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* most, |RSA_size(rsa)| bytes to |out|. On successful return, the actual
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* number of bytes written is written to |*out_len|.
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*
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* The |hash_nid| argument identifies the hash function used to calculate |in|
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* and is embedded in the resulting signature. For example, it might be
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* |NID_sha256|.
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*
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* It returns 1 on success and zero on error. */
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2014-07-31 00:02:14 +01:00
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OPENSSL_EXPORT int RSA_sign(int hash_nid, const uint8_t *in,
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unsigned int in_len, uint8_t *out,
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unsigned int *out_len, RSA *rsa);
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2014-07-14 23:28:14 +01:00
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/* RSA_sign_raw signs |in_len| bytes from |in| with the public key from |rsa|
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* and writes, at most, |max_out| bytes of encrypted data to |out|. The
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* |max_out| argument must be, at least, |RSA_size| in order to ensure success.
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*
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* It returns 1 on success or zero on error.
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*
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* The |padding| argument must be one of the |RSA_*_PADDING| values. If in
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* doubt, |RSA_PKCS1_PADDING| is the most common. */
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2014-07-31 00:02:14 +01:00
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OPENSSL_EXPORT int RSA_sign_raw(RSA *rsa, size_t *out_len, uint8_t *out,
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size_t max_out, const uint8_t *in,
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size_t in_len, int padding);
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2014-07-14 23:28:14 +01:00
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/* RSA_verify verifies that |sig_len| bytes from |sig| are a valid, PKCS#1
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* signature of |msg_len| bytes at |msg| by |rsa|.
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*
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* The |hash_nid| argument identifies the hash function used to calculate |in|
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* and is embedded in the resulting signature in order to prevent hash
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* confusion attacks. For example, it might be |NID_sha256|.
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*
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* It returns one if the signature is valid and zero otherwise.
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*
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* WARNING: this differs from the original, OpenSSL function which additionally
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* returned -1 on error. */
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2014-07-31 00:02:14 +01:00
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OPENSSL_EXPORT int RSA_verify(int hash_nid, const uint8_t *msg, size_t msg_len,
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const uint8_t *sig, size_t sig_len, RSA *rsa);
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2014-07-14 23:28:14 +01:00
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/* RSA_verify_raw verifies |in_len| bytes of signature from |in| using the
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* public key from |rsa| and writes, at most, |max_out| bytes of plaintext to
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* |out|. The |max_out| argument must be, at least, |RSA_size| in order to
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* ensure success.
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*
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* It returns 1 on success or zero on error.
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*
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* The |padding| argument must be one of the |RSA_*_PADDING| values. If in
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* doubt, |RSA_PKCS1_PADDING| is the most common. */
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2014-07-31 00:02:14 +01:00
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OPENSSL_EXPORT int RSA_verify_raw(RSA *rsa, size_t *out_len, uint8_t *out,
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size_t max_out, const uint8_t *in,
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size_t in_len, int padding);
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2014-07-14 23:28:14 +01:00
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/* RSA_private_encrypt encrypts |flen| bytes from |from| with the private key in
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* |rsa| and writes the encrypted data to |to|. The |to| buffer must have at
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* least |RSA_size| bytes of space. It returns the number of bytes written, or
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* -1 on error. The |padding| argument must be one of the |RSA_*_PADDING|
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* values. If in doubt, |RSA_PKCS1_PADDING| is the most common.
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*
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* WARNING: this function is dangerous because it breaks the usual return value
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* convention. Use |RSA_sign_raw| instead. */
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2014-07-31 00:02:14 +01:00
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OPENSSL_EXPORT int RSA_private_encrypt(int flen, const uint8_t *from,
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uint8_t *to, RSA *rsa, int padding);
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2014-07-14 23:28:14 +01:00
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/* RSA_private_encrypt verifies |flen| bytes of signature from |from| using the
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* public key in |rsa| and writes the plaintext to |to|. The |to| buffer must
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* have at least |RSA_size| bytes of space. It returns the number of bytes
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* written, or -1 on error. The |padding| argument must be one of the
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* |RSA_*_PADDING| values. If in doubt, |RSA_PKCS1_PADDING| is the most common.
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*
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* WARNING: this function is dangerous because it breaks the usual return value
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* convention. Use |RSA_verify_raw| instead. */
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2014-07-31 00:02:14 +01:00
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OPENSSL_EXPORT int RSA_public_decrypt(int flen, const uint8_t *from,
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uint8_t *to, RSA *rsa, int padding);
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2014-07-14 23:28:14 +01:00
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/* Utility functions. */
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/* RSA_size returns the number of bytes in the modulus, which is also the size
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* of a signature of encrypted value using |rsa|. */
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2014-07-31 00:02:14 +01:00
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OPENSSL_EXPORT unsigned RSA_size(const RSA *rsa);
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2014-07-14 23:28:14 +01:00
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2014-07-18 23:39:42 +01:00
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/* RSA_is_opaque returns one if |rsa| is opaque and doesn't expose its key
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2014-11-12 04:47:50 +00:00
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* material. Otherwise it returns zero. */
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2014-07-31 00:02:14 +01:00
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OPENSSL_EXPORT int RSA_is_opaque(const RSA *rsa);
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2014-07-18 23:39:42 +01:00
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2014-11-12 04:47:50 +00:00
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/* RSA_supports_digest returns one if |rsa| supports signing digests
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* of type |md|. Otherwise it returns zero. */
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OPENSSL_EXPORT int RSA_supports_digest(const RSA *rsa, const EVP_MD *md);
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2014-07-14 23:28:14 +01:00
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/* RSAPublicKey_dup allocates a fresh |RSA| and copies the private key from
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* |rsa| into it. It returns the fresh |RSA| object, or NULL on error. */
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2014-07-31 00:02:14 +01:00
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OPENSSL_EXPORT RSA *RSAPublicKey_dup(const RSA *rsa);
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2014-07-14 23:28:14 +01:00
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/* RSAPrivateKey_dup allocates a fresh |RSA| and copies the private key from
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* |rsa| into it. It returns the fresh |RSA| object, or NULL on error. */
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2014-07-31 00:02:14 +01:00
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OPENSSL_EXPORT RSA *RSAPrivateKey_dup(const RSA *rsa);
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2014-07-14 23:28:14 +01:00
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2014-07-25 20:03:51 +01:00
|
|
|
/* RSA_check_key performs basic validatity tests on |rsa|. It returns one if
|
|
|
|
* they pass and zero otherwise. Opaque keys and public keys always pass. If it
|
|
|
|
* returns zero then a more detailed error is available on the error queue. */
|
2014-07-31 00:02:14 +01:00
|
|
|
OPENSSL_EXPORT int RSA_check_key(const RSA *rsa);
|
2014-07-25 20:03:51 +01:00
|
|
|
|
2014-07-14 23:28:14 +01:00
|
|
|
/* RSA_recover_crt_params uses |rsa->n|, |rsa->d| and |rsa->e| in order to
|
|
|
|
* calculate the two primes used and thus the precomputed, CRT values. These
|
|
|
|
* values are set in the |p|, |q|, |dmp1|, |dmq1| and |iqmp| members of |rsa|,
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|
|
* which must be |NULL| on entry. It returns one on success and zero
|
|
|
|
* otherwise. */
|
2014-07-31 00:02:14 +01:00
|
|
|
OPENSSL_EXPORT int RSA_recover_crt_params(RSA *rsa);
|
2014-07-14 23:28:14 +01:00
|
|
|
|
|
|
|
|
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|
|
/* ASN.1 functions. */
|
|
|
|
|
|
|
|
/* d2i_RSAPublicKey parses an ASN.1, DER-encoded, RSA public key from |len|
|
|
|
|
* bytes at |*inp|. If |out| is not NULL then, on exit, a pointer to the result
|
|
|
|
* is in |*out|. If |*out| is already non-NULL on entry then the result is
|
|
|
|
* written directly into |*out|, otherwise a fresh |RSA| is allocated. On
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|
|
|
* successful exit, |*inp| is advanced past the DER structure. It returns the
|
|
|
|
* result or NULL on error. */
|
2014-07-31 00:02:14 +01:00
|
|
|
OPENSSL_EXPORT RSA *d2i_RSAPublicKey(RSA **out, const uint8_t **inp, long len);
|
2014-07-14 23:28:14 +01:00
|
|
|
|
|
|
|
/* i2d_RSAPublicKey marshals |in| to an ASN.1, DER structure. If |outp| is not
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|
|
* NULL then the result is written to |*outp| and |*outp| is advanced just past
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|
|
* the output. It returns the number of bytes in the result, whether written or
|
|
|
|
* not, or a negative value on error. */
|
2014-07-31 00:02:14 +01:00
|
|
|
OPENSSL_EXPORT int i2d_RSAPublicKey(const RSA *in, uint8_t **outp);
|
2014-07-14 23:28:14 +01:00
|
|
|
|
|
|
|
/* d2i_RSAPrivateKey parses an ASN.1, DER-encoded, RSA private key from |len|
|
|
|
|
* bytes at |*inp|. If |out| is not NULL then, on exit, a pointer to the result
|
|
|
|
* is in |*out|. If |*out| is already non-NULL on entry then the result is
|
|
|
|
* written directly into |*out|, otherwise a fresh |RSA| is allocated. On
|
|
|
|
* successful exit, |*inp| is advanced past the DER structure. It returns the
|
|
|
|
* result or NULL on error. */
|
2014-07-31 00:02:14 +01:00
|
|
|
OPENSSL_EXPORT RSA *d2i_RSAPrivateKey(RSA **out, const uint8_t **inp, long len);
|
2014-07-14 23:28:14 +01:00
|
|
|
|
|
|
|
/* i2d_RSAPrivateKey marshals |in| to an ASN.1, DER structure. If |outp| is not
|
|
|
|
* NULL then the result is written to |*outp| and |*outp| is advanced just past
|
|
|
|
* the output. It returns the number of bytes in the result, whether written or
|
|
|
|
* not, or a negative value on error. */
|
2014-07-31 00:02:14 +01:00
|
|
|
OPENSSL_EXPORT int i2d_RSAPrivateKey(const RSA *in, uint8_t **outp);
|
2014-07-14 23:28:14 +01:00
|
|
|
|
|
|
|
|
|
|
|
/* ex_data functions.
|
|
|
|
*
|
|
|
|
* These functions are wrappers. See |ex_data.h| for details. */
|
|
|
|
|
2014-07-31 00:02:14 +01:00
|
|
|
OPENSSL_EXPORT int RSA_get_ex_new_index(long argl, void *argp,
|
|
|
|
CRYPTO_EX_new *new_func,
|
|
|
|
CRYPTO_EX_dup *dup_func,
|
|
|
|
CRYPTO_EX_free *free_func);
|
|
|
|
OPENSSL_EXPORT int RSA_set_ex_data(RSA *r, int idx, void *arg);
|
|
|
|
OPENSSL_EXPORT void *RSA_get_ex_data(const RSA *r, int idx);
|
2014-07-14 23:28:14 +01:00
|
|
|
|
2014-07-18 23:39:42 +01:00
|
|
|
/* RSA_FLAG_OPAQUE specifies that this RSA_METHOD does not expose its key
|
|
|
|
* material. This may be set if, for instance, it is wrapping some other crypto
|
|
|
|
* API, like a platform key store. */
|
|
|
|
#define RSA_FLAG_OPAQUE 1
|
2014-07-14 23:28:14 +01:00
|
|
|
|
|
|
|
/* RSA_FLAG_CACHE_PUBLIC causes a precomputed Montgomery context to be created,
|
|
|
|
* on demand, for the public key operations. */
|
|
|
|
#define RSA_FLAG_CACHE_PUBLIC 2
|
|
|
|
|
|
|
|
/* RSA_FLAG_CACHE_PRIVATE causes a precomputed Montgomery context to be
|
|
|
|
* created, on demand, for the private key operations. */
|
|
|
|
#define RSA_FLAG_CACHE_PRIVATE 4
|
|
|
|
|
|
|
|
/* RSA_FLAG_NO_BLINDING disables blinding of private operations. */
|
|
|
|
#define RSA_FLAG_NO_BLINDING 8
|
|
|
|
|
|
|
|
/* RSA_FLAG_EXT_PKEY means that private key operations will be handled by
|
|
|
|
* |mod_exp| and that they do not depend on the private key components being
|
|
|
|
* present: for example a key stored in external hardware. */
|
|
|
|
#define RSA_FLAG_EXT_PKEY 0x20
|
|
|
|
|
|
|
|
/* RSA_FLAG_SIGN_VER causes the |sign| and |verify| functions of |rsa_meth_st|
|
|
|
|
* to be called when set. */
|
|
|
|
#define RSA_FLAG_SIGN_VER 0x40
|
|
|
|
|
|
|
|
|
|
|
|
/* RSA public exponent values. */
|
|
|
|
|
|
|
|
#define RSA_3 0x3
|
|
|
|
#define RSA_F4 0x10001
|
|
|
|
|
|
|
|
|
|
|
|
struct rsa_meth_st {
|
|
|
|
struct openssl_method_common_st common;
|
|
|
|
|
|
|
|
void *app_data;
|
|
|
|
|
|
|
|
int (*init)(RSA *rsa);
|
|
|
|
int (*finish)(RSA *rsa);
|
|
|
|
|
|
|
|
/* size returns the size of the RSA modulus in bytes. */
|
|
|
|
size_t (*size)(const RSA *rsa);
|
|
|
|
|
|
|
|
int (*sign)(int type, const uint8_t *m, unsigned int m_length,
|
|
|
|
uint8_t *sigret, unsigned int *siglen, const RSA *rsa);
|
|
|
|
|
|
|
|
int (*verify)(int dtype, const uint8_t *m, unsigned int m_length,
|
|
|
|
const uint8_t *sigbuf, unsigned int siglen, const RSA *rsa);
|
|
|
|
|
|
|
|
|
|
|
|
/* These functions mirror the |RSA_*| functions of the same name. */
|
|
|
|
int (*encrypt)(RSA *rsa, size_t *out_len, uint8_t *out, size_t max_out,
|
|
|
|
const uint8_t *in, size_t in_len, int padding);
|
|
|
|
int (*sign_raw)(RSA *rsa, size_t *out_len, uint8_t *out, size_t max_out,
|
|
|
|
const uint8_t *in, size_t in_len, int padding);
|
|
|
|
|
|
|
|
int (*decrypt)(RSA *rsa, size_t *out_len, uint8_t *out, size_t max_out,
|
|
|
|
const uint8_t *in, size_t in_len, int padding);
|
|
|
|
int (*verify_raw)(RSA *rsa, size_t *out_len, uint8_t *out, size_t max_out,
|
|
|
|
const uint8_t *in, size_t in_len, int padding);
|
|
|
|
|
2014-08-18 21:29:45 +01:00
|
|
|
/* private_transform takes a big-endian integer from |in|, calculates the
|
|
|
|
* d'th power of it, modulo the RSA modulus and writes the result as a
|
|
|
|
* big-endian integer to |out|. Both |in| and |out| are |len| bytes long and
|
|
|
|
* |len| is always equal to |RSA_size(rsa)|. If the result of the transform
|
|
|
|
* can be represented in fewer than |len| bytes, then |out| must be zero
|
|
|
|
* padded on the left.
|
|
|
|
*
|
|
|
|
* It returns one on success and zero otherwise.
|
|
|
|
*
|
|
|
|
* RSA decrypt and sign operations will call this, thus an ENGINE might wish
|
|
|
|
* to override it in order to avoid having to implement the padding
|
|
|
|
* functionality demanded by those, higher level, operations. */
|
|
|
|
int (*private_transform)(RSA *rsa, uint8_t *out, const uint8_t *in,
|
|
|
|
size_t len);
|
|
|
|
|
2014-07-14 23:28:14 +01:00
|
|
|
int (*mod_exp)(BIGNUM *r0, const BIGNUM *I, RSA *rsa,
|
|
|
|
BN_CTX *ctx); /* Can be null */
|
|
|
|
int (*bn_mod_exp)(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
|
|
|
|
const BIGNUM *m, BN_CTX *ctx,
|
|
|
|
BN_MONT_CTX *m_ctx);
|
|
|
|
|
|
|
|
int flags;
|
|
|
|
|
|
|
|
int (*keygen)(RSA *rsa, int bits, BIGNUM *e, BN_GENCB *cb);
|
2014-11-12 04:47:50 +00:00
|
|
|
|
|
|
|
/* supports_digest returns one if |rsa| supports digests of type
|
|
|
|
* |md|. If null, it is assumed that all digests are supported. */
|
|
|
|
int (*supports_digest)(const RSA *rsa, const EVP_MD *md);
|
2014-07-14 23:28:14 +01:00
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
/* Private functions. */
|
|
|
|
|
|
|
|
typedef struct bn_blinding_st BN_BLINDING;
|
|
|
|
|
|
|
|
struct rsa_st {
|
|
|
|
/* version is only used during ASN.1 (de)serialisation. */
|
|
|
|
long version;
|
|
|
|
RSA_METHOD *meth;
|
|
|
|
|
|
|
|
BIGNUM *n;
|
|
|
|
BIGNUM *e;
|
|
|
|
BIGNUM *d;
|
|
|
|
BIGNUM *p;
|
|
|
|
BIGNUM *q;
|
|
|
|
BIGNUM *dmp1;
|
|
|
|
BIGNUM *dmq1;
|
|
|
|
BIGNUM *iqmp;
|
|
|
|
/* be careful using this if the RSA structure is shared */
|
|
|
|
CRYPTO_EX_DATA ex_data;
|
|
|
|
int references;
|
|
|
|
int flags;
|
|
|
|
|
|
|
|
/* Used to cache montgomery values */
|
|
|
|
BN_MONT_CTX *_method_mod_n;
|
|
|
|
BN_MONT_CTX *_method_mod_p;
|
|
|
|
BN_MONT_CTX *_method_mod_q;
|
|
|
|
|
|
|
|
/* num_blindings contains the size of the |blindings| and |blindings_inuse|
|
|
|
|
* arrays. This member and the |blindings_inuse| array are protected by
|
|
|
|
* CRYPTO_LOCK_RSA_BLINDING. */
|
|
|
|
unsigned num_blindings;
|
|
|
|
/* blindings is an array of BN_BLINDING structures that can be reserved by a
|
|
|
|
* thread by locking CRYPTO_LOCK_RSA_BLINDING and changing the corresponding
|
|
|
|
* element in |blindings_inuse| from 0 to 1. */
|
|
|
|
BN_BLINDING **blindings;
|
|
|
|
unsigned char *blindings_inuse;
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
#if defined(__cplusplus)
|
|
|
|
} /* extern C */
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#define RSA_F_RSA_padding_check_none 100
|
|
|
|
#define RSA_F_RSA_padding_add_none 101
|
|
|
|
#define RSA_F_RSA_padding_check_PKCS1_OAEP_mgf1 102
|
|
|
|
#define RSA_F_RSA_verify_PKCS1_PSS_mgf1 103
|
|
|
|
#define RSA_F_RSA_padding_add_PKCS1_PSS_mgf1 104
|
|
|
|
#define RSA_F_RSA_verify 105
|
|
|
|
#define RSA_F_rsa_setup_blinding 106
|
|
|
|
#define RSA_F_verify_raw 107
|
|
|
|
#define RSA_F_RSA_padding_add_PKCS1_type_1 108
|
|
|
|
#define RSA_F_keygen 109
|
|
|
|
#define RSA_F_RSA_padding_add_PKCS1_OAEP_mgf1 110
|
|
|
|
#define RSA_F_pkcs1_prefixed_msg 111
|
|
|
|
#define RSA_F_BN_BLINDING_update 112
|
|
|
|
#define RSA_F_RSA_padding_check_SSLv23 113
|
|
|
|
#define RSA_F_RSA_padding_add_SSLv23 114
|
|
|
|
#define RSA_F_BN_BLINDING_new 115
|
|
|
|
#define RSA_F_RSA_padding_add_PKCS1_type_2 116
|
|
|
|
#define RSA_F_BN_BLINDING_convert_ex 117
|
|
|
|
#define RSA_F_BN_BLINDING_invert_ex 118
|
|
|
|
#define RSA_F_encrypt 119
|
|
|
|
#define RSA_F_sign_raw 120
|
|
|
|
#define RSA_F_RSA_new_method 121
|
|
|
|
#define RSA_F_RSA_padding_check_PKCS1_type_1 122
|
|
|
|
#define RSA_F_RSA_sign 123
|
|
|
|
#define RSA_F_BN_BLINDING_create_param 124
|
|
|
|
#define RSA_F_decrypt 125
|
|
|
|
#define RSA_F_RSA_padding_check_PKCS1_type_2 126
|
|
|
|
#define RSA_F_RSA_recover_crt_params 127
|
2014-07-25 20:03:51 +01:00
|
|
|
#define RSA_F_RSA_check_key 128
|
2014-08-18 21:29:45 +01:00
|
|
|
#define RSA_F_private_transform 129
|
2014-07-14 23:28:14 +01:00
|
|
|
#define RSA_R_INVALID_MESSAGE_LENGTH 100
|
|
|
|
#define RSA_R_NO_PUBLIC_EXPONENT 102
|
|
|
|
#define RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE 103
|
|
|
|
#define RSA_R_BLOCK_TYPE_IS_NOT_01 104
|
|
|
|
#define RSA_R_DATA_TOO_SMALL_FOR_KEY_SIZE 105
|
|
|
|
#define RSA_R_UNKNOWN_PADDING_TYPE 106
|
|
|
|
#define RSA_R_TOO_MANY_ITERATIONS 107
|
|
|
|
#define RSA_R_SLEN_RECOVERY_FAILED 108
|
|
|
|
#define RSA_R_WRONG_SIGNATURE_LENGTH 109
|
|
|
|
#define RSA_R_MODULUS_TOO_LARGE 110
|
|
|
|
#define RSA_R_NULL_BEFORE_BLOCK_MISSING 111
|
|
|
|
#define RSA_R_DATA_TOO_LARGE 112
|
|
|
|
#define RSA_R_OUTPUT_BUFFER_TOO_SMALL 113
|
|
|
|
#define RSA_R_SLEN_CHECK_FAILED 114
|
|
|
|
#define RSA_R_FIRST_OCTET_INVALID 115
|
|
|
|
#define RSA_R_BAD_E_VALUE 116
|
|
|
|
#define RSA_R_DATA_TOO_LARGE_FOR_MODULUS 117
|
|
|
|
#define RSA_R_EMPTY_PUBLIC_KEY 118
|
|
|
|
#define RSA_R_BAD_PAD_BYTE_COUNT 119
|
|
|
|
#define RSA_R_OAEP_DECODING_ERROR 120
|
|
|
|
#define RSA_R_TOO_LONG 121
|
|
|
|
#define RSA_R_BAD_FIXED_HEADER_DECRYPT 122
|
|
|
|
#define RSA_R_DATA_TOO_SMALL 123
|
|
|
|
#define RSA_R_UNKNOWN_ALGORITHM_TYPE 124
|
|
|
|
#define RSA_R_PADDING_CHECK_FAILED 125
|
|
|
|
#define RSA_R_THE_ASN1_OBJECT_IDENTIFIER_IS_NOT_KNOWN_FOR_THIS_MD 126
|
|
|
|
#define RSA_R_BLOCK_TYPE_IS_NOT_02 127
|
|
|
|
#define RSA_R_LAST_OCTET_INVALID 128
|
|
|
|
#define RSA_R_DIGEST_TOO_BIG_FOR_RSA_KEY 129
|
|
|
|
#define RSA_R_SSLV3_ROLLBACK_ATTACK 130
|
|
|
|
#define RSA_R_KEY_SIZE_TOO_SMALL 131
|
|
|
|
#define RSA_R_BAD_SIGNATURE 132
|
|
|
|
#define RSA_R_BN_NOT_INITIALIZED 133
|
|
|
|
#define RSA_R_PKCS_DECODING_ERROR 134
|
|
|
|
#define RSA_R_BAD_RSA_PARAMETERS 135
|
|
|
|
#define RSA_R_INTERNAL_ERROR 136
|
|
|
|
#define RSA_R_CRT_PARAMS_ALREADY_GIVEN 137
|
2014-07-25 20:03:51 +01:00
|
|
|
#define RSA_R_D_E_NOT_CONGRUENT_TO_1 138
|
|
|
|
#define RSA_R_VALUE_MISSING 139
|
|
|
|
#define RSA_R_N_NOT_EQUAL_P_Q 140
|
|
|
|
#define RSA_R_CRT_VALUES_INCORRECT 141
|
|
|
|
#define RSA_R_INCONSISTENT_SET_OF_CRT_VALUES 142
|
|
|
|
#define RSA_R_ONLY_ONE_OF_P_Q_GIVEN 143
|
2014-08-18 21:29:45 +01:00
|
|
|
#define RSA_R_DATA_LEN_NOT_EQUAL_TO_MOD_LEN 144
|
2014-07-14 23:28:14 +01:00
|
|
|
|
|
|
|
#endif /* OPENSSL_HEADER_RSA_H */
|