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  1. /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  2. * All rights reserved.
  3. *
  4. * This package is an SSL implementation written
  5. * by Eric Young (eay@cryptsoft.com).
  6. * The implementation was written so as to conform with Netscapes SSL.
  7. *
  8. * This library is free for commercial and non-commercial use as long as
  9. * the following conditions are aheared to. The following conditions
  10. * apply to all code found in this distribution, be it the RC4, RSA,
  11. * lhash, DES, etc., code; not just the SSL code. The SSL documentation
  12. * included with this distribution is covered by the same copyright terms
  13. * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  14. *
  15. * Copyright remains Eric Young's, and as such any Copyright notices in
  16. * the code are not to be removed.
  17. * If this package is used in a product, Eric Young should be given attribution
  18. * as the author of the parts of the library used.
  19. * This can be in the form of a textual message at program startup or
  20. * in documentation (online or textual) provided with the package.
  21. *
  22. * Redistribution and use in source and binary forms, with or without
  23. * modification, are permitted provided that the following conditions
  24. * are met:
  25. * 1. Redistributions of source code must retain the copyright
  26. * notice, this list of conditions and the following disclaimer.
  27. * 2. Redistributions in binary form must reproduce the above copyright
  28. * notice, this list of conditions and the following disclaimer in the
  29. * documentation and/or other materials provided with the distribution.
  30. * 3. All advertising materials mentioning features or use of this software
  31. * must display the following acknowledgement:
  32. * "This product includes cryptographic software written by
  33. * Eric Young (eay@cryptsoft.com)"
  34. * The word 'cryptographic' can be left out if the rouines from the library
  35. * being used are not cryptographic related :-).
  36. * 4. If you include any Windows specific code (or a derivative thereof) from
  37. * the apps directory (application code) you must include an acknowledgement:
  38. * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  39. *
  40. * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  41. * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  42. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  43. * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  44. * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  45. * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  46. * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  47. * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  48. * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  49. * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  50. * SUCH DAMAGE.
  51. *
  52. * The licence and distribution terms for any publically available version or
  53. * derivative of this code cannot be changed. i.e. this code cannot simply be
  54. * copied and put under another distribution licence
  55. * [including the GNU Public Licence.] */
  56. #ifndef OPENSSL_HEADER_RSA_H
  57. #define OPENSSL_HEADER_RSA_H
  58. #include <openssl/base.h>
  59. #include <openssl/engine.h>
  60. #include <openssl/ex_data.h>
  61. #include <openssl/thread.h>
  62. #if defined(__cplusplus)
  63. extern "C" {
  64. #endif
  65. /* rsa.h contains functions for handling encryption and signature using RSA. */
  66. /* Allocation and destruction. */
  67. /* RSA_new returns a new, empty RSA object or NULL on error. */
  68. OPENSSL_EXPORT RSA *RSA_new(void);
  69. /* RSA_new_method acts the same as |RSA_new| but takes an explicit |ENGINE|. */
  70. OPENSSL_EXPORT RSA *RSA_new_method(const ENGINE *engine);
  71. /* RSA_free decrements the reference count of |rsa| and frees it if the
  72. * reference count drops to zero. */
  73. OPENSSL_EXPORT void RSA_free(RSA *rsa);
  74. /* RSA_up_ref increments the reference count of |rsa|. */
  75. OPENSSL_EXPORT int RSA_up_ref(RSA *rsa);
  76. /* Key generation. */
  77. /* RSA_generate_key_ex generates a new RSA key where the modulus has size
  78. * |bits| and the public exponent is |e|. If unsure, |RSA_F4| is a good value
  79. * for |e|. If |cb| is not NULL then it is called during the key generation
  80. * process. In addition to the calls documented for |BN_generate_prime_ex|, it
  81. * is called with event=2 when the n'th prime is rejected as unsuitable and
  82. * with event=3 when a suitable value for |p| is found.
  83. *
  84. * It returns one on success or zero on error. */
  85. OPENSSL_EXPORT int RSA_generate_key_ex(RSA *rsa, int bits, BIGNUM *e,
  86. BN_GENCB *cb);
  87. /* Encryption / Decryption */
  88. /* Padding types for encryption. */
  89. #define RSA_PKCS1_PADDING 1
  90. #define RSA_NO_PADDING 3
  91. #define RSA_PKCS1_OAEP_PADDING 4
  92. /* RSA_PKCS1_PSS_PADDING can only be used via the EVP interface. */
  93. #define RSA_PKCS1_PSS_PADDING 6
  94. /* RSA_encrypt encrypts |in_len| bytes from |in| to the public key from |rsa|
  95. * and writes, at most, |max_out| bytes of encrypted data to |out|. The
  96. * |max_out| argument must be, at least, |RSA_size| in order to ensure success.
  97. *
  98. * It returns 1 on success or zero on error.
  99. *
  100. * The |padding| argument must be one of the |RSA_*_PADDING| values. If in
  101. * doubt, |RSA_PKCS1_PADDING| is the most common but |RSA_PKCS1_OAEP_PADDING|
  102. * is the most secure. */
  103. OPENSSL_EXPORT int RSA_encrypt(RSA *rsa, size_t *out_len, uint8_t *out,
  104. size_t max_out, const uint8_t *in, size_t in_len,
  105. int padding);
  106. /* RSA_decrypt decrypts |in_len| bytes from |in| with the private key from
  107. * |rsa| and writes, at most, |max_out| bytes of plaintext to |out|. The
  108. * |max_out| argument must be, at least, |RSA_size| in order to ensure success.
  109. *
  110. * It returns 1 on success or zero on error.
  111. *
  112. * The |padding| argument must be one of the |RSA_*_PADDING| values. If in
  113. * doubt, |RSA_PKCS1_PADDING| is the most common but |RSA_PKCS1_OAEP_PADDING|
  114. * is the most secure. */
  115. OPENSSL_EXPORT int RSA_decrypt(RSA *rsa, size_t *out_len, uint8_t *out,
  116. size_t max_out, const uint8_t *in, size_t in_len,
  117. int padding);
  118. /* RSA_public_encrypt encrypts |flen| bytes from |from| to the public key in
  119. * |rsa| and writes the encrypted data to |to|. The |to| buffer must have at
  120. * least |RSA_size| bytes of space. It returns the number of bytes written, or
  121. * -1 on error. The |padding| argument must be one of the |RSA_*_PADDING|
  122. * values. If in doubt, |RSA_PKCS1_PADDING| is the most common but
  123. * |RSA_PKCS1_OAEP_PADDING| is the most secure.
  124. *
  125. * WARNING: this function is dangerous because it breaks the usual return value
  126. * convention. Use |RSA_encrypt| instead. */
  127. OPENSSL_EXPORT int RSA_public_encrypt(int flen, const uint8_t *from,
  128. uint8_t *to, RSA *rsa, int padding);
  129. /* RSA_private_decrypt decrypts |flen| bytes from |from| with the public key in
  130. * |rsa| and writes the plaintext to |to|. The |to| buffer must have at
  131. * least |RSA_size| bytes of space. It returns the number of bytes written, or
  132. * -1 on error. The |padding| argument must be one of the |RSA_*_PADDING|
  133. * values. If in doubt, |RSA_PKCS1_PADDING| is the most common but
  134. * |RSA_PKCS1_OAEP_PADDING| is the most secure.
  135. *
  136. * WARNING: this function is dangerous because it breaks the usual return value
  137. * convention. Use |RSA_decrypt| instead. */
  138. OPENSSL_EXPORT int RSA_private_decrypt(int flen, const uint8_t *from,
  139. uint8_t *to, RSA *rsa, int padding);
  140. /* RSA_message_index_PKCS1_type_2 performs the first step of a PKCS #1 padding
  141. * check for decryption. If the |from_len| bytes pointed to at |from| are a
  142. * valid PKCS #1 message, it returns one and sets |*out_index| to the start of
  143. * the unpadded message. The unpadded message is a suffix of the input and has
  144. * length |from_len - *out_index|. Otherwise, it returns zero and sets
  145. * |*out_index| to zero. This function runs in time independent of the input
  146. * data and is intended to be used directly to avoid Bleichenbacher's attack.
  147. *
  148. * WARNING: This function behaves differently from the usual OpenSSL convention
  149. * in that it does NOT put an error on the queue in the error case. */
  150. OPENSSL_EXPORT int RSA_message_index_PKCS1_type_2(const uint8_t *from,
  151. size_t from_len,
  152. size_t *out_index);
  153. /* Signing / Verification */
  154. /* RSA_sign signs |in_len| bytes of digest from |in| with |rsa| and writes, at
  155. * most, |RSA_size(rsa)| bytes to |out|. On successful return, the actual
  156. * number of bytes written is written to |*out_len|.
  157. *
  158. * The |hash_nid| argument identifies the hash function used to calculate |in|
  159. * and is embedded in the resulting signature. For example, it might be
  160. * |NID_sha256|.
  161. *
  162. * It returns 1 on success and zero on error. */
  163. OPENSSL_EXPORT int RSA_sign(int hash_nid, const uint8_t *in,
  164. unsigned int in_len, uint8_t *out,
  165. unsigned int *out_len, RSA *rsa);
  166. /* RSA_sign_raw signs |in_len| bytes from |in| with the public key from |rsa|
  167. * and writes, at most, |max_out| bytes of signature data to |out|. The
  168. * |max_out| argument must be, at least, |RSA_size| in order to ensure success.
  169. *
  170. * It returns 1 on success or zero on error.
  171. *
  172. * The |padding| argument must be one of the |RSA_*_PADDING| values. If in
  173. * doubt, |RSA_PKCS1_PADDING| is the most common. */
  174. OPENSSL_EXPORT int RSA_sign_raw(RSA *rsa, size_t *out_len, uint8_t *out,
  175. size_t max_out, const uint8_t *in,
  176. size_t in_len, int padding);
  177. /* RSA_verify verifies that |sig_len| bytes from |sig| are a valid, PKCS#1
  178. * signature of |msg_len| bytes at |msg| by |rsa|.
  179. *
  180. * The |hash_nid| argument identifies the hash function used to calculate |in|
  181. * and is embedded in the resulting signature in order to prevent hash
  182. * confusion attacks. For example, it might be |NID_sha256|.
  183. *
  184. * It returns one if the signature is valid and zero otherwise.
  185. *
  186. * WARNING: this differs from the original, OpenSSL function which additionally
  187. * returned -1 on error. */
  188. OPENSSL_EXPORT int RSA_verify(int hash_nid, const uint8_t *msg, size_t msg_len,
  189. const uint8_t *sig, size_t sig_len, RSA *rsa);
  190. /* RSA_verify_raw verifies |in_len| bytes of signature from |in| using the
  191. * public key from |rsa| and writes, at most, |max_out| bytes of plaintext to
  192. * |out|. The |max_out| argument must be, at least, |RSA_size| in order to
  193. * ensure success.
  194. *
  195. * It returns 1 on success or zero on error.
  196. *
  197. * The |padding| argument must be one of the |RSA_*_PADDING| values. If in
  198. * doubt, |RSA_PKCS1_PADDING| is the most common. */
  199. OPENSSL_EXPORT int RSA_verify_raw(RSA *rsa, size_t *out_len, uint8_t *out,
  200. size_t max_out, const uint8_t *in,
  201. size_t in_len, int padding);
  202. /* RSA_private_encrypt encrypts |flen| bytes from |from| with the private key in
  203. * |rsa| and writes the encrypted data to |to|. The |to| buffer must have at
  204. * least |RSA_size| bytes of space. It returns the number of bytes written, or
  205. * -1 on error. The |padding| argument must be one of the |RSA_*_PADDING|
  206. * values. If in doubt, |RSA_PKCS1_PADDING| is the most common.
  207. *
  208. * WARNING: this function is dangerous because it breaks the usual return value
  209. * convention. Use |RSA_sign_raw| instead. */
  210. OPENSSL_EXPORT int RSA_private_encrypt(int flen, const uint8_t *from,
  211. uint8_t *to, RSA *rsa, int padding);
  212. /* RSA_private_encrypt verifies |flen| bytes of signature from |from| using the
  213. * public key in |rsa| and writes the plaintext to |to|. The |to| buffer must
  214. * have at least |RSA_size| bytes of space. It returns the number of bytes
  215. * written, or -1 on error. The |padding| argument must be one of the
  216. * |RSA_*_PADDING| values. If in doubt, |RSA_PKCS1_PADDING| is the most common.
  217. *
  218. * WARNING: this function is dangerous because it breaks the usual return value
  219. * convention. Use |RSA_verify_raw| instead. */
  220. OPENSSL_EXPORT int RSA_public_decrypt(int flen, const uint8_t *from,
  221. uint8_t *to, RSA *rsa, int padding);
  222. /* Utility functions. */
  223. /* RSA_size returns the number of bytes in the modulus, which is also the size
  224. * of a signature or encrypted value using |rsa|. */
  225. OPENSSL_EXPORT unsigned RSA_size(const RSA *rsa);
  226. /* RSA_is_opaque returns one if |rsa| is opaque and doesn't expose its key
  227. * material. Otherwise it returns zero. */
  228. OPENSSL_EXPORT int RSA_is_opaque(const RSA *rsa);
  229. /* RSA_supports_digest returns one if |rsa| supports signing digests
  230. * of type |md|. Otherwise it returns zero. */
  231. OPENSSL_EXPORT int RSA_supports_digest(const RSA *rsa, const EVP_MD *md);
  232. /* RSAPublicKey_dup allocates a fresh |RSA| and copies the private key from
  233. * |rsa| into it. It returns the fresh |RSA| object, or NULL on error. */
  234. OPENSSL_EXPORT RSA *RSAPublicKey_dup(const RSA *rsa);
  235. /* RSAPrivateKey_dup allocates a fresh |RSA| and copies the private key from
  236. * |rsa| into it. It returns the fresh |RSA| object, or NULL on error. */
  237. OPENSSL_EXPORT RSA *RSAPrivateKey_dup(const RSA *rsa);
  238. /* RSA_check_key performs basic validatity tests on |rsa|. It returns one if
  239. * they pass and zero otherwise. Opaque keys and public keys always pass. If it
  240. * returns zero then a more detailed error is available on the error queue. */
  241. OPENSSL_EXPORT int RSA_check_key(const RSA *rsa);
  242. /* RSA_recover_crt_params uses |rsa->n|, |rsa->d| and |rsa->e| in order to
  243. * calculate the two primes used and thus the precomputed, CRT values. These
  244. * values are set in the |p|, |q|, |dmp1|, |dmq1| and |iqmp| members of |rsa|,
  245. * which must be |NULL| on entry. It returns one on success and zero
  246. * otherwise. */
  247. OPENSSL_EXPORT int RSA_recover_crt_params(RSA *rsa);
  248. /* RSA_verify_PKCS1_PSS_mgf1 verifies that |EM| is a correct PSS padding of
  249. * |mHash|, where |mHash| is a digest produced by |Hash|. |EM| must point to
  250. * exactly |RSA_size(rsa)| bytes of data. The |mgf1Hash| argument specifies the
  251. * hash function for generating the mask. If NULL, |Hash| is used. The |sLen|
  252. * argument specifies the expected salt length in bytes. If |sLen| is -1 then
  253. * the salt length is the same as the hash length. If -2, then the salt length
  254. * is maximal and is taken from the size of |EM|.
  255. *
  256. * It returns one on success or zero on error. */
  257. OPENSSL_EXPORT int RSA_verify_PKCS1_PSS_mgf1(RSA *rsa, const uint8_t *mHash,
  258. const EVP_MD *Hash,
  259. const EVP_MD *mgf1Hash,
  260. const uint8_t *EM, int sLen);
  261. /* RSA_padding_add_PKCS1_PSS_mgf1 writes a PSS padding of |mHash| to |EM|,
  262. * where |mHash| is a digest produced by |Hash|. |RSA_size(rsa)| bytes of
  263. * output will be written to |EM|. The |mgf1Hash| argument specifies the hash
  264. * function for generating the mask. If NULL, |Hash| is used. The |sLen|
  265. * argument specifies the expected salt length in bytes. If |sLen| is -1 then
  266. * the salt length is the same as the hash length. If -2, then the salt length
  267. * is maximal given the space in |EM|.
  268. *
  269. * It returns one on success or zero on error. */
  270. OPENSSL_EXPORT int RSA_padding_add_PKCS1_PSS_mgf1(RSA *rsa, uint8_t *EM,
  271. const uint8_t *mHash,
  272. const EVP_MD *Hash,
  273. const EVP_MD *mgf1Hash,
  274. int sLen);
  275. /* ASN.1 functions. */
  276. /* d2i_RSAPublicKey parses an ASN.1, DER-encoded, RSA public key from |len|
  277. * bytes at |*inp|. If |out| is not NULL then, on exit, a pointer to the result
  278. * is in |*out|. If |*out| is already non-NULL on entry then the result is
  279. * written directly into |*out|, otherwise a fresh |RSA| is allocated. On
  280. * successful exit, |*inp| is advanced past the DER structure. It returns the
  281. * result or NULL on error. */
  282. OPENSSL_EXPORT RSA *d2i_RSAPublicKey(RSA **out, const uint8_t **inp, long len);
  283. /* i2d_RSAPublicKey marshals |in| to an ASN.1, DER structure. If |outp| is not
  284. * NULL then the result is written to |*outp| and |*outp| is advanced just past
  285. * the output. It returns the number of bytes in the result, whether written or
  286. * not, or a negative value on error. */
  287. OPENSSL_EXPORT int i2d_RSAPublicKey(const RSA *in, uint8_t **outp);
  288. /* d2i_RSAPrivateKey parses an ASN.1, DER-encoded, RSA private key from |len|
  289. * bytes at |*inp|. If |out| is not NULL then, on exit, a pointer to the result
  290. * is in |*out|. If |*out| is already non-NULL on entry then the result is
  291. * written directly into |*out|, otherwise a fresh |RSA| is allocated. On
  292. * successful exit, |*inp| is advanced past the DER structure. It returns the
  293. * result or NULL on error. */
  294. OPENSSL_EXPORT RSA *d2i_RSAPrivateKey(RSA **out, const uint8_t **inp, long len);
  295. /* i2d_RSAPrivateKey marshals |in| to an ASN.1, DER structure. If |outp| is not
  296. * NULL then the result is written to |*outp| and |*outp| is advanced just past
  297. * the output. It returns the number of bytes in the result, whether written or
  298. * not, or a negative value on error. */
  299. OPENSSL_EXPORT int i2d_RSAPrivateKey(const RSA *in, uint8_t **outp);
  300. /* ex_data functions.
  301. *
  302. * See |ex_data.h| for details. */
  303. OPENSSL_EXPORT int RSA_get_ex_new_index(long argl, void *argp,
  304. CRYPTO_EX_new *new_func,
  305. CRYPTO_EX_dup *dup_func,
  306. CRYPTO_EX_free *free_func);
  307. OPENSSL_EXPORT int RSA_set_ex_data(RSA *r, int idx, void *arg);
  308. OPENSSL_EXPORT void *RSA_get_ex_data(const RSA *r, int idx);
  309. /* RSA_FLAG_OPAQUE specifies that this RSA_METHOD does not expose its key
  310. * material. This may be set if, for instance, it is wrapping some other crypto
  311. * API, like a platform key store. */
  312. #define RSA_FLAG_OPAQUE 1
  313. /* RSA_FLAG_CACHE_PUBLIC causes a precomputed Montgomery context to be created,
  314. * on demand, for the public key operations. */
  315. #define RSA_FLAG_CACHE_PUBLIC 2
  316. /* RSA_FLAG_CACHE_PRIVATE causes a precomputed Montgomery context to be
  317. * created, on demand, for the private key operations. */
  318. #define RSA_FLAG_CACHE_PRIVATE 4
  319. /* RSA_FLAG_NO_BLINDING disables blinding of private operations. */
  320. #define RSA_FLAG_NO_BLINDING 8
  321. /* RSA_FLAG_EXT_PKEY means that private key operations will be handled by
  322. * |mod_exp| and that they do not depend on the private key components being
  323. * present: for example a key stored in external hardware. */
  324. #define RSA_FLAG_EXT_PKEY 0x20
  325. /* RSA_FLAG_SIGN_VER causes the |sign| and |verify| functions of |rsa_meth_st|
  326. * to be called when set. */
  327. #define RSA_FLAG_SIGN_VER 0x40
  328. /* RSA public exponent values. */
  329. #define RSA_3 0x3
  330. #define RSA_F4 0x10001
  331. /* Deprecated functions. */
  332. /* RSA_blinding_on returns one. */
  333. OPENSSL_EXPORT int RSA_blinding_on(RSA *rsa, BN_CTX *ctx);
  334. struct rsa_meth_st {
  335. struct openssl_method_common_st common;
  336. void *app_data;
  337. int (*init)(RSA *rsa);
  338. int (*finish)(RSA *rsa);
  339. /* size returns the size of the RSA modulus in bytes. */
  340. size_t (*size)(const RSA *rsa);
  341. int (*sign)(int type, const uint8_t *m, unsigned int m_length,
  342. uint8_t *sigret, unsigned int *siglen, const RSA *rsa);
  343. int (*verify)(int dtype, const uint8_t *m, unsigned int m_length,
  344. const uint8_t *sigbuf, unsigned int siglen, const RSA *rsa);
  345. /* These functions mirror the |RSA_*| functions of the same name. */
  346. int (*encrypt)(RSA *rsa, size_t *out_len, uint8_t *out, size_t max_out,
  347. const uint8_t *in, size_t in_len, int padding);
  348. int (*sign_raw)(RSA *rsa, size_t *out_len, uint8_t *out, size_t max_out,
  349. const uint8_t *in, size_t in_len, int padding);
  350. int (*decrypt)(RSA *rsa, size_t *out_len, uint8_t *out, size_t max_out,
  351. const uint8_t *in, size_t in_len, int padding);
  352. int (*verify_raw)(RSA *rsa, size_t *out_len, uint8_t *out, size_t max_out,
  353. const uint8_t *in, size_t in_len, int padding);
  354. /* private_transform takes a big-endian integer from |in|, calculates the
  355. * d'th power of it, modulo the RSA modulus and writes the result as a
  356. * big-endian integer to |out|. Both |in| and |out| are |len| bytes long and
  357. * |len| is always equal to |RSA_size(rsa)|. If the result of the transform
  358. * can be represented in fewer than |len| bytes, then |out| must be zero
  359. * padded on the left.
  360. *
  361. * It returns one on success and zero otherwise.
  362. *
  363. * RSA decrypt and sign operations will call this, thus an ENGINE might wish
  364. * to override it in order to avoid having to implement the padding
  365. * functionality demanded by those, higher level, operations. */
  366. int (*private_transform)(RSA *rsa, uint8_t *out, const uint8_t *in,
  367. size_t len);
  368. int (*mod_exp)(BIGNUM *r0, const BIGNUM *I, RSA *rsa,
  369. BN_CTX *ctx); /* Can be null */
  370. int (*bn_mod_exp)(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
  371. const BIGNUM *m, BN_CTX *ctx,
  372. BN_MONT_CTX *m_ctx);
  373. int flags;
  374. int (*keygen)(RSA *rsa, int bits, BIGNUM *e, BN_GENCB *cb);
  375. /* supports_digest returns one if |rsa| supports digests of type
  376. * |md|. If null, it is assumed that all digests are supported. */
  377. int (*supports_digest)(const RSA *rsa, const EVP_MD *md);
  378. };
  379. /* Private functions. */
  380. typedef struct bn_blinding_st BN_BLINDING;
  381. struct rsa_st {
  382. /* version is only used during ASN.1 (de)serialisation. */
  383. long version;
  384. RSA_METHOD *meth;
  385. BIGNUM *n;
  386. BIGNUM *e;
  387. BIGNUM *d;
  388. BIGNUM *p;
  389. BIGNUM *q;
  390. BIGNUM *dmp1;
  391. BIGNUM *dmq1;
  392. BIGNUM *iqmp;
  393. /* be careful using this if the RSA structure is shared */
  394. CRYPTO_EX_DATA ex_data;
  395. int references;
  396. int flags;
  397. CRYPTO_MUTEX lock;
  398. /* Used to cache montgomery values. The creation of these values is protected
  399. * by |lock|. */
  400. BN_MONT_CTX *_method_mod_n;
  401. BN_MONT_CTX *_method_mod_p;
  402. BN_MONT_CTX *_method_mod_q;
  403. /* num_blindings contains the size of the |blindings| and |blindings_inuse|
  404. * arrays. This member and the |blindings_inuse| array are protected by
  405. * |lock|. */
  406. unsigned num_blindings;
  407. /* blindings is an array of BN_BLINDING structures that can be reserved by a
  408. * thread by locking |lock| and changing the corresponding element in
  409. * |blindings_inuse| from 0 to 1. */
  410. BN_BLINDING **blindings;
  411. unsigned char *blindings_inuse;
  412. };
  413. #if defined(__cplusplus)
  414. } /* extern C */
  415. #endif
  416. #define RSA_F_BN_BLINDING_convert_ex 100
  417. #define RSA_F_BN_BLINDING_create_param 101
  418. #define RSA_F_BN_BLINDING_invert_ex 102
  419. #define RSA_F_BN_BLINDING_new 103
  420. #define RSA_F_BN_BLINDING_update 104
  421. #define RSA_F_RSA_check_key 105
  422. #define RSA_F_RSA_new_method 106
  423. #define RSA_F_RSA_padding_add_PKCS1_OAEP_mgf1 107
  424. #define RSA_F_RSA_padding_add_PKCS1_PSS_mgf1 108
  425. #define RSA_F_RSA_padding_add_PKCS1_type_1 109
  426. #define RSA_F_RSA_padding_add_PKCS1_type_2 110
  427. #define RSA_F_RSA_padding_add_none 111
  428. #define RSA_F_RSA_padding_check_PKCS1_OAEP_mgf1 112
  429. #define RSA_F_RSA_padding_check_PKCS1_type_1 113
  430. #define RSA_F_RSA_padding_check_PKCS1_type_2 114
  431. #define RSA_F_RSA_padding_check_none 115
  432. #define RSA_F_RSA_recover_crt_params 116
  433. #define RSA_F_RSA_sign 117
  434. #define RSA_F_RSA_verify 118
  435. #define RSA_F_RSA_verify_PKCS1_PSS_mgf1 119
  436. #define RSA_F_decrypt 120
  437. #define RSA_F_encrypt 121
  438. #define RSA_F_keygen 122
  439. #define RSA_F_pkcs1_prefixed_msg 123
  440. #define RSA_F_private_transform 124
  441. #define RSA_F_rsa_setup_blinding 125
  442. #define RSA_F_sign_raw 126
  443. #define RSA_F_verify_raw 127
  444. #define RSA_R_BAD_E_VALUE 100
  445. #define RSA_R_BAD_FIXED_HEADER_DECRYPT 101
  446. #define RSA_R_BAD_PAD_BYTE_COUNT 102
  447. #define RSA_R_BAD_RSA_PARAMETERS 103
  448. #define RSA_R_BAD_SIGNATURE 104
  449. #define RSA_R_BLOCK_TYPE_IS_NOT_01 105
  450. #define RSA_R_BN_NOT_INITIALIZED 106
  451. #define RSA_R_CRT_PARAMS_ALREADY_GIVEN 107
  452. #define RSA_R_CRT_VALUES_INCORRECT 108
  453. #define RSA_R_DATA_LEN_NOT_EQUAL_TO_MOD_LEN 109
  454. #define RSA_R_DATA_TOO_LARGE 110
  455. #define RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE 111
  456. #define RSA_R_DATA_TOO_LARGE_FOR_MODULUS 112
  457. #define RSA_R_DATA_TOO_SMALL 113
  458. #define RSA_R_DATA_TOO_SMALL_FOR_KEY_SIZE 114
  459. #define RSA_R_DIGEST_TOO_BIG_FOR_RSA_KEY 115
  460. #define RSA_R_D_E_NOT_CONGRUENT_TO_1 116
  461. #define RSA_R_EMPTY_PUBLIC_KEY 117
  462. #define RSA_R_FIRST_OCTET_INVALID 118
  463. #define RSA_R_INCONSISTENT_SET_OF_CRT_VALUES 119
  464. #define RSA_R_INTERNAL_ERROR 120
  465. #define RSA_R_INVALID_MESSAGE_LENGTH 121
  466. #define RSA_R_KEY_SIZE_TOO_SMALL 122
  467. #define RSA_R_LAST_OCTET_INVALID 123
  468. #define RSA_R_MODULUS_TOO_LARGE 124
  469. #define RSA_R_NO_PUBLIC_EXPONENT 125
  470. #define RSA_R_NULL_BEFORE_BLOCK_MISSING 126
  471. #define RSA_R_N_NOT_EQUAL_P_Q 127
  472. #define RSA_R_OAEP_DECODING_ERROR 128
  473. #define RSA_R_ONLY_ONE_OF_P_Q_GIVEN 129
  474. #define RSA_R_OUTPUT_BUFFER_TOO_SMALL 130
  475. #define RSA_R_PADDING_CHECK_FAILED 131
  476. #define RSA_R_PKCS_DECODING_ERROR 132
  477. #define RSA_R_SLEN_CHECK_FAILED 133
  478. #define RSA_R_SLEN_RECOVERY_FAILED 134
  479. #define RSA_R_TOO_LONG 135
  480. #define RSA_R_TOO_MANY_ITERATIONS 136
  481. #define RSA_R_UNKNOWN_ALGORITHM_TYPE 137
  482. #define RSA_R_UNKNOWN_PADDING_TYPE 138
  483. #define RSA_R_VALUE_MISSING 139
  484. #define RSA_R_WRONG_SIGNATURE_LENGTH 140
  485. #endif /* OPENSSL_HEADER_RSA_H */