rsa.h
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- /* crypto/rsa/rsa.h */
- /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
- *
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to. The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code. The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * "This product includes cryptographic software written by
- * Eric Young (eay@cryptsoft.com)"
- * The word 'cryptographic' can be left out if the rouines from the library
- * being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- * the apps directory (application code) you must include an acknowledgement:
- * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed. i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
- */
- #ifndef HEADER_RSA_H
- #define HEADER_RSA_H
- #include <openssl/asn1.h>
- #ifndef OPENSSL_NO_BIO
- #include <openssl/bio.h>
- #endif
- #include <openssl/crypto.h>
- #include <openssl/ossl_typ.h>
- #ifndef OPENSSL_NO_DEPRECATED
- #include <openssl/bn.h>
- #endif
- #ifdef OPENSSL_NO_RSA
- #error RSA is disabled.
- #endif
- #ifdef __cplusplus
- extern "C" {
- #endif
- /* Declared already in ossl_typ.h */
- /* typedef struct rsa_st RSA; */
- /* typedef struct rsa_meth_st RSA_METHOD; */
- struct rsa_meth_st
- {
- const char *name;
- int (*rsa_pub_enc)(int flen,const unsigned char *from,
- unsigned char *to,
- RSA *rsa,int padding);
- int (*rsa_pub_dec)(int flen,const unsigned char *from,
- unsigned char *to,
- RSA *rsa,int padding);
- int (*rsa_priv_enc)(int flen,const unsigned char *from,
- unsigned char *to,
- RSA *rsa,int padding);
- int (*rsa_priv_dec)(int flen,const unsigned char *from,
- unsigned char *to,
- RSA *rsa,int padding);
- int (*rsa_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); /* Can be null */
- int (*init)(RSA *rsa); /* called at new */
- int (*finish)(RSA *rsa); /* called at free */
- int flags; /* RSA_METHOD_FLAG_* things */
- char *app_data; /* may be needed! */
- /* New sign and verify functions: some libraries don't allow arbitrary data
- * to be signed/verified: this allows them to be used. Note: for this to work
- * the RSA_public_decrypt() and RSA_private_encrypt() should *NOT* be used
- * RSA_sign(), RSA_verify() should be used instead. Note: for backwards
- * compatibility this functionality is only enabled if the RSA_FLAG_SIGN_VER
- * option is set in 'flags'.
- */
- int (*rsa_sign)(int type,
- const unsigned char *m, unsigned int m_length,
- unsigned char *sigret, unsigned int *siglen, const RSA *rsa);
- int (*rsa_verify)(int dtype,
- const unsigned char *m, unsigned int m_length,
- unsigned char *sigbuf, unsigned int siglen, const RSA *rsa);
- /* If this callback is NULL, the builtin software RSA key-gen will be used. This
- * is for behavioural compatibility whilst the code gets rewired, but one day
- * it would be nice to assume there are no such things as "builtin software"
- * implementations. */
- int (*rsa_keygen)(RSA *rsa, int bits, BIGNUM *e, BN_GENCB *cb);
- };
- struct rsa_st
- {
- /* The first parameter is used to pickup errors where
- * this is passed instead of aEVP_PKEY, it is set to 0 */
- int pad;
- long version;
- const RSA_METHOD *meth;
- /* functional reference if 'meth' is ENGINE-provided */
- ENGINE *engine;
- 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;
- /* all BIGNUM values are actually in the following data, if it is not
- * NULL */
- char *bignum_data;
- BN_BLINDING *blinding;
- BN_BLINDING *mt_blinding;
- };
- #define RSA_3 0x3L
- #define RSA_F4 0x10001L
- #define RSA_METHOD_FLAG_NO_CHECK 0x0001 /* don't check pub/private match */
- #define RSA_FLAG_CACHE_PUBLIC 0x0002
- #define RSA_FLAG_CACHE_PRIVATE 0x0004
- #define RSA_FLAG_BLINDING 0x0008
- #define RSA_FLAG_THREAD_SAFE 0x0010
- /* This flag means the private key operations will be handled by rsa_mod_exp
- * and that they do not depend on the private key components being present:
- * for example a key stored in external hardware. Without this flag bn_mod_exp
- * gets called when private key components are absent.
- */
- #define RSA_FLAG_EXT_PKEY 0x0020
- /* This flag in the RSA_METHOD enables the new rsa_sign, rsa_verify functions.
- */
- #define RSA_FLAG_SIGN_VER 0x0040
- #define RSA_FLAG_NO_BLINDING 0x0080 /* new with 0.9.6j and 0.9.7b; the built-in
- * RSA implementation now uses blinding by
- * default (ignoring RSA_FLAG_BLINDING),
- * but other engines might not need it
- */
- #define RSA_FLAG_NO_EXP_CONSTTIME 0x0100 /* new with 0.9.7h; the built-in RSA
- * implementation now uses constant time
- * modular exponentiation for secret exponents
- * by default. This flag causes the
- * faster variable sliding window method to
- * be used for all exponents.
- */
- #define RSA_PKCS1_PADDING 1
- #define RSA_SSLV23_PADDING 2
- #define RSA_NO_PADDING 3
- #define RSA_PKCS1_OAEP_PADDING 4
- #define RSA_X931_PADDING 5
- #define RSA_PKCS1_PADDING_SIZE 11
- #define RSA_set_app_data(s,arg) RSA_set_ex_data(s,0,arg)
- #define RSA_get_app_data(s) RSA_get_ex_data(s,0)
- RSA * RSA_new(void);
- RSA * RSA_new_method(ENGINE *engine);
- int RSA_size(const RSA *);
- /* Deprecated version */
- #ifndef OPENSSL_NO_DEPRECATED
- RSA * RSA_generate_key(int bits, unsigned long e,void
- (*callback)(int,int,void *),void *cb_arg);
- #endif /* !defined(OPENSSL_NO_DEPRECATED) */
- /* New version */
- int RSA_generate_key_ex(RSA *rsa, int bits, BIGNUM *e, BN_GENCB *cb);
- int RSA_check_key(const RSA *);
- /* next 4 return -1 on error */
- int RSA_public_encrypt(int flen, const unsigned char *from,
- unsigned char *to, RSA *rsa,int padding);
- int RSA_private_encrypt(int flen, const unsigned char *from,
- unsigned char *to, RSA *rsa,int padding);
- int RSA_public_decrypt(int flen, const unsigned char *from,
- unsigned char *to, RSA *rsa,int padding);
- int RSA_private_decrypt(int flen, const unsigned char *from,
- unsigned char *to, RSA *rsa,int padding);
- void RSA_free (RSA *r);
- /* "up" the RSA object's reference count */
- int RSA_up_ref(RSA *r);
- int RSA_flags(const RSA *r);
- void RSA_set_default_method(const RSA_METHOD *meth);
- const RSA_METHOD *RSA_get_default_method(void);
- const RSA_METHOD *RSA_get_method(const RSA *rsa);
- int RSA_set_method(RSA *rsa, const RSA_METHOD *meth);
- /* This function needs the memory locking malloc callbacks to be installed */
- int RSA_memory_lock(RSA *r);
- /* these are the actual SSLeay RSA functions */
- const RSA_METHOD *RSA_PKCS1_SSLeay(void);
- const RSA_METHOD *RSA_null_method(void);
- DECLARE_ASN1_ENCODE_FUNCTIONS_const(RSA, RSAPublicKey)
- DECLARE_ASN1_ENCODE_FUNCTIONS_const(RSA, RSAPrivateKey)
- #ifndef OPENSSL_NO_FP_API
- int RSA_print_fp(FILE *fp, const RSA *r,int offset);
- #endif
- #ifndef OPENSSL_NO_BIO
- int RSA_print(BIO *bp, const RSA *r,int offset);
- #endif
- int i2d_RSA_NET(const RSA *a, unsigned char **pp,
- int (*cb)(char *buf, int len, const char *prompt, int verify),
- int sgckey);
- RSA *d2i_RSA_NET(RSA **a, const unsigned char **pp, long length,
- int (*cb)(char *buf, int len, const char *prompt, int verify),
- int sgckey);
- int i2d_Netscape_RSA(const RSA *a, unsigned char **pp,
- int (*cb)(char *buf, int len, const char *prompt,
- int verify));
- RSA *d2i_Netscape_RSA(RSA **a, const unsigned char **pp, long length,
- int (*cb)(char *buf, int len, const char *prompt,
- int verify));
- /* The following 2 functions sign and verify a X509_SIG ASN1 object
- * inside PKCS#1 padded RSA encryption */
- int RSA_sign(int type, const unsigned char *m, unsigned int m_length,
- unsigned char *sigret, unsigned int *siglen, RSA *rsa);
- int RSA_verify(int type, const unsigned char *m, unsigned int m_length,
- unsigned char *sigbuf, unsigned int siglen, RSA *rsa);
- /* The following 2 function sign and verify a ASN1_OCTET_STRING
- * object inside PKCS#1 padded RSA encryption */
- int RSA_sign_ASN1_OCTET_STRING(int type,
- const unsigned char *m, unsigned int m_length,
- unsigned char *sigret, unsigned int *siglen, RSA *rsa);
- int RSA_verify_ASN1_OCTET_STRING(int type,
- const unsigned char *m, unsigned int m_length,
- unsigned char *sigbuf, unsigned int siglen, RSA *rsa);
- int RSA_blinding_on(RSA *rsa, BN_CTX *ctx);
- void RSA_blinding_off(RSA *rsa);
- BN_BLINDING *RSA_setup_blinding(RSA *rsa, BN_CTX *ctx);
- int RSA_padding_add_PKCS1_type_1(unsigned char *to,int tlen,
- const unsigned char *f,int fl);
- int RSA_padding_check_PKCS1_type_1(unsigned char *to,int tlen,
- const unsigned char *f,int fl,int rsa_len);
- int RSA_padding_add_PKCS1_type_2(unsigned char *to,int tlen,
- const unsigned char *f,int fl);
- int RSA_padding_check_PKCS1_type_2(unsigned char *to,int tlen,
- const unsigned char *f,int fl,int rsa_len);
- int PKCS1_MGF1(unsigned char *mask, long len,
- const unsigned char *seed, long seedlen, const EVP_MD *dgst);
- int RSA_padding_add_PKCS1_OAEP(unsigned char *to,int tlen,
- const unsigned char *f,int fl,
- const unsigned char *p,int pl);
- int RSA_padding_check_PKCS1_OAEP(unsigned char *to,int tlen,
- const unsigned char *f,int fl,int rsa_len,
- const unsigned char *p,int pl);
- int RSA_padding_add_SSLv23(unsigned char *to,int tlen,
- const unsigned char *f,int fl);
- int RSA_padding_check_SSLv23(unsigned char *to,int tlen,
- const unsigned char *f,int fl,int rsa_len);
- int RSA_padding_add_none(unsigned char *to,int tlen,
- const unsigned char *f,int fl);
- int RSA_padding_check_none(unsigned char *to,int tlen,
- const unsigned char *f,int fl,int rsa_len);
- int RSA_padding_add_X931(unsigned char *to,int tlen,
- const unsigned char *f,int fl);
- int RSA_padding_check_X931(unsigned char *to,int tlen,
- const unsigned char *f,int fl,int rsa_len);
- int RSA_X931_hash_id(int nid);
- int RSA_verify_PKCS1_PSS(RSA *rsa, const unsigned char *mHash,
- const EVP_MD *Hash, const unsigned char *EM, int sLen);
- int RSA_padding_add_PKCS1_PSS(RSA *rsa, unsigned char *EM,
- const unsigned char *mHash,
- const EVP_MD *Hash, int sLen);
- 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);
- int RSA_set_ex_data(RSA *r,int idx,void *arg);
- void *RSA_get_ex_data(const RSA *r, int idx);
- RSA *RSAPublicKey_dup(RSA *rsa);
- RSA *RSAPrivateKey_dup(RSA *rsa);
- /* BEGIN ERROR CODES */
- /* The following lines are auto generated by the script mkerr.pl. Any changes
- * made after this point may be overwritten when the script is next run.
- */
- void ERR_load_RSA_strings(void);
- /* Error codes for the RSA functions. */
- /* Function codes. */
- #define RSA_F_MEMORY_LOCK 100
- #define RSA_F_RSA_BUILTIN_KEYGEN 129
- #define RSA_F_RSA_CHECK_KEY 123
- #define RSA_F_RSA_EAY_PRIVATE_DECRYPT 101
- #define RSA_F_RSA_EAY_PRIVATE_ENCRYPT 102
- #define RSA_F_RSA_EAY_PUBLIC_DECRYPT 103
- #define RSA_F_RSA_EAY_PUBLIC_ENCRYPT 104
- #define RSA_F_RSA_GENERATE_KEY 105
- #define RSA_F_RSA_MEMORY_LOCK 130
- #define RSA_F_RSA_NEW_METHOD 106
- #define RSA_F_RSA_NULL 124
- #define RSA_F_RSA_NULL_MOD_EXP 131
- #define RSA_F_RSA_NULL_PRIVATE_DECRYPT 132
- #define RSA_F_RSA_NULL_PRIVATE_ENCRYPT 133
- #define RSA_F_RSA_NULL_PUBLIC_DECRYPT 134
- #define RSA_F_RSA_NULL_PUBLIC_ENCRYPT 135
- #define RSA_F_RSA_PADDING_ADD_NONE 107
- #define RSA_F_RSA_PADDING_ADD_PKCS1_OAEP 121
- #define RSA_F_RSA_PADDING_ADD_PKCS1_PSS 125
- #define RSA_F_RSA_PADDING_ADD_PKCS1_TYPE_1 108
- #define RSA_F_RSA_PADDING_ADD_PKCS1_TYPE_2 109
- #define RSA_F_RSA_PADDING_ADD_SSLV23 110
- #define RSA_F_RSA_PADDING_ADD_X931 127
- #define RSA_F_RSA_PADDING_CHECK_NONE 111
- #define RSA_F_RSA_PADDING_CHECK_PKCS1_OAEP 122
- #define RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_1 112
- #define RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_2 113
- #define RSA_F_RSA_PADDING_CHECK_SSLV23 114
- #define RSA_F_RSA_PADDING_CHECK_X931 128
- #define RSA_F_RSA_PRINT 115
- #define RSA_F_RSA_PRINT_FP 116
- #define RSA_F_RSA_SETUP_BLINDING 136
- #define RSA_F_RSA_SIGN 117
- #define RSA_F_RSA_SIGN_ASN1_OCTET_STRING 118
- #define RSA_F_RSA_VERIFY 119
- #define RSA_F_RSA_VERIFY_ASN1_OCTET_STRING 120
- #define RSA_F_RSA_VERIFY_PKCS1_PSS 126
- /* Reason codes. */
- #define RSA_R_ALGORITHM_MISMATCH 100
- #define RSA_R_BAD_E_VALUE 101
- #define RSA_R_BAD_FIXED_HEADER_DECRYPT 102
- #define RSA_R_BAD_PAD_BYTE_COUNT 103
- #define RSA_R_BAD_SIGNATURE 104
- #define RSA_R_BLOCK_TYPE_IS_NOT_01 106
- #define RSA_R_BLOCK_TYPE_IS_NOT_02 107
- #define RSA_R_DATA_GREATER_THAN_MOD_LEN 108
- #define RSA_R_DATA_TOO_LARGE 109
- #define RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE 110
- #define RSA_R_DATA_TOO_LARGE_FOR_MODULUS 132
- #define RSA_R_DATA_TOO_SMALL 111
- #define RSA_R_DATA_TOO_SMALL_FOR_KEY_SIZE 122
- #define RSA_R_DIGEST_TOO_BIG_FOR_RSA_KEY 112
- #define RSA_R_DMP1_NOT_CONGRUENT_TO_D 124
- #define RSA_R_DMQ1_NOT_CONGRUENT_TO_D 125
- #define RSA_R_D_E_NOT_CONGRUENT_TO_1 123
- #define RSA_R_FIRST_OCTET_INVALID 133
- #define RSA_R_INVALID_HEADER 137
- #define RSA_R_INVALID_MESSAGE_LENGTH 131
- #define RSA_R_INVALID_PADDING 138
- #define RSA_R_INVALID_TRAILER 139
- #define RSA_R_IQMP_NOT_INVERSE_OF_Q 126
- #define RSA_R_KEY_SIZE_TOO_SMALL 120
- #define RSA_R_LAST_OCTET_INVALID 134
- #define RSA_R_NO_PUBLIC_EXPONENT 140
- #define RSA_R_NULL_BEFORE_BLOCK_MISSING 113
- #define RSA_R_N_DOES_NOT_EQUAL_P_Q 127
- #define RSA_R_OAEP_DECODING_ERROR 121
- #define RSA_R_PADDING_CHECK_FAILED 114
- #define RSA_R_P_NOT_PRIME 128
- #define RSA_R_Q_NOT_PRIME 129
- #define RSA_R_RSA_OPERATIONS_NOT_SUPPORTED 130
- #define RSA_R_SLEN_CHECK_FAILED 136
- #define RSA_R_SLEN_RECOVERY_FAILED 135
- #define RSA_R_SSLV3_ROLLBACK_ATTACK 115
- #define RSA_R_THE_ASN1_OBJECT_IDENTIFIER_IS_NOT_KNOWN_FOR_THIS_MD 116
- #define RSA_R_UNKNOWN_ALGORITHM_TYPE 117
- #define RSA_R_UNKNOWN_PADDING_TYPE 118
- #define RSA_R_WRONG_SIGNATURE_LENGTH 119
- #ifdef __cplusplus
- }
- #endif
- #endif