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95 lines
3.4 KiB
C
Executable File
95 lines
3.4 KiB
C
Executable File
/* $OpenBSD: rsa_locl.h,v 1.12 2022/01/14 08:34:39 tb Exp $ */
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__BEGIN_HIDDEN_DECLS
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#define RSA_MIN_MODULUS_BITS 512
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/* Macros to test if a pkey or ctx is for a PSS key */
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#define pkey_is_pss(pkey) (pkey->ameth->pkey_id == EVP_PKEY_RSA_PSS)
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#define pkey_ctx_is_pss(ctx) (ctx->pmeth->pkey_id == EVP_PKEY_RSA_PSS)
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struct rsa_meth_st {
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const char *name;
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int (*rsa_pub_enc)(int flen, const unsigned char *from,
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unsigned char *to, RSA *rsa, int padding);
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int (*rsa_pub_dec)(int flen, const unsigned char *from,
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unsigned char *to, RSA *rsa, int padding);
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int (*rsa_priv_enc)(int flen, const unsigned char *from,
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unsigned char *to, RSA *rsa, int padding);
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int (*rsa_priv_dec)(int flen, const unsigned char *from,
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unsigned char *to, RSA *rsa, int padding);
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int (*rsa_mod_exp)(BIGNUM *r0, const BIGNUM *I, RSA *rsa,
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BN_CTX *ctx); /* Can be null */
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int (*bn_mod_exp)(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
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const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx); /* Can be null */
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int (*init)(RSA *rsa); /* called at new */
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int (*finish)(RSA *rsa); /* called at free */
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int flags; /* RSA_METHOD_FLAG_* things */
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char *app_data; /* may be needed! */
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/* New sign and verify functions: some libraries don't allow arbitrary data
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* to be signed/verified: this allows them to be used. Note: for this to work
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* the RSA_public_decrypt() and RSA_private_encrypt() should *NOT* be used
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* RSA_sign(), RSA_verify() should be used instead. Note: for backwards
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* compatibility this functionality is only enabled if the RSA_FLAG_SIGN_VER
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* option is set in 'flags'.
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*/
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int (*rsa_sign)(int type, const unsigned char *m, unsigned int m_length,
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unsigned char *sigret, unsigned int *siglen, const RSA *rsa);
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int (*rsa_verify)(int dtype, const unsigned char *m,
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unsigned int m_length, const unsigned char *sigbuf,
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unsigned int siglen, const RSA *rsa);
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/* If this callback is NULL, the builtin software RSA key-gen will be used. This
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* is for behavioural compatibility whilst the code gets rewired, but one day
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* it would be nice to assume there are no such things as "builtin software"
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* implementations. */
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int (*rsa_keygen)(RSA *rsa, int bits, BIGNUM *e, BN_GENCB *cb);
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};
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struct rsa_st {
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/* The first parameter is used to pickup errors where
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* this is passed instead of aEVP_PKEY, it is set to 0 */
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int pad;
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long version;
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const RSA_METHOD *meth;
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/* functional reference if 'meth' is ENGINE-provided */
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ENGINE *engine;
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BIGNUM *n;
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BIGNUM *e;
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BIGNUM *d;
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BIGNUM *p;
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BIGNUM *q;
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BIGNUM *dmp1;
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BIGNUM *dmq1;
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BIGNUM *iqmp;
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/* Parameter restrictions for PSS only keys. */
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RSA_PSS_PARAMS *pss;
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/* be careful using this if the RSA structure is shared */
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CRYPTO_EX_DATA ex_data;
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int references;
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int flags;
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/* Used to cache montgomery values */
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BN_MONT_CTX *_method_mod_n;
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BN_MONT_CTX *_method_mod_p;
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BN_MONT_CTX *_method_mod_q;
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/* all BIGNUM values are actually in the following data, if it is not
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* NULL */
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BN_BLINDING *blinding;
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BN_BLINDING *mt_blinding;
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};
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RSA_PSS_PARAMS *rsa_pss_params_create(const EVP_MD *sigmd, const EVP_MD *mgf1md,
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int saltlen);
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int rsa_pss_get_param(const RSA_PSS_PARAMS *pss, const EVP_MD **pmd,
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const EVP_MD **pmgf1md, int *psaltlen);
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extern int int_rsa_verify(int dtype, const unsigned char *m,
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unsigned int m_len, unsigned char *rm, size_t *prm_len,
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const unsigned char *sigbuf, size_t siglen, RSA *rsa);
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__END_HIDDEN_DECLS
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