[thirdparty/openssl.git] / crypto / include / internal / evp_int.h

/*
 * Copyright 2015-2017 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the OpenSSL license (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

#include "internal/refcount.h"

struct evp_pkey_ctx_st {
    /* Method associated with this operation */
    const EVP_PKEY_METHOD *pmeth;
    /* Engine that implements this method or NULL if builtin */
    ENGINE *engine;
    /* Key: may be NULL */
    EVP_PKEY *pkey;
    /* Peer key for key agreement, may be NULL */
    EVP_PKEY *peerkey;
    /* Actual operation */
    int operation;
    /* Algorithm specific data */
    void *data;
    /* Application specific data */
    void *app_data;
    /* Keygen callback */
    EVP_PKEY_gen_cb *pkey_gencb;
    /* implementation specific keygen data */
    int *keygen_info;
    int keygen_info_count;
} /* EVP_PKEY_CTX */ ;

#define EVP_PKEY_FLAG_DYNAMIC   1

struct evp_pkey_method_st {
    int pkey_id;
    int flags;
    int (*init) (EVP_PKEY_CTX *ctx);
    int (*copy) (EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src);
    void (*cleanup) (EVP_PKEY_CTX *ctx);
    int (*paramgen_init) (EVP_PKEY_CTX *ctx);
    int (*paramgen) (EVP_PKEY_CTX *ctx, EVP_PKEY *pkey);
    int (*keygen_init) (EVP_PKEY_CTX *ctx);
    int (*keygen) (EVP_PKEY_CTX *ctx, EVP_PKEY *pkey);
    int (*sign_init) (EVP_PKEY_CTX *ctx);
    int (*sign) (EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
                 const unsigned char *tbs, size_t tbslen);
    int (*verify_init) (EVP_PKEY_CTX *ctx);
    int (*verify) (EVP_PKEY_CTX *ctx,
                   const unsigned char *sig, size_t siglen,
                   const unsigned char *tbs, size_t tbslen);
    int (*verify_recover_init) (EVP_PKEY_CTX *ctx);
    int (*verify_recover) (EVP_PKEY_CTX *ctx,
                           unsigned char *rout, size_t *routlen,
                           const unsigned char *sig, size_t siglen);
    int (*signctx_init) (EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx);
    int (*signctx) (EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
                    EVP_MD_CTX *mctx);
    int (*verifyctx_init) (EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx);
    int (*verifyctx) (EVP_PKEY_CTX *ctx, const unsigned char *sig, int siglen,
                      EVP_MD_CTX *mctx);
    int (*encrypt_init) (EVP_PKEY_CTX *ctx);
    int (*encrypt) (EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
                    const unsigned char *in, size_t inlen);
    int (*decrypt_init) (EVP_PKEY_CTX *ctx);
    int (*decrypt) (EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
                    const unsigned char *in, size_t inlen);
    int (*derive_init) (EVP_PKEY_CTX *ctx);
    int (*derive) (EVP_PKEY_CTX *ctx, unsigned char *key, size_t *keylen);
    int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1, void *p2);
    int (*ctrl_str) (EVP_PKEY_CTX *ctx, const char *type, const char *value);
    int (*digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen,
                       const unsigned char *tbs, size_t tbslen);
    int (*digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig,
                         size_t siglen, const unsigned char *tbs,
                         size_t tbslen);
    int (*check) (EVP_PKEY *pkey);
} /* EVP_PKEY_METHOD */ ;

DEFINE_STACK_OF_CONST(EVP_PKEY_METHOD)

void evp_pkey_set_cb_translate(BN_GENCB *cb, EVP_PKEY_CTX *ctx);

extern const EVP_PKEY_METHOD cmac_pkey_meth;
extern const EVP_PKEY_METHOD dh_pkey_meth;
extern const EVP_PKEY_METHOD dhx_pkey_meth;
extern const EVP_PKEY_METHOD dsa_pkey_meth;
extern const EVP_PKEY_METHOD ec_pkey_meth;
extern const EVP_PKEY_METHOD ecx25519_pkey_meth;
extern const EVP_PKEY_METHOD ed25519_pkey_meth;
extern const EVP_PKEY_METHOD hmac_pkey_meth;
extern const EVP_PKEY_METHOD rsa_pkey_meth;
extern const EVP_PKEY_METHOD rsa_pss_pkey_meth;
extern const EVP_PKEY_METHOD scrypt_pkey_meth;
extern const EVP_PKEY_METHOD tls1_prf_pkey_meth;
extern const EVP_PKEY_METHOD hkdf_pkey_meth;
extern const EVP_PKEY_METHOD poly1305_pkey_meth;
extern const EVP_PKEY_METHOD siphash_pkey_meth;

struct evp_md_st {
    int type;
    int pkey_type;
    int md_size;
    unsigned long flags;
    int (*init) (EVP_MD_CTX *ctx);
    int (*update) (EVP_MD_CTX *ctx, const void *data, size_t count);
    int (*final) (EVP_MD_CTX *ctx, unsigned char *md);
    int (*copy) (EVP_MD_CTX *to, const EVP_MD_CTX *from);
    int (*cleanup) (EVP_MD_CTX *ctx);
    int block_size;
    int ctx_size;               /* how big does the ctx->md_data need to be */
    /* control function */
    int (*md_ctrl) (EVP_MD_CTX *ctx, int cmd, int p1, void *p2);
} /* EVP_MD */ ;

struct evp_cipher_st {
    int nid;
    int block_size;
    /* Default value for variable length ciphers */
    int key_len;
    int iv_len;
    /* Various flags */
    unsigned long flags;
    /* init key */
    int (*init) (EVP_CIPHER_CTX *ctx, const unsigned char *key,
                 const unsigned char *iv, int enc);
    /* encrypt/decrypt data */
    int (*do_cipher) (EVP_CIPHER_CTX *ctx, unsigned char *out,
                      const unsigned char *in, size_t inl);
    /* cleanup ctx */
    int (*cleanup) (EVP_CIPHER_CTX *);
    /* how big ctx->cipher_data needs to be */
    int ctx_size;
    /* Populate a ASN1_TYPE with parameters */
    int (*set_asn1_parameters) (EVP_CIPHER_CTX *, ASN1_TYPE *);
    /* Get parameters from a ASN1_TYPE */
    int (*get_asn1_parameters) (EVP_CIPHER_CTX *, ASN1_TYPE *);
    /* Miscellaneous operations */
    int (*ctrl) (EVP_CIPHER_CTX *, int type, int arg, void *ptr);
    /* Application data */
    void *app_data;
} /* EVP_CIPHER */ ;

/* Macros to code block cipher wrappers */

/* Wrapper functions for each cipher mode */

#define EVP_C_DATA(kstruct, ctx) \
        ((kstruct *)EVP_CIPHER_CTX_get_cipher_data(ctx))

#define BLOCK_CIPHER_ecb_loop() \
        size_t i, bl; \
        bl = EVP_CIPHER_CTX_cipher(ctx)->block_size;    \
        if (inl < bl) return 1;\
        inl -= bl; \
        for (i=0; i <= inl; i+=bl)

#define BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \
static int cname##_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
{\
        BLOCK_CIPHER_ecb_loop() \
            cprefix##_ecb_encrypt(in + i, out + i, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_encrypting(ctx)); \
        return 1;\
}

#define EVP_MAXCHUNK ((size_t)1<<(sizeof(long)*8-2))

#define BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched) \
    static int cname##_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
{\
        while(inl>=EVP_MAXCHUNK) {\
            int num = EVP_CIPHER_CTX_num(ctx);\
            cprefix##_ofb##cbits##_encrypt(in, out, (long)EVP_MAXCHUNK, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), &num); \
            EVP_CIPHER_CTX_set_num(ctx, num);\
            inl-=EVP_MAXCHUNK;\
            in +=EVP_MAXCHUNK;\
            out+=EVP_MAXCHUNK;\
        }\
        if (inl) {\
            int num = EVP_CIPHER_CTX_num(ctx);\
            cprefix##_ofb##cbits##_encrypt(in, out, (long)inl, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), &num); \
            EVP_CIPHER_CTX_set_num(ctx, num);\
        }\
        return 1;\
}

#define BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \
static int cname##_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
{\
        while(inl>=EVP_MAXCHUNK) \
            {\
            cprefix##_cbc_encrypt(in, out, (long)EVP_MAXCHUNK, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), EVP_CIPHER_CTX_encrypting(ctx));\
            inl-=EVP_MAXCHUNK;\
            in +=EVP_MAXCHUNK;\
            out+=EVP_MAXCHUNK;\
            }\
        if (inl)\
            cprefix##_cbc_encrypt(in, out, (long)inl, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), EVP_CIPHER_CTX_encrypting(ctx));\
        return 1;\
}

#define BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched)  \
static int cname##_cfb##cbits##_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
{\
    size_t chunk = EVP_MAXCHUNK;\
    if (cbits == 1)  chunk >>= 3;\
    if (inl < chunk) chunk = inl;\
    while (inl && inl >= chunk)\
    {\
        int num = EVP_CIPHER_CTX_num(ctx);\
        cprefix##_cfb##cbits##_encrypt(in, out, (long) \
            ((cbits == 1) \
                && !EVP_CIPHER_CTX_test_flags(ctx, EVP_CIPH_FLAG_LENGTH_BITS) \
                ? inl*8 : inl), \
            &EVP_C_DATA(kstruct, ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx),\
            &num, EVP_CIPHER_CTX_encrypting(ctx));\
        EVP_CIPHER_CTX_set_num(ctx, num);\
        inl -= chunk;\
        in += chunk;\
        out += chunk;\
        if (inl < chunk) chunk = inl;\
    }\
    return 1;\
}

#define BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \
        BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \
        BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \
        BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \
        BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched)

#define BLOCK_CIPHER_def1(cname, nmode, mode, MODE, kstruct, nid, block_size, \
                          key_len, iv_len, flags, init_key, cleanup, \
                          set_asn1, get_asn1, ctrl) \
static const EVP_CIPHER cname##_##mode = { \
        nid##_##nmode, block_size, key_len, iv_len, \
        flags | EVP_CIPH_##MODE##_MODE, \
        init_key, \
        cname##_##mode##_cipher, \
        cleanup, \
        sizeof(kstruct), \
        set_asn1, get_asn1,\
        ctrl, \
        NULL \
}; \
const EVP_CIPHER *EVP_##cname##_##mode(void) { return &cname##_##mode; }

#define BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, \
                             iv_len, flags, init_key, cleanup, set_asn1, \
                             get_asn1, ctrl) \
BLOCK_CIPHER_def1(cname, cbc, cbc, CBC, kstruct, nid, block_size, key_len, \
                  iv_len, flags, init_key, cleanup, set_asn1, get_asn1, ctrl)

#define BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, \
                             iv_len, cbits, flags, init_key, cleanup, \
                             set_asn1, get_asn1, ctrl) \
BLOCK_CIPHER_def1(cname, cfb##cbits, cfb##cbits, CFB, kstruct, nid, 1, \
                  key_len, iv_len, flags, init_key, cleanup, set_asn1, \
                  get_asn1, ctrl)

#define BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, \
                             iv_len, cbits, flags, init_key, cleanup, \
                             set_asn1, get_asn1, ctrl) \
BLOCK_CIPHER_def1(cname, ofb##cbits, ofb, OFB, kstruct, nid, 1, \
                  key_len, iv_len, flags, init_key, cleanup, set_asn1, \
                  get_asn1, ctrl)

#define BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, \
                             flags, init_key, cleanup, set_asn1, \
                             get_asn1, ctrl) \
BLOCK_CIPHER_def1(cname, ecb, ecb, ECB, kstruct, nid, block_size, key_len, \
                  0, flags, init_key, cleanup, set_asn1, get_asn1, ctrl)

#define BLOCK_CIPHER_defs(cname, kstruct, \
                          nid, block_size, key_len, iv_len, cbits, flags, \
                          init_key, cleanup, set_asn1, get_asn1, ctrl) \
BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, iv_len, flags, \
                     init_key, cleanup, set_asn1, get_asn1, ctrl) \
BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, iv_len, cbits, \
                     flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \
BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, iv_len, cbits, \
                     flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \
BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, flags, \
                     init_key, cleanup, set_asn1, get_asn1, ctrl)

/*-
#define BLOCK_CIPHER_defs(cname, kstruct, \
                                nid, block_size, key_len, iv_len, flags,\
                                 init_key, cleanup, set_asn1, get_asn1, ctrl)\
static const EVP_CIPHER cname##_cbc = {\
        nid##_cbc, block_size, key_len, iv_len, \
        flags | EVP_CIPH_CBC_MODE,\
        init_key,\
        cname##_cbc_cipher,\
        cleanup,\
        sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
                sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
        set_asn1, get_asn1,\
        ctrl, \
        NULL \
};\
const EVP_CIPHER *EVP_##cname##_cbc(void) { return &cname##_cbc; }\
static const EVP_CIPHER cname##_cfb = {\
        nid##_cfb64, 1, key_len, iv_len, \
        flags | EVP_CIPH_CFB_MODE,\
        init_key,\
        cname##_cfb_cipher,\
        cleanup,\
        sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
                sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
        set_asn1, get_asn1,\
        ctrl,\
        NULL \
};\
const EVP_CIPHER *EVP_##cname##_cfb(void) { return &cname##_cfb; }\
static const EVP_CIPHER cname##_ofb = {\
        nid##_ofb64, 1, key_len, iv_len, \
        flags | EVP_CIPH_OFB_MODE,\
        init_key,\
        cname##_ofb_cipher,\
        cleanup,\
        sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
                sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
        set_asn1, get_asn1,\
        ctrl,\
        NULL \
};\
const EVP_CIPHER *EVP_##cname##_ofb(void) { return &cname##_ofb; }\
static const EVP_CIPHER cname##_ecb = {\
        nid##_ecb, block_size, key_len, iv_len, \
        flags | EVP_CIPH_ECB_MODE,\
        init_key,\
        cname##_ecb_cipher,\
        cleanup,\
        sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
                sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
        set_asn1, get_asn1,\
        ctrl,\
        NULL \
};\
const EVP_CIPHER *EVP_##cname##_ecb(void) { return &cname##_ecb; }
*/

#define IMPLEMENT_BLOCK_CIPHER(cname, ksched, cprefix, kstruct, nid, \
                               block_size, key_len, iv_len, cbits, \
                               flags, init_key, \
                               cleanup, set_asn1, get_asn1, ctrl) \
        BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \
        BLOCK_CIPHER_defs(cname, kstruct, nid, block_size, key_len, iv_len, \
                          cbits, flags, init_key, cleanup, set_asn1, \
                          get_asn1, ctrl)

#define IMPLEMENT_CFBR(cipher,cprefix,kstruct,ksched,keysize,cbits,iv_len,fl) \
        BLOCK_CIPHER_func_cfb(cipher##_##keysize,cprefix,cbits,kstruct,ksched) \
        BLOCK_CIPHER_def_cfb(cipher##_##keysize,kstruct, \
                             NID_##cipher##_##keysize, keysize/8, iv_len, cbits, \
                             (fl)|EVP_CIPH_FLAG_DEFAULT_ASN1, \
                             cipher##_init_key, NULL, NULL, NULL, NULL)


/*
 * Type needs to be a bit field Sub-type needs to be for variations on the
 * method, as in, can it do arbitrary encryption....
 */
struct evp_pkey_st {
    int type;
    int save_type;
    CRYPTO_REF_COUNT references;
    const EVP_PKEY_ASN1_METHOD *ameth;
    ENGINE *engine;
    ENGINE *pmeth_engine; /* If not NULL public key ENGINE to use */
    union {
        void *ptr;
# ifndef OPENSSL_NO_RSA
        struct rsa_st *rsa;     /* RSA */
# endif
# ifndef OPENSSL_NO_DSA
        struct dsa_st *dsa;     /* DSA */
# endif
# ifndef OPENSSL_NO_DH
        struct dh_st *dh;       /* DH */
# endif
# ifndef OPENSSL_NO_EC
        struct ec_key_st *ec;   /* ECC */
# endif
    } pkey;
    int save_parameters;
    STACK_OF(X509_ATTRIBUTE) *attributes; /* [ 0 ] */
    CRYPTO_RWLOCK *lock;
} /* EVP_PKEY */ ;


void openssl_add_all_ciphers_int(void);
void openssl_add_all_digests_int(void);
void evp_cleanup_int(void);
void evp_app_cleanup_int(void);

/* Pulling defines out of C soure files */

#define EVP_RC4_KEY_SIZE 16
#ifndef TLS1_1_VERSION
# define TLS1_1_VERSION   0x0302
#endif
Commit	Line	Data
27af42f9	1	/*
3f5616d7	2	* Copyright 2015-2017 The OpenSSL Project Authors. All Rights Reserved.
27af42f9	3	*
aa6bb135 RS	4	* Licensed under the OpenSSL license (the "License"). You may not use
	5	* this file except in compliance with the License. You can obtain a copy
	6	* in the file LICENSE in the source distribution or at
	7	* https://www.openssl.org/source/license.html
27af42f9 DSH	8	*/
27af42f9 DSH	9
2f545ae4 KR	10	#include "internal/refcount.h"
2f545ae4 KR	11
27af42f9 DSH	12	struct evp_pkey_ctx_st {
	13	/* Method associated with this operation */
	14	const EVP_PKEY_METHOD *pmeth;
	15	/* Engine that implements this method or NULL if builtin */
	16	ENGINE *engine;
	17	/* Key: may be NULL */
	18	EVP_PKEY *pkey;
	19	/* Peer key for key agreement, may be NULL */
	20	EVP_PKEY *peerkey;
	21	/* Actual operation */
	22	int operation;
	23	/* Algorithm specific data */
	24	void *data;
	25	/* Application specific data */
	26	void *app_data;
	27	/* Keygen callback */
	28	EVP_PKEY_gen_cb *pkey_gencb;
	29	/* implementation specific keygen data */
	30	int *keygen_info;
	31	int keygen_info_count;
	32	} /* EVP_PKEY_CTX */ ;
	33
	34	#define EVP_PKEY_FLAG_DYNAMIC 1
	35
	36	struct evp_pkey_method_st {
	37	int pkey_id;
	38	int flags;
	39	int (init) (EVP_PKEY_CTX ctx);
	40	int (copy) (EVP_PKEY_CTX dst, EVP_PKEY_CTX *src);
	41	void (cleanup) (EVP_PKEY_CTX ctx);
	42	int (paramgen_init) (EVP_PKEY_CTX ctx);
	43	int (paramgen) (EVP_PKEY_CTX ctx, EVP_PKEY *pkey);
	44	int (keygen_init) (EVP_PKEY_CTX ctx);
	45	int (keygen) (EVP_PKEY_CTX ctx, EVP_PKEY *pkey);
	46	int (sign_init) (EVP_PKEY_CTX ctx);
	47	int (sign) (EVP_PKEY_CTX ctx, unsigned char sig, size_t siglen,
	48	const unsigned char *tbs, size_t tbslen);
	49	int (verify_init) (EVP_PKEY_CTX ctx);
	50	int (verify) (EVP_PKEY_CTX ctx,
	51	const unsigned char *sig, size_t siglen,
	52	const unsigned char *tbs, size_t tbslen);
	53	int (verify_recover_init) (EVP_PKEY_CTX ctx);
	54	int (verify_recover) (EVP_PKEY_CTX ctx,
	55	unsigned char rout, size_t routlen,
	56	const unsigned char *sig, size_t siglen);
	57	int (signctx_init) (EVP_PKEY_CTX ctx, EVP_MD_CTX *mctx);
	58	int (signctx) (EVP_PKEY_CTX ctx, unsigned char sig, size_t siglen,
	59	EVP_MD_CTX *mctx);
	60	int (verifyctx_init) (EVP_PKEY_CTX ctx, EVP_MD_CTX *mctx);
	61	int (verifyctx) (EVP_PKEY_CTX ctx, const unsigned char *sig, int siglen,
	62	EVP_MD_CTX *mctx);
	63	int (encrypt_init) (EVP_PKEY_CTX ctx);
	64	int (encrypt) (EVP_PKEY_CTX ctx, unsigned char out, size_t outlen,
	65	const unsigned char *in, size_t inlen);
	66	int (decrypt_init) (EVP_PKEY_CTX ctx);
	67	int (decrypt) (EVP_PKEY_CTX ctx, unsigned char out, size_t outlen,
	68	const unsigned char *in, size_t inlen);
	69	int (derive_init) (EVP_PKEY_CTX ctx);
	70	int (derive) (EVP_PKEY_CTX ctx, unsigned char key, size_t keylen);
	71	int (ctrl) (EVP_PKEY_CTX ctx, int type, int p1, void *p2);
	72	int (ctrl_str) (EVP_PKEY_CTX ctx, const char type, const char value);
f723c98e DSH	73	int (digestsign) (EVP_MD_CTX ctx, unsigned char sig, size_t siglen,
	74	const unsigned char *tbs, size_t tbslen);
	75	int (digestverify) (EVP_MD_CTX ctx, const unsigned char *sig,
	76	size_t siglen, const unsigned char *tbs,
	77	size_t tbslen);
2aee35d3	78	int (check) (EVP_PKEY pkey);
27af42f9 DSH	79	} /* EVP_PKEY_METHOD */ ;
27af42f9 DSH	80
a8eba56e	81	DEFINE_STACK_OF_CONST(EVP_PKEY_METHOD)
4a1f3f27	82
27af42f9	83	void evp_pkey_set_cb_translate(BN_GENCB cb, EVP_PKEY_CTX ctx);
8f463dbd DSH	84
	85	extern const EVP_PKEY_METHOD cmac_pkey_meth;
	86	extern const EVP_PKEY_METHOD dh_pkey_meth;
	87	extern const EVP_PKEY_METHOD dhx_pkey_meth;
	88	extern const EVP_PKEY_METHOD dsa_pkey_meth;
	89	extern const EVP_PKEY_METHOD ec_pkey_meth;
262bd85f	90	extern const EVP_PKEY_METHOD ecx25519_pkey_meth;
42a3008a	91	extern const EVP_PKEY_METHOD ed25519_pkey_meth;
8f463dbd DSH	92	extern const EVP_PKEY_METHOD hmac_pkey_meth;
8f463dbd DSH	93	extern const EVP_PKEY_METHOD rsa_pkey_meth;
6577e008	94	extern const EVP_PKEY_METHOD rsa_pss_pkey_meth;
cefa762e	95	extern const EVP_PKEY_METHOD scrypt_pkey_meth;
1eff3485	96	extern const EVP_PKEY_METHOD tls1_prf_pkey_meth;
aacfb134	97	extern const EVP_PKEY_METHOD hkdf_pkey_meth;
52ad5b60	98	extern const EVP_PKEY_METHOD poly1305_pkey_meth;
3f5616d7	99	extern const EVP_PKEY_METHOD siphash_pkey_meth;
2db6bf6f RL	100
	101	struct evp_md_st {
	102	int type;
	103	int pkey_type;
	104	int md_size;
	105	unsigned long flags;
	106	int (init) (EVP_MD_CTX ctx);
	107	int (update) (EVP_MD_CTX ctx, const void *data, size_t count);
	108	int (final) (EVP_MD_CTX ctx, unsigned char *md);
	109	int (copy) (EVP_MD_CTX to, const EVP_MD_CTX *from);
	110	int (cleanup) (EVP_MD_CTX ctx);
	111	int block_size;
	112	int ctx_size; /* how big does the ctx->md_data need to be */
	113	/* control function */
	114	int (md_ctrl) (EVP_MD_CTX ctx, int cmd, int p1, void *p2);
	115	} /* EVP_MD */ ;
	116
e79f8773 RL	117	struct evp_cipher_st {
	118	int nid;
	119	int block_size;
	120	/* Default value for variable length ciphers */
	121	int key_len;
	122	int iv_len;
	123	/* Various flags */
	124	unsigned long flags;
	125	/* init key */
	126	int (init) (EVP_CIPHER_CTX ctx, const unsigned char *key,
	127	const unsigned char *iv, int enc);
	128	/* encrypt/decrypt data */
	129	int (do_cipher) (EVP_CIPHER_CTX ctx, unsigned char *out,
	130	const unsigned char *in, size_t inl);
	131	/* cleanup ctx */
	132	int (cleanup) (EVP_CIPHER_CTX );
	133	/* how big ctx->cipher_data needs to be */
	134	int ctx_size;
	135	/* Populate a ASN1_TYPE with parameters */
	136	int (set_asn1_parameters) (EVP_CIPHER_CTX , ASN1_TYPE *);
	137	/* Get parameters from a ASN1_TYPE */
	138	int (get_asn1_parameters) (EVP_CIPHER_CTX , ASN1_TYPE *);
	139	/* Miscellaneous operations */
	140	int (ctrl) (EVP_CIPHER_CTX , int type, int arg, void *ptr);
	141	/* Application data */
	142	void *app_data;
	143	} /* EVP_CIPHER */ ;
	144
	145	/* Macros to code block cipher wrappers */
	146
	147	/* Wrapper functions for each cipher mode */
	148
44ab2dfd MC	149	#define EVP_C_DATA(kstruct, ctx) \
44ab2dfd MC	150	((kstruct *)EVP_CIPHER_CTX_get_cipher_data(ctx))
e79f8773 RL	151
	152	#define BLOCK_CIPHER_ecb_loop() \
	153	size_t i, bl; \
	154	bl = EVP_CIPHER_CTX_cipher(ctx)->block_size; \
e8aa8b6c	155	if (inl < bl) return 1;\
e79f8773	156	inl -= bl; \
e8aa8b6c	157	for (i=0; i <= inl; i+=bl)
e79f8773 RL	158
	159	#define BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \
	160	static int cname##_ecb_cipher(EVP_CIPHER_CTX ctx, unsigned char out, const unsigned char *in, size_t inl) \
	161	{\
	162	BLOCK_CIPHER_ecb_loop() \
	163	cprefix##_ecb_encrypt(in + i, out + i, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_encrypting(ctx)); \
	164	return 1;\
	165	}
	166
	167	#define EVP_MAXCHUNK ((size_t)1<<(sizeof(long)*8-2))
	168
	169	#define BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched) \
	170	static int cname##_ofb_cipher(EVP_CIPHER_CTX ctx, unsigned char out, const unsigned char *in, size_t inl) \
	171	{\
	172	while(inl>=EVP_MAXCHUNK) {\
	173	int num = EVP_CIPHER_CTX_num(ctx);\
	174	cprefix##_ofb##cbits##_encrypt(in, out, (long)EVP_MAXCHUNK, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), &num); \
	175	EVP_CIPHER_CTX_set_num(ctx, num);\
	176	inl-=EVP_MAXCHUNK;\
	177	in +=EVP_MAXCHUNK;\
	178	out+=EVP_MAXCHUNK;\
	179	}\
	180	if (inl) {\
	181	int num = EVP_CIPHER_CTX_num(ctx);\
	182	cprefix##_ofb##cbits##_encrypt(in, out, (long)inl, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), &num); \
	183	EVP_CIPHER_CTX_set_num(ctx, num);\
	184	}\
	185	return 1;\
	186	}
	187
	188	#define BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \
	189	static int cname##_cbc_cipher(EVP_CIPHER_CTX ctx, unsigned char out, const unsigned char *in, size_t inl) \
	190	{\
	191	while(inl>=EVP_MAXCHUNK) \
	192	{\
	193	cprefix##_cbc_encrypt(in, out, (long)EVP_MAXCHUNK, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), EVP_CIPHER_CTX_encrypting(ctx));\
	194	inl-=EVP_MAXCHUNK;\
	195	in +=EVP_MAXCHUNK;\
	196	out+=EVP_MAXCHUNK;\
	197	}\
	198	if (inl)\
	199	cprefix##_cbc_encrypt(in, out, (long)inl, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), EVP_CIPHER_CTX_encrypting(ctx));\
	200	return 1;\
	201	}
	202
	203	#define BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \
	204	static int cname##_cfb##cbits##_cipher(EVP_CIPHER_CTX ctx, unsigned char out, const unsigned char *in, size_t inl) \
	205	{\
e8aa8b6c F	206	size_t chunk = EVP_MAXCHUNK;\
	207	if (cbits == 1) chunk >>= 3;\
	208	if (inl < chunk) chunk = inl;\
	209	while (inl && inl >= chunk)\
	210	{\
	211	int num = EVP_CIPHER_CTX_num(ctx);\
	212	cprefix##_cfb##cbits##_encrypt(in, out, (long) \
	213	((cbits == 1) \
	214	&& !EVP_CIPHER_CTX_test_flags(ctx, EVP_CIPH_FLAG_LENGTH_BITS) \
	215	? inl*8 : inl), \
	216	&EVP_C_DATA(kstruct, ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx),\
	217	&num, EVP_CIPHER_CTX_encrypting(ctx));\
	218	EVP_CIPHER_CTX_set_num(ctx, num);\
	219	inl -= chunk;\
	220	in += chunk;\
	221	out += chunk;\
	222	if (inl < chunk) chunk = inl;\
	223	}\
	224	return 1;\
e79f8773 RL	225	}
	226
	227	#define BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \
	228	BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \
	229	BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \
	230	BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \
	231	BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched)
	232
	233	#define BLOCK_CIPHER_def1(cname, nmode, mode, MODE, kstruct, nid, block_size, \
	234	key_len, iv_len, flags, init_key, cleanup, \
	235	set_asn1, get_asn1, ctrl) \
	236	static const EVP_CIPHER cname##_##mode = { \
	237	nid##_##nmode, block_size, key_len, iv_len, \
	238	flags \| EVP_CIPH_##MODE##_MODE, \
	239	init_key, \
	240	cname##_##mode##_cipher, \
	241	cleanup, \
	242	sizeof(kstruct), \
	243	set_asn1, get_asn1,\
	244	ctrl, \
	245	NULL \
	246	}; \
	247	const EVP_CIPHER *EVP_##cname##_##mode(void) { return &cname##_##mode; }
	248
	249	#define BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, \
	250	iv_len, flags, init_key, cleanup, set_asn1, \
	251	get_asn1, ctrl) \
	252	BLOCK_CIPHER_def1(cname, cbc, cbc, CBC, kstruct, nid, block_size, key_len, \
	253	iv_len, flags, init_key, cleanup, set_asn1, get_asn1, ctrl)
	254
	255	#define BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, \
	256	iv_len, cbits, flags, init_key, cleanup, \
	257	set_asn1, get_asn1, ctrl) \
	258	BLOCK_CIPHER_def1(cname, cfb##cbits, cfb##cbits, CFB, kstruct, nid, 1, \
	259	key_len, iv_len, flags, init_key, cleanup, set_asn1, \
	260	get_asn1, ctrl)
	261
	262	#define BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, \
	263	iv_len, cbits, flags, init_key, cleanup, \
	264	set_asn1, get_asn1, ctrl) \
	265	BLOCK_CIPHER_def1(cname, ofb##cbits, ofb, OFB, kstruct, nid, 1, \
	266	key_len, iv_len, flags, init_key, cleanup, set_asn1, \
	267	get_asn1, ctrl)
	268
	269	#define BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, \
	270	flags, init_key, cleanup, set_asn1, \
	271	get_asn1, ctrl) \
	272	BLOCK_CIPHER_def1(cname, ecb, ecb, ECB, kstruct, nid, block_size, key_len, \
	273	0, flags, init_key, cleanup, set_asn1, get_asn1, ctrl)
	274
	275	#define BLOCK_CIPHER_defs(cname, kstruct, \
	276	nid, block_size, key_len, iv_len, cbits, flags, \
	277	init_key, cleanup, set_asn1, get_asn1, ctrl) \
	278	BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, iv_len, flags, \
	279	init_key, cleanup, set_asn1, get_asn1, ctrl) \
	280	BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, iv_len, cbits, \
	281	flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \
	282	BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, iv_len, cbits, \
	283	flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \
	284	BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, flags, \
	285	init_key, cleanup, set_asn1, get_asn1, ctrl)
	286
	287	/*-
	288	#define BLOCK_CIPHER_defs(cname, kstruct, \
289	nid, block_size, key_len, iv_len, flags,\
290	init_key, cleanup, set_asn1, get_asn1, ctrl)\
291	static const EVP_CIPHER cname##_cbc = {\
292	nid##_cbc, block_size, key_len, iv_len, \
293	flags \| EVP_CIPH_CBC_MODE,\
294	init_key,\
295	cname##_cbc_cipher,\
296	cleanup,\
297	sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
298	sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
299	set_asn1, get_asn1,\
300	ctrl, \
301	NULL \
302	};\
303	const EVP_CIPHER *EVP_##cname##_cbc(void) { return &cname##_cbc; }\
304	static const EVP_CIPHER cname##_cfb = {\
305	nid##_cfb64, 1, key_len, iv_len, \
306	flags \| EVP_CIPH_CFB_MODE,\
307	init_key,\
308	cname##_cfb_cipher,\
309	cleanup,\
310	sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
311	sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
312	set_asn1, get_asn1,\
313	ctrl,\
314	NULL \
315	};\
316	const EVP_CIPHER *EVP_##cname##_cfb(void) { return &cname##_cfb; }\
317	static const EVP_CIPHER cname##_ofb = {\
318	nid##_ofb64, 1, key_len, iv_len, \
319	flags \| EVP_CIPH_OFB_MODE,\
320	init_key,\
321	cname##_ofb_cipher,\
322	cleanup,\
323	sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
324	sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
325	set_asn1, get_asn1,\
326	ctrl,\
327	NULL \
328	};\
329	const EVP_CIPHER *EVP_##cname##_ofb(void) { return &cname##_ofb; }\
330	static const EVP_CIPHER cname##_ecb = {\
331	nid##_ecb, block_size, key_len, iv_len, \
332	flags \| EVP_CIPH_ECB_MODE,\
333	init_key,\
334	cname##_ecb_cipher,\
335	cleanup,\
336	sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
337	sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
338	set_asn1, get_asn1,\
339	ctrl,\
340	NULL \
341	};\
342	const EVP_CIPHER *EVP_##cname##_ecb(void) { return &cname##_ecb; }
343	*/
344
345	#define IMPLEMENT_BLOCK_CIPHER(cname, ksched, cprefix, kstruct, nid, \
346	block_size, key_len, iv_len, cbits, \
347	flags, init_key, \
348	cleanup, set_asn1, get_asn1, ctrl) \
349	BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \
350	BLOCK_CIPHER_defs(cname, kstruct, nid, block_size, key_len, iv_len, \
351	cbits, flags, init_key, cleanup, set_asn1, \
352	get_asn1, ctrl)
353
354	#define IMPLEMENT_CFBR(cipher,cprefix,kstruct,ksched,keysize,cbits,iv_len,fl) \
355	BLOCK_CIPHER_func_cfb(cipher##_##keysize,cprefix,cbits,kstruct,ksched) \
356	BLOCK_CIPHER_def_cfb(cipher##_##keysize,kstruct, \
357	NID_##cipher##_##keysize, keysize/8, iv_len, cbits, \
358	(fl)\|EVP_CIPH_FLAG_DEFAULT_ASN1, \
359	cipher##_init_key, NULL, NULL, NULL, NULL)
360
3aeb9348 DSH	361
	362	/*
	363	* Type needs to be a bit field Sub-type needs to be for variations on the
	364	* method, as in, can it do arbitrary encryption....
	365	*/
	366	struct evp_pkey_st {
	367	int type;
	368	int save_type;
2f545ae4	369	CRYPTO_REF_COUNT references;
3aeb9348 DSH	370	const EVP_PKEY_ASN1_METHOD *ameth;
3aeb9348 DSH	371	ENGINE *engine;
d19b01ad	372	ENGINE pmeth_engine; / If not NULL public key ENGINE to use */
3aeb9348	373	union {
a4cb54d2	374	void *ptr;
3aeb9348 DSH	375	# ifndef OPENSSL_NO_RSA
	376	struct rsa_st rsa; / RSA */
	377	# endif
	378	# ifndef OPENSSL_NO_DSA
	379	struct dsa_st dsa; / DSA */
	380	# endif
	381	# ifndef OPENSSL_NO_DH
	382	struct dh_st dh; / DH */
	383	# endif
	384	# ifndef OPENSSL_NO_EC
	385	struct ec_key_st ec; / ECC */
	386	# endif
	387	} pkey;
	388	int save_parameters;
	389	STACK_OF(X509_ATTRIBUTE) attributes; / [ 0 ] */
03273d61	390	CRYPTO_RWLOCK *lock;
3aeb9348	391	} /* EVP_PKEY */ ;
7b9f8f7f MC	392
7b9f8f7f MC	393
b3599dbb MC	394	void openssl_add_all_ciphers_int(void);
	395	void openssl_add_all_digests_int(void);
	396	void evp_cleanup_int(void);
0822e89a	397	void evp_app_cleanup_int(void);
9d6fcd42 TS	398
	399	/* Pulling defines out of C soure files */
	400
	401	#define EVP_RC4_KEY_SIZE 16
	402	#ifndef TLS1_1_VERSION
	403	# define TLS1_1_VERSION 0x0302
	404	#endif