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

/*
 * Copyright 2015-2018 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);
    int (*public_check) (EVP_PKEY *pkey);
    int (*param_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 ecx448_pkey_meth;
extern const EVP_PKEY_METHOD ed25519_pkey_meth;
extern const EVP_PKEY_METHOD ed448_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) \
                ? chunk*8 : chunk), \
            &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)


# ifndef OPENSSL_NO_EC

#define X25519_KEYLEN        32
#define X448_KEYLEN          56
#define ED448_KEYLEN         57

#define MAX_KEYLEN  ED448_KEYLEN

typedef struct {
    unsigned char pubkey[MAX_KEYLEN];
    unsigned char *privkey;
} ECX_KEY;

#endif

/*
 * 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 */
        ECX_KEY *ecx;           /* X25519, X448, Ed25519, Ed448 */
# 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 source files */

#define EVP_RC4_KEY_SIZE 16
#ifndef TLS1_1_VERSION
# define TLS1_1_VERSION   0x0302
#endif
Commit	Line	Data
27af42f9	1	/*
0d664759	2	* Copyright 2015-2018 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);
b0004708 PY	79	int (public_check) (EVP_PKEY pkey);
b0004708 PY	80	int (param_check) (EVP_PKEY pkey);
27af42f9 DSH	81	} /* EVP_PKEY_METHOD */ ;
27af42f9 DSH	82
a8eba56e	83	DEFINE_STACK_OF_CONST(EVP_PKEY_METHOD)
4a1f3f27	84
27af42f9	85	void evp_pkey_set_cb_translate(BN_GENCB cb, EVP_PKEY_CTX ctx);
8f463dbd DSH	86
	87	extern const EVP_PKEY_METHOD cmac_pkey_meth;
	88	extern const EVP_PKEY_METHOD dh_pkey_meth;
	89	extern const EVP_PKEY_METHOD dhx_pkey_meth;
	90	extern const EVP_PKEY_METHOD dsa_pkey_meth;
	91	extern const EVP_PKEY_METHOD ec_pkey_meth;
262bd85f	92	extern const EVP_PKEY_METHOD ecx25519_pkey_meth;
13735cfe	93	extern const EVP_PKEY_METHOD ecx448_pkey_meth;
42a3008a	94	extern const EVP_PKEY_METHOD ed25519_pkey_meth;
13735cfe	95	extern const EVP_PKEY_METHOD ed448_pkey_meth;
8f463dbd DSH	96	extern const EVP_PKEY_METHOD hmac_pkey_meth;
8f463dbd DSH	97	extern const EVP_PKEY_METHOD rsa_pkey_meth;
6577e008	98	extern const EVP_PKEY_METHOD rsa_pss_pkey_meth;
cefa762e	99	extern const EVP_PKEY_METHOD scrypt_pkey_meth;
1eff3485	100	extern const EVP_PKEY_METHOD tls1_prf_pkey_meth;
aacfb134	101	extern const EVP_PKEY_METHOD hkdf_pkey_meth;
52ad5b60	102	extern const EVP_PKEY_METHOD poly1305_pkey_meth;
3f5616d7	103	extern const EVP_PKEY_METHOD siphash_pkey_meth;
2db6bf6f RL	104
	105	struct evp_md_st {
	106	int type;
	107	int pkey_type;
	108	int md_size;
	109	unsigned long flags;
	110	int (init) (EVP_MD_CTX ctx);
	111	int (update) (EVP_MD_CTX ctx, const void *data, size_t count);
	112	int (final) (EVP_MD_CTX ctx, unsigned char *md);
	113	int (copy) (EVP_MD_CTX to, const EVP_MD_CTX *from);
	114	int (cleanup) (EVP_MD_CTX ctx);
	115	int block_size;
	116	int ctx_size; /* how big does the ctx->md_data need to be */
	117	/* control function */
	118	int (md_ctrl) (EVP_MD_CTX ctx, int cmd, int p1, void *p2);
	119	} /* EVP_MD */ ;
	120
e79f8773 RL	121	struct evp_cipher_st {
	122	int nid;
	123	int block_size;
	124	/* Default value for variable length ciphers */
	125	int key_len;
	126	int iv_len;
	127	/* Various flags */
	128	unsigned long flags;
	129	/* init key */
	130	int (init) (EVP_CIPHER_CTX ctx, const unsigned char *key,
	131	const unsigned char *iv, int enc);
	132	/* encrypt/decrypt data */
	133	int (do_cipher) (EVP_CIPHER_CTX ctx, unsigned char *out,
	134	const unsigned char *in, size_t inl);
	135	/* cleanup ctx */
	136	int (cleanup) (EVP_CIPHER_CTX );
	137	/* how big ctx->cipher_data needs to be */
	138	int ctx_size;
	139	/* Populate a ASN1_TYPE with parameters */
	140	int (set_asn1_parameters) (EVP_CIPHER_CTX , ASN1_TYPE *);
	141	/* Get parameters from a ASN1_TYPE */
	142	int (get_asn1_parameters) (EVP_CIPHER_CTX , ASN1_TYPE *);
	143	/* Miscellaneous operations */
	144	int (ctrl) (EVP_CIPHER_CTX , int type, int arg, void *ptr);
	145	/* Application data */
	146	void *app_data;
	147	} /* EVP_CIPHER */ ;
	148
	149	/* Macros to code block cipher wrappers */
	150
	151	/* Wrapper functions for each cipher mode */
	152
44ab2dfd MC	153	#define EVP_C_DATA(kstruct, ctx) \
44ab2dfd MC	154	((kstruct *)EVP_CIPHER_CTX_get_cipher_data(ctx))
e79f8773 RL	155
	156	#define BLOCK_CIPHER_ecb_loop() \
	157	size_t i, bl; \
	158	bl = EVP_CIPHER_CTX_cipher(ctx)->block_size; \
e8aa8b6c	159	if (inl < bl) return 1;\
e79f8773	160	inl -= bl; \
e8aa8b6c	161	for (i=0; i <= inl; i+=bl)
e79f8773 RL	162
	163	#define BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \
	164	static int cname##_ecb_cipher(EVP_CIPHER_CTX ctx, unsigned char out, const unsigned char *in, size_t inl) \
	165	{\
	166	BLOCK_CIPHER_ecb_loop() \
	167	cprefix##_ecb_encrypt(in + i, out + i, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_encrypting(ctx)); \
	168	return 1;\
	169	}
	170
	171	#define EVP_MAXCHUNK ((size_t)1<<(sizeof(long)*8-2))
	172
	173	#define BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched) \
	174	static int cname##_ofb_cipher(EVP_CIPHER_CTX ctx, unsigned char out, const unsigned char *in, size_t inl) \
	175	{\
	176	while(inl>=EVP_MAXCHUNK) {\
	177	int num = EVP_CIPHER_CTX_num(ctx);\
	178	cprefix##_ofb##cbits##_encrypt(in, out, (long)EVP_MAXCHUNK, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), &num); \
	179	EVP_CIPHER_CTX_set_num(ctx, num);\
	180	inl-=EVP_MAXCHUNK;\
	181	in +=EVP_MAXCHUNK;\
	182	out+=EVP_MAXCHUNK;\
	183	}\
	184	if (inl) {\
	185	int num = EVP_CIPHER_CTX_num(ctx);\
	186	cprefix##_ofb##cbits##_encrypt(in, out, (long)inl, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), &num); \
	187	EVP_CIPHER_CTX_set_num(ctx, num);\
	188	}\
	189	return 1;\
	190	}
	191
	192	#define BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \
	193	static int cname##_cbc_cipher(EVP_CIPHER_CTX ctx, unsigned char out, const unsigned char *in, size_t inl) \
	194	{\
	195	while(inl>=EVP_MAXCHUNK) \
	196	{\
	197	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));\
	198	inl-=EVP_MAXCHUNK;\
	199	in +=EVP_MAXCHUNK;\
	200	out+=EVP_MAXCHUNK;\
	201	}\
	202	if (inl)\
	203	cprefix##_cbc_encrypt(in, out, (long)inl, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), EVP_CIPHER_CTX_encrypting(ctx));\
	204	return 1;\
	205	}
	206
	207	#define BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \
	208	static int cname##_cfb##cbits##_cipher(EVP_CIPHER_CTX ctx, unsigned char out, const unsigned char *in, size_t inl) \
	209	{\
e8aa8b6c F	210	size_t chunk = EVP_MAXCHUNK;\
	211	if (cbits == 1) chunk >>= 3;\
	212	if (inl < chunk) chunk = inl;\
	213	while (inl && inl >= chunk)\
	214	{\
	215	int num = EVP_CIPHER_CTX_num(ctx);\
	216	cprefix##_cfb##cbits##_encrypt(in, out, (long) \
	217	((cbits == 1) \
	218	&& !EVP_CIPHER_CTX_test_flags(ctx, EVP_CIPH_FLAG_LENGTH_BITS) \
604e591e	219	? chunk*8 : chunk), \
e8aa8b6c F	220	&EVP_C_DATA(kstruct, ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx),\
	221	&num, EVP_CIPHER_CTX_encrypting(ctx));\
	222	EVP_CIPHER_CTX_set_num(ctx, num);\
	223	inl -= chunk;\
	224	in += chunk;\
	225	out += chunk;\
	226	if (inl < chunk) chunk = inl;\
	227	}\
	228	return 1;\
e79f8773 RL	229	}
	230
	231	#define BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \
	232	BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \
	233	BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \
	234	BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \
	235	BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched)
	236
	237	#define BLOCK_CIPHER_def1(cname, nmode, mode, MODE, kstruct, nid, block_size, \
	238	key_len, iv_len, flags, init_key, cleanup, \
	239	set_asn1, get_asn1, ctrl) \
	240	static const EVP_CIPHER cname##_##mode = { \
	241	nid##_##nmode, block_size, key_len, iv_len, \
	242	flags \| EVP_CIPH_##MODE##_MODE, \
	243	init_key, \
	244	cname##_##mode##_cipher, \
	245	cleanup, \
	246	sizeof(kstruct), \
	247	set_asn1, get_asn1,\
	248	ctrl, \
	249	NULL \
	250	}; \
	251	const EVP_CIPHER *EVP_##cname##_##mode(void) { return &cname##_##mode; }
	252
	253	#define BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, \
	254	iv_len, flags, init_key, cleanup, set_asn1, \
	255	get_asn1, ctrl) \
	256	BLOCK_CIPHER_def1(cname, cbc, cbc, CBC, kstruct, nid, block_size, key_len, \
	257	iv_len, flags, init_key, cleanup, set_asn1, get_asn1, ctrl)
	258
	259	#define BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, \
	260	iv_len, cbits, flags, init_key, cleanup, \
	261	set_asn1, get_asn1, ctrl) \
	262	BLOCK_CIPHER_def1(cname, cfb##cbits, cfb##cbits, CFB, kstruct, nid, 1, \
	263	key_len, iv_len, flags, init_key, cleanup, set_asn1, \
	264	get_asn1, ctrl)
	265
	266	#define BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, \
	267	iv_len, cbits, flags, init_key, cleanup, \
	268	set_asn1, get_asn1, ctrl) \
	269	BLOCK_CIPHER_def1(cname, ofb##cbits, ofb, OFB, kstruct, nid, 1, \
	270	key_len, iv_len, flags, init_key, cleanup, set_asn1, \
	271	get_asn1, ctrl)
	272
	273	#define BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, \
	274	flags, init_key, cleanup, set_asn1, \
	275	get_asn1, ctrl) \
	276	BLOCK_CIPHER_def1(cname, ecb, ecb, ECB, kstruct, nid, block_size, key_len, \
	277	0, flags, init_key, cleanup, set_asn1, get_asn1, ctrl)
	278
	279	#define BLOCK_CIPHER_defs(cname, kstruct, \
	280	nid, block_size, key_len, iv_len, cbits, flags, \
	281	init_key, cleanup, set_asn1, get_asn1, ctrl) \
	282	BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, iv_len, flags, \
	283	init_key, cleanup, set_asn1, get_asn1, ctrl) \
	284	BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, iv_len, cbits, \
	285	flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \
	286	BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, iv_len, cbits, \
	287	flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \
	288	BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, flags, \
	289	init_key, cleanup, set_asn1, get_asn1, ctrl)
	290
	291	/*-
	292	#define BLOCK_CIPHER_defs(cname, kstruct, \
293	nid, block_size, key_len, iv_len, flags,\
294	init_key, cleanup, set_asn1, get_asn1, ctrl)\
295	static const EVP_CIPHER cname##_cbc = {\
296	nid##_cbc, block_size, key_len, iv_len, \
297	flags \| EVP_CIPH_CBC_MODE,\
298	init_key,\
299	cname##_cbc_cipher,\
300	cleanup,\
301	sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
302	sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
303	set_asn1, get_asn1,\
304	ctrl, \
305	NULL \
306	};\
307	const EVP_CIPHER *EVP_##cname##_cbc(void) { return &cname##_cbc; }\
308	static const EVP_CIPHER cname##_cfb = {\
309	nid##_cfb64, 1, key_len, iv_len, \
310	flags \| EVP_CIPH_CFB_MODE,\
311	init_key,\
312	cname##_cfb_cipher,\
313	cleanup,\
314	sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
315	sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
316	set_asn1, get_asn1,\
317	ctrl,\
318	NULL \
319	};\
320	const EVP_CIPHER *EVP_##cname##_cfb(void) { return &cname##_cfb; }\
321	static const EVP_CIPHER cname##_ofb = {\
322	nid##_ofb64, 1, key_len, iv_len, \
323	flags \| EVP_CIPH_OFB_MODE,\
324	init_key,\
325	cname##_ofb_cipher,\
326	cleanup,\
327	sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
328	sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
329	set_asn1, get_asn1,\
330	ctrl,\
331	NULL \
332	};\
333	const EVP_CIPHER *EVP_##cname##_ofb(void) { return &cname##_ofb; }\
334	static const EVP_CIPHER cname##_ecb = {\
335	nid##_ecb, block_size, key_len, iv_len, \
336	flags \| EVP_CIPH_ECB_MODE,\
337	init_key,\
338	cname##_ecb_cipher,\
339	cleanup,\
340	sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
341	sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
342	set_asn1, get_asn1,\
343	ctrl,\
344	NULL \
345	};\
346	const EVP_CIPHER *EVP_##cname##_ecb(void) { return &cname##_ecb; }
347	*/
348
349	#define IMPLEMENT_BLOCK_CIPHER(cname, ksched, cprefix, kstruct, nid, \
350	block_size, key_len, iv_len, cbits, \
351	flags, init_key, \
352	cleanup, set_asn1, get_asn1, ctrl) \
353	BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \
354	BLOCK_CIPHER_defs(cname, kstruct, nid, block_size, key_len, iv_len, \
355	cbits, flags, init_key, cleanup, set_asn1, \
356	get_asn1, ctrl)
357
358	#define IMPLEMENT_CFBR(cipher,cprefix,kstruct,ksched,keysize,cbits,iv_len,fl) \
359	BLOCK_CIPHER_func_cfb(cipher##_##keysize,cprefix,cbits,kstruct,ksched) \
360	BLOCK_CIPHER_def_cfb(cipher##_##keysize,kstruct, \
361	NID_##cipher##_##keysize, keysize/8, iv_len, cbits, \
362	(fl)\|EVP_CIPH_FLAG_DEFAULT_ASN1, \
363	cipher##_init_key, NULL, NULL, NULL, NULL)
364
3aeb9348	365
13735cfe MC	366	# ifndef OPENSSL_NO_EC
	367
	368	#define X25519_KEYLEN 32
	369	#define X448_KEYLEN 56
	370	#define ED448_KEYLEN 57
	371
	372	#define MAX_KEYLEN ED448_KEYLEN
	373
	374	typedef struct {
	375	unsigned char pubkey[MAX_KEYLEN];
	376	unsigned char *privkey;
	377	} ECX_KEY;
	378
	379	#endif
	380
3aeb9348 DSH	381	/*
	382	* Type needs to be a bit field Sub-type needs to be for variations on the
	383	* method, as in, can it do arbitrary encryption....
	384	*/
	385	struct evp_pkey_st {
	386	int type;
	387	int save_type;
2f545ae4	388	CRYPTO_REF_COUNT references;
3aeb9348 DSH	389	const EVP_PKEY_ASN1_METHOD *ameth;
3aeb9348 DSH	390	ENGINE *engine;
d19b01ad	391	ENGINE pmeth_engine; / If not NULL public key ENGINE to use */
3aeb9348	392	union {
a4cb54d2	393	void *ptr;
3aeb9348 DSH	394	# ifndef OPENSSL_NO_RSA
	395	struct rsa_st rsa; / RSA */
	396	# endif
	397	# ifndef OPENSSL_NO_DSA
	398	struct dsa_st dsa; / DSA */
	399	# endif
	400	# ifndef OPENSSL_NO_DH
	401	struct dh_st dh; / DH */
	402	# endif
	403	# ifndef OPENSSL_NO_EC
	404	struct ec_key_st ec; / ECC */
13735cfe	405	ECX_KEY ecx; / X25519, X448, Ed25519, Ed448 */
3aeb9348 DSH	406	# endif
	407	} pkey;
	408	int save_parameters;
	409	STACK_OF(X509_ATTRIBUTE) attributes; / [ 0 ] */
03273d61	410	CRYPTO_RWLOCK *lock;
3aeb9348	411	} /* EVP_PKEY */ ;
7b9f8f7f MC	412
7b9f8f7f MC	413
b3599dbb MC	414	void openssl_add_all_ciphers_int(void);
	415	void openssl_add_all_digests_int(void);
	416	void evp_cleanup_int(void);
0822e89a	417	void evp_app_cleanup_int(void);
9d6fcd42	418
46f4e1be	419	/* Pulling defines out of C source files */
9d6fcd42 TS	420
	421	#define EVP_RC4_KEY_SIZE 16
	422	#ifndef TLS1_1_VERSION
	423	# define TLS1_1_VERSION 0x0302
	424	#endif