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

/*
 * Copyright 2015-2016 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);
} /* 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 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 tls1_prf_pkey_meth;
extern const EVP_PKEY_METHOD hkdf_pkey_meth;
extern const EVP_PKEY_METHOD poly1305_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;
    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);

/* 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	/*
aa6bb135	2	* Copyright 2015-2016 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);
	73	} /* EVP_PKEY_METHOD */ ;
	74
a8eba56e	75	DEFINE_STACK_OF_CONST(EVP_PKEY_METHOD)
4a1f3f27	76
27af42f9	77	void evp_pkey_set_cb_translate(BN_GENCB cb, EVP_PKEY_CTX ctx);
8f463dbd DSH	78
	79	extern const EVP_PKEY_METHOD cmac_pkey_meth;
	80	extern const EVP_PKEY_METHOD dh_pkey_meth;
	81	extern const EVP_PKEY_METHOD dhx_pkey_meth;
	82	extern const EVP_PKEY_METHOD dsa_pkey_meth;
	83	extern const EVP_PKEY_METHOD ec_pkey_meth;
262bd85f	84	extern const EVP_PKEY_METHOD ecx25519_pkey_meth;
8f463dbd DSH	85	extern const EVP_PKEY_METHOD hmac_pkey_meth;
8f463dbd DSH	86	extern const EVP_PKEY_METHOD rsa_pkey_meth;
6577e008	87	extern const EVP_PKEY_METHOD rsa_pss_pkey_meth;
1eff3485	88	extern const EVP_PKEY_METHOD tls1_prf_pkey_meth;
aacfb134	89	extern const EVP_PKEY_METHOD hkdf_pkey_meth;
52ad5b60	90	extern const EVP_PKEY_METHOD poly1305_pkey_meth;
2db6bf6f RL	91
	92	struct evp_md_st {
	93	int type;
	94	int pkey_type;
	95	int md_size;
	96	unsigned long flags;
	97	int (init) (EVP_MD_CTX ctx);
	98	int (update) (EVP_MD_CTX ctx, const void *data, size_t count);
	99	int (final) (EVP_MD_CTX ctx, unsigned char *md);
	100	int (copy) (EVP_MD_CTX to, const EVP_MD_CTX *from);
	101	int (cleanup) (EVP_MD_CTX ctx);
	102	int block_size;
	103	int ctx_size; /* how big does the ctx->md_data need to be */
	104	/* control function */
	105	int (md_ctrl) (EVP_MD_CTX ctx, int cmd, int p1, void *p2);
	106	} /* EVP_MD */ ;
	107
e79f8773 RL	108	struct evp_cipher_st {
	109	int nid;
	110	int block_size;
	111	/* Default value for variable length ciphers */
	112	int key_len;
	113	int iv_len;
	114	/* Various flags */
	115	unsigned long flags;
	116	/* init key */
	117	int (init) (EVP_CIPHER_CTX ctx, const unsigned char *key,
	118	const unsigned char *iv, int enc);
	119	/* encrypt/decrypt data */
	120	int (do_cipher) (EVP_CIPHER_CTX ctx, unsigned char *out,
	121	const unsigned char *in, size_t inl);
	122	/* cleanup ctx */
	123	int (cleanup) (EVP_CIPHER_CTX );
	124	/* how big ctx->cipher_data needs to be */
	125	int ctx_size;
	126	/* Populate a ASN1_TYPE with parameters */
	127	int (set_asn1_parameters) (EVP_CIPHER_CTX , ASN1_TYPE *);
	128	/* Get parameters from a ASN1_TYPE */
	129	int (get_asn1_parameters) (EVP_CIPHER_CTX , ASN1_TYPE *);
	130	/* Miscellaneous operations */
	131	int (ctrl) (EVP_CIPHER_CTX , int type, int arg, void *ptr);
	132	/* Application data */
	133	void *app_data;
	134	} /* EVP_CIPHER */ ;
	135
	136	/* Macros to code block cipher wrappers */
	137
	138	/* Wrapper functions for each cipher mode */
	139
44ab2dfd MC	140	#define EVP_C_DATA(kstruct, ctx) \
44ab2dfd MC	141	((kstruct *)EVP_CIPHER_CTX_get_cipher_data(ctx))
e79f8773 RL	142
	143	#define BLOCK_CIPHER_ecb_loop() \
	144	size_t i, bl; \
	145	bl = EVP_CIPHER_CTX_cipher(ctx)->block_size; \
e8aa8b6c	146	if (inl < bl) return 1;\
e79f8773	147	inl -= bl; \
e8aa8b6c	148	for (i=0; i <= inl; i+=bl)
e79f8773 RL	149
	150	#define BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \
	151	static int cname##_ecb_cipher(EVP_CIPHER_CTX ctx, unsigned char out, const unsigned char *in, size_t inl) \
	152	{\
	153	BLOCK_CIPHER_ecb_loop() \
	154	cprefix##_ecb_encrypt(in + i, out + i, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_encrypting(ctx)); \
	155	return 1;\
	156	}
	157
	158	#define EVP_MAXCHUNK ((size_t)1<<(sizeof(long)*8-2))
	159
	160	#define BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched) \
	161	static int cname##_ofb_cipher(EVP_CIPHER_CTX ctx, unsigned char out, const unsigned char *in, size_t inl) \
	162	{\
	163	while(inl>=EVP_MAXCHUNK) {\
	164	int num = EVP_CIPHER_CTX_num(ctx);\
	165	cprefix##_ofb##cbits##_encrypt(in, out, (long)EVP_MAXCHUNK, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), &num); \
	166	EVP_CIPHER_CTX_set_num(ctx, num);\
	167	inl-=EVP_MAXCHUNK;\
	168	in +=EVP_MAXCHUNK;\
	169	out+=EVP_MAXCHUNK;\
	170	}\
	171	if (inl) {\
	172	int num = EVP_CIPHER_CTX_num(ctx);\
	173	cprefix##_ofb##cbits##_encrypt(in, out, (long)inl, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), &num); \
	174	EVP_CIPHER_CTX_set_num(ctx, num);\
	175	}\
	176	return 1;\
	177	}
	178
	179	#define BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \
	180	static int cname##_cbc_cipher(EVP_CIPHER_CTX ctx, unsigned char out, const unsigned char *in, size_t inl) \
	181	{\
	182	while(inl>=EVP_MAXCHUNK) \
	183	{\
	184	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));\
	185	inl-=EVP_MAXCHUNK;\
	186	in +=EVP_MAXCHUNK;\
	187	out+=EVP_MAXCHUNK;\
	188	}\
	189	if (inl)\
	190	cprefix##_cbc_encrypt(in, out, (long)inl, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), EVP_CIPHER_CTX_encrypting(ctx));\
	191	return 1;\
	192	}
	193
	194	#define BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \
	195	static int cname##_cfb##cbits##_cipher(EVP_CIPHER_CTX ctx, unsigned char out, const unsigned char *in, size_t inl) \
	196	{\
e8aa8b6c F	197	size_t chunk = EVP_MAXCHUNK;\
	198	if (cbits == 1) chunk >>= 3;\
	199	if (inl < chunk) chunk = inl;\
	200	while (inl && inl >= chunk)\
	201	{\
	202	int num = EVP_CIPHER_CTX_num(ctx);\
	203	cprefix##_cfb##cbits##_encrypt(in, out, (long) \
	204	((cbits == 1) \
	205	&& !EVP_CIPHER_CTX_test_flags(ctx, EVP_CIPH_FLAG_LENGTH_BITS) \
	206	? inl*8 : inl), \
	207	&EVP_C_DATA(kstruct, ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx),\
	208	&num, EVP_CIPHER_CTX_encrypting(ctx));\
	209	EVP_CIPHER_CTX_set_num(ctx, num);\
	210	inl -= chunk;\
	211	in += chunk;\
	212	out += chunk;\
	213	if (inl < chunk) chunk = inl;\
	214	}\
	215	return 1;\
e79f8773 RL	216	}
	217
	218	#define BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \
	219	BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \
	220	BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \
	221	BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \
	222	BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched)
	223
	224	#define BLOCK_CIPHER_def1(cname, nmode, mode, MODE, kstruct, nid, block_size, \
	225	key_len, iv_len, flags, init_key, cleanup, \
	226	set_asn1, get_asn1, ctrl) \
	227	static const EVP_CIPHER cname##_##mode = { \
	228	nid##_##nmode, block_size, key_len, iv_len, \
	229	flags \| EVP_CIPH_##MODE##_MODE, \
	230	init_key, \
	231	cname##_##mode##_cipher, \
	232	cleanup, \
	233	sizeof(kstruct), \
	234	set_asn1, get_asn1,\
	235	ctrl, \
	236	NULL \
	237	}; \
	238	const EVP_CIPHER *EVP_##cname##_##mode(void) { return &cname##_##mode; }
	239
	240	#define BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, \
	241	iv_len, flags, init_key, cleanup, set_asn1, \
	242	get_asn1, ctrl) \
	243	BLOCK_CIPHER_def1(cname, cbc, cbc, CBC, kstruct, nid, block_size, key_len, \
	244	iv_len, flags, init_key, cleanup, set_asn1, get_asn1, ctrl)
	245
	246	#define BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, \
	247	iv_len, cbits, flags, init_key, cleanup, \
	248	set_asn1, get_asn1, ctrl) \
	249	BLOCK_CIPHER_def1(cname, cfb##cbits, cfb##cbits, CFB, kstruct, nid, 1, \
	250	key_len, iv_len, flags, init_key, cleanup, set_asn1, \
	251	get_asn1, ctrl)
	252
	253	#define BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, \
	254	iv_len, cbits, flags, init_key, cleanup, \
	255	set_asn1, get_asn1, ctrl) \
	256	BLOCK_CIPHER_def1(cname, ofb##cbits, ofb, OFB, kstruct, nid, 1, \
	257	key_len, iv_len, flags, init_key, cleanup, set_asn1, \
	258	get_asn1, ctrl)
	259
	260	#define BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, \
	261	flags, init_key, cleanup, set_asn1, \
	262	get_asn1, ctrl) \
	263	BLOCK_CIPHER_def1(cname, ecb, ecb, ECB, kstruct, nid, block_size, key_len, \
	264	0, flags, init_key, cleanup, set_asn1, get_asn1, ctrl)
	265
	266	#define BLOCK_CIPHER_defs(cname, kstruct, \
	267	nid, block_size, key_len, iv_len, cbits, flags, \
	268	init_key, cleanup, set_asn1, get_asn1, ctrl) \
	269	BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, iv_len, flags, \
	270	init_key, cleanup, set_asn1, get_asn1, ctrl) \
	271	BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, iv_len, cbits, \
	272	flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \
	273	BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, iv_len, cbits, \
	274	flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \
	275	BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, flags, \
	276	init_key, cleanup, set_asn1, get_asn1, ctrl)
	277
	278	/*-
	279	#define BLOCK_CIPHER_defs(cname, kstruct, \
280	nid, block_size, key_len, iv_len, flags,\
281	init_key, cleanup, set_asn1, get_asn1, ctrl)\
282	static const EVP_CIPHER cname##_cbc = {\
283	nid##_cbc, block_size, key_len, iv_len, \
284	flags \| EVP_CIPH_CBC_MODE,\
285	init_key,\
286	cname##_cbc_cipher,\
287	cleanup,\
288	sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
289	sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
290	set_asn1, get_asn1,\
291	ctrl, \
292	NULL \
293	};\
294	const EVP_CIPHER *EVP_##cname##_cbc(void) { return &cname##_cbc; }\
295	static const EVP_CIPHER cname##_cfb = {\
296	nid##_cfb64, 1, key_len, iv_len, \
297	flags \| EVP_CIPH_CFB_MODE,\
298	init_key,\
299	cname##_cfb_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##_cfb(void) { return &cname##_cfb; }\
308	static const EVP_CIPHER cname##_ofb = {\
309	nid##_ofb64, 1, key_len, iv_len, \
310	flags \| EVP_CIPH_OFB_MODE,\
311	init_key,\
312	cname##_ofb_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##_ofb(void) { return &cname##_ofb; }\
321	static const EVP_CIPHER cname##_ecb = {\
322	nid##_ecb, block_size, key_len, iv_len, \
323	flags \| EVP_CIPH_ECB_MODE,\
324	init_key,\
325	cname##_ecb_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##_ecb(void) { return &cname##_ecb; }
334	*/
335
336	#define IMPLEMENT_BLOCK_CIPHER(cname, ksched, cprefix, kstruct, nid, \
337	block_size, key_len, iv_len, cbits, \
338	flags, init_key, \
339	cleanup, set_asn1, get_asn1, ctrl) \
340	BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \
341	BLOCK_CIPHER_defs(cname, kstruct, nid, block_size, key_len, iv_len, \
342	cbits, flags, init_key, cleanup, set_asn1, \
343	get_asn1, ctrl)
344
345	#define IMPLEMENT_CFBR(cipher,cprefix,kstruct,ksched,keysize,cbits,iv_len,fl) \
346	BLOCK_CIPHER_func_cfb(cipher##_##keysize,cprefix,cbits,kstruct,ksched) \
347	BLOCK_CIPHER_def_cfb(cipher##_##keysize,kstruct, \
348	NID_##cipher##_##keysize, keysize/8, iv_len, cbits, \
349	(fl)\|EVP_CIPH_FLAG_DEFAULT_ASN1, \
350	cipher##_init_key, NULL, NULL, NULL, NULL)
351
3aeb9348 DSH	352
	353	/*
	354	* Type needs to be a bit field Sub-type needs to be for variations on the
	355	* method, as in, can it do arbitrary encryption....
	356	*/
	357	struct evp_pkey_st {
	358	int type;
	359	int save_type;
2f545ae4	360	CRYPTO_REF_COUNT references;
3aeb9348 DSH	361	const EVP_PKEY_ASN1_METHOD *ameth;
	362	ENGINE *engine;
	363	union {
a4cb54d2	364	void *ptr;
3aeb9348 DSH	365	# ifndef OPENSSL_NO_RSA
	366	struct rsa_st rsa; / RSA */
	367	# endif
	368	# ifndef OPENSSL_NO_DSA
	369	struct dsa_st dsa; / DSA */
	370	# endif
	371	# ifndef OPENSSL_NO_DH
	372	struct dh_st dh; / DH */
	373	# endif
	374	# ifndef OPENSSL_NO_EC
	375	struct ec_key_st ec; / ECC */
	376	# endif
	377	} pkey;
	378	int save_parameters;
	379	STACK_OF(X509_ATTRIBUTE) attributes; / [ 0 ] */
03273d61	380	CRYPTO_RWLOCK *lock;
3aeb9348	381	} /* EVP_PKEY */ ;
7b9f8f7f MC	382
7b9f8f7f MC	383
b3599dbb MC	384	void openssl_add_all_ciphers_int(void);
	385	void openssl_add_all_digests_int(void);
	386	void evp_cleanup_int(void);
9d6fcd42 TS	387
	388	/* Pulling defines out of C soure files */
	389
	390	#define EVP_RC4_KEY_SIZE 16
	391	#ifndef TLS1_1_VERSION
	392	# define TLS1_1_VERSION 0x0302
	393	#endif