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- /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
- *
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to. The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code. The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * "This product includes cryptographic software written by
- * Eric Young (eay@cryptsoft.com)"
- * The word 'cryptographic' can be left out if the rouines from the library
- * being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- * the apps directory (application code) you must include an acknowledgement:
- * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed. i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.] */
-
- #ifndef OPENSSL_HEADER_EVP_INTERNAL_H
- #define OPENSSL_HEADER_EVP_INTERNAL_H
-
- #include <openssl/base.h>
-
- #if defined(__cplusplus)
- extern "C" {
- #endif
-
-
- /* These values are flags for EVP_PKEY_ASN1_METHOD.flags. */
-
- /* ASN1_PKEY_SIGPARAM_NULL controls whether the default behavior of
- * EVP_DigestSignAlgorithm writes an explicit NULL parameter in the
- * AlgorithmIdentifier. */
- #define ASN1_PKEY_SIGPARAM_NULL 0x1
-
- /* evp_digest_sign_algorithm_result_t is the return value of the
- * digest_sign_algorithm function in EVP_PKEY_ASN1_METHOD. */
- typedef enum {
- /* EVP_DIGEST_SIGN_ALGORITHM_ERROR signals an error. */
- EVP_DIGEST_SIGN_ALGORITHM_ERROR = 0,
- /* EVP_DIGEST_SIGN_ALGORITHM_SUCCESS signals that the parameters were
- * serialized in the AlgorithmIdentifier. */
- EVP_DIGEST_SIGN_ALGORITHM_SUCCESS = 1,
- /* EVP_DIGEST_SIGN_ALGORITHM_DEFAULT signals that the parameters are
- * serialized using the default behavior. */
- EVP_DIGEST_SIGN_ALGORITHM_DEFAULT = 2,
- } evp_digest_sign_algorithm_result_t;
-
- struct evp_pkey_asn1_method_st {
- int pkey_id;
- int pkey_base_id;
- unsigned long pkey_flags;
-
- const char *pem_str;
-
- int (*pub_decode)(EVP_PKEY *pk, X509_PUBKEY *pub);
- int (*pub_encode)(X509_PUBKEY *pub, const EVP_PKEY *pk);
- int (*pub_cmp)(const EVP_PKEY *a, const EVP_PKEY *b);
- int (*pub_print)(BIO *out, const EVP_PKEY *pkey, int indent, ASN1_PCTX *pctx);
-
- int (*priv_decode)(EVP_PKEY *pk, PKCS8_PRIV_KEY_INFO *p8inf);
- int (*priv_encode)(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pk);
- int (*priv_print)(BIO *out, const EVP_PKEY *pkey, int indent,
- ASN1_PCTX *pctx);
-
- /* pkey_opaque returns 1 if the |pk| is opaque. Opaque keys are backed by
- * custom implementations which do not expose key material and parameters.*/
- int (*pkey_opaque)(const EVP_PKEY *pk);
-
- /* pkey_supports_digest returns one if |pkey| supports digests of
- * type |md|. This is intended for use with EVP_PKEYs backing custom
- * implementations which can't sign all digests. If null, it is
- * assumed that all digests are supported. */
- int (*pkey_supports_digest)(const EVP_PKEY *pkey, const EVP_MD *md);
-
- int (*pkey_size)(const EVP_PKEY *pk);
- int (*pkey_bits)(const EVP_PKEY *pk);
-
- int (*param_decode)(EVP_PKEY *pkey, const uint8_t **pder, int derlen);
- int (*param_encode)(const EVP_PKEY *pkey, uint8_t **pder);
- int (*param_missing)(const EVP_PKEY *pk);
- int (*param_copy)(EVP_PKEY *to, const EVP_PKEY *from);
- int (*param_cmp)(const EVP_PKEY *a, const EVP_PKEY *b);
- int (*param_print)(BIO *out, const EVP_PKEY *pkey, int indent,
- ASN1_PCTX *pctx);
- int (*sig_print)(BIO *out, const X509_ALGOR *sigalg, const ASN1_STRING *sig,
- int indent, ASN1_PCTX *pctx);
-
-
- void (*pkey_free)(EVP_PKEY *pkey);
-
- /* Legacy functions for old PEM */
-
- int (*old_priv_decode)(EVP_PKEY *pkey, const uint8_t **pder,
- int derlen);
- int (*old_priv_encode)(const EVP_PKEY *pkey, uint8_t **pder);
-
- /* Converting parameters to/from AlgorithmIdentifier (X509_ALGOR). */
- int (*digest_verify_init_from_algorithm)(EVP_MD_CTX *ctx,
- X509_ALGOR *algor,
- EVP_PKEY *pkey);
- evp_digest_sign_algorithm_result_t (*digest_sign_algorithm)(
- EVP_MD_CTX *ctx,
- X509_ALGOR *algor);
-
- } /* EVP_PKEY_ASN1_METHOD */;
-
-
- typedef int EVP_PKEY_gen_cb(EVP_PKEY_CTX *ctx);
-
- #define EVP_PKEY_OP_UNDEFINED 0
- #define EVP_PKEY_OP_PARAMGEN (1 << 1)
- #define EVP_PKEY_OP_KEYGEN (1 << 2)
- #define EVP_PKEY_OP_SIGN (1 << 3)
- #define EVP_PKEY_OP_VERIFY (1 << 4)
- #define EVP_PKEY_OP_VERIFYRECOVER (1 << 5)
- #define EVP_PKEY_OP_ENCRYPT (1 << 6)
- #define EVP_PKEY_OP_DECRYPT (1 << 7)
- #define EVP_PKEY_OP_DERIVE (1 << 8)
-
- #define EVP_PKEY_OP_TYPE_SIG \
- (EVP_PKEY_OP_SIGN | EVP_PKEY_OP_VERIFY | EVP_PKEY_OP_VERIFYRECOVER)
-
- #define EVP_PKEY_OP_TYPE_CRYPT (EVP_PKEY_OP_ENCRYPT | EVP_PKEY_OP_DECRYPT)
-
- #define EVP_PKEY_OP_TYPE_NOGEN \
- (EVP_PKEY_OP_SIG | EVP_PKEY_OP_CRYPT | EVP_PKEY_OP_DERIVE)
-
- #define EVP_PKEY_OP_TYPE_GEN (EVP_PKEY_OP_PARAMGEN | EVP_PKEY_OP_KEYGEN)
-
- /* EVP_PKEY_CTX_ctrl performs |cmd| on |ctx|. The |keytype| and |optype|
- * arguments can be -1 to specify that any type and operation are acceptable,
- * otherwise |keytype| must match the type of |ctx| and the bits of |optype|
- * must intersect the operation flags set on |ctx|.
- *
- * The |p1| and |p2| arguments depend on the value of |cmd|.
- *
- * It returns one on success and zero on error. */
- OPENSSL_EXPORT int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype,
- int cmd, int p1, void *p2);
-
- #define EVP_PKEY_CTRL_MD 1
- #define EVP_PKEY_CTRL_GET_MD 2
-
- /* EVP_PKEY_CTRL_PEER_KEY is called with different values of |p1|:
- * 0: Is called from |EVP_PKEY_derive_set_peer| and |p2| contains a peer key.
- * If the return value is <= 0, the key is rejected.
- * 1: Is called at the end of |EVP_PKEY_derive_set_peer| and |p2| contains a
- * peer key. If the return value is <= 0, the key is rejected.
- * 2: Is called with |p2| == NULL to test whether the peer's key was used.
- * (EC)DH always return one in this case.
- * 3: Is called with |p2| == NULL to set whether the peer's key was used.
- * (EC)DH always return one in this case. This was only used for GOST. */
- #define EVP_PKEY_CTRL_PEER_KEY 3
-
- /* EVP_PKEY_ALG_CTRL is the base value from which key-type specific ctrl
- * commands are numbered. */
- #define EVP_PKEY_ALG_CTRL 0x1000
-
- #define EVP_PKEY_CTRL_RSA_PADDING (EVP_PKEY_ALG_CTRL + 1)
- #define EVP_PKEY_CTRL_GET_RSA_PADDING (EVP_PKEY_ALG_CTRL + 2)
- #define EVP_PKEY_CTRL_RSA_PSS_SALTLEN (EVP_PKEY_ALG_CTRL + 3)
- #define EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN (EVP_PKEY_ALG_CTRL + 4)
- #define EVP_PKEY_CTRL_RSA_KEYGEN_BITS (EVP_PKEY_ALG_CTRL + 5)
- #define EVP_PKEY_CTRL_RSA_KEYGEN_PUBEXP (EVP_PKEY_ALG_CTRL + 6)
- #define EVP_PKEY_CTRL_RSA_OAEP_MD (EVP_PKEY_ALG_CTRL + 7)
- #define EVP_PKEY_CTRL_GET_RSA_OAEP_MD (EVP_PKEY_ALG_CTRL + 8)
- #define EVP_PKEY_CTRL_RSA_MGF1_MD (EVP_PKEY_ALG_CTRL + 9)
- #define EVP_PKEY_CTRL_GET_RSA_MGF1_MD (EVP_PKEY_ALG_CTRL + 10)
- #define EVP_PKEY_CTRL_RSA_OAEP_LABEL (EVP_PKEY_ALG_CTRL + 11)
- #define EVP_PKEY_CTRL_GET_RSA_OAEP_LABEL (EVP_PKEY_ALG_CTRL + 12)
-
- #define EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID (EVP_PKEY_ALG_CTRL + 1)
-
- 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;
- /* operation contains one of the |EVP_PKEY_OP_*| values. */
- int operation;
- /* Algorithm specific data */
- void *data;
- /* Application specific data */
- void *app_data;
- } /* EVP_PKEY_CTX */;
-
- 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, uint8_t *sig, size_t *siglen,
- const uint8_t *tbs, size_t tbslen);
-
- int (*verify_init)(EVP_PKEY_CTX *ctx);
- int (*verify)(EVP_PKEY_CTX *ctx, const uint8_t *sig, size_t siglen,
- const uint8_t *tbs, size_t tbslen);
-
- int (*encrypt_init)(EVP_PKEY_CTX *ctx);
- int (*encrypt)(EVP_PKEY_CTX *ctx, uint8_t *out, size_t *outlen,
- const uint8_t *in, size_t inlen);
-
- int (*decrypt_init)(EVP_PKEY_CTX *ctx);
- int (*decrypt)(EVP_PKEY_CTX *ctx, uint8_t *out, size_t *outlen,
- const uint8_t *in, size_t inlen);
-
- int (*derive_init)(EVP_PKEY_CTX *ctx);
- int (*derive)(EVP_PKEY_CTX *ctx, uint8_t *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 */;
-
-
- #if defined(__cplusplus)
- } /* extern C */
- #endif
-
- #endif /* OPENSSL_HEADER_EVP_INTERNAL_H */
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