|
- /* 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_CIPHER_INTERNAL_H
- #define OPENSSL_HEADER_CIPHER_INTERNAL_H
-
- #include <openssl/base.h>
-
- #include <openssl/asn1t.h>
-
- #if defined(__cplusplus)
- extern "C" {
- #endif
-
-
- struct evp_cipher_st {
- /* type contains a NID identifing the cipher. (For example, NID_rc4.) */
- int nid;
-
- /* block_size contains the block size, in bytes, of the cipher, or 1 for a
- * stream cipher. */
- unsigned block_size;
-
- /* key_len contains the key size, in bytes, for the cipher. If the cipher
- * takes a variable key size then this contains the default size. */
- unsigned key_len;
-
- /* iv_len contains the IV size, in bytes, or zero if inapplicable. */
- unsigned iv_len;
-
- /* ctx_size contains the size, in bytes, of the per-key context for this
- * cipher. */
- unsigned ctx_size;
-
- /* flags contains the OR of a number of flags. See |EVP_CIPH_*|. */
- uint32_t flags;
-
- /* app_data is a pointer to opaque, user data. */
- void *app_data;
-
- int (*init)(EVP_CIPHER_CTX *ctx, const uint8_t *key, const uint8_t *iv,
- int enc);
-
- int (*cipher)(EVP_CIPHER_CTX *ctx, uint8_t *out, const uint8_t *in,
- size_t inl);
-
- int (*cleanup)(EVP_CIPHER_CTX *);
-
- int (*ctrl)(EVP_CIPHER_CTX *, int type, int arg, void *ptr);
- };
-
- /* EVP_CIPH_MODE_MASK contains the bits of |flags| that represent the mode. */
- #define EVP_CIPH_MODE_MASK 0x3f
-
-
- struct evp_aead_ctx_st;
-
- /* EVP_AEAD represents a specific AEAD algorithm. */
- struct evp_aead_st {
- uint8_t key_len;
- uint8_t nonce_len;
- uint8_t overhead;
- uint8_t max_tag_len;
-
- int (*init)(struct evp_aead_ctx_st *, const uint8_t *key,
- size_t key_len, size_t tag_len);
- void (*cleanup)(struct evp_aead_ctx_st *);
-
- int (*seal)(const struct evp_aead_ctx_st *ctx, uint8_t *out,
- size_t *out_len, size_t max_out_len, const uint8_t *nonce,
- size_t nonce_len, const uint8_t *in, size_t in_len,
- const uint8_t *ad, size_t ad_len);
-
- int (*open)(const struct evp_aead_ctx_st *ctx, uint8_t *out,
- size_t *out_len, size_t max_out_len, const uint8_t *nonce,
- size_t nonce_len, const uint8_t *in, size_t in_len,
- const uint8_t *ad, size_t ad_len);
- };
-
- #if defined(__cplusplus)
- } /* extern C */
- #endif
-
- #endif /* OPENSSL_HEADER_CIPHER_INTERNAL_H */
|