512 lines
18 KiB
C
Executable file
512 lines
18 KiB
C
Executable file
/* $OpenBSD: evp_locl.h,v 1.22 2022/01/14 08:38:05 tb Exp $ */
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/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
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* project 2000.
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*/
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/* ====================================================================
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* Copyright (c) 1999 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* licensing@OpenSSL.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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#ifndef HEADER_EVP_LOCL_H
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#define HEADER_EVP_LOCL_H
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__BEGIN_HIDDEN_DECLS
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/*
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* Don't free md_ctx->pctx in EVP_MD_CTX_cleanup(). Needed for ownership
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* handling in EVP_MD_CTX_set_pkey_ctx().
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*/
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#define EVP_MD_CTX_FLAG_KEEP_PKEY_CTX 0x0400
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typedef int evp_sign_method(int type, const unsigned char *m,
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unsigned int m_length, unsigned char *sigret, unsigned int *siglen,
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void *key);
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typedef int evp_verify_method(int type, const unsigned char *m,
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unsigned int m_length, const unsigned char *sigbuf, unsigned int siglen,
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void *key);
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/* Type needs to be a bit field
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* Sub-type needs to be for variations on the method, as in, can it do
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* arbitrary encryption.... */
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struct evp_pkey_st {
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int type;
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int save_type;
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int references;
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const EVP_PKEY_ASN1_METHOD *ameth;
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ENGINE *engine;
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union {
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char *ptr;
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#ifndef OPENSSL_NO_RSA
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struct rsa_st *rsa; /* RSA */
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#endif
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#ifndef OPENSSL_NO_DSA
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struct dsa_st *dsa; /* DSA */
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#endif
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#ifndef OPENSSL_NO_DH
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struct dh_st *dh; /* DH */
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#endif
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#ifndef OPENSSL_NO_EC
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struct ec_key_st *ec; /* ECC */
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#endif
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#ifndef OPENSSL_NO_GOST
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struct gost_key_st *gost; /* GOST */
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#endif
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} pkey;
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int save_parameters;
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STACK_OF(X509_ATTRIBUTE) *attributes; /* [ 0 ] */
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} /* EVP_PKEY */;
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struct env_md_st {
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int type;
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int pkey_type;
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int md_size;
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unsigned long flags;
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int (*init)(EVP_MD_CTX *ctx);
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int (*update)(EVP_MD_CTX *ctx, const void *data, size_t count);
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int (*final)(EVP_MD_CTX *ctx, unsigned char *md);
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int (*copy)(EVP_MD_CTX *to, const EVP_MD_CTX *from);
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int (*cleanup)(EVP_MD_CTX *ctx);
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int block_size;
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int ctx_size; /* how big does the ctx->md_data need to be */
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/* control function */
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int (*md_ctrl)(EVP_MD_CTX *ctx, int cmd, int p1, void *p2);
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} /* EVP_MD */;
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struct env_md_ctx_st {
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const EVP_MD *digest;
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ENGINE *engine; /* functional reference if 'digest' is ENGINE-provided */
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unsigned long flags;
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void *md_data;
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/* Public key context for sign/verify */
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EVP_PKEY_CTX *pctx;
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/* Update function: usually copied from EVP_MD */
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int (*update)(EVP_MD_CTX *ctx, const void *data, size_t count);
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} /* EVP_MD_CTX */;
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struct evp_cipher_st {
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int nid;
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int block_size;
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int key_len; /* Default value for variable length ciphers */
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int iv_len;
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unsigned long flags; /* Various flags */
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int (*init)(EVP_CIPHER_CTX *ctx, const unsigned char *key,
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const unsigned char *iv, int enc); /* init key */
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int (*do_cipher)(EVP_CIPHER_CTX *ctx, unsigned char *out,
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const unsigned char *in, size_t inl);/* encrypt/decrypt data */
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int (*cleanup)(EVP_CIPHER_CTX *); /* cleanup ctx */
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int ctx_size; /* how big ctx->cipher_data needs to be */
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int (*set_asn1_parameters)(EVP_CIPHER_CTX *, ASN1_TYPE *); /* Populate a ASN1_TYPE with parameters */
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int (*get_asn1_parameters)(EVP_CIPHER_CTX *, ASN1_TYPE *); /* Get parameters from a ASN1_TYPE */
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int (*ctrl)(EVP_CIPHER_CTX *, int type, int arg, void *ptr); /* Miscellaneous operations */
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void *app_data; /* Application data */
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} /* EVP_CIPHER */;
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struct evp_cipher_ctx_st {
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const EVP_CIPHER *cipher;
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ENGINE *engine; /* functional reference if 'cipher' is ENGINE-provided */
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int encrypt; /* encrypt or decrypt */
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int buf_len; /* number we have left */
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unsigned char oiv[EVP_MAX_IV_LENGTH]; /* original iv */
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unsigned char iv[EVP_MAX_IV_LENGTH]; /* working iv */
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unsigned char buf[EVP_MAX_BLOCK_LENGTH];/* saved partial block */
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int num; /* used by cfb/ofb/ctr mode */
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void *app_data; /* application stuff */
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int key_len; /* May change for variable length cipher */
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unsigned long flags; /* Various flags */
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void *cipher_data; /* per EVP data */
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int final_used;
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int block_mask;
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unsigned char final[EVP_MAX_BLOCK_LENGTH];/* possible final block */
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} /* EVP_CIPHER_CTX */;
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struct evp_Encode_Ctx_st {
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int num; /* number saved in a partial encode/decode */
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int length; /* The length is either the output line length
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* (in input bytes) or the shortest input line
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* length that is ok. Once decoding begins,
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* the length is adjusted up each time a longer
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* line is decoded */
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unsigned char enc_data[80]; /* data to encode */
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int line_num; /* number read on current line */
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int expect_nl;
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} /* EVP_ENCODE_CTX */;
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/* Macros to code block cipher wrappers */
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/* Wrapper functions for each cipher mode */
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#define BLOCK_CIPHER_ecb_loop() \
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size_t i, bl; \
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bl = ctx->cipher->block_size;\
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if(inl < bl) return 1;\
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inl -= bl; \
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for(i=0; i <= inl; i+=bl)
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#define BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \
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static int cname##_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
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{\
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BLOCK_CIPHER_ecb_loop() \
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cprefix##_ecb_encrypt(in + i, out + i, &((kstruct *)ctx->cipher_data)->ksched, ctx->encrypt);\
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return 1;\
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}
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#define EVP_MAXCHUNK ((size_t)1<<(sizeof(long)*8-2))
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#define BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched) \
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static int cname##_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
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{\
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while(inl>=EVP_MAXCHUNK)\
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{\
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cprefix##_ofb##cbits##_encrypt(in, out, (long)EVP_MAXCHUNK, &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, &ctx->num);\
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inl-=EVP_MAXCHUNK;\
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in +=EVP_MAXCHUNK;\
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out+=EVP_MAXCHUNK;\
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}\
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if (inl)\
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cprefix##_ofb##cbits##_encrypt(in, out, (long)inl, &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, &ctx->num);\
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return 1;\
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}
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#define BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \
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static int cname##_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
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{\
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while(inl>=EVP_MAXCHUNK) \
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{\
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cprefix##_cbc_encrypt(in, out, (long)EVP_MAXCHUNK, &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, ctx->encrypt);\
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inl-=EVP_MAXCHUNK;\
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in +=EVP_MAXCHUNK;\
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out+=EVP_MAXCHUNK;\
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}\
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if (inl)\
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cprefix##_cbc_encrypt(in, out, (long)inl, &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, ctx->encrypt);\
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return 1;\
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}
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#define BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \
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static int cname##_cfb##cbits##_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
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{\
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size_t chunk=EVP_MAXCHUNK;\
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if (cbits==1) chunk>>=3;\
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if (inl<chunk) chunk=inl;\
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while(inl && inl>=chunk)\
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{\
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cprefix##_cfb##cbits##_encrypt(in, out, (long)((cbits==1) && !(ctx->flags & EVP_CIPH_FLAG_LENGTH_BITS) ?inl*8:inl), &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, &ctx->num, ctx->encrypt);\
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inl-=chunk;\
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in +=chunk;\
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out+=chunk;\
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if(inl<chunk) chunk=inl;\
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}\
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return 1;\
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}
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#define BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \
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BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \
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BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \
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BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \
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BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched)
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#define BLOCK_CIPHER_def1(cname, nmode, mode, MODE, kstruct, nid, block_size, \
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key_len, iv_len, flags, init_key, cleanup, \
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set_asn1, get_asn1, ctrl) \
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static const EVP_CIPHER cname##_##mode = { \
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nid##_##nmode, block_size, key_len, iv_len, \
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flags | EVP_CIPH_##MODE##_MODE, \
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init_key, \
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cname##_##mode##_cipher, \
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cleanup, \
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sizeof(kstruct), \
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set_asn1, get_asn1,\
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ctrl, \
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NULL \
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}; \
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const EVP_CIPHER *EVP_##cname##_##mode(void) { return &cname##_##mode; }
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#define BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, \
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iv_len, flags, init_key, cleanup, set_asn1, \
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get_asn1, ctrl) \
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BLOCK_CIPHER_def1(cname, cbc, cbc, CBC, kstruct, nid, block_size, key_len, \
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iv_len, flags, init_key, cleanup, set_asn1, get_asn1, ctrl)
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#define BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, \
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iv_len, cbits, flags, init_key, cleanup, \
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set_asn1, get_asn1, ctrl) \
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BLOCK_CIPHER_def1(cname, cfb##cbits, cfb##cbits, CFB, kstruct, nid, 1, \
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key_len, iv_len, flags, init_key, cleanup, set_asn1, \
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get_asn1, ctrl)
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#define BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, \
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iv_len, cbits, flags, init_key, cleanup, \
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set_asn1, get_asn1, ctrl) \
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BLOCK_CIPHER_def1(cname, ofb##cbits, ofb, OFB, kstruct, nid, 1, \
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key_len, iv_len, flags, init_key, cleanup, set_asn1, \
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get_asn1, ctrl)
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#define BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, \
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flags, init_key, cleanup, set_asn1, \
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get_asn1, ctrl) \
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BLOCK_CIPHER_def1(cname, ecb, ecb, ECB, kstruct, nid, block_size, key_len, \
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0, flags, init_key, cleanup, set_asn1, get_asn1, ctrl)
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#define BLOCK_CIPHER_defs(cname, kstruct, \
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nid, block_size, key_len, iv_len, cbits, flags, \
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init_key, cleanup, set_asn1, get_asn1, ctrl) \
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BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, iv_len, flags, \
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init_key, cleanup, set_asn1, get_asn1, ctrl) \
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BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, iv_len, cbits, \
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flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \
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BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, iv_len, cbits, \
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flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \
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BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, flags, \
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init_key, cleanup, set_asn1, get_asn1, ctrl)
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/*
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#define BLOCK_CIPHER_defs(cname, kstruct, \
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nid, block_size, key_len, iv_len, flags,\
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init_key, cleanup, set_asn1, get_asn1, ctrl)\
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static const EVP_CIPHER cname##_cbc = {\
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nid##_cbc, block_size, key_len, iv_len, \
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flags | EVP_CIPH_CBC_MODE,\
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init_key,\
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cname##_cbc_cipher,\
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cleanup,\
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sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
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sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
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set_asn1, get_asn1,\
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ctrl, \
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NULL \
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};\
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const EVP_CIPHER *EVP_##cname##_cbc(void) { return &cname##_cbc; }\
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static const EVP_CIPHER cname##_cfb = {\
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nid##_cfb64, 1, key_len, iv_len, \
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flags | EVP_CIPH_CFB_MODE,\
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init_key,\
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cname##_cfb_cipher,\
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cleanup,\
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sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
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sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
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set_asn1, get_asn1,\
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ctrl,\
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NULL \
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};\
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const EVP_CIPHER *EVP_##cname##_cfb(void) { return &cname##_cfb; }\
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static const EVP_CIPHER cname##_ofb = {\
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nid##_ofb64, 1, key_len, iv_len, \
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flags | EVP_CIPH_OFB_MODE,\
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init_key,\
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cname##_ofb_cipher,\
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cleanup,\
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sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
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sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
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set_asn1, get_asn1,\
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ctrl,\
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NULL \
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};\
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const EVP_CIPHER *EVP_##cname##_ofb(void) { return &cname##_ofb; }\
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static const EVP_CIPHER cname##_ecb = {\
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nid##_ecb, block_size, key_len, iv_len, \
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flags | EVP_CIPH_ECB_MODE,\
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init_key,\
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cname##_ecb_cipher,\
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cleanup,\
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sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
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sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
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set_asn1, get_asn1,\
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ctrl,\
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NULL \
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};\
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const EVP_CIPHER *EVP_##cname##_ecb(void) { return &cname##_ecb; }
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*/
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#define IMPLEMENT_BLOCK_CIPHER(cname, ksched, cprefix, kstruct, nid, \
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block_size, key_len, iv_len, cbits, \
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flags, init_key, \
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cleanup, set_asn1, get_asn1, ctrl) \
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BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \
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BLOCK_CIPHER_defs(cname, kstruct, nid, block_size, key_len, iv_len, \
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cbits, flags, init_key, cleanup, set_asn1, \
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get_asn1, ctrl)
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#define EVP_C_DATA(kstruct, ctx) ((kstruct *)(ctx)->cipher_data)
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#define IMPLEMENT_CFBR(cipher,cprefix,kstruct,ksched,keysize,cbits,iv_len) \
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BLOCK_CIPHER_func_cfb(cipher##_##keysize,cprefix,cbits,kstruct,ksched) \
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BLOCK_CIPHER_def_cfb(cipher##_##keysize,kstruct, \
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NID_##cipher##_##keysize, keysize/8, iv_len, cbits, \
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0, cipher##_init_key, NULL, \
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EVP_CIPHER_set_asn1_iv, \
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EVP_CIPHER_get_asn1_iv, \
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NULL)
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struct evp_pkey_ctx_st {
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/* Method associated with this operation */
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const EVP_PKEY_METHOD *pmeth;
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/* Engine that implements this method or NULL if builtin */
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ENGINE *engine;
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/* Key: may be NULL */
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EVP_PKEY *pkey;
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/* Peer key for key agreement, may be NULL */
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EVP_PKEY *peerkey;
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/* Actual operation */
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int operation;
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/* Algorithm specific data */
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void *data;
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/* Application specific data */
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void *app_data;
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/* Keygen callback */
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EVP_PKEY_gen_cb *pkey_gencb;
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/* implementation specific keygen data */
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int *keygen_info;
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int keygen_info_count;
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} /* EVP_PKEY_CTX */;
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#define EVP_PKEY_FLAG_DYNAMIC 1
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struct evp_pkey_method_st {
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int pkey_id;
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int flags;
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int (*init)(EVP_PKEY_CTX *ctx);
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int (*copy)(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src);
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void (*cleanup)(EVP_PKEY_CTX *ctx);
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int (*paramgen_init)(EVP_PKEY_CTX *ctx);
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int (*paramgen)(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey);
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int (*keygen_init)(EVP_PKEY_CTX *ctx);
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int (*keygen)(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey);
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int (*sign_init)(EVP_PKEY_CTX *ctx);
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int (*sign)(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
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const unsigned char *tbs, size_t tbslen);
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int (*verify_init)(EVP_PKEY_CTX *ctx);
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int (*verify)(EVP_PKEY_CTX *ctx,
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const unsigned char *sig, size_t siglen,
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const unsigned char *tbs, size_t tbslen);
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|
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int (*verify_recover_init)(EVP_PKEY_CTX *ctx);
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int (*verify_recover)(EVP_PKEY_CTX *ctx,
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|
unsigned char *rout, size_t *routlen,
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|
const unsigned char *sig, size_t siglen);
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|
|
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int (*signctx_init)(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx);
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int (*signctx)(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
|
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EVP_MD_CTX *mctx);
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|
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int (*verifyctx_init)(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx);
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int (*verifyctx)(EVP_PKEY_CTX *ctx, const unsigned char *sig,
|
|
int siglen, EVP_MD_CTX *mctx);
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|
|
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int (*encrypt_init)(EVP_PKEY_CTX *ctx);
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int (*encrypt)(EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
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const unsigned char *in, size_t inlen);
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|
|
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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);
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|
|
|
int (*derive_init)(EVP_PKEY_CTX *ctx);
|
|
int (*derive)(EVP_PKEY_CTX *ctx, unsigned char *key, size_t *keylen);
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|
|
|
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);
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|
|
|
int (*check)(EVP_PKEY *pkey);
|
|
int (*public_check)(EVP_PKEY *pkey);
|
|
int (*param_check)(EVP_PKEY *pkey);
|
|
} /* EVP_PKEY_METHOD */;
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|
|
|
void evp_pkey_set_cb_translate(BN_GENCB *cb, EVP_PKEY_CTX *ctx);
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|
|
|
int PKCS5_v2_PBKDF2_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
|
|
ASN1_TYPE *param, const EVP_CIPHER *c, const EVP_MD *md, int en_de);
|
|
|
|
/* EVP_AEAD represents a specific AEAD algorithm. */
|
|
struct evp_aead_st {
|
|
unsigned char key_len;
|
|
unsigned char nonce_len;
|
|
unsigned char overhead;
|
|
unsigned char max_tag_len;
|
|
|
|
int (*init)(struct evp_aead_ctx_st*, const unsigned char *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, unsigned char *out,
|
|
size_t *out_len, size_t max_out_len, const unsigned char *nonce,
|
|
size_t nonce_len, const unsigned char *in, size_t in_len,
|
|
const unsigned char *ad, size_t ad_len);
|
|
|
|
int (*open)(const struct evp_aead_ctx_st *ctx, unsigned char *out,
|
|
size_t *out_len, size_t max_out_len, const unsigned char *nonce,
|
|
size_t nonce_len, const unsigned char *in, size_t in_len,
|
|
const unsigned char *ad, size_t ad_len);
|
|
};
|
|
|
|
/* An EVP_AEAD_CTX represents an AEAD algorithm configured with a specific key
|
|
* and message-independent IV. */
|
|
struct evp_aead_ctx_st {
|
|
const EVP_AEAD *aead;
|
|
/* aead_state is an opaque pointer to the AEAD specific state. */
|
|
void *aead_state;
|
|
};
|
|
|
|
int EVP_PKEY_CTX_md(EVP_PKEY_CTX *ctx, int optype, int cmd, const char *md_name);
|
|
|
|
__END_HIDDEN_DECLS
|
|
|
|
#endif /* !HEADER_EVP_LOCL_H */
|