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/* cipher-proto.h - Internal declarations
* Copyright (C) 2008, 2011 Free Software Foundation, Inc.
*
* This file is part of Libgcrypt.
*
* Libgcrypt is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser general Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* Libgcrypt is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
/* This file has been factored out from cipher.h so that it can be
used standalone in visibility.c . */
#ifndef G10_CIPHER_PROTO_H
#define G10_CIPHER_PROTO_H
enum pk_encoding;
/* Definition of a function used to report selftest failures.
DOMAIN is a string describing the function block:
"cipher", "digest", "pubkey or "random",
ALGO is the algorithm under test,
WHAT is a string describing what has been tested,
DESC is a string describing the error. */
typedef void (*selftest_report_func_t)(const char *domain,
int algo,
const char *what,
const char *errdesc);
/* Definition of the selftest functions. */
typedef gpg_err_code_t (*selftest_func_t)
(int algo, int extended, selftest_report_func_t report);
/*
*
* Public key related definitions.
*
*/
/* Type for the pk_generate function. */
typedef gcry_err_code_t (*gcry_pk_generate_t) (gcry_sexp_t genparms,
gcry_sexp_t *r_skey);
/* Type for the pk_check_secret_key function. */
typedef gcry_err_code_t (*gcry_pk_check_secret_key_t) (gcry_sexp_t keyparms);
/* Type for the pk_encrypt function. */
typedef gcry_err_code_t (*gcry_pk_encrypt_t) (gcry_sexp_t *r_ciph,
gcry_sexp_t s_data,
gcry_sexp_t keyparms);
/* Type for the pk_decrypt function. */
typedef gcry_err_code_t (*gcry_pk_decrypt_t) (gcry_sexp_t *r_plain,
gcry_sexp_t s_data,
gcry_sexp_t keyparms);
/* Type for the pk_sign function. */
typedef gcry_err_code_t (*gcry_pk_sign_t) (gcry_sexp_t *r_sig,
gcry_sexp_t s_data,
gcry_sexp_t keyparms);
/* Type for the pk_verify function. */
typedef gcry_err_code_t (*gcry_pk_verify_t) (gcry_sexp_t s_sig,
gcry_sexp_t s_data,
gcry_sexp_t keyparms);
/* Type for the pk_get_nbits function. */
typedef unsigned (*gcry_pk_get_nbits_t) (gcry_sexp_t keyparms);
/* The type used to compute the keygrip. */
typedef gpg_err_code_t (*pk_comp_keygrip_t) (gcry_md_hd_t md,
gcry_sexp_t keyparm);
/* The type used to query an ECC curve name. */
typedef const char *(*pk_get_curve_t)(gcry_sexp_t keyparms, int iterator,
unsigned int *r_nbits);
/* The type used to query ECC curve parameters by name. */
typedef gcry_sexp_t (*pk_get_curve_param_t)(const char *name);
/* Module specification structure for public key algoritms. */
typedef struct gcry_pk_spec
{
int algo;
struct {
unsigned int disabled:1;
unsigned int fips:1;
} flags;
int use;
const char *name;
const char **aliases;
const char *elements_pkey;
const char *elements_skey;
const char *elements_enc;
const char *elements_sig;
const char *elements_grip;
gcry_pk_generate_t generate;
gcry_pk_check_secret_key_t check_secret_key;
gcry_pk_encrypt_t encrypt;
gcry_pk_decrypt_t decrypt;
gcry_pk_sign_t sign;
gcry_pk_verify_t verify;
gcry_pk_get_nbits_t get_nbits;
selftest_func_t selftest;
pk_comp_keygrip_t comp_keygrip;
pk_get_curve_t get_curve;
pk_get_curve_param_t get_curve_param;
} gcry_pk_spec_t;
/*
*
* Symmetric cipher related definitions.
*
*/
/* Type for the cipher_setkey function. */
typedef gcry_err_code_t (*gcry_cipher_setkey_t) (void *c,
const unsigned char *key,
unsigned keylen);
/* Type for the cipher_encrypt function. */
typedef unsigned int (*gcry_cipher_encrypt_t) (void *c,
unsigned char *outbuf,
const unsigned char *inbuf);
/* Type for the cipher_decrypt function. */
typedef unsigned int (*gcry_cipher_decrypt_t) (void *c,
unsigned char *outbuf,
const unsigned char *inbuf);
/* Type for the cipher_stencrypt function. */
typedef void (*gcry_cipher_stencrypt_t) (void *c,
unsigned char *outbuf,
const unsigned char *inbuf,
size_t n);
/* Type for the cipher_stdecrypt function. */
typedef void (*gcry_cipher_stdecrypt_t) (void *c,
unsigned char *outbuf,
const unsigned char *inbuf,
size_t n);
/* The type used to convey additional information to a cipher. */
typedef gpg_err_code_t (*cipher_set_extra_info_t)
(void *c, int what, const void *buffer, size_t buflen);
/* The type used to set an IV directly in the algorithm module. */
typedef void (*cipher_setiv_func_t)(void *c, const byte *iv, size_t ivlen);
/* A structure to map OIDs to encryption modes. */
typedef struct gcry_cipher_oid_spec
{
const char *oid;
int mode;
} gcry_cipher_oid_spec_t;
/* Module specification structure for ciphers. */
typedef struct gcry_cipher_spec
{
int algo;
struct {
unsigned int disabled:1;
unsigned int fips:1;
} flags;
const char *name;
const char **aliases;
gcry_cipher_oid_spec_t *oids;
size_t blocksize;
size_t keylen;
size_t contextsize;
gcry_cipher_setkey_t setkey;
gcry_cipher_encrypt_t encrypt;
gcry_cipher_decrypt_t decrypt;
gcry_cipher_stencrypt_t stencrypt;
gcry_cipher_stdecrypt_t stdecrypt;
selftest_func_t selftest;
cipher_set_extra_info_t set_extra_info;
cipher_setiv_func_t setiv;
} gcry_cipher_spec_t;
/*
*
* Message digest related definitions.
*
*/
/* Type for the md_init function. */
typedef void (*gcry_md_init_t) (void *c, unsigned int flags);
/* Type for the md_write function. */
typedef void (*gcry_md_write_t) (void *c, const void *buf, size_t nbytes);
/* Type for the md_final function. */
typedef void (*gcry_md_final_t) (void *c);
/* Type for the md_read function. */
typedef unsigned char *(*gcry_md_read_t) (void *c);
typedef struct gcry_md_oid_spec
{
const char *oidstring;
} gcry_md_oid_spec_t;
/* Module specification structure for message digests. */
typedef struct gcry_md_spec
{
int algo;
struct {
unsigned int disabled:1;
unsigned int fips:1;
} flags;
const char *name;
unsigned char *asnoid;
int asnlen;
gcry_md_oid_spec_t *oids;
int mdlen;
gcry_md_init_t init;
gcry_md_write_t write;
gcry_md_final_t final;
gcry_md_read_t read;
size_t contextsize; /* allocate this amount of context */
selftest_func_t selftest;
} gcry_md_spec_t;
/* The selftest functions. */
gcry_error_t _gcry_cipher_selftest (int algo, int extended,
selftest_report_func_t report);
gcry_error_t _gcry_md_selftest (int algo, int extended,
selftest_report_func_t report);
gcry_error_t _gcry_pk_selftest (int algo, int extended,
selftest_report_func_t report);
gcry_error_t _gcry_hmac_selftest (int algo, int extended,
selftest_report_func_t report);
gcry_error_t _gcry_random_selftest (selftest_report_func_t report);
#endif /*G10_CIPHER_PROTO_H*/
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