mirror of http://gerrit.asterisk.org/asterisk
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@66071 65c4cc65-6c06-0410-ace0-fbb531ad65f31.6.0
Kevin P. Fleming
18 years ago
parent
a3d04ce638
commit
4573b36af1
@ -1,170 +1,65 @@
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|||||||
/*
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/*
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* Asterisk -- An open source telephony toolkit.
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* Asterisk -- An open source telephony toolkit.
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*
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*
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* Copyright (C) 20075, Digium, Inc.
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*
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* Kevin P. Fleming <kpfleming@digium.com>
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*
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* See http://www.asterisk.org for more information about
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* any of the maintainers of this project for assistance;
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||||||
* the project provides a web site, mailing lists and IRC
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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*/
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/*
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/*! \file
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---------------------------------------------------------------------------
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* \brief Wrappers for AES encryption/decryption
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Copyright (c) 2003, Dr Brian Gladman <brg@gladman.me.uk>, Worcester, UK.
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*
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All rights reserved.
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* These wrappers provided a generic interface to either the
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* AES methods provided by OpenSSL's crypto library, or the
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LICENSE TERMS
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* AES implementation included with Asterisk.
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*/
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The free distribution and use of this software in both source and binary
|
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form is allowed (with or without changes) provided that:
|
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|
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1. distributions of this source code include 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. distributions in binary form include the above copyright
|
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notice, this list of conditions and the following disclaimer
|
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in the documentation and/or other associated materials;
|
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||||||
|
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3. the copyright holder's name is not used to endorse products
|
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||||||
built using this software without specific written permission.
|
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|
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ALTERNATIVELY, provided that this notice is retained in full, this product
|
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||||||
may be distributed under the terms of the GNU General Public License (GPL),
|
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||||||
in which case the provisions of the GPL apply INSTEAD OF those given above.
|
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||||||
|
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||||||
DISCLAIMER
|
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||||||
|
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||||||
This software is provided 'as is' with no explicit or implied warranties
|
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||||||
in respect of its properties, including, but not limited to, correctness
|
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||||||
and/or fitness for purpose.
|
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||||||
---------------------------------------------------------------------------
|
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Issue Date: 26/08/2003
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*/
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/*!\file
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\brief This file contains the definitions required to use AES in C. See aesopt.h
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for optimisation details.
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*/
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#ifndef _AES_H
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#define _AES_H
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/* This include is used to find 8 & 32 bit unsigned integer types */
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#include "limits.h"
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#if defined(__cplusplus)
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extern "C"
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{
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#endif
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#define AES_128 /* define if AES with 128 bit keys is needed */
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#undef AES_192 /* define if AES with 192 bit keys is needed */
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#undef AES_256 /* define if AES with 256 bit keys is needed */
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#undef AES_VAR /* define if a variable key size is needed */
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/* The following must also be set in assembler files if being used */
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#define AES_ENCRYPT /* if support for encryption is needed */
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#define AES_DECRYPT /* if support for decryption is needed */
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#define AES_ERR_CHK /* for parameter checks & error return codes */
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#if UCHAR_MAX == 0xff /* an unsigned 8 bit type */
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typedef unsigned char aes_08t;
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#else
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#error Please define aes_08t as an 8-bit unsigned integer type in aes.h
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#endif
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#if UINT_MAX == 0xffffffff /* an unsigned 32 bit type */
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typedef unsigned int aes_32t;
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#elif ULONG_MAX == 0xffffffff
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typedef unsigned long aes_32t;
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#else
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#error Please define aes_32t as a 32-bit unsigned integer type in aes.h
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#endif
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#define AES_BLOCK_SIZE 16 /* the AES block size in bytes */
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#define N_COLS 4 /* the number of columns in the state */
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/* a maximum of 60 32-bit words are needed for the key schedule but */
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/* 64 are claimed to allow space at the top for a CBC xor buffer. */
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/* If this is not needed, this value can be reduced to 60. A value */
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/* of 64 may also help in maintaining alignment in some situations */
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#define KS_LENGTH 64
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#ifdef AES_ERR_CHK
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#define aes_ret int
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#define aes_good 0
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#define aes_error -1
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#else
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#define aes_ret void
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#endif
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#ifndef AES_DLL /* implement normal/DLL functions */
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#define aes_rval aes_ret
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#else
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#define aes_rval aes_ret __declspec(dllexport) _stdcall
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#endif
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/* This routine must be called before first use if non-static */
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#ifndef _ASTERISK_AES_H
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/* tables are being used */
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#define _ASTERISK_AES_H
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void gen_tabs(void);
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#ifdef HAVE_CRYPTO
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/* The key length (klen) is input in bytes when it is in the range */
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/* Use the OpenSSL crypto library */
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/* 16 <= klen <= 32 or in bits when in the range 128 <= klen <= 256 */
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#include "openssl/aes.h"
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#ifdef AES_ENCRYPT
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typedef AES_KEY ast_aes_encrypt_key;
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typedef AES_KEY ast_aes_decrypt_key;
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typedef struct
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#define ast_aes_encrypt_key(key, context) AES_set_encrypt_key(key, 1024, context)
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{ aes_32t ks[KS_LENGTH];
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} aes_encrypt_ctx;
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#if defined(AES_128) || defined(AES_VAR)
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#define ast_aes_decrypt_key(key, context) AES_set_decrypt_key(key, 1024, context)
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aes_rval aes_encrypt_key128(const void *in_key, aes_encrypt_ctx cx[1]);
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#endif
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#if defined(AES_192) || defined(AES_VAR)
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#define ast_aes_encrypt(in, out, context) AES_encrypt(in, out, context)
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aes_rval aes_encrypt_key192(const void *in_key, aes_encrypt_ctx cx[1]);
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#endif
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#if defined(AES_256) || defined(AES_VAR)
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#define ast_aes_decrypt(in, out, context) AES_decrypt(in, out, context)
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aes_rval aes_encrypt_key256(const void *in_key, aes_encrypt_ctx cx[1]);
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#endif
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#if defined(AES_VAR)
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#else /* !HAVE_CRYPTO */
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aes_rval aes_encrypt_key(const void *in_key, int key_len, aes_encrypt_ctx cx[1]);
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#endif
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aes_rval aes_encrypt(const void *in_blk, void *out_blk, const aes_encrypt_ctx cx[1]);
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#endif
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#ifdef AES_DECRYPT
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/* Use the included AES implementation */
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typedef struct
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#include "aes_internal.h"
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{ aes_32t ks[KS_LENGTH];
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} aes_decrypt_ctx;
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#if defined(AES_128) || defined(AES_VAR)
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typedef aes_encrypt_ctx ast_aes_encrypt_key;
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aes_rval aes_decrypt_key128(const void *in_key, aes_decrypt_ctx cx[1]);
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typedef aes_decrypt_ctx ast_aes_decrypt_key;
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#endif
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#if defined(AES_192) || defined(AES_VAR)
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#define ast_aes_encrypt_key(key, context) aes_encrypt_key128(key, context)
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aes_rval aes_decrypt_key192(const void *in_key, aes_decrypt_ctx cx[1]);
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#endif
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#if defined(AES_256) || defined(AES_VAR)
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#define ast_aes_decrypt_key(key, context) aes_decrypt_key128(key, context)
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aes_rval aes_decrypt_key256(const void *in_key, aes_decrypt_ctx cx[1]);
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#endif
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#if defined(AES_VAR)
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#define ast_aes_encrypt(in, out, context) aes_encrypt(in, out, context)
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aes_rval aes_decrypt_key(const void *in_key, int key_len, aes_decrypt_ctx cx[1]);
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#endif
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aes_rval aes_decrypt(const void *in_blk, void *out_blk, const aes_decrypt_ctx cx[1]);
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#define ast_aes_decrypt(in, out, context) aes_decrypt(in, out, context)
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#endif
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#if defined(__cplusplus)
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#endif /* !HAVE_CRYPTO */
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}
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#endif
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#endif
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#endif /* _ASTERISK_AES_H */
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@ -0,0 +1,170 @@
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/*
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* Asterisk -- An open source telephony toolkit.
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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||||||
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* the project provides a web site, mailing lists and IRC
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||||||
|
* channels for your use.
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||||||
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*/
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/*
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---------------------------------------------------------------------------
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Copyright (c) 2003, Dr Brian Gladman <brg@gladman.me.uk>, Worcester, UK.
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All rights reserved.
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|
LICENSE TERMS
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||||||
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The free distribution and use of this software in both source and binary
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|
form is allowed (with or without changes) provided that:
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||||||
|
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|
1. distributions of this source code include the above copyright
|
||||||
|
notice, this list of conditions and the following disclaimer;
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||||||
|
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||||||
|
2. distributions in binary form include the above copyright
|
||||||
|
notice, this list of conditions and the following disclaimer
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||||||
|
in the documentation and/or other associated materials;
|
||||||
|
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||||||
|
3. the copyright holder's name is not used to endorse products
|
||||||
|
built using this software without specific written permission.
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||||||
|
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||||||
|
ALTERNATIVELY, provided that this notice is retained in full, this product
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||||||
|
may be distributed under the terms of the GNU General Public License (GPL),
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||||||
|
in which case the provisions of the GPL apply INSTEAD OF those given above.
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||||||
|
|
||||||
|
DISCLAIMER
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||||||
|
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||||||
|
This software is provided 'as is' with no explicit or implied warranties
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|
in respect of its properties, including, but not limited to, correctness
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|
and/or fitness for purpose.
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||||||
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---------------------------------------------------------------------------
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Issue Date: 26/08/2003
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*/
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/*!\file
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\brief This file contains the definitions required to use AES in C. See aesopt.h
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for optimisation details.
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*/
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#ifndef _AES_INTERNAL_H
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#define _AES_INTERNAL_H
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/* This include is used to find 8 & 32 bit unsigned integer types */
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#include "limits.h"
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#if defined(__cplusplus)
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extern "C"
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{
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#endif
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#define AES_128 /* define if AES with 128 bit keys is needed */
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#undef AES_192 /* define if AES with 192 bit keys is needed */
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#undef AES_256 /* define if AES with 256 bit keys is needed */
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#undef AES_VAR /* define if a variable key size is needed */
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/* The following must also be set in assembler files if being used */
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#define AES_ENCRYPT /* if support for encryption is needed */
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#define AES_DECRYPT /* if support for decryption is needed */
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#define AES_ERR_CHK /* for parameter checks & error return codes */
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#if UCHAR_MAX == 0xff /* an unsigned 8 bit type */
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typedef unsigned char aes_08t;
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#else
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#error Please define aes_08t as an 8-bit unsigned integer type in aes.h
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#endif
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#if UINT_MAX == 0xffffffff /* an unsigned 32 bit type */
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typedef unsigned int aes_32t;
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#elif ULONG_MAX == 0xffffffff
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typedef unsigned long aes_32t;
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#else
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#error Please define aes_32t as a 32-bit unsigned integer type in aes.h
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#endif
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#define AES_BLOCK_SIZE 16 /* the AES block size in bytes */
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#define N_COLS 4 /* the number of columns in the state */
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/* a maximum of 60 32-bit words are needed for the key schedule but */
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/* 64 are claimed to allow space at the top for a CBC xor buffer. */
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/* If this is not needed, this value can be reduced to 60. A value */
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/* of 64 may also help in maintaining alignment in some situations */
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#define KS_LENGTH 64
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#ifdef AES_ERR_CHK
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#define aes_ret int
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#define aes_good 0
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#define aes_error -1
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#else
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#define aes_ret void
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#endif
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#ifndef AES_DLL /* implement normal/DLL functions */
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#define aes_rval aes_ret
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#else
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#define aes_rval aes_ret __declspec(dllexport) _stdcall
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#endif
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/* This routine must be called before first use if non-static */
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/* tables are being used */
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void gen_tabs(void);
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/* The key length (klen) is input in bytes when it is in the range */
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/* 16 <= klen <= 32 or in bits when in the range 128 <= klen <= 256 */
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#ifdef AES_ENCRYPT
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typedef struct
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{ aes_32t ks[KS_LENGTH];
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} aes_encrypt_ctx;
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#if defined(AES_128) || defined(AES_VAR)
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aes_rval aes_encrypt_key128(const void *in_key, aes_encrypt_ctx cx[1]);
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#endif
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#if defined(AES_192) || defined(AES_VAR)
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aes_rval aes_encrypt_key192(const void *in_key, aes_encrypt_ctx cx[1]);
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#endif
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#if defined(AES_256) || defined(AES_VAR)
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aes_rval aes_encrypt_key256(const void *in_key, aes_encrypt_ctx cx[1]);
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#endif
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#if defined(AES_VAR)
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aes_rval aes_encrypt_key(const void *in_key, int key_len, aes_encrypt_ctx cx[1]);
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#endif
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aes_rval aes_encrypt(const void *in_blk, void *out_blk, const aes_encrypt_ctx cx[1]);
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#endif
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#ifdef AES_DECRYPT
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typedef struct
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{ aes_32t ks[KS_LENGTH];
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} aes_decrypt_ctx;
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#if defined(AES_128) || defined(AES_VAR)
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aes_rval aes_decrypt_key128(const void *in_key, aes_decrypt_ctx cx[1]);
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#endif
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#if defined(AES_192) || defined(AES_VAR)
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aes_rval aes_decrypt_key192(const void *in_key, aes_decrypt_ctx cx[1]);
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#endif
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#if defined(AES_256) || defined(AES_VAR)
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aes_rval aes_decrypt_key256(const void *in_key, aes_decrypt_ctx cx[1]);
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#endif
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#if defined(AES_VAR)
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aes_rval aes_decrypt_key(const void *in_key, int key_len, aes_decrypt_ctx cx[1]);
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#endif
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aes_rval aes_decrypt(const void *in_blk, void *out_blk, const aes_decrypt_ctx cx[1]);
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#endif
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#if defined(__cplusplus)
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}
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#endif
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||||||
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#endif
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Loading…
Reference in new issue