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| -rw-r--r-- | src/tpm2/crypto/CryptSym.h | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/src/tpm2/crypto/CryptSym.h b/src/tpm2/crypto/CryptSym.h new file mode 100644 index 0000000..66cfb97 --- /dev/null +++ b/src/tpm2/crypto/CryptSym.h @@ -0,0 +1,142 @@ +/********************************************************************************/ +/* */ +/* Implementation of the symmetric block cipher modes */ +/* Written by Ken Goldman */ +/* IBM Thomas J. Watson Research Center */ +/* $Id: CryptSym.h 1658 2021-01-22 23:14:01Z kgoldman $ */ +/* */ +/* Licenses and Notices */ +/* */ +/* 1. Copyright Licenses: */ +/* */ +/* - Trusted Computing Group (TCG) grants to the user of the source code in */ +/* this specification (the "Source Code") a worldwide, irrevocable, */ +/* nonexclusive, royalty free, copyright license to reproduce, create */ +/* derivative works, distribute, display and perform the Source Code and */ +/* derivative works thereof, and to grant others the rights granted herein. */ +/* */ +/* - The TCG grants to the user of the other parts of the specification */ +/* (other than the Source Code) the rights to reproduce, distribute, */ +/* display, and perform the specification solely for the purpose of */ +/* developing products based on such documents. */ +/* */ +/* 2. Source Code Distribution Conditions: */ +/* */ +/* - Redistributions of Source Code must retain the above copyright licenses, */ +/* this list of conditions and the following disclaimers. */ +/* */ +/* - Redistributions in binary form must reproduce the above copyright */ +/* licenses, this list of conditions and the following disclaimers in the */ +/* documentation and/or other materials provided with the distribution. */ +/* */ +/* 3. Disclaimers: */ +/* */ +/* - THE COPYRIGHT LICENSES SET FORTH ABOVE DO NOT REPRESENT ANY FORM OF */ +/* LICENSE OR WAIVER, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, WITH */ +/* RESPECT TO PATENT RIGHTS HELD BY TCG MEMBERS (OR OTHER THIRD PARTIES) */ +/* THAT MAY BE NECESSARY TO IMPLEMENT THIS SPECIFICATION OR OTHERWISE. */ +/* Contact TCG Administration (admin@trustedcomputinggroup.org) for */ +/* information on specification licensing rights available through TCG */ +/* membership agreements. */ +/* */ +/* - THIS SPECIFICATION IS PROVIDED "AS IS" WITH NO EXPRESS OR IMPLIED */ +/* WARRANTIES WHATSOEVER, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR */ +/* FITNESS FOR A PARTICULAR PURPOSE, ACCURACY, COMPLETENESS, OR */ +/* NONINFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS, OR ANY WARRANTY */ +/* OTHERWISE ARISING OUT OF ANY PROPOSAL, SPECIFICATION OR SAMPLE. */ +/* */ +/* - Without limitation, TCG and its members and licensors disclaim all */ +/* liability, including liability for infringement of any proprietary */ +/* rights, relating to use of information in this specification and to the */ +/* implementation of this specification, and TCG disclaims all liability for */ +/* cost of procurement of substitute goods or services, lost profits, loss */ +/* of use, loss of data or any incidental, consequential, direct, indirect, */ +/* or special damages, whether under contract, tort, warranty or otherwise, */ +/* arising in any way out of use or reliance upon this specification or any */ +/* information herein. */ +/* */ +/* (c) Copyright IBM Corp. and others, 2017 - 2021 */ +/* */ +/********************************************************************************/ + + +#ifndef CRYPTSYM_H +#define CRYPTSYM_H + +#if ALG_AES +# define IF_IMPLEMENTED_AES(op) op(AES, aes) +#else +# define IF_IMPLEMENTED_AES(op) +#endif +#if ALG_SM4 +# define IF_IMPLEMENTED_SM4(op) op(SM4, sm4) +#else +# define IF_IMPLEMENTED_SM4(op) +#endif +#if ALG_CAMELLIA +# define IF_IMPLEMENTED_CAMELLIA(op) op(CAMELLIA, camellia) +#else +# define IF_IMPLEMENTED_CAMELLIA(op) +#endif +#if ALG_TDES +# define IF_IMPLEMENTED_TDES(op) op(TDES, tdes) +#else +# define IF_IMPLEMENTED_TDES(op) +#endif + +#define FOR_EACH_SYM(op) \ + IF_IMPLEMENTED_AES(op) \ + IF_IMPLEMENTED_SM4(op) \ + IF_IMPLEMENTED_CAMELLIA(op) \ + IF_IMPLEMENTED_TDES(op) + + /* libtpms added begin */ +#define FOR_EACH_SYM_WITHOUT_TDES(op) \ + IF_IMPLEMENTED_AES(op) \ + IF_IMPLEMENTED_SM4(op) \ + IF_IMPLEMENTED_CAMELLIA(op) /* libtpms added end */ + +/* Macros for creating the key schedule union */ + +#define KEY_SCHEDULE(SYM, sym) tpmKeySchedule##SYM sym; +//#define TDES DES[3] /* libtpms commented */ +typedef union tpmCryptKeySchedule_t { + FOR_EACH_SYM_WITHOUT_TDES(KEY_SCHEDULE) /* libtpms changed from FOR_EACH_SYM */ + tpmKeyScheduleTDES tdes[3]; /* libtpms added */ + +#if SYMMETRIC_ALIGNMENT == 8 + uint64_t alignment; +#else + uint32_t alignment; +#endif +} tpmCryptKeySchedule_t; + +/* Each block cipher within a library is expected to conform to the same calling conventions with + three parameters (keySchedule, in, and out) in the same order. That means that all algorithms + would use the same order of the same parameters. The code is written assuming the (keySchedule, + in, and out) order. However, if the library uses a different order, the order can be changed with + a SWIZZLE macro that puts the parameters in the correct order. Note that all algorithms have to + use the same order and number of parameters because the code to build the calling list is common + for each call to encrypt or decrypt with the algorithm chosen by setting a function pointer to + select the algorithm that is used. */ +# define ENCRYPT(keySchedule, in, out) \ + encrypt(SWIZZLE(keySchedule, in, out)) +# define DECRYPT(keySchedule, in, out) \ + decrypt(SWIZZLE(keySchedule, in, out)) + +/* Note that the macros rely on encrypt as local values in the functions that use these + macros. Those parameters are set by the macro that set the key schedule to be used for the + call. */ + +#define ENCRYPT_CASE(ALG, alg) \ + case TPM_ALG_##ALG: \ + TpmCryptSetEncryptKey##ALG(key, keySizeInBits, &keySchedule.alg); \ + encrypt = (TpmCryptSetSymKeyCall_t)TpmCryptEncrypt##ALG; \ + break; +#define DECRYPT_CASE(ALG, alg) \ + case TPM_ALG_##ALG: \ + TpmCryptSetDecryptKey##ALG(key, keySizeInBits, &keySchedule.alg); \ + decrypt = (TpmCryptSetSymKeyCall_t)TpmCryptDecrypt##ALG; \ + break; + +#endif |