aes/amd64/aesopt.h

7  * The free distribution and use of this software is allowed (with or without
11  *	list of conditions and the following disclaimer;
14  *	of conditions and the following disclaimer in their documentation;
23  * and/or fitness for purpose.
27  * This file contains the compilation options for AES (Rijndael) and code
28  * that is common across encryption, key scheduling and table generation.
33  * Joan Daemen and Vincent Rijmen. This version is designed for the standard
34  * block size of 16 bytes and for key sizes of 128, 192 and 256 bits (16, 24
35  * and 32 bytes).
37  * This version is designed for flexibility and speed using operations on
50  * 1. Added __cplusplus and _AESTAB_H header guards
51  * 2. Added header files sys/types.h and aes_impl.h
52  * 3. Added defines for AES_ENCRYPT, AES_DECRYPT, AES_REV_DKS, and ASM_AMD64_C
55  * 5. Undefined VIA_ACE_POSSIBLE and ASSUME_VIA_ACE_PRESENT
56  * 6. Changed uint_8t and uint_32t to uint8_t and uint32_t
58  * 8. Cstyled and hdrchk code
111  *	input, output and key input are all enumerated arrays of bytes in which
112  *	bytes are numbered starting at zero and increasing to one less than the
114  *	for naming bytes and does not imply any adjacency or order relationship
115  *	from one byte to another. When these inputs and outputs are considered
127  *	in words have the highest numeric significance and little-endian if the
160  *  inline assembler instructions and is only implemented for the Microsoft,
161  *  Intel and GCC compilers.  If VIA ACE is known to be present, then defining
164  *  it is detected (both present and enabled) but the normal AES code will
191  *	assembler code routines for encryption, decryption and key scheduling
195  *		encryption and decryption and but with key scheduling in C
197  *		encryption, decryption and key scheduling
199  *		encryption and decryption and but with key scheduling in C
201  *		encryption and decryption and but with key scheduling in C
220 #error Assembler code is only available for x86 and AMD64 systems
227  *	bytes in the input and output arrays to and from the internal 32-bit
235  *	(especially so if care is taken to align the input  and output byte
247  *	The code for encryption and decryption cycles through a number of rounds
254  *	to be set independently for encryption and decryption
357  *	how much speed is required. Encryption and decryption round functions
358  *	are different and the last encryption and decryption round functions are
362  *	1. Normal encryption and decryption rounds can each use either 0, 1
363  *		or 4 tables and table spaces of 0, 1024 or 4096 bytes each.
364  *	2. The last encryption and decryption rounds can also use either 0, 1
365  *		or 4 tables and table spaces of 0, 1024 or 4096 bytes each.
418 /* VIA ACE support is only available for VC++ and GCC */
449  *	processor registers. The following define maps a variable name x and
465  *	and for setting the three key lengths (separately) for encryption
466  *	and decryption. Since not all functions are needed, masks are set
544  *		unsigned variables and with shift counts that are compile
585 /* the finite field modular polynomial and elements */
719  * Perform forward and inverse column mix operation on four bytes in long word