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Dash Core Source Documentation (0.16.0.1)

Find detailed information regarding the Dash Core source code.

#include "ctaes.h"

Include dependency graph for ctaes.c:

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Macros
#define	BIT_RANGE(from, to) (((1 << ((to) - (from))) - 1) << (from))

#define	BIT_RANGE_LEFT(x, from, to, shift) (((x) & BIT_RANGE((from), (to))) << (shift))

#define	BIT_RANGE_RIGHT(x, from, to, shift) (((x) & BIT_RANGE((from), (to))) >> (shift))

#define	ROT(x, b) (((x) >> ((b) * 4)) \| ((x) << ((4-(b)) * 4)))

Functions
static void	LoadByte (AES_state *s, unsigned char byte, int r, int c)
	Convert a byte to sliced form, storing it corresponding to given row and column in s. More...

static void	LoadBytes (AES_state s, const unsigned char data16)
	Load 16 bytes of data into 8 sliced integers. More...

static void	SaveBytes (unsigned char data16, const AES_state s)
	Convert 8 sliced integers into 16 bytes of data. More...

static void	SubBytes (AES_state *s, int inv)

static void	ShiftRows (AES_state *s)

static void	InvShiftRows (AES_state *s)

static void	MixColumns (AES_state *s, int inv)

static void	AddRoundKey (AES_state s, const AES_state round)

static void	GetOneColumn (AES_state s, const AES_state a, int c)
	column_0(s) = column_c(a) More...

static void	KeySetupColumnMix (AES_state s, AES_state r, const AES_state *a, int c1, int c2)
	column_c1(r) \|= (column_0(s) ^= column_c2(a)) More...

static void	KeySetupTransform (AES_state s, const AES_state r)
	Rotate the rows in s one position upwards, and xor in r. More...

static void	MultX (AES_state *s)

static void	AES_setup (AES_state rounds, const uint8_t key, int nkeywords, int nrounds)
	Expand the cipher key into the key schedule. More...

static void	AES_encrypt (const AES_state rounds, int nrounds, unsigned char cipher16, const unsigned char *plain16)

static void	AES_decrypt (const AES_state rounds, int nrounds, unsigned char plain16, const unsigned char *cipher16)

void	AES128_init (AES128_ctx ctx, const unsigned char key16)

void	AES128_encrypt (const AES128_ctx ctx, size_t blocks, unsigned char cipher16, const unsigned char *plain16)

void	AES128_decrypt (const AES128_ctx ctx, size_t blocks, unsigned char plain16, const unsigned char *cipher16)

void	AES192_init (AES192_ctx ctx, const unsigned char key24)

void	AES192_encrypt (const AES192_ctx ctx, size_t blocks, unsigned char cipher16, const unsigned char *plain16)

void	AES192_decrypt (const AES192_ctx ctx, size_t blocks, unsigned char plain16, const unsigned char *cipher16)

void	AES256_init (AES256_ctx ctx, const unsigned char key32)

void	AES256_encrypt (const AES256_ctx ctx, size_t blocks, unsigned char cipher16, const unsigned char *plain16)

void	AES256_decrypt (const AES256_ctx ctx, size_t blocks, unsigned char plain16, const unsigned char *cipher16)

Macro Definition Documentation

◆ BIT_RANGE

#define BIT_RANGE	(		from,
			to
	)		(((1 << ((to) - (from))) - 1) << (from))

Definition at line 258 of file ctaes.c.

Referenced by InvShiftRows(), and ShiftRows().

◆ BIT_RANGE_LEFT

#define BIT_RANGE_LEFT	(		x,
			from,
			to,
			shift
	)		(((x) & BIT_RANGE((from), (to))) << (shift))

Definition at line 260 of file ctaes.c.

Referenced by InvShiftRows(), and ShiftRows().

◆ BIT_RANGE_RIGHT

#define BIT_RANGE_RIGHT	(		x,
			from,
			to,
			shift
	)		(((x) & BIT_RANGE((from), (to))) >> (shift))

Definition at line 261 of file ctaes.c.

Referenced by InvShiftRows(), and ShiftRows().

◆ ROT

#define ROT	(		x,
			b
	)		(((x) >> ((b) * 4)) \| ((x) << ((4-(b)) * 4)))

Definition at line 287 of file ctaes.c.

Referenced by MixColumns().

Function Documentation

◆ AddRoundKey()

static void AddRoundKey	(	AES_state *	s,
		const AES_state *	round
	)

static

Definition at line 354 of file ctaes.c.

References AES_state::slice.

Referenced by AES_decrypt(), and AES_encrypt().

◆ AES128_decrypt()

void AES128_decrypt	(	const AES128_ctx *	ctx,
		size_t	blocks,
		unsigned char *	plain16,
		const unsigned char *	cipher16
	)

Definition at line 509 of file ctaes.c.

References AES_decrypt(), and ctx.

Referenced by bench_AES128_decrypt(), AES128Decrypt::Decrypt(), and main().

◆ AES128_encrypt()

void AES128_encrypt	(	const AES128_ctx *	ctx,
		size_t	blocks,
		unsigned char *	cipher16,
		const unsigned char *	plain16
	)

Definition at line 501 of file ctaes.c.

References AES_encrypt(), and ctx.

Referenced by bench_AES128_encrypt(), AES128Encrypt::Encrypt(), and main().

◆ AES128_init()

void AES128_init	(	AES128_ctx *	ctx,
		const unsigned char *	key16
	)

Definition at line 497 of file ctaes.c.

References AES_setup(), and ctx.

Referenced by AES128Decrypt::AES128Decrypt(), AES128Encrypt::AES128Encrypt(), bench_AES128_encrypt_setup(), bench_AES128_init(), and main().

◆ AES192_decrypt()

void AES192_decrypt	(	const AES192_ctx *	ctx,
		size_t	blocks,
		unsigned char *	plain16,
		const unsigned char *	cipher16
	)

Definition at line 530 of file ctaes.c.

References AES_decrypt(), and ctx.

Referenced by bench_AES192_decrypt(), and main().

◆ AES192_encrypt()

void AES192_encrypt	(	const AES192_ctx *	ctx,
		size_t	blocks,
		unsigned char *	cipher16,
		const unsigned char *	plain16
	)

Definition at line 521 of file ctaes.c.

References AES_encrypt(), and ctx.

Referenced by bench_AES192_encrypt(), and main().

◆ AES192_init()

void AES192_init	(	AES192_ctx *	ctx,
		const unsigned char *	key24
	)

Definition at line 517 of file ctaes.c.

References AES_setup(), and ctx.

Referenced by bench_AES192_encrypt_setup(), bench_AES192_init(), and main().

◆ AES256_decrypt()

void AES256_decrypt	(	const AES256_ctx *	ctx,
		size_t	blocks,
		unsigned char *	plain16,
		const unsigned char *	cipher16
	)

Definition at line 550 of file ctaes.c.

References AES_decrypt(), and ctx.

Referenced by bench_AES256_decrypt(), AES256Decrypt::Decrypt(), and main().

◆ AES256_encrypt()

void AES256_encrypt	(	const AES256_ctx *	ctx,
		size_t	blocks,
		unsigned char *	cipher16,
		const unsigned char *	plain16
	)

Definition at line 542 of file ctaes.c.

References AES_encrypt(), and ctx.

Referenced by bench_AES256_encrypt(), AES256Encrypt::Encrypt(), and main().

◆ AES256_init()

void AES256_init	(	AES256_ctx *	ctx,
		const unsigned char *	key32
	)

Definition at line 538 of file ctaes.c.

References AES_setup(), and ctx.

Referenced by AES256Decrypt::AES256Decrypt(), AES256Encrypt::AES256Encrypt(), bench_AES256_encrypt_setup(), bench_AES256_init(), and main().

◆ AES_decrypt()

static void AES_decrypt	(	const AES_state *	rounds,
		int	nrounds,
		unsigned char *	plain16,
		const unsigned char *	cipher16
	)

static

Definition at line 470 of file ctaes.c.

References AddRoundKey(), InvShiftRows(), LoadBytes(), MixColumns(), SaveBytes(), and SubBytes().

Referenced by AES128_decrypt(), AES192_decrypt(), and AES256_decrypt().

◆ AES_encrypt()

static void AES_encrypt	(	const AES_state *	rounds,
		int	nrounds,
		unsigned char *	cipher16,
		const unsigned char *	plain16
	)

static

Definition at line 449 of file ctaes.c.

References AddRoundKey(), LoadBytes(), MixColumns(), SaveBytes(), ShiftRows(), and SubBytes().

Referenced by AES128_encrypt(), AES192_encrypt(), and AES256_encrypt().

◆ AES_setup()

static void AES_setup	(	AES_state *	rounds,
		const uint8_t *	key,
		int	nkeywords,
		int	nrounds
	)

static

Expand the cipher key into the key schedule.

state must be a pointer to an array of size nrounds + 1. key must be a pointer to 4 * nkeywords bytes.

AES128 uses nkeywords = 4, nrounds = 10 AES192 uses nkeywords = 6, nrounds = 12 AES256 uses nkeywords = 8, nrounds = 14

Definition at line 407 of file ctaes.c.

References GetOneColumn(), KeySetupColumnMix(), KeySetupTransform(), LoadByte(), MultX(), AES_state::slice, and SubBytes().

Referenced by AES128_init(), AES192_init(), and AES256_init().

◆ GetOneColumn()

static void GetOneColumn	(	AES_state *	s,
		const AES_state *	a,
		int	c
	)

static

column_0(s) = column_c(a)

Definition at line 362 of file ctaes.c.

References AES_state::slice.

Referenced by AES_setup().

◆ InvShiftRows()

static void InvShiftRows ( AES_state * s )

static

Definition at line 275 of file ctaes.c.

References BIT_RANGE, BIT_RANGE_LEFT, BIT_RANGE_RIGHT, and AES_state::slice.

Referenced by AES_decrypt().

◆ KeySetupColumnMix()

static void KeySetupColumnMix	(	AES_state *	s,
		AES_state *	r,
		const AES_state *	a,
		int	c1,
		int	c2
	)

static

column_c1(r) |= (column_0(s) ^= column_c2(a))

Definition at line 370 of file ctaes.c.

References AES_state::slice.

Referenced by AES_setup().

◆ KeySetupTransform()

static void KeySetupTransform	(	AES_state *	s,
		const AES_state *	r
	)

static

Rotate the rows in s one position upwards, and xor in r.

Definition at line 378 of file ctaes.c.

References AES_state::slice.

Referenced by AES_setup().

◆ LoadByte()

static void LoadByte	(	AES_state *	s,
		unsigned char	byte,
		int	r,
		int	c
	)

static

Convert a byte to sliced form, storing it corresponding to given row and column in s.

Definition at line 25 of file ctaes.c.

References AES_state::slice.

Referenced by AES_setup(), and LoadBytes().

◆ LoadBytes()

static void LoadBytes	(	AES_state *	s,
		const unsigned char *	data16
	)

static

Load 16 bytes of data into 8 sliced integers.

Definition at line 34 of file ctaes.c.

References LoadByte().

Referenced by AES_decrypt(), and AES_encrypt().

◆ MixColumns()

static void MixColumns	(	AES_state *	s,
		int	inv
	)

static

Definition at line 289 of file ctaes.c.

References ROT, and AES_state::slice.

Referenced by AES_decrypt(), and AES_encrypt().

◆ MultX()

static void MultX ( AES_state * s )

static

Definition at line 386 of file ctaes.c.

References AES_state::slice.

Referenced by AES_setup().

◆ SaveBytes()

static void SaveBytes	(	unsigned char *	data16,
		const AES_state *	s
	)

static

Convert 8 sliced integers into 16 bytes of data.

Definition at line 45 of file ctaes.c.

References AES_state::slice.

Referenced by AES_decrypt(), and AES_encrypt().

◆ ShiftRows()

static void ShiftRows ( AES_state * s )

static

Definition at line 263 of file ctaes.c.

References BIT_RANGE, BIT_RANGE_LEFT, BIT_RANGE_RIGHT, and AES_state::slice.

Referenced by AES_encrypt().

◆ SubBytes()

static void SubBytes	(	AES_state *	s,
		int	inv
	)

static

Definition at line 64 of file ctaes.c.

References P0, P1, P10, P11, P12, P13, P14, P15, P16, P17, P18, P19, P2, P20, P22, P23, P3, P4, P5, P6, P7, P8, P9, and AES_state::slice.

Referenced by AES_decrypt(), AES_encrypt(), and AES_setup().

src
crypto
ctaes
ctaes.c
Generated on Mon Nov 2 2020 19:11:16 for Dash Core by 1.8.14

Released under the MIT license