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aes_arm32.c
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/**
* aes_arm32.c
*
* Here we transform the rijndael C implementation
* (rijndael-alg-fst.c from Vincent Rijmen, Antoon Bosselaers
* and Paulo Barreto, under the Public Domain)
* into an AArch64 optimized version, taking advantage of the
* ARMv8 crypto extensions.
*
* (C) Kurt Garloff <[email protected]>, 8-9/2015
* License: GNU GPL v2 or v3 (at your option)
*/
#include "aes_c.h"
#include "aes_arm64.h"
#include "secmem.h"
#include "archdep.h"
#include <string.h>
#include <assert.h>
#if defined(__clang__)
# define FPU_NEON_AES " .fpu crypto-neon-fp-armv8 \n .arch armv8-a \n .arch_extension crypto \n"
#elif defined(__GNUC__) //&& !defined(__clang__)
# if __GNUC__ < 5
# define FPU_NEON_AES " .fpu crypto-neon-fp-armv8 \n"
# else
# define FPU_NEON_AES " .fpu crypto-neon-fp-armv8 \n .arch armv8-a \n .arch_extension crypto \n"
# endif
#else
# define FPU_NEON_AES " \n"
#endif
#define MAXKC (256 / 32)
#define MAXKB (256 / 8)
#define MAXNR 14
typedef unsigned char u8;
typedef unsigned short u16;
typedef unsigned int u32;
static int AES_ARM8_probe()
{
return !have_arm8crypto;
}
int AES_ARM8_KeySetupEnc(u32 rk[/*4*(Nr + 1)*/], const u8 cipherKey[], int keyBits, int rounds);
int AES_ARM8_KeySetupDec(u32 rk[/*4*(Nr + 1)*/], const u8 cipherKey[], int keyBits, int rounds);
void AES_ARM8_Encrypt(const u8 *rkeys/*[16*(Nr + 1)]*/, uint Nr, const u8 pt[16], u8 ct[16]);
void AES_ARM8_Decrypt(const u8 *rkeys/*[16*(Nr + 1)]*/, uint Nr, const u8 ct[16], u8 pt[16]);
/*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ''AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
static inline u32 ror32_8(u32 in)
{
asm volatile (
" ror %[out], %[in], #8 \n"
: [out] "=r"(in)
: [in] "0"(in)
);
return in;
}
static inline u32 aes_sbox(u32 in)
{
u32 ret;
asm volatile (
FPU_NEON_AES
" vdup.32 q1, %[in] \n"
" veor q0, q0, q0 \n"
" aese.8 q0, q1 \n"
" vmov %[out], s0 \n"
: [out] "=r"(ret)
: [in] "r"(in)
: "q0", "q1"
);
return ret;
}
int AES_ARM8_KeySetupEnc(u32 rk[/*4*(Nr + 1)*/], const u8 cipherKey[], int keyBits, int rounds)
{
static u8 const rcon[] = {
0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80,
0x1b, 0x36, 0x6c, 0xd8 };
const int keyln32 = keyBits/32;
int i;
memcpy(rk, cipherKey, keyBits/8);
if (!rounds) {
switch (keyBits) {
case 128:
rounds = 10; break;
case 192:
rounds = 12; break;
case 256:
rounds = 14; break;
default:
return 0;
}
}
for (i = 0; i < sizeof(rcon); ++i) {
const u32* rki = rk+i*keyln32;
u32* rko = rk+(i+1)*keyln32;
rko[0] = ror32_8(aes_sbox(rki[keyln32-1])) ^ rcon[i] ^ rki[0];
rko[1] = rko[0] ^ rki[1];
rko[2] = rko[1] ^ rki[2];
rko[3] = rko[2] ^ rki[3];
if (keyBits == 192) {
if (3*(i+1)/2 >= rounds)
return rounds;
rko[4] = rko[3] ^ rki[4];
rko[5] = rko[4] ^ rki[5];
} else if (keyBits == 256) {
if (2*i+2 >= rounds)
return rounds;
rko[4] = aes_sbox(rko[3]) ^ rki[4];
rko[5] = rko[4] ^ rki[5];
rko[6] = rko[5] ^ rki[6];
rko[7] = rko[6] ^ rki[7];
} else if (keyBits == 128) {
if (i+1 >= rounds)
return rounds;
}
}
return 0;
}
inline void AES_ARM8_EKey_DKey(const u32 *ekey, u32* dkey, int rounds)
{
asm volatile(
FPU_NEON_AES
" vld1.8 {q0}, [%1] \n"
" sub %1, %1, #16 \n"
" vst1.8 {q0}, [%0]! \n"
"1: \n"
" vld1.8 {q0}, [%1] \n"
" aesimc.8 q0, q0 \n"
" subs %2, %2, #1 \n"
" sub %1, %1, #16 \n"
" vst1.8 {q0}, [%0]! \n"
" bpl 1b \n"
" vld1.8 {q0}, [%1] \n"
" vst1.8 {q0}, [%0] \n"
: "=r"(dkey), "=r"(ekey), "=r"(rounds), "=m"(*(roundkey(*)[rounds+1])ekey)
: "0"(dkey), "1"(ekey+4*rounds), "2"(rounds-2), "m"(*(roundkey(*)[rounds+1])dkey)
: "q0");
}
/**
* Expand the cipher key into the decryption key schedule.
d *
* @return the number of rounds for the given cipher key size.
*/
int AES_ARM8_KeySetupDec(u32 rk[/*4*(Nr + 1)*/], const u8 cipherKey[], int keyBits, int rounds)
{
/* expand the cipher key: */
int Nr = AES_ARM8_KeySetupEnc(crypto->xkeys->data32, cipherKey, keyBits, rounds);
AES_ARM8_EKey_DKey(crypto->xkeys->data32, rk, Nr);
return Nr;
}
void AES_ARM8_Encrypt(const u8 *rkeys /*u32 rk[4*(Nr + 1)]*/, uint Nr, const u8 pt[16], u8 ct[16])
{
asm volatile(
FPU_NEON_AES
"// vld1.8 {q0}, [%[pt]]! \n"
" vld1.8 {q0}, [%[pt]] \n"
" vld1.8 {q1,q2}, [%[rk]]! \n"
"// veor q0, q0, q3 \n"
" subs %[nr], %[nr], #2 \n"
".align 4 \n"
"1: \n"
" aese.8 q0, q1 \n"
" aesmc.8 q0, q0 \n"
" vld1.8 {q1}, [%[rk]]! \n"
" beq 2f \n"
" subs %[nr], %[nr], #2 \n"
" aese.8 q0, q2 \n"
" aesmc.8 q0, q0 \n"
" vld1.8 {q2}, [%[rk]]! \n"
" bpl 1b \n"
" \n"
" aese.8 q0, q1 \n"
" veor q0, q0, q2 \n"
" b 3f \n"
"2: \n"
" aese.8 q0, q2 \n"
" veor q0, q0, q1 \n"
"3: \n"
"// vst1.8 {q0}, [%[ct]]! \n"
" vst1.8 {q0}, [%[ct]] \n"
: [rk] "=r" (rkeys), [nr] "=r" (Nr), "=m" (*ct)
: "0" (rkeys), "1" (Nr), [pt] "r" (pt), [ct] "r" (ct),
"m" (*(const char(*)[16*(Nr+1)])rkeys), "m" (*pt)
: "q0", "q1", "q2", "cc"
);
//printf("%i rounds left, %li rounds\n", Nr, (rkeys-rk)/16);
return;
}
void AES_ARM8_Decrypt(const u8 *rkeys /*u32 rk[4*(Nr + 1)]*/, uint Nr, const u8 ct[16], u8 pt[16])
{
asm volatile(
FPU_NEON_AES
"// vld1.8 {q0}, [%[ct]]! \n"
" vld1.8 {q0}, [%[ct]] \n"
" vld1.8 {q1,q2}, [%[rk]]! \n"
"// veor q0, q0, q1 \n"
" subs %[nr], %[nr], #2 \n"
".align 4 \n"
"1: \n"
" aesd.8 q0, q1 \n"
" aesimc.8 q0, q0 \n"
" vld1.8 {q1}, [%[rk]]! \n"
" beq 2f \n"
" subs %[nr], %[nr], #2 \n"
" aesd.8 q0, q2 \n"
" aesimc.8 q0, q0 \n"
" vld1.8 {q2}, [%[rk]]! \n"
" bpl 1b \n"
" \n"
" aesd.8 q0, q1 \n"
" veor q0, q0, q2 \n"
" b 3f \n"
"2: \n"
" aesd.8 q0, q2 \n"
" veor q0, q0, q1 \n"
"3: \n"
"// vst1.8 {q0}, [%[pt]]! \n"
" vst1.8 {q0}, [%[pt]] \n"
: [rk] "=r" (rkeys), [nr] "=r" (Nr), "=m" (*pt)
: "0" (rkeys), "1" (Nr), [ct] "r" (ct), [pt] "r" (pt),
"m" (*(const char(*)[16*(Nr+1)])rkeys), "m" (*ct)
: "q0", "q1", "q2", "cc"
);
//printf("%i rounds left, %li rounds\n", Nr, (rkeys-rk)/16);
return;
}
void AES_ARM8_Encrypt4(const u8 *rkeys /*u32 rk[4*(Nr + 1)]*/, uint Nr, const u8 pt[64], u8 ct[64])
{
//assert(pt != ct);
/* The compiler might prove that pt == ct and thus uses the same register for
* input / output. We thus copy ct into r7, so we don't increment the pointers
* twice. I believe this is a compiler bug, as we also used to output both pt and ct,
* and as we were using volatile, the compiler had to assume those were used and
* different from each other.
* constraints were :
* : [rk] "=r" (rkeys), [nr] "=r" (Nr), [pt] "=r" (pt), [ct] "=r" (ct), "=m" (*ct)
* : "0" (rkeys), "1" (Nr), "2" (pt), "3" (ct), ...
*/
asm volatile(
FPU_NEON_AES
" mov r7, %[ct] \n"
" vld1.8 {q2,q3}, [%[pt]]! \n"
" vld1.8 {q4,q5}, [%[pt]]! \n"
" vld1.8 {q0,q1}, [%[rk]]! \n"
"// prfm PLDL1STRM, [%[pt],#64] \n"
" subs %[nr], %[nr], #2 \n"
".align 4 \n"
"1: \n"
" aese.8 q2, q0 \n"
" aesmc.8 q2, q2 \n"
" aese.8 q3, q0 \n"
" aesmc.8 q3, q3 \n"
" aese.8 q4, q0 \n"
" aesmc.8 q4, q4 \n"
" aese.8 q5, q0 \n"
" aesmc.8 q5, q5 \n"
" vld1.8 {q0}, [%[rk]]! \n"
" beq 2f \n"
" subs %[nr], %[nr], #2 \n"
" aese.8 q2, q1 \n"
" aesmc.8 q2, q2 \n"
" aese.8 q3, q1 \n"
" aesmc.8 q3, q3 \n"
" aese.8 q4, q1 \n"
" aesmc.8 q4, q4 \n"
" aese.8 q5, q1 \n"
" aesmc.8 q5, q5 \n"
" vld1.8 {q1}, [%[rk]]! \n"
" bpl 1b \n"
" \n"
" aese.8 q2, q0 \n"
" veor q2, q2, q1 \n"
" aese.8 q3, q0 \n"
" veor q3, q3, q1 \n"
" aese.8 q4, q0 \n"
" veor q4, q4, q1 \n"
" aese.8 q5, q0 \n"
" veor q5, q5, q1 \n"
" b 3f \n"
"2: \n"
" aese.8 q2, q1 \n"
" veor q2, q2, q0 \n"
" aese.8 q3, q1 \n"
" veor q3, q3, q0 \n"
" aese.8 q4, q1 \n"
" veor q4, q4, q0 \n"
" aese.8 q5, q1 \n"
" veor q5, q5, q0 \n"
"3: \n"
" vst1.8 {q2,q3}, [r7]! \n"
" vst1.8 {q4,q5}, [r7]! \n"
: [rk] "=r" (rkeys), [nr] "=r" (Nr), [pt] "=r" (pt),
"=m" (*ct)
: "0" (rkeys), "1" (Nr), /*[pt]*/ "2" (pt), [ct] "r" (ct),
"m" (*(const char(*)[16*(Nr+1)])rkeys), "m" (*pt)
: "q0", "q1", "q2", "q3", "q4", "q5", "cc", "r7"
);
//printf("%i rounds left, %li rounds\n", Nr, (rkeys-rk)/16);
return;
}
void AES_ARM8_Decrypt4(const u8 *rkeys /*u32 rk[4*(Nr + 1)]*/, uint Nr, const u8 ct[64], u8 pt[64])
{
//assert(pt != ct);
asm volatile(
FPU_NEON_AES
" mov r7, %[pt] \n"
" vld1.8 {q2,q3}, [%[ct]]! \n"
" vld1.8 {q4,q5}, [%[ct]]! \n"
" vld1.8 {q0,q1}, [%[rk]]! \n"
"// prfm PLDL1STRM, [%[ct],#64] \n"
" subs %[nr], %[nr], #2 \n"
".align 4 \n"
"1: \n"
" aesd.8 q2, q0 \n"
" aesimc.8 q2, q2 \n"
" aesd.8 q3, q0 \n"
" aesimc.8 q3, q3 \n"
" aesd.8 q4, q0 \n"
" aesimc.8 q4, q4 \n"
" aesd.8 q5, q0 \n"
" aesimc.8 q5, q5 \n"
" vld1.8 {q0}, [%[rk]]! \n"
" beq 2f \n"
" subs %[nr], %[nr], #2 \n"
" aesd.8 q2, q1 \n"
" aesimc.8 q2, q2 \n"
" aesd.8 q3, q1 \n"
" aesimc.8 q3, q3 \n"
" aesd.8 q4, q1 \n"
" aesimc.8 q4, q4 \n"
" aesd.8 q5, q1 \n"
" aesimc.8 q5, q5 \n"
" vld1.8 {q1}, [%[rk]]! \n"
" bpl 1b \n"
" \n"
" aesd.8 q2, q0 \n"
" veor q2, q2, q1 \n"
" aesd.8 q3, q0 \n"
" veor q3, q3, q1 \n"
" aesd.8 q4, q0 \n"
" veor q4, q4, q1 \n"
" aesd.8 q5, q0 \n"
" veor q5, q5, q1 \n"
" b 3f \n"
"2: \n"
" aesd.8 q2, q1 \n"
" veor q2, q2, q0 \n"
" aesd.8 q3, q1 \n"
" veor q3, q3, q0 \n"
" aesd.8 q4, q1 \n"
" veor q4, q4, q0 \n"
" aesd.8 q5, q1 \n"
" veor q5, q5, q0 \n"
"3: \n"
" vst1.8 {q2,q3}, [r7]! \n"
" vst1.8 {q4,q5}, [r7]! \n"
: [rk] "=r" (rkeys), [nr] "=r" (Nr), [ct] "=r" (ct),
"=m" (*pt)
: "0" (rkeys), "1" (Nr), /*[ct]*/ "2" (ct), [pt] "r" (pt),
"m" (*(const char(*)[16*(Nr+1)])rkeys), "m" (*ct)
: "q0", "q1", "q2", "q3", "q4", "q5", "cc", "r7"
);
//printf("%i rounds left, %li rounds\n", Nr, (rkeys-rk)/16);
return;
}
static const unsigned long long inc1234[] = {0ULL, 1ULL, 0ULL, 2ULL, 0ULL, 3ULL, 0ULL, 4ULL};
static const unsigned long long inc1[] = {0ULL, 1ULL};
void AES_ARM8_Encrypt_CTR(const u8 *rkeys /*u32 rk[4*(Nr + 1)]*/, uint Nr, const u8 pt[16], u8 ct[16], u8 iv[16])
{
asm volatile(
FPU_NEON_AES
" vld1.64 {q2}, [%[iv]] \n"
" vld1.64 {q4}, %[inc] \n"
" mov r7, %[nr] \n"
" vrev64.8 q3, q2 \n"
" subs r7, r7, #2 \n"
" vadd.i64 q4, q3, q4 \n"
" vld1.8 {q0, q1}, [%[rk]]! \n"
" vrev64.8 q4, q4 \n"
"// vld1.8 {q3}, [%[pt]]! \n"
" vld1.8 {q3}, [%[pt]] \n"
" vst1.64 {q4}, [%[iv]] \n"
".align 4 \n"
"1: \n"
" aese.8 q2, q0 \n"
" aesmc.8 q2, q2 \n"
" vld1.8 {q0}, [%[rk]]! \n"
" beq 2f \n"
" subs r7, r7, #2 \n"
" aese.8 q2, q1 \n"
" aesmc.8 q2, q2 \n"
" vld1.8 {q1}, [%[rk]]! \n"
" bpl 1b \n"
" \n"
" aese.8 q2, q0 \n"
" veor q2, q2, q1 \n"
" b 3f \n"
"2: \n"
" aese.8 q2, q1 \n"
" veor q2, q2, q0 \n"
"3: \n"
" veor q3, q3, q2 \n"
"// vst1.8 {q3}, [%[ct]]! \n"
" vst1.8 {q3}, [%[ct]] \n"
: [rk] "=r" (rkeys),
"=m" (*ct), "=m" (*iv)
: "0" (rkeys), [nr] "r" (Nr), [pt] "r" (pt), [ct] "r" (ct),
[iv] "r" (iv), [inc] "Q" (inc1),
"m" (*(const char(*)[16*(Nr+1)])rkeys), "m" (*pt)
: "q0", "q1", "q2", "q3", "q4", "r7", "cc"
);
//printf("%i rounds left, %li rounds\n", Nr, (rkeys-rk)/16);
return;
}
void AES_ARM8_Encrypt4_CTR(const u8 *rkeys /*u32 rk[4*(Nr + 1)]*/, uint Nr, const u8 pt[64], u8 ct[64], u8 iv[16])
{
//assert(pt != ct);
asm volatile(
FPU_NEON_AES
" vld1.64 {q2}, [%[iv]] \n"
"// vld1.64 {q6,q7}, [%[inc]] \n"
"// vld1.64 {q8,q9}, [%[inc],#32] \n"
" vld1.64 {q6,q7}, [%[inc]]! \n"
" vld1.64 {q8,q9}, [%[inc]] \n"
" mov r7, %[nr] \n"
" vrev64.8 q5, q2 \n"
" vld1.8 {q0, q1}, [%[rk]]! \n"
" subs r7, r7, #2 \n"
" mov r8, %[ct] \n"
" //prfm PLDL1STRM, [%[pt]] \n"
" vadd.i64 q9, q5, q9 \n"
" vrev64.8 q9, q9 \n"
" vadd.i64 q3, q5, q6 \n"
" vrev64.8 q3, q3 \n"
" vadd.i64 q4, q5, q7 \n"
" vrev64.8 q4, q4 \n"
" vadd.i64 q5, q5, q8 \n"
" vrev64.8 q5, q5 \n"
" vst1.64 {q9}, [%[iv]] \n"
" vld1.8 {q6,q7}, [%[pt]]! \n"
" vld1.8 {q8,q9}, [%[pt]]! \n"
" //prfm PLDL1STRM, [%[pt],#64] \n"
".align 4 \n"
"1: \n"
" aese.8 q2, q0 \n"
" aesmc.8 q2, q2 \n"
" aese.8 q3, q0 \n"
" aesmc.8 q3, q3 \n"
" aese.8 q4, q0 \n"
" aesmc.8 q4, q4 \n"
" aese.8 q5, q0 \n"
" aesmc.8 q5, q5 \n"
" vld1.8 {q0}, [%[rk]]! \n"
" beq 2f \n"
" subs r7, r7, #2 \n"
" aese.8 q2, q1 \n"
" aesmc.8 q2, q2 \n"
" aese.8 q3, q1 \n"
" aesmc.8 q3, q3 \n"
" aese.8 q4, q1 \n"
" aesmc.8 q4, q4 \n"
" aese.8 q5, q1 \n"
" aesmc.8 q5, q5 \n"
" vld1.8 {q1}, [%[rk]]! \n"
" bpl 1b \n"
" \n"
" aese.8 q2, q0 \n"
" veor q2, q2, q1 \n"
" aese.8 q3, q0 \n"
" veor q3, q3, q1 \n"
" aese.8 q4, q0 \n"
" veor q4, q4, q1 \n"
" aese.8 q5, q0 \n"
" veor q5, q5, q1 \n"
" b 3f \n"
"2: \n"
" aese.8 q2, q1 \n"
" veor q2, q2, q0 \n"
" aese.8 q3, q1 \n"
" veor q3, q3, q0 \n"
" aese.8 q4, q1 \n"
" veor q4, q4, q0 \n"
" aese.8 q5, q1 \n"
" veor q5, q5, q0 \n"
"3: \n"
" veor q6, q6, q2 \n"
" veor q7, q7, q3 \n"
" veor q8, q8, q4 \n"
" veor q9, q9, q5 \n"
" vst1.8 {q6,q7}, [r8]! \n"
" vst1.8 {q8,q9}, [r8]! \n"
: [rk] "=r" (rkeys), [nr] "=r" (Nr), [pt] "=r" (pt),
"=m" (*ct), "=m" (*iv)
: "0" (rkeys), "1" (Nr), "2" (pt), [ct] "r" (ct), [iv] "r" (iv),
[inc] "r" (inc1234), "m" (*inc1234),
"m" (*(const char(*)[16*(Nr+1)])rkeys), "m" (*pt)
: "q0", "q1", "q2", "q3", "q4", "q5", "q6", "q7", "q8", "q9", "r7", "r8", "cc"
);
//printf("%i rounds left, %li rounds\n", Nr, (rkeys-rk)/16);
return;
}
void AES_ARM8_EncryptX2_CTR(const u8 *rkeys /*u32 rk[4*(Nr + 1)]*/, uint Nr, const u8 pt[16], u8 ct[16], u8 iv[16])
{
assert(Nr > 4 && !(Nr%2));
uint halfnr = Nr/2;
asm volatile(
FPU_NEON_AES
" vld1.64 {q2}, [%[iv]] \n"
" vld1.64 {q4}, %[inc] \n"
" vrev64.8 q3, q2 \n"
" vld1.8 {q0,q1}, [%[rk]]! \n"
" vadd.i64 q4, q3, q4 \n"
" subs %[nr], %[nr], #2 \n"
" vrev64.8 q4, q4 \n"
" mov r7, %[nr] \n"
"// vld1.8 {q3}, [%[pt]]! \n"
" vld1.8 {q3}, [%[pt]] \n"
" vst1.64 {q4}, [%[iv]] \n"
".align 4 \n"
"1: \n"
" aese.8 q2, q0 \n"
" aesmc.8 q2, q2 \n"
" vld1.8 {q0}, [%[rk]]! \n"
" beq 2f \n"
" subs %[nr], %[nr], #2 \n"
" aese.8 q2, q1 \n"
" aesmc.8 q2, q2 \n"
" vld1.8 {q1}, [%[rk]]! \n"
" bpl 1b \n"
" \n"
" aese.8 q2, q0 \n"
" veor q2, q2, q1 \n"
" b 3f \n"
"2: \n"
" aese.8 q2, q1 \n"
" veor q2, q2, q0 \n"
"3: \n"
" cmp r7, #0 \n"
" beq 4f \n"
" vld1.8 {q0, q1}, [%[rk]]! \n"
" mov %[nr], r7 \n"
" mov r7, #0 \n"
" b 1b \n"
"4: \n"
" veor q3, q3, q2 \n"
"// vst1.8 {q3}, [%[ct]]! \n"
" vst1.8 {q3}, [%[ct]] \n"
: [rk] "=r" (rkeys), [nr] "=r" (Nr),
"=m" (*ct), "=m" (*iv)
: "0" (rkeys), "1" (halfnr), [pt] "r" (pt), [ct] "r" (ct), [iv] "r" (iv), [inc] "Q" (inc1),
"m" (*(const char(*)[16*(Nr+1)])rkeys), "m" (*pt)
: "q0", "q1", "q2", "q3", "q4", "r7", "cc"
);
//printf("%i rounds left, %li rounds\n", Nr, (rkeys-rk)/16);
return;
}
void AES_ARM8_Encrypt4X2_CTR(const u8 *rkeys /*u32 rk[4*(Nr + 1)]*/, uint Nr, const u8 pt[64], u8 ct[64], u8 iv[16])
{
//assert(pt != ct);
assert(Nr > 4 && !(Nr%2));
uint halfnr = Nr/2;
asm volatile(
FPU_NEON_AES
" vld1.64 {q2}, [%[iv]] \n"
"// vld1.64 {q6,q7}, [%[inc]] \n"
"// vld1.64 {q8,q9}, [%[inc],#32] \n"
" vld1.64 {q6,q7}, [%[inc]]! \n"
" vld1.64 {q8,q9}, [%[inc]] \n"
" vrev64.8 q5, q2 \n"
" vld1.8 {q0,q1}, [%[rk]]! \n"
" mov r8, %[ct] \n"
" //prfm PLDL1STRM, [%[pt]] \n"
" subs %[nr], %[nr], #2 \n"
" vadd.i64 q9, q5, q9 \n"
" vrev64.8 q9, q9 \n"
" vadd.i64 q3, q5, q6 \n"
" vrev64.8 q3, q3 \n"
" vadd.i64 q4, q5, q7 \n"
" vrev64.8 q4, q4 \n"
" vadd.i64 q5, q5, q8 \n"
" vrev64.8 q5, q5 \n"
" mov r7, %[nr] \n"
" vst1.64 {q9}, [%[iv]] \n"
" vld1.8 {q6,q7}, [%[pt]]! \n"
" vld1.8 {q8,q9}, [%[pt]]! \n"
" //prfm PLDL1STRM, [%[pt],#64] \n"
".align 4 \n"
"1: \n"
" aese.8 q2, q0 \n"
" aesmc.8 q2, q2 \n"
" aese.8 q3, q0 \n"
" aesmc.8 q3, q3 \n"
" aese.8 q4, q0 \n"
" aesmc.8 q4, q4 \n"
" aese.8 q5, q0 \n"
" aesmc.8 q5, q5 \n"
" vld1.8 {q0}, [%[rk]]! \n"
" beq 2f \n"
" subs %[nr], %[nr], #2 \n"
" aese.8 q2, q1 \n"
" aesmc.8 q2, q2 \n"
" aese.8 q3, q1 \n"
" aesmc.8 q3, q3 \n"
" aese.8 q4, q1 \n"
" aesmc.8 q4, q4 \n"
" aese.8 q5, q1 \n"
" aesmc.8 q5, q5 \n"
" vld1.8 {q1}, [%[rk]]! \n"
" bpl 1b \n"
" \n"
" aese.8 q2, q0 \n"
" veor q2, q2, q1 \n"
" aese.8 q3, q0 \n"
" veor q3, q3, q1 \n"
" aese.8 q4, q0 \n"
" veor q4, q4, q1 \n"
" aese.8 q5, q0 \n"
" veor q5, q5, q1 \n"
" b 3f \n"
"2: \n"
" aese.8 q2, q1 \n"
" veor q2, q2, q0 \n"
" aese.8 q3, q1 \n"
" veor q3, q3, q0 \n"
" aese.8 q4, q1 \n"
" veor q4, q4, q0 \n"
" aese.8 q5, q1 \n"
" veor q5, q5, q0 \n"
"3: \n"
" cmp r7, #0 \n"
" beq 4f \n"
" vld1.8 {q0, q1}, [%[rk]]! \n"
" mov %[nr], r7 \n"
" mov r7, #0 \n"
" b 1b \n"
"4: \n"
" veor q6, q6, q2 \n"
" veor q7, q7, q3 \n"
" veor q8, q8, q4 \n"
" veor q9, q9, q5 \n"
" vst1.8 {q6,q7}, [r8]! \n"
" vst1.8 {q8,q9}, [r8]! \n"
: [rk] "=r" (rkeys), [nr] "=r" (Nr), [pt] "=r" (pt),
"=m" (*ct), "=m" (*iv)
: "0" (rkeys), "1" (halfnr), "2" (pt), [ct] "r" (ct),
[iv] "r" (iv), [inc] "r" (inc1234), "m" (*inc1234),
"m" (*(const char(*)[16*(Nr+1)])rkeys), "m" (*pt)
: "q0", "q1", "q2", "q3", "q4", "q5", "q6", "q7", "q8", "q9", "r7", "r8", "cc"
);
//printf("%i rounds left, %li rounds\n", Nr, (rkeys-rk)/16);
return;
}
#define DECL_KEYSETUP(MODE, BITS) \
void AES_ARM8_KeySetup_##BITS##_##MODE(const uchar *usrkey, uchar *rkeys, uint rounds) \
{ \
AES_ARM8_KeySetup##MODE((u32*)rkeys, usrkey, BITS, rounds); \
}
DECL_KEYSETUP(Enc, 128);
DECL_KEYSETUP(Dec, 128);
DECL_KEYSETUP(Enc, 192);
DECL_KEYSETUP(Dec, 192);
DECL_KEYSETUP(Enc, 256);
DECL_KEYSETUP(Dec, 256);
#define AES_ARM8_Encrypt_Blk AES_ARM8_Encrypt
#define AES_ARM8_Decrypt_Blk AES_ARM8_Decrypt
#define AES_ARM8_Encrypt_4Blk AES_ARM8_Encrypt4
#define AES_ARM8_Decrypt_4Blk AES_ARM8_Decrypt4
#define AES_ARM8_Encrypt_Blk_CTR AES_ARM8_Encrypt_CTR
#define AES_ARM8_Encrypt_4Blk_CTR AES_ARM8_Encrypt4_CTR
#define AES_ARM8_Encrypt_BlkX2_CTR AES_ARM8_EncryptX2_CTR
#define AES_ARM8_Encrypt_4BlkX2_CTR AES_ARM8_Encrypt4X2_CTR
#define CLR_NEON3 \
asm volatile( \
" veor q0,q0,q0 \n" \
" veor q1,q1,q1 \n" \
" veor q2,q2,q2 \n" \
::: "q0", "q1", "q2")
#define CLR_NEON6 \
asm volatile( \
" veor q0,q0,q0 \n" \
" veor q1,q1,q1 \n" \
" veor q2,q2,q2 \n" \
" veor q3,q3,q3 \n" \
" veor q4,q4,q4 \n" \
" veor q5,q5,q5 \n" \
::: "q0", "q1", "q2", "q3", "q4", "q5")
#define CLR_NEON10 \
asm volatile( \
" veor q0,q0,q0 \n" \
" veor q1,q1,q1 \n" \
" veor q2,q2,q2 \n" \
" veor q3,q3,q3 \n" \
" veor q4,q4,q4 \n" \
" veor q5,q5,q5 \n" \
" veor q6,q6,q6 \n" \
" veor q7,q7,q7 \n" \
" veor q8,q8,q8 \n" \
" veor q9,q9,q9 \n" \
::: "q0", "q1", "q2", "q3", "q4", "q5", "q6", "q7", "q8", "q9")
int AES_ARM8_ECB_Encrypt(const uchar* rkeys, uint rounds, uchar *iv, uint pad, const uchar *in, uchar *out, ssize_t len, ssize_t *olen)
{
int r = AES_Gen_ECB_Enc4(AES_ARM8_Encrypt_4Blk, AES_ARM8_Encrypt_Blk,
rkeys, rounds, pad, in, out, len, olen);
CLR_NEON6;
return r;
}
int AES_ARM8_ECB_Decrypt(const uchar* rkeys, uint rounds, uchar *iv, uint pad, const uchar *in, uchar *out, ssize_t len, ssize_t *olen)
{
int r = AES_Gen_ECB_Dec4(AES_ARM8_Decrypt_4Blk, AES_ARM8_Decrypt_Blk,
rkeys, rounds, pad, in, out, len, olen);
CLR_NEON6;
return r;
}
int AES_ARM8_CBC_Encrypt(const uchar* rkeys, uint rounds, uchar *iv, uint pad, const uchar *in, uchar *out, ssize_t len, ssize_t *olen)
{
int r = AES_Gen_CBC_Enc(AES_ARM8_Encrypt_Blk,
rkeys, rounds, iv, pad, in, out, len, olen);
CLR_NEON3;
return r;
}
int AES_ARM8_CBC_Decrypt(const uchar* rkeys, uint rounds, uchar *iv, uint pad, const uchar *in, uchar *out, ssize_t len, ssize_t *olen)
{
int r = AES_Gen_CBC_Dec4(AES_ARM8_Decrypt_4Blk, AES_ARM8_Decrypt_Blk,
rkeys, rounds, iv, pad, in, out, len, olen);
CLR_NEON6;
return r;
}
int AES_ARM8_CTR_Crypt(const uchar* rkeys, uint rounds, uchar *ctr, uint pad, const uchar *in, uchar *out, ssize_t len, ssize_t *olen)
{
*olen = len;
int r = AES_Gen_CTR_Crypt_Opt(AES_ARM8_Encrypt_4Blk_CTR, AES_ARM8_Encrypt_Blk_CTR,
rkeys, rounds, ctr, in, out, len);
CLR_NEON10;
return r;
}
/* Double de/encryption methods */
#include "sha256.h"
static inline
void AES_ARM8_KeySetupX2_Bits_Enc(const uchar *usrkey, uchar *rkeys, uint rounds, uint bits)
{
assert(0 == rounds%2);
assert(0 != rounds);
AES_ARM8_KeySetupEnc((u32*)rkeys, usrkey, bits, rounds/2);
/* Second half: Calc sha256 from usrkey and expand */
hash_t hv;
sha256_init(&hv);
sha256_calc(usrkey, bits/8, bits/8, &hv);
sha256_beout(crypto->userkey2, &hv);
sha256_init(&hv);
AES_ARM8_KeySetupEnc((u32*)(rkeys+16+8*rounds), crypto->userkey2, bits, rounds/2);
//memset(crypto->usrkey2, 0, 32);
asm("":::"memory");
}
static inline
void AES_ARM8_KeySetupX2_Bits_Dec(const uchar* usrkey, uchar *rkeys, uint rounds, uint bits)
{
assert(0 == rounds%2);
assert(0 != rounds);
AES_ARM8_KeySetupDec((u32*)rkeys, usrkey, bits, rounds/2);
/* Second half: Calc sha256 from usrkey and expand */
hash_t hv;
sha256_init(&hv);
sha256_calc(usrkey, bits/8, bits/8, &hv);
sha256_beout(crypto->userkey2, &hv);
sha256_init(&hv);
AES_ARM8_KeySetupDec((u32*)(rkeys+16+8*rounds), crypto->userkey2, bits, rounds/2);
//memset(crypto->userkey2, 0, 32);
asm("":::"memory");
}
#define DECL_KEYSETUP2(MODE, BITS) \
void AES_ARM8_KeySetupX2_##BITS##_##MODE(const uchar *usrkey, uchar *rkeys, uint rounds) \
{ \
AES_ARM8_KeySetupX2_Bits_##MODE(usrkey, rkeys, rounds, BITS); \
}
DECL_KEYSETUP2(Enc, 128);
DECL_KEYSETUP2(Dec, 128);
DECL_KEYSETUP2(Enc, 192);
DECL_KEYSETUP2(Dec, 192);
DECL_KEYSETUP2(Enc, 256);
DECL_KEYSETUP2(Dec, 256);
void AES_ARM8_Encrypt_BlkX2(const uchar* rkeys, uint rounds, const uchar in[16], uchar out[16])
{
AES_ARM8_Encrypt(rkeys, rounds/2, in, out);
AES_ARM8_Encrypt(rkeys+16+8*rounds, rounds/2, out, out);
}
void AES_ARM8_Decrypt_BlkX2(const uchar* rkeys, uint rounds, const uchar in[16], uchar out[16])
{
AES_ARM8_Decrypt(rkeys+16+8*rounds, rounds/2, in, out);
AES_ARM8_Decrypt(rkeys, rounds/2, out, out);
}
void AES_ARM8_Encrypt_4BlkX2(const uchar* rkeys, uint rounds, const uchar in[64], uchar out[64])
{
AES_ARM8_Encrypt4(rkeys, rounds/2, in, out);
AES_ARM8_Encrypt4(rkeys+16+8*rounds, rounds/2, out, out);
}
void AES_ARM8_Decrypt_4BlkX2(const uchar* rkeys, uint rounds, const uchar in[64], uchar out[64])
{
AES_ARM8_Decrypt4(rkeys+16+8*rounds, rounds/2, in, out);
AES_ARM8_Decrypt4(rkeys, rounds/2, out, out);
}
int AES_ARM8_ECB_EncryptX2(const uchar* rkeys, uint rounds, uchar *iv, uint pad,
const uchar *in, uchar *out, ssize_t len, ssize_t *olen)
{
int r = AES_Gen_ECB_Enc4(AES_ARM8_Encrypt_4BlkX2, AES_ARM8_Encrypt_BlkX2,
rkeys, rounds, pad, in, out, len, olen);
CLR_NEON6;
return r;
}
int AES_ARM8_ECB_DecryptX2(const uchar* rkeys, uint rounds, uchar *iv, uint pad,
const uchar *in, uchar *out, ssize_t len, ssize_t *olen)
{
int r = AES_Gen_ECB_Dec4(AES_ARM8_Decrypt_4BlkX2, AES_ARM8_Decrypt_BlkX2,
rkeys, rounds, pad, in, out, len, olen);
CLR_NEON6;
return r;
}
int AES_ARM8_CBC_EncryptX2(const uchar* rkeys, uint rounds, uchar *iv, uint pad,
const uchar *in, uchar *out, ssize_t len, ssize_t *olen)
{
int r = AES_Gen_CBC_Enc(AES_ARM8_Encrypt_BlkX2, rkeys, rounds, iv, pad, in, out, len, olen);
CLR_NEON3;
return r;
}
int AES_ARM8_CBC_DecryptX2(const uchar* rkeys, uint rounds, uchar *iv, uint pad,
const uchar *in, uchar *out, ssize_t len, ssize_t *olen)
{
int r = AES_Gen_CBC_Dec4(AES_ARM8_Decrypt_4BlkX2, AES_ARM8_Decrypt_BlkX2,
rkeys, rounds, iv, pad, in, out, len, olen);
CLR_NEON6;
return r;
}
int AES_ARM8_CTR_CryptX2(const uchar* rkeys, uint rounds, uchar *ctr, uint pad,
const uchar *in, uchar *out, ssize_t len, ssize_t *olen)
{
*olen = len;
int r = AES_Gen_CTR_Crypt_Opt(AES_ARM8_Encrypt_4BlkX2_CTR, AES_ARM8_Encrypt_BlkX2_CTR,
rkeys, rounds, ctr, in, out, len);
//return AES_Gen_CTR_Crypt(AES_ARM8_Encrypt_BlkX2, rkeys, rounds, ctr, in, out, len);
CLR_NEON10;
return r;
}
ciph_desc_t AES_ARM8_Methods[] = {
{"AES128-ECB" , 128, 10, 16, 11*16, &aes_stream_ecb,
AES_ARM8_KeySetup_128_Enc, AES_ARM8_KeySetup_128_Dec,
AES_ARM8_ECB_Encrypt, AES_ARM8_ECB_Decrypt, AES_Gen_Release,
AES_ARM8_probe},
{"AES128-CBC" , 128, 10, 16, 11*16, &aes_stream_cbc,
AES_ARM8_KeySetup_128_Enc, AES_ARM8_KeySetup_128_Dec,
AES_ARM8_CBC_Encrypt, AES_ARM8_CBC_Decrypt, AES_Gen_Release,
AES_ARM8_probe},
{"AES128-CTR" , 128, 10, 16, 11*16, &aes_stream_ctr,
AES_ARM8_KeySetup_128_Enc, AES_ARM8_KeySetup_128_Enc,
AES_ARM8_CTR_Crypt, AES_ARM8_CTR_Crypt, AES_Gen_Release,
AES_ARM8_probe},
{"AES192-ECB" , 192, 12, 16, 13*16, &aes_stream_ecb,
AES_ARM8_KeySetup_192_Enc, AES_ARM8_KeySetup_192_Dec,
AES_ARM8_ECB_Encrypt, AES_ARM8_ECB_Decrypt, AES_Gen_Release,
AES_ARM8_probe},
{"AES192-CBC" , 192, 12, 16, 13*16, &aes_stream_cbc,
AES_ARM8_KeySetup_192_Enc, AES_ARM8_KeySetup_192_Dec,
AES_ARM8_CBC_Encrypt, AES_ARM8_CBC_Decrypt, AES_Gen_Release,
AES_ARM8_probe},
{"AES192-CTR" , 192, 12, 16, 13*16, &aes_stream_ctr,
AES_ARM8_KeySetup_192_Enc, AES_ARM8_KeySetup_192_Enc,
AES_ARM8_CTR_Crypt, AES_ARM8_CTR_Crypt, AES_Gen_Release,
AES_ARM8_probe},
{"AES256-ECB" , 256, 14, 16, 15*16, &aes_stream_ecb,
AES_ARM8_KeySetup_256_Enc, AES_ARM8_KeySetup_256_Dec,
AES_ARM8_ECB_Encrypt, AES_ARM8_ECB_Decrypt, AES_Gen_Release,
AES_ARM8_probe},
{"AES256-CBC" , 256, 14, 16, 15*16, &aes_stream_cbc,
AES_ARM8_KeySetup_256_Enc, AES_ARM8_KeySetup_256_Dec,
AES_ARM8_CBC_Encrypt, AES_ARM8_CBC_Decrypt, AES_Gen_Release,
AES_ARM8_probe},
{"AES256-CTR" , 256, 14, 16, 15*16, &aes_stream_ctr,
AES_ARM8_KeySetup_256_Enc, AES_ARM8_KeySetup_256_Enc,
AES_ARM8_CTR_Crypt, AES_ARM8_CTR_Crypt, AES_Gen_Release,
AES_ARM8_probe},
{"AES128+-ECB" , 128, 12, 16, 13*16, &aes_stream_ecb,
AES_ARM8_KeySetup_128_Enc, AES_ARM8_KeySetup_128_Dec,
AES_ARM8_ECB_Encrypt, AES_ARM8_ECB_Decrypt, AES_Gen_Release,
AES_ARM8_probe},
{"AES128+-CBC" , 128, 12, 16, 13*16, &aes_stream_cbc,
AES_ARM8_KeySetup_128_Enc, AES_ARM8_KeySetup_128_Dec,
AES_ARM8_CBC_Encrypt, AES_ARM8_CBC_Decrypt, AES_Gen_Release,
AES_ARM8_probe},
{"AES128+-CTR" , 128, 12, 16, 13*16, &aes_stream_ctr,
AES_ARM8_KeySetup_128_Enc, AES_ARM8_KeySetup_128_Enc,
AES_ARM8_CTR_Crypt, AES_ARM8_CTR_Crypt, AES_Gen_Release,
AES_ARM8_probe},
{"AES192+-ECB" , 192, 15, 16, 16*16, &aes_stream_ecb,
AES_ARM8_KeySetup_192_Enc, AES_ARM8_KeySetup_192_Dec,
AES_ARM8_ECB_Encrypt, AES_ARM8_ECB_Decrypt, AES_Gen_Release,
AES_ARM8_probe},
{"AES192+-CBC" , 192, 15, 16, 16*16, &aes_stream_cbc,
AES_ARM8_KeySetup_192_Enc, AES_ARM8_KeySetup_192_Dec,
AES_ARM8_CBC_Encrypt, AES_ARM8_CBC_Decrypt, AES_Gen_Release,
AES_ARM8_probe},
{"AES192+-CTR" , 192, 15, 16, 16*16, &aes_stream_ctr,
AES_ARM8_KeySetup_192_Enc, AES_ARM8_KeySetup_192_Enc,
AES_ARM8_CTR_Crypt, AES_ARM8_CTR_Crypt, AES_Gen_Release,
AES_ARM8_probe},
{"AES256+-ECB" , 256, 18, 16, 19*16, &aes_stream_ecb,
AES_ARM8_KeySetup_256_Enc, AES_ARM8_KeySetup_256_Dec,
AES_ARM8_ECB_Encrypt, AES_ARM8_ECB_Decrypt, AES_Gen_Release,
AES_ARM8_probe},
{"AES256+-CBC" , 256, 18, 16, 19*16, &aes_stream_cbc,
AES_ARM8_KeySetup_256_Enc, AES_ARM8_KeySetup_256_Dec,
AES_ARM8_CBC_Encrypt, AES_ARM8_CBC_Decrypt, AES_Gen_Release,
AES_ARM8_probe},
{"AES256+-CTR" , 256, 18, 16, 19*16, &aes_stream_ctr,
AES_ARM8_KeySetup_256_Enc, AES_ARM8_KeySetup_256_Enc,
AES_ARM8_CTR_Crypt, AES_ARM8_CTR_Crypt, AES_Gen_Release,
AES_ARM8_probe},
{"AES128x2-ECB", 128, 20, 16, 22*16, &aes_stream_ecb,
AES_ARM8_KeySetupX2_128_Enc, AES_ARM8_KeySetupX2_128_Dec,
AES_ARM8_ECB_EncryptX2, AES_ARM8_ECB_DecryptX2, AES_Gen_Release,
AES_ARM8_probe},
{"AES128x2-CBC", 128, 20, 16, 22*16, &aes_stream_cbc,
AES_ARM8_KeySetupX2_128_Enc, AES_ARM8_KeySetupX2_128_Dec,
AES_ARM8_CBC_EncryptX2, AES_ARM8_CBC_DecryptX2, AES_Gen_Release,
AES_ARM8_probe},
{"AES128x2-CTR", 128, 20, 16, 22*16, &aes_stream_ctr,
AES_ARM8_KeySetupX2_128_Enc, AES_ARM8_KeySetupX2_128_Enc,
AES_ARM8_CTR_CryptX2, AES_ARM8_CTR_CryptX2, AES_Gen_Release,
AES_ARM8_probe},
{"AES192x2-ECB", 192, 24, 16, 26*16, &aes_stream_ecb,
AES_ARM8_KeySetupX2_192_Enc, AES_ARM8_KeySetupX2_192_Dec,
AES_ARM8_ECB_EncryptX2, AES_ARM8_ECB_DecryptX2, AES_Gen_Release,
AES_ARM8_probe},
{"AES192x2-CBC", 192, 24, 16, 26*16, &aes_stream_cbc,
AES_ARM8_KeySetupX2_192_Enc, AES_ARM8_KeySetupX2_192_Dec,
AES_ARM8_CBC_EncryptX2, AES_ARM8_CBC_DecryptX2, AES_Gen_Release,
AES_ARM8_probe},
{"AES192x2-CTR", 192, 24, 16, 26*16, &aes_stream_ctr,
AES_ARM8_KeySetupX2_192_Enc, AES_ARM8_KeySetupX2_192_Enc,
AES_ARM8_CTR_CryptX2, AES_ARM8_CTR_CryptX2, AES_Gen_Release,
AES_ARM8_probe},
{"AES256x2-ECB", 256, 28, 16, 30*16, &aes_stream_ecb,