generic-library/openssl
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

AES IGE mode speedup.

Browse Source
This commit is contained in:
Ben Laurie 2007-05-13 12:57:59 +00:00
parent 76b46e7707
commit 5f09d0ecc2
4 changed files with 135 additions and 34 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
CHANGES
View File

@ -501,6 +501,9 @@
Changes between 0.9.8e and 0.9.8f [xx XXX xxxx]
*) AES IGE mode speedup.
[Dean Gaudet (Google)]
*) Add the Korean symmetric 128-bit cipher SEED (see
http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
add SEED ciphersuites from RFC 4162:

64
apps/speed.c
View File

@ -204,7 +204,7 @@ static void print_result(int alg,int run_no,int count,double time_used);
static int do_multi(int multi);
#endif
#define ALGOR_NUM 26
#define ALGOR_NUM 29
#define SIZE_NUM 5
#define RSA_NUM 4
#define DSA_NUM 3
@ -218,7 +218,8 @@ static const char *names[ALGOR_NUM]={
"rc2 cbc","rc5-32/12 cbc","blowfish cbc","cast cbc",
"aes-128 cbc","aes-192 cbc","aes-256 cbc",
"camellia-128 cbc","camellia-192 cbc","camellia-256 cbc",
"evp","sha256","sha512","whirlpool"};
"evp","sha256","sha512","whirlpool",
"aes-128 ige","aes-192 ige","aes-256 ige"};
static double results[ALGOR_NUM][SIZE_NUM];
static int lengths[SIZE_NUM]={16,64,256,1024,8*1024};
static double rsa_results[RSA_NUM][2];
@ -455,6 +456,9 @@ int MAIN(int argc, char **argv)
#define D_SHA256 23
#define D_SHA512 24
#define D_WHIRLPOOL 25
#define D_IGE_128_AES 26
#define D_IGE_192_AES 27
#define D_IGE_256_AES 28
double d=0.0;
long c[ALGOR_NUM][SIZE_NUM];
#define R_DSA_512 0
@ -799,7 +803,10 @@ int MAIN(int argc, char **argv)
if (strcmp(*argv,"aes-128-cbc") == 0) doit[D_CBC_128_AES]=1;
else if (strcmp(*argv,"aes-192-cbc") == 0) doit[D_CBC_192_AES]=1;
else if (strcmp(*argv,"aes-256-cbc") == 0) doit[D_CBC_256_AES]=1;
else
else if (strcmp(*argv,"aes-128-ige") == 0) doit[D_IGE_128_AES]=1;
else if (strcmp(*argv,"aes-192-ige") == 0) doit[D_IGE_192_AES]=1;
else if (strcmp(*argv,"aes-256-ige") == 0) doit[D_IGE_256_AES]=1;
else
#endif
#ifndef OPENSSL_NO_CAMELLIA
if (strcmp(*argv,"camellia-128-cbc") == 0) doit[D_CBC_128_CML]=1;
@ -1023,6 +1030,7 @@ int MAIN(int argc, char **argv)
#endif
#ifndef OPENSSL_NO_AES
BIO_printf(bio_err,"aes-128-cbc aes-192-cbc aes-256-cbc ");
BIO_printf(bio_err,"aes-128-ige aes-192-ige aes-256-ige ");
#endif
#ifndef OPENSSL_NO_CAMELLIA
BIO_printf(bio_err,"\n");
@ -1237,6 +1245,9 @@ int MAIN(int argc, char **argv)
c[D_SHA256][0]=count;
c[D_SHA512][0]=count;
c[D_WHIRLPOOL][0]=count;
c[D_IGE_128_AES][0]=count;
c[D_IGE_192_AES][0]=count;
c[D_IGE_256_AES][0]=count;
for (i=1; i<SIZE_NUM; i++)
{
@ -1272,6 +1283,9 @@ int MAIN(int argc, char **argv)
c[D_CBC_128_CML][i]=c[D_CBC_128_CML][i-1]*l0/l1;
c[D_CBC_192_CML][i]=c[D_CBC_192_CML][i-1]*l0/l1;
c[D_CBC_256_CML][i]=c[D_CBC_256_CML][i-1]*l0/l1;
c[D_IGE_128_AES][i]=c[D_IGE_128_AES][i-1]*l0/l1;
c[D_IGE_192_AES][i]=c[D_IGE_192_AES][i-1]*l0/l1;
c[D_IGE_256_AES][i]=c[D_IGE_256_AES][i-1]*l0/l1;
}
#ifndef OPENSSL_NO_RSA
rsa_c[R_RSA_512][0]=count/2000;
@ -1682,6 +1696,50 @@ int MAIN(int argc, char **argv)
}
}
if (doit[D_IGE_128_AES])
{
for (j=0; j<SIZE_NUM; j++)
{
print_message(names[D_IGE_128_AES],c[D_IGE_128_AES][j],lengths[j]);
Time_F(START);
for (count=0,run=1; COND(c[D_IGE_128_AES][j]); count++)
AES_ige_encrypt(buf,buf,
(unsigned long)lengths[j],&aes_ks1,
iv,AES_ENCRYPT);
d=Time_F(STOP);
print_result(D_IGE_128_AES,j,count,d);
}
}
if (doit[D_IGE_192_AES])
{
for (j=0; j<SIZE_NUM; j++)
{
print_message(names[D_IGE_192_AES],c[D_IGE_192_AES][j],lengths[j]);
Time_F(START);
for (count=0,run=1; COND(c[D_IGE_192_AES][j]); count++)
AES_ige_encrypt(buf,buf,
(unsigned long)lengths[j],&aes_ks2,
iv,AES_ENCRYPT);
d=Time_F(STOP);
print_result(D_IGE_192_AES,j,count,d);
}
}
if (doit[D_IGE_256_AES])
{
for (j=0; j<SIZE_NUM; j++)
{
print_message(names[D_IGE_256_AES],c[D_IGE_256_AES][j],lengths[j]);
Time_F(START);
for (count=0,run=1; COND(c[D_IGE_256_AES][j]); count++)
AES_ige_encrypt(buf,buf,
(unsigned long)lengths[j],&aes_ks3,
iv,AES_ENCRYPT);
d=Time_F(STOP);
print_result(D_IGE_256_AES,j,count,d);
}
}
#endif
#ifndef OPENSSL_NO_CAMELLIA
if (doit[D_CBC_128_CML])

85
crypto/aes/aes_ige.c
View File

@ -70,6 +70,24 @@ static void hexdump(FILE *f,const char *title,const unsigned char *s,int l)
}
*/
#define N_WORDS (AES_BLOCK_SIZE / sizeof(unsigned long))
typedef struct {
unsigned long data[N_WORDS];
} aes_block_t;
// XXX: probably some better way to do this
#if defined(__i386__) || defined(__x86_64__)
#define UNALIGNED_MEMOPS_ARE_FAST 1
#endif
#ifdef UNALIGNED_MEMOPS_ARE_FAST
#define load_block(d, s) (d) = *(const aes_block_t *)(s)
#define store_block(d, s) *(aes_block_t *)(d) = (s)
#else
#define load_block(d, s) memcpy((d).data, (s), AES_BLOCK_SIZE)
#define store_block(d, s) memcpy((d), (s).data, AES_BLOCK_SIZE)
#endif
/* N.B. The IV for this mode is _twice_ the block size */
void AES_ige_encrypt(const unsigned char *in, unsigned char *out,
@ -77,68 +95,73 @@ void AES_ige_encrypt(const unsigned char *in, unsigned char *out,
unsigned char *ivec, const int enc)
{
unsigned long n;
unsigned long len = length;
unsigned char tmp[AES_BLOCK_SIZE];
unsigned char tmp2[AES_BLOCK_SIZE];
unsigned char prev[AES_BLOCK_SIZE];
const unsigned char *iv = ivec;
const unsigned char *iv2 = ivec + AES_BLOCK_SIZE;
unsigned long len;
aes_block_t tmp, tmp2;
aes_block_t iv;
aes_block_t iv2;
OPENSSL_assert(in && out && key && ivec);
OPENSSL_assert((AES_ENCRYPT == enc)||(AES_DECRYPT == enc));
OPENSSL_assert((length%AES_BLOCK_SIZE) == 0);
len = length / AES_BLOCK_SIZE;
load_block(iv, ivec);
load_block(iv2, ivec + AES_BLOCK_SIZE);
if (AES_ENCRYPT == enc)
{
/* XXX: Do a separate case for when in != out (strictly should
check for overlap, too) */
while (len >= AES_BLOCK_SIZE)
while (len)
{
load_block(tmp, in);
/* hexdump(stdout, "in", in, AES_BLOCK_SIZE); */
/* hexdump(stdout, "iv", iv, AES_BLOCK_SIZE); */
for(n=0 ; n < AES_BLOCK_SIZE ; ++n)
out[n] = in[n] ^ iv[n];
for(n=0 ; n < N_WORDS; ++n)
tmp2.data[n] = tmp.data[n] ^ iv.data[n];
/* hexdump(stdout, "in ^ iv", out, AES_BLOCK_SIZE); */
AES_encrypt(out, out, key);
AES_encrypt((unsigned char *)tmp2.data, (unsigned char *)tmp2.data, key);
/* hexdump(stdout,"enc", out, AES_BLOCK_SIZE); */
/* hexdump(stdout,"iv2", iv2, AES_BLOCK_SIZE); */
for(n=0 ; n < AES_BLOCK_SIZE ; ++n)
out[n] ^= iv2[n];
for(n=0 ; n < N_WORDS; ++n)
tmp2.data[n] ^= iv2.data[n];
store_block(out, tmp2);
/* hexdump(stdout,"out", out, AES_BLOCK_SIZE); */
iv = out;
memcpy(prev, in, AES_BLOCK_SIZE);
iv2 = prev;
len -= AES_BLOCK_SIZE;
iv = tmp2;
iv2 = tmp;
--len;
in += AES_BLOCK_SIZE;
out += AES_BLOCK_SIZE;
}
memcpy(ivec, iv, AES_BLOCK_SIZE);
memcpy(ivec + AES_BLOCK_SIZE, iv2, AES_BLOCK_SIZE);
memcpy(ivec, iv.data, AES_BLOCK_SIZE);
memcpy(ivec + AES_BLOCK_SIZE, iv2.data, AES_BLOCK_SIZE);
}
else
{
while (len >= AES_BLOCK_SIZE)
while (len)
{
memcpy(tmp, in, AES_BLOCK_SIZE);
memcpy(tmp2, in, AES_BLOCK_SIZE);
load_block(tmp, in);
tmp2 = tmp;
/* hexdump(stdout, "in", in, AES_BLOCK_SIZE); */
/* hexdump(stdout, "iv2", iv2, AES_BLOCK_SIZE); */
for(n=0 ; n < AES_BLOCK_SIZE ; ++n)
tmp[n] ^= iv2[n];
for(n=0 ; n < N_WORDS; ++n)
tmp.data[n] ^= iv2.data[n];
/* hexdump(stdout, "in ^ iv2", tmp, AES_BLOCK_SIZE); */
AES_decrypt(tmp, out, key);
AES_decrypt((unsigned char *)tmp.data, (unsigned char *)tmp.data, key);
/* hexdump(stdout, "dec", out, AES_BLOCK_SIZE); */
/* hexdump(stdout, "iv", ivec, AES_BLOCK_SIZE); */
for(n=0 ; n < AES_BLOCK_SIZE ; ++n)
out[n] ^= ivec[n];
/* hexdump(stdout, "iv", iv, AES_BLOCK_SIZE); */
for(n=0 ; n < N_WORDS; ++n)
tmp.data[n] ^= iv.data[n];
store_block(out, tmp);
/* hexdump(stdout, "out", out, AES_BLOCK_SIZE); */
memcpy(ivec, tmp2, AES_BLOCK_SIZE);
iv2 = out;
len -= AES_BLOCK_SIZE;
iv = tmp2;
iv2 = tmp;
--len;
in += AES_BLOCK_SIZE;
out += AES_BLOCK_SIZE;
}
memcpy(ivec + AES_BLOCK_SIZE, iv2, AES_BLOCK_SIZE);
memcpy(ivec, iv.data, AES_BLOCK_SIZE);
memcpy(ivec + AES_BLOCK_SIZE, iv2.data, AES_BLOCK_SIZE);
}
}

17
test/igetest.c
View File

@ -218,6 +218,23 @@ static int run_test_vectors(void)
hexdump(stdout, "expected", v->out, v->length);
hexdump(stdout, "got", buf, v->length);
++errs;
}
// try with in == out
memcpy(iv, v->iv, sizeof iv);
memcpy(buf, v->in, v->length);
AES_ige_encrypt(buf, buf, v->length, &key, iv, v->encrypt);
if(memcmp(v->out, buf, v->length))
{
printf("IGE test vector %d failed (with in == out)\n", n);
hexdump(stdout, "key", v->key, sizeof v->key);
hexdump(stdout, "iv", v->iv, sizeof v->iv);
hexdump(stdout, "in", v->in, v->length);
hexdump(stdout, "expected", v->out, v->length);
hexdump(stdout, "got", buf, v->length);
++errs;
}
}