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fuchsia / third_party / dropbear / refs/tags/LTC_DB_0.44 / . / serpent.c
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#include "mycrypt.h"
#ifdef SERPENT
const struct _cipher_descriptor serpent_desc =
{
"serpent",
5,
16, 32, 16, 32,
&serpent_setup,
&serpent_ecb_encrypt,
&serpent_ecb_decrypt,
&serpent_test,
&serpent_keysize
};
/* These defines are derived from Brian Gladman's work. Contact him at gladman@seven77.demon.co.uk
*
* Available on the web at http://fp.gladman.plus.com/cryptography_technology/aes/index.htm
*/
#define sb0(a,b,c,d,e,f,g,h) \
t1 = a ^ d; \
t2 = a & d; \
t3 = c ^ t1; \
t6 = b & t1; \
t4 = b ^ t3; \
t10 = ~t3; \
h = t2 ^ t4; \
t7 = a ^ t6; \
t14 = ~t7; \
t8 = c | t7; \
t11 = t3 ^ t7; \
g = t4 ^ t8; \
t12 = h & t11; \
f = t10 ^ t12; \
e = t12 ^ t14
/* 15 terms */
#define ib0(a,b,c,d,e,f,g,h) \
t1 = ~a; \
t2 = a ^ b; \
t3 = t1 | t2; \
t4 = d ^ t3; \
t7 = d & t2; \
t5 = c ^ t4; \
t8 = t1 ^ t7; \
g = t2 ^ t5; \
t11 = a & t4; \
t9 = g & t8; \
t14 = t5 ^ t8; \
f = t4 ^ t9; \
t12 = t5 | f; \
h = t11 ^ t12; \
e = h ^ t14
/* 14 terms! */
#define sb1(a,b,c,d,e,f,g,h) \
t1 = ~a; \
t2 = b ^ t1; \
t3 = a | t2; \
t4 = d | t2; \
t5 = c ^ t3; \
g = d ^ t5; \
t7 = b ^ t4; \
t8 = t2 ^ g; \
t9 = t5 & t7; \
h = t8 ^ t9; \
t11 = t5 ^ t7; \
f = h ^ t11; \
t13 = t8 & t11; \
e = t5 ^ t13
/* 17 terms */
#define ib1(a,b,c,d,e,f,g,h) \
t1 = a ^ d; \
t2 = a & b; \
t3 = b ^ c; \
t4 = a ^ t3; \
t5 = b | d; \
t7 = c | t1; \
h = t4 ^ t5; \
t8 = b ^ t7; \
t11 = ~t2; \
t9 = t4 & t8; \
f = t1 ^ t9; \
t13 = t9 ^ t11; \
t12 = h & f; \
g = t12 ^ t13; \
t15 = a & d; \
t16 = c ^ t13; \
e = t15 ^ t16
/* 16 terms */
#define sb2(a,b,c,d,e,f,g,h) \
t1 = ~a; \
t2 = b ^ d; \
t3 = c & t1; \
t13 = d | t1; \
e = t2 ^ t3; \
t5 = c ^ t1; \
t6 = c ^ e; \
t7 = b & t6; \
t10 = e | t5; \
h = t5 ^ t7; \
t9 = d | t7; \
t11 = t9 & t10; \
t14 = t2 ^ h; \
g = a ^ t11; \
t15 = g ^ t13; \
f = t14 ^ t15
/* 16 terms */
#define ib2(a,b,c,d,e,f,g,h) \
t1 = b ^ d; \
t2 = ~t1; \
t3 = a ^ c; \
t4 = c ^ t1; \
t7 = a | t2; \
t5 = b & t4; \
t8 = d ^ t7; \
t11 = ~t4; \
e = t3 ^ t5; \
t9 = t3 | t8; \
t14 = d & t11; \
h = t1 ^ t9; \
t12 = e | h; \
f = t11 ^ t12; \
t15 = t3 ^ t12; \
g = t14 ^ t15
/* 17 terms */
#define sb3(a,b,c,d,e,f,g,h) \
t1 = a ^ c; \
t2 = d ^ t1; \
t3 = a & t2; \
t4 = d ^ t3; \
t5 = b & t4; \
g = t2 ^ t5; \
t7 = a | g; \
t8 = b | d; \
t11 = a | d; \
t9 = t4 & t7; \
f = t8 ^ t9; \
t12 = b ^ t11; \
t13 = g ^ t9; \
t15 = t3 ^ t8; \
h = t12 ^ t13; \
t16 = c & t15; \
e = t12 ^ t16
/* 16 term solution that performs less well than 17 term one
in my environment (PPro/PII)
#define sb3(a,b,c,d,e,f,g,h) \
t1 = a ^ b; \
t2 = a & c; \
t3 = a | d; \
t4 = c ^ d; \
t5 = t1 & t3; \
t6 = t2 | t5; \
g = t4 ^ t6; \
t8 = b ^ t3; \
t9 = t6 ^ t8; \
t10 = t4 & t9; \
e = t1 ^ t10; \
t12 = g & e; \
f = t9 ^ t12; \
t14 = b | d; \
t15 = t4 ^ t12; \
h = t14 ^ t15
*/
/* 17 terms */
#define ib3(a,b,c,d,e,f,g,h) \
t1 = b ^ c; \
t2 = b | c; \
t3 = a ^ c; \
t7 = a ^ d; \
t4 = t2 ^ t3; \
t5 = d | t4; \
t9 = t2 ^ t7; \
e = t1 ^ t5; \
t8 = t1 | t5; \
t11 = a & t4; \
g = t8 ^ t9; \
t12 = e | t9; \
f = t11 ^ t12; \
t14 = a & g; \
t15 = t2 ^ t14; \
t16 = e & t15; \
h = t4 ^ t16
/* 15 terms */
#define sb4(a,b,c,d,e,f,g,h) \
t1 = a ^ d; \
t2 = d & t1; \
t3 = c ^ t2; \
t4 = b | t3; \
h = t1 ^ t4; \
t6 = ~b; \
t7 = t1 | t6; \
e = t3 ^ t7; \
t9 = a & e; \
t10 = t1 ^ t6; \
t11 = t4 & t10; \
g = t9 ^ t11; \
t13 = a ^ t3; \
t14 = t10 & g; \
f = t13 ^ t14
/* 17 terms */
#define ib4(a,b,c,d,e,f,g,h) \
t1 = c ^ d; \
t2 = c | d; \
t3 = b ^ t2; \
t4 = a & t3; \
f = t1 ^ t4; \
t6 = a ^ d; \
t7 = b | d; \
t8 = t6 & t7; \
h = t3 ^ t8; \
t10 = ~a; \
t11 = c ^ h; \
t12 = t10 | t11;\
e = t3 ^ t12; \
t14 = c | t4; \
t15 = t7 ^ t14; \
t16 = h | t10; \
g = t15 ^ t16
/* 16 terms */
#define sb5(a,b,c,d,e,f,g,h) \
t1 = ~a; \
t2 = a ^ b; \
t3 = a ^ d; \
t4 = c ^ t1; \
t5 = t2 | t3; \
e = t4 ^ t5; \
t7 = d & e; \
t8 = t2 ^ e; \
t10 = t1 | e; \
f = t7 ^ t8; \
t11 = t2 | t7; \
t12 = t3 ^ t10; \
t14 = b ^ t7; \
g = t11 ^ t12; \
t15 = f & t12; \
h = t14 ^ t15
/* 16 terms */
#define ib5(a,b,c,d,e,f,g,h) \
t1 = ~c; \
t2 = b & t1; \
t3 = d ^ t2; \
t4 = a & t3; \
t5 = b ^ t1; \
h = t4 ^ t5; \
t7 = b | h; \
t8 = a & t7; \
f = t3 ^ t8; \
t10 = a | d; \
t11 = t1 ^ t7; \
e = t10 ^ t11; \
t13 = a ^ c; \
t14 = b & t10; \
t15 = t4 | t13; \
g = t14 ^ t15
/* 15 terms */
#define sb6(a,b,c,d,e,f,g,h) \
t1 = ~a; \
t2 = a ^ d; \
t3 = b ^ t2; \
t4 = t1 | t2; \
t5 = c ^ t4; \
f = b ^ t5; \
t13 = ~t5; \
t7 = t2 | f; \
t8 = d ^ t7; \
t9 = t5 & t8; \
g = t3 ^ t9; \
t11 = t5 ^ t8; \
e = g ^ t11; \
t14 = t3 & t11; \
h = t13 ^ t14
/* 15 terms */
#define ib6(a,b,c,d,e,f,g,h) \
t1 = ~a; \
t2 = a ^ b; \
t3 = c ^ t2; \
t4 = c | t1; \
t5 = d ^ t4; \
t13 = d & t1; \
f = t3 ^ t5; \
t7 = t3 & t5; \
t8 = t2 ^ t7; \
t9 = b | t8; \
h = t5 ^ t9; \
t11 = b | h; \
e = t8 ^ t11; \
t14 = t3 ^ t11; \
g = t13 ^ t14
/* 17 terms */
#define sb7(a,b,c,d,e,f,g,h) \
t1 = ~c; \
t2 = b ^ c; \
t3 = b | t1; \
t4 = d ^ t3; \
t5 = a & t4; \
t7 = a ^ d; \
h = t2 ^ t5; \
t8 = b ^ t5; \
t9 = t2 | t8; \
t11 = d & t3; \
f = t7 ^ t9; \
t12 = t5 ^ f; \
t15 = t1 | t4; \
t13 = h & t12; \
g = t11 ^ t13; \
t16 = t12 ^ g; \
e = t15 ^ t16
/* 17 terms */
#define ib7(a,b,c,d,e,f,g,h) \
t1 = a & b; \
t2 = a | b; \
t3 = c | t1; \
t4 = d & t2; \
h = t3 ^ t4; \
t6 = ~d; \
t7 = b ^ t4; \
t8 = h ^ t6; \
t11 = c ^ t7; \
t9 = t7 | t8; \
f = a ^ t9; \
t12 = d | f; \
e = t11 ^ t12; \
t14 = a & h; \
t15 = t3 ^ f; \
t16 = e ^ t14; \
g = t15 ^ t16
#define k_xor(r,a,b,c,d) \
a ^= skey->serpent.K[4 * (r) + 0]; \
b ^= skey->serpent.K[4 * (r) + 1]; \
c ^= skey->serpent.K[4 * (r) + 2]; \
d ^= skey->serpent.K[4 * (r) + 3]
#define k_set(r,a,b,c,d) \
a = lkey[4 * (r) + 8]; \
b = lkey[4 * (r) + 9]; \
c = lkey[4 * (r) + 10]; \
d = lkey[4 * (r) + 11]
#define k_get(r,a,b,c,d) \
skey->serpent.K[4 * (r) + 0] = a; \
skey->serpent.K[4 * (r) + 1] = b; \
skey->serpent.K[4 * (r) + 2] = c; \
skey->serpent.K[4 * (r) + 3] = d
/* the linear transformation and its inverse */
#define rot(a,b,c,d) \
a = ROL(a, 13); \
c = ROL(c, 3); \
d ^= c ^ (a << 3); \
b ^= a ^ c; \
d = ROL(d, 7); \
b = ROL(b, 1); \
a ^= b ^ d; \
c ^= d ^ (b << 7); \
a = ROL(a, 5); \
c = ROL(c, 22)
#define irot(a,b,c,d) \
c = ROR(c, 22); \
a = ROR(a, 5); \
c ^= d ^ (b << 7); \
a ^= b ^ d; \
d = ROR(d, 7); \
b = ROR(b, 1); \
d ^= c ^ (a << 3); \
b ^= a ^ c; \
c = ROR(c, 3); \
a = ROR(a, 13)
#ifdef CLEAN_STACK
static int _serpent_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey)
#else
int serpent_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey)
#endif
{
unsigned long lkey[140], t, a, b, c, d, e, f, g, h, x;
unsigned long t1,t2,t3,t4,t5,t6,t7,t8,t9,t10,t11,t12,t13,t14,t15,t16;
unsigned char buf[32];
_ARGCHK(key != NULL);
_ARGCHK(skey != NULL);
/* check rounds */
if (num_rounds != 0 && num_rounds != 32) {
return CRYPT_INVALID_ROUNDS;
}
/* check keylen */
if (keylen < 16 || keylen > 32) {
return CRYPT_INVALID_KEYSIZE;
}
/* copy key and expand to 32bytes as required */
for (x = 0; x < (unsigned long)keylen; x++) {
buf[x] = key[x];
}
if (x < 32) {
buf[x++] = (unsigned char)0x01;
while (x < 32) {
buf[x++] = (unsigned char)0;
}
}
/* copy key into 32-bit words */
for (x = 0; x < 8; x++) {
LOAD32L(lkey[x], &buf[x*4]);
}
/* expand using the LFSR to 140 words */
for (x = 0; x < 132; x++) {
t = lkey[x] ^ lkey[x+3] ^ lkey[x+5] ^ lkey[x+7] ^ x ^ 0x9E3779B9UL;
lkey[x + 8] = ROL(t, 11);
}
/* perform the substituions */
for (x = 0; x < 32; ) {
k_set( x,a,b,c,d);sb3(a,b,c,d,e,f,g,h);k_get( x,e,f,g,h); ++x;
k_set( x,a,b,c,d);sb2(a,b,c,d,e,f,g,h);k_get( x,e,f,g,h); ++x;
k_set( x,a,b,c,d);sb1(a,b,c,d,e,f,g,h);k_get( x,e,f,g,h); ++x;
k_set( x,a,b,c,d);sb0(a,b,c,d,e,f,g,h);k_get( x,e,f,g,h); ++x;
k_set( x,a,b,c,d);sb7(a,b,c,d,e,f,g,h);k_get( x,e,f,g,h); ++x;
k_set( x,a,b,c,d);sb6(a,b,c,d,e,f,g,h);k_get( x,e,f,g,h); ++x;
k_set( x,a,b,c,d);sb5(a,b,c,d,e,f,g,h);k_get( x,e,f,g,h); ++x;
k_set( x,a,b,c,d);sb4(a,b,c,d,e,f,g,h);k_get( x,e,f,g,h); ++x;
}
k_set(32,a,b,c,d);sb3(a,b,c,d,e,f,g,h);k_get(32,e,f,g,h);
return CRYPT_OK;
}
#ifdef CLEAN_STACK
int serpent_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey)
{
int x;
x = _serpent_setup(key, keylen, num_rounds, skey);
burn_stack(sizeof(unsigned long)*166 + sizeof(unsigned char)*32);
return x;
}
#endif
#ifdef CLEAN_STACK
static void _serpent_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey)
#else
void serpent_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey)
#endif
{
unsigned long a,b,c,d,e,f,g,h;
unsigned long t1,t2,t3,t4,t5,t6,t7,t8,t9,t10,t11,t12,t13,t14,t15,t16;
_ARGCHK(pt != NULL);
_ARGCHK(ct != NULL);
_ARGCHK(skey != NULL);
LOAD32L(a, &pt[0]);LOAD32L(b, &pt[4]);LOAD32L(c, &pt[8]);LOAD32L(d, &pt[12]);
k_xor( 0,a,b,c,d); sb0(a,b,c,d,e,f,g,h); rot(e,f,g,h);
k_xor( 1,e,f,g,h); sb1(e,f,g,h,a,b,c,d); rot(a,b,c,d);
k_xor( 2,a,b,c,d); sb2(a,b,c,d,e,f,g,h); rot(e,f,g,h);
k_xor( 3,e,f,g,h); sb3(e,f,g,h,a,b,c,d); rot(a,b,c,d);
k_xor( 4,a,b,c,d); sb4(a,b,c,d,e,f,g,h); rot(e,f,g,h);
k_xor( 5,e,f,g,h); sb5(e,f,g,h,a,b,c,d); rot(a,b,c,d);
k_xor( 6,a,b,c,d); sb6(a,b,c,d,e,f,g,h); rot(e,f,g,h);
k_xor( 7,e,f,g,h); sb7(e,f,g,h,a,b,c,d); rot(a,b,c,d);
k_xor( 8,a,b,c,d); sb0(a,b,c,d,e,f,g,h); rot(e,f,g,h);
k_xor( 9,e,f,g,h); sb1(e,f,g,h,a,b,c,d); rot(a,b,c,d);
k_xor(10,a,b,c,d); sb2(a,b,c,d,e,f,g,h); rot(e,f,g,h);
k_xor(11,e,f,g,h); sb3(e,f,g,h,a,b,c,d); rot(a,b,c,d);
k_xor(12,a,b,c,d); sb4(a,b,c,d,e,f,g,h); rot(e,f,g,h);
k_xor(13,e,f,g,h); sb5(e,f,g,h,a,b,c,d); rot(a,b,c,d);
k_xor(14,a,b,c,d); sb6(a,b,c,d,e,f,g,h); rot(e,f,g,h);
k_xor(15,e,f,g,h); sb7(e,f,g,h,a,b,c,d); rot(a,b,c,d);
k_xor(16,a,b,c,d); sb0(a,b,c,d,e,f,g,h); rot(e,f,g,h);
k_xor(17,e,f,g,h); sb1(e,f,g,h,a,b,c,d); rot(a,b,c,d);
k_xor(18,a,b,c,d); sb2(a,b,c,d,e,f,g,h); rot(e,f,g,h);
k_xor(19,e,f,g,h); sb3(e,f,g,h,a,b,c,d); rot(a,b,c,d);
k_xor(20,a,b,c,d); sb4(a,b,c,d,e,f,g,h); rot(e,f,g,h);
k_xor(21,e,f,g,h); sb5(e,f,g,h,a,b,c,d); rot(a,b,c,d);
k_xor(22,a,b,c,d); sb6(a,b,c,d,e,f,g,h); rot(e,f,g,h);
k_xor(23,e,f,g,h); sb7(e,f,g,h,a,b,c,d); rot(a,b,c,d);
k_xor(24,a,b,c,d); sb0(a,b,c,d,e,f,g,h); rot(e,f,g,h);
k_xor(25,e,f,g,h); sb1(e,f,g,h,a,b,c,d); rot(a,b,c,d);
k_xor(26,a,b,c,d); sb2(a,b,c,d,e,f,g,h); rot(e,f,g,h);
k_xor(27,e,f,g,h); sb3(e,f,g,h,a,b,c,d); rot(a,b,c,d);
k_xor(28,a,b,c,d); sb4(a,b,c,d,e,f,g,h); rot(e,f,g,h);
k_xor(29,e,f,g,h); sb5(e,f,g,h,a,b,c,d); rot(a,b,c,d);
k_xor(30,a,b,c,d); sb6(a,b,c,d,e,f,g,h); rot(e,f,g,h);
k_xor(31,e,f,g,h); sb7(e,f,g,h,a,b,c,d); k_xor(32,a,b,c,d);
STORE32L(a, &ct[0]);STORE32L(b, &ct[4]);STORE32L(c, &ct[8]);STORE32L(d, &ct[12]);
}
#ifdef CLEAN_STACK
void serpent_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *skey)
{
_serpent_ecb_encrypt(pt, ct, skey);
burn_stack(sizeof(unsigned long)*24);
}
#endif
#ifdef CLEAN_STACK
static void _serpent_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey)
#else
void serpent_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey)
#endif
{
unsigned long a,b,c,d,e,f,g,h;
unsigned long t1,t2,t3,t4,t5,t6,t7,t8,t9,t10,t11,t12,t13,t14,t15,t16;
_ARGCHK(pt != NULL);
_ARGCHK(ct != NULL);
_ARGCHK(skey != NULL);
LOAD32L(a, &ct[0]);LOAD32L(b, &ct[4]);LOAD32L(c, &ct[8]);LOAD32L(d, &ct[12]);
k_xor(32,a,b,c,d); ib7(a,b,c,d,e,f,g,h); k_xor(31,e,f,g,h);
irot(e,f,g,h); ib6(e,f,g,h,a,b,c,d); k_xor(30,a,b,c,d);
irot(a,b,c,d); ib5(a,b,c,d,e,f,g,h); k_xor(29,e,f,g,h);
irot(e,f,g,h); ib4(e,f,g,h,a,b,c,d); k_xor(28,a,b,c,d);
irot(a,b,c,d); ib3(a,b,c,d,e,f,g,h); k_xor(27,e,f,g,h);
irot(e,f,g,h); ib2(e,f,g,h,a,b,c,d); k_xor(26,a,b,c,d);
irot(a,b,c,d); ib1(a,b,c,d,e,f,g,h); k_xor(25,e,f,g,h);
irot(e,f,g,h); ib0(e,f,g,h,a,b,c,d); k_xor(24,a,b,c,d);
irot(a,b,c,d); ib7(a,b,c,d,e,f,g,h); k_xor(23,e,f,g,h);
irot(e,f,g,h); ib6(e,f,g,h,a,b,c,d); k_xor(22,a,b,c,d);
irot(a,b,c,d); ib5(a,b,c,d,e,f,g,h); k_xor(21,e,f,g,h);
irot(e,f,g,h); ib4(e,f,g,h,a,b,c,d); k_xor(20,a,b,c,d);
irot(a,b,c,d); ib3(a,b,c,d,e,f,g,h); k_xor(19,e,f,g,h);
irot(e,f,g,h); ib2(e,f,g,h,a,b,c,d); k_xor(18,a,b,c,d);
irot(a,b,c,d); ib1(a,b,c,d,e,f,g,h); k_xor(17,e,f,g,h);
irot(e,f,g,h); ib0(e,f,g,h,a,b,c,d); k_xor(16,a,b,c,d);
irot(a,b,c,d); ib7(a,b,c,d,e,f,g,h); k_xor(15,e,f,g,h);
irot(e,f,g,h); ib6(e,f,g,h,a,b,c,d); k_xor(14,a,b,c,d);
irot(a,b,c,d); ib5(a,b,c,d,e,f,g,h); k_xor(13,e,f,g,h);
irot(e,f,g,h); ib4(e,f,g,h,a,b,c,d); k_xor(12,a,b,c,d);
irot(a,b,c,d); ib3(a,b,c,d,e,f,g,h); k_xor(11,e,f,g,h);
irot(e,f,g,h); ib2(e,f,g,h,a,b,c,d); k_xor(10,a,b,c,d);
irot(a,b,c,d); ib1(a,b,c,d,e,f,g,h); k_xor( 9,e,f,g,h);
irot(e,f,g,h); ib0(e,f,g,h,a,b,c,d); k_xor( 8,a,b,c,d);
irot(a,b,c,d); ib7(a,b,c,d,e,f,g,h); k_xor( 7,e,f,g,h);
irot(e,f,g,h); ib6(e,f,g,h,a,b,c,d); k_xor( 6,a,b,c,d);
irot(a,b,c,d); ib5(a,b,c,d,e,f,g,h); k_xor( 5,e,f,g,h);
irot(e,f,g,h); ib4(e,f,g,h,a,b,c,d); k_xor( 4,a,b,c,d);
irot(a,b,c,d); ib3(a,b,c,d,e,f,g,h); k_xor( 3,e,f,g,h);
irot(e,f,g,h); ib2(e,f,g,h,a,b,c,d); k_xor( 2,a,b,c,d);
irot(a,b,c,d); ib1(a,b,c,d,e,f,g,h); k_xor( 1,e,f,g,h);
irot(e,f,g,h); ib0(e,f,g,h,a,b,c,d); k_xor( 0,a,b,c,d);
STORE32L(a, &pt[0]);STORE32L(b, &pt[4]);STORE32L(c, &pt[8]);STORE32L(d, &pt[12]);
}
#ifdef CLEAN_STACK
void serpent_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *skey)
{
_serpent_ecb_decrypt(ct, pt, skey);
burn_stack(sizeof(unsigned long)*24);
}
#endif
int serpent_test(void)
{
static const struct {
int keylen;
unsigned char key[32], pt[16], ct[16];
} tests[] = {
{
16,
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
{ 0xdd, 0xd2, 0x6b, 0x98, 0xa5, 0xff, 0xd8, 0x2c,
0x05, 0x34, 0x5a, 0x9d, 0xad, 0xbf, 0xaf, 0x49 }
},
{
16,
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80 },
{ 0x4a, 0xe9, 0xa2, 0x0b, 0x2b, 0x14, 0xa1, 0x02,
0x90, 0xcb, 0xb8, 0x20, 0xb7, 0xff, 0xb5, 0x10 }
},
{
24,
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08 },
{ 0xe1, 0x1b, 0x01, 0x52, 0x4e, 0xa1, 0xf4, 0x65,
0xa2, 0xa2, 0x00, 0x43, 0xeb, 0x9f, 0x7e, 0x8a }
},
{
32,
{ 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
{ 0xe0, 0x88, 0x5d, 0x44, 0x60, 0x37, 0x34, 0x69,
0xd1, 0xfa, 0x6c, 0x36, 0xa6, 0xe1, 0xc5, 0x2f }
},
{
32,
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
{ 0x17, 0xc6, 0x25, 0x8e, 0x60, 0x09, 0xe2, 0x82,
0x66, 0x18, 0x69, 0xd5, 0x25, 0xf7, 0xd2, 0x04 }
},
{
32,
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
{ 0x9f, 0xe1, 0x43, 0x25, 0x0d, 0x00, 0xe2, 0x56,
0x96, 0xb0, 0x1e, 0x0a, 0x2e, 0xd0, 0x5d, 0xb3 }
}
};
unsigned char buf[2][16];
int x, err;
symmetric_key key;
for (x = 0; x < (int)(sizeof(tests) / sizeof(tests[0])); x++) {
/* setup key */
if ((err = serpent_setup(tests[x].key, tests[x].keylen, 0, &key))!= CRYPT_OK) {
return err;
}
/* encrypt and decrypt */
serpent_ecb_encrypt(tests[x].pt, buf[0], &key);
serpent_ecb_decrypt(buf[0], buf[1], &key);
/* compare */
if (memcmp(buf[0], tests[x].ct, 16) != 0 || memcmp(buf[1], tests[x].pt, 16) != 0) {
return CRYPT_FAIL_TESTVECTOR;
}
}
return CRYPT_OK;
}
int serpent_keysize(int *desired_keysize)
{
_ARGCHK(desired_keysize != NULL);
if (*desired_keysize < 16)
return CRYPT_INVALID_KEYSIZE;
if (*desired_keysize > 32)
*desired_keysize = 32;
return CRYPT_OK;
}
#endif