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bbbb95e869
xmss-KAT-generator/params.c
Joost Rijneveld bbbb95e869
Fix erroneous index length for XMSSMT 
This produced repeated indices when reaching 2^32 signatures.
This was introduced in 9b35b00d98
with the re-introduction of runtime parameters. Compile-time parameters
did not contain this error.
2017-10-24 17:40:21 +02:00

470 satır
11 KiB
C
Ham Suçlama Geçmiş

#include <stdint.h>
#include <string.h>
#include "params.h"
int xmss_str_to_oid(uint32_t *oid, const char *s)
{
if (!strcmp(s, "XMSS-SHA2_10_256")) {
*oid = 0x01000001;
}
else if (!strcmp(s, "XMSS-SHA2_16_256")) {
*oid = 0x02000002;
}
else if (!strcmp(s, "XMSS-SHA2_20_256")) {
*oid = 0x03000003;
}
else if (!strcmp(s, "XMSS-SHA2_10_512")) {
*oid = 0x04000004;
}
else if (!strcmp(s, "XMSS-SHA2_16_512")) {
*oid = 0x05000005;
}
else if (!strcmp(s, "XMSS-SHA2_20_512")) {
*oid = 0x06000006;
}
else if (!strcmp(s, "XMSS-SHAKE_10_256")) {
*oid = 0x07000007;
}
else if (!strcmp(s, "XMSS-SHAKE_16_256")) {
*oid = 0x08000008;
}
else if (!strcmp(s, "XMSS-SHAKE_20_256")) {
*oid = 0x09000009;
}
else if (!strcmp(s, "XMSS-SHAKE_10_512")) {
*oid = 0x0a00000a;
}
else if (!strcmp(s, "XMSS-SHAKE_16_512")) {
*oid = 0x0b00000b;
}
else if (!strcmp(s, "XMSS-SHAKE_20_512")) {
*oid = 0x0c00000c;
}
else {
return -1;
}
return 0;
}
int xmssmt_str_to_oid(uint32_t *oid, const char *s)
{
if (!strcmp(s, "XMSSMT-SHA2_20/2_256")) {
*oid = 0x01000001;
}
else if (!strcmp(s, "XMSSMT-SHA2_20/4_256")) {
*oid = 0x02000002;
}
else if (!strcmp(s, "XMSSMT-SHA2_40/2_256")) {
*oid = 0x03000003;
}
else if (!strcmp(s, "XMSSMT-SHA2_40/4_256")) {
*oid = 0x04000004;
}
else if (!strcmp(s, "XMSSMT-SHA2_40/8_256")) {
*oid = 0x05000005;
}
else if (!strcmp(s, "XMSSMT-SHA2_60/3_256")) {
*oid = 0x06000006;
}
else if (!strcmp(s, "XMSSMT-SHA2_60/6_256")) {
*oid = 0x07000007;
}
else if (!strcmp(s, "XMSSMT-SHA2_60/12_256")) {
*oid = 0x08000008;
}
else if (!strcmp(s, "XMSSMT-SHA2_20/2_512")) {
*oid = 0x09000009;
}
else if (!strcmp(s, "XMSSMT-SHA2_20/4_512")) {
*oid = 0x0a00000a;
}
else if (!strcmp(s, "XMSSMT-SHA2_40/2_512")) {
*oid = 0x0b00000b;
}
else if (!strcmp(s, "XMSSMT-SHA2_40/4_512")) {
*oid = 0x0c00000c;
}
else if (!strcmp(s, "XMSSMT-SHA2_40/8_512")) {
*oid = 0x0d00000d;
}
else if (!strcmp(s, "XMSSMT-SHA2_60/3_512")) {
*oid = 0x0e00000e;
}
else if (!strcmp(s, "XMSSMT-SHA2_60/6_512")) {
*oid = 0x0f00000f;
}
else if (!strcmp(s, "XMSSMT-SHA2_60/12_512")) {
*oid = 0x01010101;
}
else if (!strcmp(s, "XMSSMT-SHAKE_20/2_256")) {
*oid = 0x02010102;
}
else if (!strcmp(s, "XMSSMT-SHAKE_20/4_256")) {
*oid = 0x03010103;
}
else if (!strcmp(s, "XMSSMT-SHAKE_40/2_256")) {
*oid = 0x04010104;
}
else if (!strcmp(s, "XMSSMT-SHAKE_40/4_256")) {
*oid = 0x05010105;
}
else if (!strcmp(s, "XMSSMT-SHAKE_40/8_256")) {
*oid = 0x06010106;
}
else if (!strcmp(s, "XMSSMT-SHAKE_60/3_256")) {
*oid = 0x07010107;
}
else if (!strcmp(s, "XMSSMT-SHAKE_60/6_256")) {
*oid = 0x08010108;
}
else if (!strcmp(s, "XMSSMT-SHAKE_60/12_256")) {
*oid = 0x09010109;
}
else if (!strcmp(s, "XMSSMT-SHAKE_20/2_512")) {
*oid = 0x0a01010a;
}
else if (!strcmp(s, "XMSSMT-SHAKE_20/4_512")) {
*oid = 0x0b01010b;
}
else if (!strcmp(s, "XMSSMT-SHAKE_40/2_512")) {
*oid = 0x0c01010c;
}
else if (!strcmp(s, "XMSSMT-SHAKE_40/4_512")) {
*oid = 0x0d01010d;
}
else if (!strcmp(s, "XMSSMT-SHAKE_40/8_512")) {
*oid = 0x0e01010e;
}
else if (!strcmp(s, "XMSSMT-SHAKE_60/3_512")) {
*oid = 0x0f01010f;
}
else if (!strcmp(s, "XMSSMT-SHAKE_60/6_512")) {
*oid = 0x01020201;
}
else if (!strcmp(s, "XMSSMT-SHAKE_60/12_512")) {
*oid = 0x02020202;
}
else {
return -1;
}
return 0;
}
int xmss_parse_oid(xmss_params *params, const uint32_t oid)
{
switch (oid) {
case 0x01000001:
case 0x02000002:
case 0x03000003:
case 0x04000004:
case 0x05000005:
case 0x06000006:
params->func = XMSS_SHA2;
break;
case 0x07000007:
case 0x08000008:
case 0x09000009:
case 0x0a00000a:
case 0x0b00000b:
case 0x0c00000c:
params->func = XMSS_SHAKE;
break;
default:
return 1;
}
switch (oid) {
case 0x01000001:
case 0x02000002:
case 0x03000003:
case 0x07000007:
case 0x08000008:
case 0x09000009:
params->n = 32;
break;
case 0x04000004:
case 0x05000005:
case 0x06000006:
case 0x0a00000a:
case 0x0b00000b:
case 0x0c00000c:
params->n = 64;
break;
default:
return 1;
}
switch (oid) {
case 0x01000001:
case 0x04000004:
case 0x07000007:
case 0x0a00000a:
params->full_height = 10;
break;
case 0x02000002:
case 0x05000005:
case 0x08000008:
case 0x0b00000b:
params->full_height = 16;
break;
case 0x03000003:
case 0x06000006:
case 0x09000009:
case 0x0c00000c:
params->full_height = 20;
break;
default:
return 1;
}
params->d = 1;
params->tree_height = params->full_height / params->d;
params->wots_w = 16;
params->wots_log_w = 4;
if (params->n == 32) {
params->wots_len1 = 64;
}
else {
params->wots_len1 = 128;
}
params->wots_len2 = 3;
params->wots_len = params->wots_len1 + params->wots_len2;
params->wots_keysize = params->wots_len * params->n;
params->index_len = 4;
params->bytes = (params->index_len + params->n + params->d*params->wots_keysize
+ params->full_height *params->n);
params->publickey_bytes = 2*params->n;
params->privatekey_bytes = 4*params->n + params->index_len;
// TODO figure out sensible and legal values for this based on the above
params->bds_k = 0;
return 0;
}
int xmssmt_parse_oid(xmss_params *params, const uint32_t oid)
{
switch (oid) {
case 0x01000001:
case 0x02000002:
case 0x03000003:
case 0x04000004:
case 0x05000005:
case 0x06000006:
case 0x07000007:
case 0x08000008:
case 0x09000009:
case 0x0a00000a:
case 0x0b00000b:
case 0x0c00000c:
case 0x0d00000d:
case 0x0e00000e:
case 0x0f00000f:
case 0x01010101:
params->func = XMSS_SHA2;
break;
case 0x02010102:
case 0x03010103:
case 0x04010104:
case 0x05010105:
case 0x06010106:
case 0x07010107:
case 0x08010108:
case 0x09010109:
case 0x0a01010a:
case 0x0b01010b:
case 0x0c01010c:
case 0x0d01010d:
case 0x0e01010e:
case 0x0f01010f:
case 0x01020201:
case 0x02020202:
params->func = XMSS_SHAKE;
break;
default:
return 1;
}
switch (oid) {
case 0x01000001:
case 0x02000002:
case 0x03000003:
case 0x04000004:
case 0x05000005:
case 0x06000006:
case 0x07000007:
case 0x08000008:
case 0x02010102:
case 0x03010103:
case 0x04010104:
case 0x05010105:
case 0x06010106:
case 0x07010107:
case 0x08010108:
case 0x09010109:
params->n = 32;
break;
case 0x09000009:
case 0x0a00000a:
case 0x0b00000b:
case 0x0c00000c:
case 0x0d00000d:
case 0x0e00000e:
case 0x0f00000f:
case 0x01010101:
case 0x0a01010a:
case 0x0b01010b:
case 0x0c01010c:
case 0x0d01010d:
case 0x0e01010e:
case 0x0f01010f:
case 0x01020201:
case 0x02020202:
params->n = 64;
break;
default:
return 1;
}
switch (oid) {
case 0x01000001:
case 0x02000002:
case 0x09000009:
case 0x0a00000a:
case 0x02010102:
case 0x03010103:
case 0x0a01010a:
case 0x0b01010b:
params->full_height = 20;
break;
case 0x03000003:
case 0x04000004:
case 0x05000005:
case 0x0b00000b:
case 0x0c00000c:
case 0x0d00000d:
case 0x04010104:
case 0x05010105:
case 0x06010106:
case 0x0c01010c:
case 0x0d01010d:
case 0x0e01010e:
params->full_height = 40;
break;
case 0x06000006:
case 0x07000007:
case 0x08000008:
case 0x0e00000e:
case 0x0f00000f:
case 0x01010101:
case 0x07010107:
case 0x08010108:
case 0x09010109:
case 0x0f01010f:
case 0x01020201:
case 0x02020202:
params->full_height = 60;
break;
default:
return 1;
}
switch (oid) {
case 0x01000001:
case 0x03000003:
case 0x09000009:
case 0x0b00000b:
case 0x02010102:
case 0x04010104:
case 0x0a01010a:
case 0x0c01010c:
params->d = 2;
break;
case 0x02000002:
case 0x04000004:
case 0x0a00000a:
case 0x0c00000c:
case 0x03010103:
case 0x05010105:
case 0x0b01010b:
case 0x0d01010d:
params->d = 4;
break;
case 0x05000005:
case 0x0d00000d:
case 0x06010106:
case 0x0e01010e:
params->d = 8;
break;
case 0x06000006:
case 0x0e00000e:
case 0x07010107:
case 0x0f01010f:
params->d = 3;
break;
case 0x07000007:
case 0x0f00000f:
case 0x08010108:
case 0x01020201:
params->d = 6;
break;
case 0x08000008:
case 0x01010101:
case 0x09010109:
case 0x02020202:
params->d = 12;
break;
default:
return 1;
}
params->tree_height = params->full_height / params->d;
params->wots_w = 16;
params->wots_log_w = 4;
if (params->n == 32) {
params->wots_len1 = 64;
}
else {
params->wots_len1 = 128;
}
params->wots_len2 = 3;
params->wots_len = params->wots_len1 + params->wots_len2;
params->wots_keysize = params->wots_len * params->n;
/* Round index_len up to nearest byte. */
params->index_len = (params->full_height + 7) / 8;
params->bytes = (params->index_len + params->n + params->d*params->wots_keysize
+ params->full_height *params->n);
params->publickey_bytes = 2*params->n;
params->privatekey_bytes = 4*params->n + params->index_len;
// TODO figure out sensible and legal values for this based on the above
params->bds_k = 0;
return 0;
}
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