Newer
Older
#ifndef _CRT_SECURE_NO_WARNINGS
#define _CRT_SECURE_NO_WARNINGS
#endif
#include <stdio.h>
#include "../cshared/copts.h"
#include "../cshared/cstr.h"
#include "EtsiTs103097Certificate.h"
#if defined(CYGWIN) || !defined(WIN32)
#include <glob.h>
#ifndef _GLOB_H_
#define _GLOB_H_
typedef struct {
size_t gl_pathc; /* Count of total paths so far. */
size_t gl_matchc; /* Count of paths matching pattern. */
size_t gl_offs; /* Reserved at beginning of gl_pathv. */
int gl_flags; /* Copy of flags parameter to glob. */
char **gl_pathv; /* List of paths matching pattern. */
}glob_t;
int glob (const char * pattern, int flags , int (*)(const char *, int), glob_t * gl);
void globfree (glob_t *);
int glob_pattern_p (const char *, int);
#endif // _GLOB_H_
#endif
#include "ecc_api.h"
#define CERT_MAX_SIZE 0x10000
static const char * _outPath = "-";
static int _canonicalize = 1;
static FILE * _out;
static copt_t _options [] = {
{ "h?", "help", COPT_HELP, NULL, "Print this help page" },
{ "o", "out", COPT_STR, (void*)&_outPath, "Output path [stdout by default]" },
{ "C", "no-canonicalize", COPT_BOOLI, (void*)&_canonicalize, "No canonicalize" },
{ "n", "fnames", COPT_BOOL, (void*)&_fnames, "Use file names instead of IDs" },
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
{ NULL, NULL, COPT_END, NULL, NULL }
};
char * _bin2hex(char * hex, size_t hlen, const char * bin, size_t blen);
HashAlgorithm_t CertificateWholeHashAlgorithm(const EtsiTs103097Certificate_t * const cert, const char * name);
int process_cert(const pchar_t * name, uint8_t * buf, const uint8_t * end);
static ecc_curve_id _pk_type_to_curveid[] = {
0,
ecies_nistp256, //Signature_PR_ecdsaNistP256Signature,
ecies_brainpoolp256r, //Signature_PR_ecdsaBrainpoolP256r1Signature,
ecies_brainpoolp384r //Signature_PR_ecdsaBrainpoolP384r1Signature
};
int main(int argc, char ** argv)
{
//parse options
argc = coptions(argc, argv, COPT_HELP_NOVALUES , _options);
if(argc < 2){
if(argc < 0 && (0-argc)<((sizeof(_options)/sizeof(_options[0]))-1)){
printf("Unknown option %s\n", argv[0-argc]);
}
const char * a = strrchr(argv[0], '/');
if (a == NULL) a = argv[0];
coptions_help(stdout, a, COPT_HELP_NOVALUES, _options, "... certificate files ...");
return -1;
}
if(ecc_api_init()){
fprintf(stderr, "Cannot initialize ECC engine\n");
return -1;
}
if(!cstrequal("-", _outPath)){
_out = fopen(_outPath, "wb");
if(_out == NULL){
perror(_outPath);
return -1;
}
}else{
_out = stdout;
}
char * buf = malloc(CERT_MAX_SIZE);
char * ebuf;
for(int argi=1; argi<argc; argi++){
ebuf = cstrnload(buf, CERT_MAX_SIZE, argv[argi]);
if(ebuf && (ebuf - buf) > 0){
const pchar_t* fname = cstrlastpathelement(argv[argi]);
process_cert(fname, buf, ebuf);
}else{
// check if it is a mask
#if defined(_GLOB_H_)
glob_t gl = {0};
if(0 == glob( argv[argi], 0, NULL, &gl )){
for (size_t i=0; i<gl.gl_pathc; i++){
ebuf = cstrnload(buf, CERT_MAX_SIZE, gl.gl_pathv[i]);
if (ebuf && (ebuf - buf) > 0) {
const pchar_t* fname = cstrlastpathelement(gl.gl_pathv[i]);
process_cert(fname, buf, ebuf);
}
}
globfree (&gl);
}
#elif defined(WIN32)
// try use the FindFile approach
WIN32_FIND_DATA fd;
size_t len = cstrlen(argv[argi]);
pchar_t * path = cstralloc(len + MAX_PATH);
cstrcpy(path, argv[argi]);
pchar_t * fname = cstrlastpathelement(path);
HANDLE h = FindFirstFile(path, &fd);
if(INVALID_HANDLE_VALUE != h) do {
cstrcpy(fname, fd.cFileName);
ebuf = cstrnload(buf, CERT_MAX_SIZE, path);
if(ebuf && (ebuf - buf) > 0){
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
process_cert(fname, buf, ebuf);
}
}while(FindNextFile(h, &fd));
FindClose(h);
#endif
}
}
free(buf);
return 0;
}
typedef struct its_asn_codec_ctx_s {
asn_codec_ctx_t ctx;
ecc_curve_id curve;
size_t mcount;
struct {
uint8_t* ptr;
size_t shift;
}move[8];
}its_asn_codec_ctx_t;
static int update_ecc_curve(ecc_curve_id curve, EccP256CurvePoint_t* p)
{
if (p->present == EccP256CurvePoint_PR_uncompressedP256 || p->present == EccP256CurvePoint_PR_x_only) {
void* key = ecc_key_public_set(curve, p->present - 1, p->choice.uncompressedP256.x.buf, p->choice.uncompressedP256.y.buf);
if (key) {
int sign;
char x[48], y[48];
ecc_key_public(key, &x[0], &y[0], &sign);
p->present = EccP256CurvePoint_PR_compressed_y_0 + (sign ? 1 : 0);
ecc_key_free(key);
return 1;
}
}
return 0;
}
int process_cert(const pchar_t * name, uint8_t * buf, const uint8_t * ebuf)
{
// determine the hash alg
EtsiTs103097Certificate_t * cert = NULL;
asn_dec_rval_t rc_d;
its_asn_codec_ctx_t ctx = {{0}};
int updated = 0;
HashAlgorithm_t halg;
rc_d = asn_decode(&ctx.ctx, ATS_BASIC_OER, &asn_DEF_EtsiTs103097Certificate, (void**)&cert, buf, ebuf - buf);
if (rc_d.code != RC_OK){
fprintf(stderr, "%s: ERROR: failed to load at position %d\n %.30s\n", name, (int)rc_d.consumed, buf + rc_d.consumed);
return -1;
}
if (_canonicalize) {
if (cert->toBeSigned.verifyKeyIndicator.present == VerificationKeyIndicator_PR_verificationKey) {
// use ecdsaBrainpoolP256r1. other variantes has the same structure
updated += update_ecc_curve(_pk_type_to_curveid[cert->toBeSigned.verifyKeyIndicator.choice.verificationKey.present],
&cert->toBeSigned.verifyKeyIndicator.choice.verificationKey.choice.ecdsaNistP256);
}
else if (cert->toBeSigned.verifyKeyIndicator.present == VerificationKeyIndicator_PR_reconstructionValue) {
if (cert->toBeSigned.verifyKeyIndicator.choice.reconstructionValue.present != EccP256CurvePoint_PR_compressed_y_0 &&
cert->toBeSigned.verifyKeyIndicator.choice.reconstructionValue.present != EccP256CurvePoint_PR_compressed_y_1) {
fprintf(stderr, "%s: ERROR: reconstruction value should be in compressed form\n", name);
return -1;
}
}
if (cert->toBeSigned.encryptionKey) {
updated += update_ecc_curve(_pk_type_to_curveid[cert->toBeSigned.encryptionKey->publicKey.present],
&cert->toBeSigned.encryptionKey->publicKey.choice.eciesNistP256);
}
if (cert->signature) {
if (cert->signature->choice.ecdsaNistP256Signature.rSig.present != EccP256CurvePoint_PR_x_only) {
cert->signature->choice.ecdsaNistP256Signature.rSig.present = EccP256CurvePoint_PR_x_only;
updated++;
}
}
if (updated) {
asn_enc_rval_t rc_e = asn_encode_to_buffer(NULL, ATS_CANONICAL_OER, &asn_DEF_EtsiTs103097Certificate, cert, buf, CERT_MAX_SIZE);
if (rc_e.encoded < 0) {
fprintf(stderr, "%s: ERROR: OER encoding failed for canonicalized certificate at type %s\n", name, rc_e.failed_type->name);
return -1;
}
rc_d.consumed = rc_e.encoded;
}
}
halg = CertificateWholeHashAlgorithm(cert, name);
ASN_STRUCT_FREE(asn_DEF_EtsiTs103097Certificate, cert);
uint8_t hash[256];
uint8_t * digest;
case HashAlgorithm_sha256:
sha256_calculate(&hash[0], buf, rc_d.consumed);
digest = &hash[32 - 8];
break;
case HashAlgorithm_sha384:
sha384_calculate(&hash[0], buf, rc_d.consumed);
digest = &hash[48 - 8];
break;
default:
return -1;
}
char hex[20];
* cstr_bin2hex(hex, sizeof(hex), digest, 8) = 0;
fprintf(_out, "%s %s\n", hex, name);
return 0;
}