1#include <stdlib.h>
2#include <stdio.h>
3#include <stdbool.h>
4#include <openssl/pem.h>
5#include <openssl/rsa.h>
6#include <openssl/engine.h>
7#include <openssl/bio.h>
8#include <openssl/x509.h>
9#include <openssl/sha.h>
10#include "AppleMobilePersonalizedTicket.h"
11#include <libDER/libDER.h>
12#include <libDER/asn1Types.h>
13#include <libDER/DER_Decode.h>
14#include <libDER/DER_Encode.h>
15#include <libDER/DER_Keys.h>
16#include <libDER/oids.h>
17#include "DER_Ticket.h"
18
19const unsigned char GoldKeyCert[] = {
200x01, 0x00, 0x00, 0x00, 0x50, 0x00, 0x00, 0x00,
210x00, 0x08, 0x00, 0x00, 0x00, 0x0a, 0x00, 0x00,
220x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00,
230x03, 0x00, 0x00, 0x00, 0x31, 0x6e, 0xc6, 0x4f,
240xf1, 0xe8, 0x7d, 0x81, 0x38, 0x6d, 0xd8, 0xb3,
250x2b, 0xe4, 0xb5, 0xa0, 0x09, 0xaf, 0x74, 0xdd,
260xe9, 0x60, 0x27, 0x42, 0x07, 0xa3, 0xac, 0xef,
270xe5, 0x75, 0x07, 0xa8, 0xc2, 0x2c, 0x25, 0x56,
280x91, 0x37, 0xea, 0xdb, 0xdb, 0x68, 0x4a, 0x1c,
290xe3, 0x29, 0x61, 0x85, 0xd7, 0xd8, 0x66, 0x86,
300x66, 0xbf, 0xbf, 0x98, 0xae, 0xb4, 0xe9, 0x6c,
310x13, 0x81, 0x97, 0x78, 0x2a, 0x8d, 0xdc, 0x37,
320x9a, 0xf1, 0xa4, 0x0a, 0x9d, 0x74, 0xd5, 0x72,
330xbc, 0xb5, 0x64, 0xa6, 0x1a, 0x62, 0xd5, 0x39,
340xfb, 0x6f, 0xc0, 0xd1, 0xc7, 0x93, 0xc3, 0x20,
350xda, 0x84, 0x69, 0x1e, 0xd9, 0x96, 0x2e, 0xc1,
360x4f, 0x28, 0x96, 0x14, 0xa4, 0x68, 0x0a, 0x40,
370xe5, 0x17, 0xe7, 0xd6, 0x76, 0x4d, 0x81, 0xd8,
380xd2, 0xa6, 0x18, 0x82, 0x36, 0x40, 0x97, 0x31,
390xd9, 0x88, 0xdf, 0xaf, 0x05, 0x3a, 0x4b, 0x4e,
400x1b, 0x4a, 0x76, 0x6f, 0xb9, 0x6c, 0x18, 0x5d,
410xd5, 0x98, 0xf0, 0xf1, 0xbe, 0x0a, 0xd9, 0x57,
420x85, 0xc6, 0xc9, 0x63, 0xb3, 0xf5, 0x21, 0x26,
430x07, 0xba, 0x6a, 0x05, 0xfb, 0x5a, 0x06, 0x87,
440x2a, 0x30, 0x3f, 0xa9, 0xea, 0xab, 0x0e, 0x50,
450x70, 0x3b, 0x7e, 0xd4, 0xd2, 0x8c, 0xf3, 0xa1,
460xcf, 0x9a, 0x6c, 0x6b, 0xcf, 0x9b, 0x1b, 0x2a,
470x97, 0x6a, 0x3c, 0x38, 0x40, 0x43, 0xb1, 0x97,
480x19, 0x07, 0x64, 0x11, 0x94, 0x73, 0x14, 0xc9,
490xa3, 0xfe, 0x7f, 0xf6, 0x64, 0x23, 0x73, 0xe3,
500x76, 0xce, 0xf7, 0xf4, 0x2f, 0x6c, 0x9d, 0x0a,
510xf6, 0x39, 0xe6, 0x1d, 0xb2, 0x17, 0x29, 0x39,
520x98, 0x52, 0xda, 0xe0, 0x31, 0xa1, 0xfa, 0x85,
530x52, 0xc2, 0x60, 0xb5, 0x11, 0x42, 0xc6, 0x9b,
540x55, 0xd8, 0x40, 0x37, 0xf7, 0xdb, 0x01, 0x6a,
550xd5, 0x26, 0x3b, 0x27, 0x07, 0x20, 0xf7, 0x58,
560xd5, 0xa4, 0x1c, 0xe6, 0x2f, 0x74, 0x14, 0x6e,
570xa4, 0xe8, 0xc8, 0xe8, 0x9a, 0x39, 0x6d, 0xde,
580x7f, 0x67, 0x65, 0x40, 0x68, 0x26, 0x65, 0x62,
590x95, 0x87, 0x45, 0x62, 0x0d, 0x8d, 0x42, 0xad,
600x3b, 0x4f, 0xd3, 0x8f, 0x58, 0xcb, 0x61, 0x46,
610xc9, 0x3d, 0x7d, 0x75, 0x3c, 0x6d, 0xac, 0xdf,
620x53, 0xf4, 0x66, 0x9e, 0x14, 0x82, 0xc7, 0xd1,
630xd0, 0xec, 0x92, 0x24, 0x97, 0x1e, 0xc9, 0x7a,
640xfd, 0x8f, 0x75, 0xe2, 0xfd, 0x7e, 0x07, 0x44,
650x46, 0x56, 0x64, 0x9b, 0x1b, 0x17, 0xfa, 0xd6,
660xf5, 0xdb, 0xc9, 0x27, 0x3b, 0x60, 0x27, 0x2f,
670x84, 0xd7, 0xac, 0x7f, 0xf3, 0xa7, 0x16, 0x31,
680xfa, 0x19, 0x54, 0x57, 0x98, 0xb5, 0xdb, 0x9c,
690xc3, 0xb5, 0x55, 0x72, 0x98, 0x2f, 0x56, 0x33,
700x7c, 0x38, 0x1f, 0xb4, 0x8c, 0x94, 0x1a, 0x6a,
710x26, 0x8a, 0x84, 0xfc, 0x8d, 0xb1, 0x49, 0xbb,
720x6d, 0x11, 0x36, 0xc9, 0x05, 0x57, 0x87, 0xd2,
730xdb, 0xd3, 0xe3, 0xea, 0x08, 0xb2, 0x9f, 0x44,
740x85, 0xd7, 0xd4, 0x96, 0x25, 0xeb, 0x2b, 0xca,
750x86, 0x0f, 0x33, 0x69, 0xc4, 0xda, 0x98, 0x68,
760x21, 0xad, 0xd8, 0xc4, 0x4e, 0x46, 0x33, 0x43,
770xad, 0xe7, 0xfe, 0x58, 0x10, 0x00, 0x76, 0x3c,
780xd4, 0x14, 0x5a, 0x74, 0x43, 0x04, 0xc3, 0xdd,
790x46, 0xc3, 0xe0, 0x4b, 0x46, 0xb5, 0x84, 0xcb,
800xe6, 0x40, 0x71, 0xdf, 0x50, 0x16, 0x5f, 0xf0,
810x0f, 0xc5, 0x9c, 0x50, 0x64, 0xe0, 0x64, 0x1c,
820x58, 0x87, 0xae, 0x91, 0x9c, 0xb6, 0x57, 0x77,
830xf0, 0xc4, 0x3e, 0xcf, 0xb6, 0xc5, 0x10, 0x0c,
840xea, 0x5b, 0xcc, 0xaf, 0xee, 0x7b, 0x15, 0x4e,
850x4e, 0x3c, 0x29, 0x9c, 0xf8, 0xe6, 0x59, 0xca,
860xaf, 0x48, 0x12, 0x99, 0x76, 0xde, 0x54, 0xe2,
870x75, 0x62, 0x31, 0x17,
88};
89
90#define SIG_LEN     128
91#define HASH_LEN    20
92
93const unsigned char fakeAlgOID[] = {
940x06,0x09,0x2a,0x86,0x48,0x86,0xf7,0x0d,0x01,0x01,0x05
95};
96
97const unsigned char fakeG3Cert[] = {
980x01,0x00,0x00,0x00,
990x1c,0x00,0x00,0x00,
1000x01,0x08,0x00,0x00,
1010x10,0x0a,0x00,0x00,
1020x00,0x00,0x00,0x00,
1030x00,0x04,0x00,0x00,
1040x01,0x00,0x01,0x00,
1050x19,0xfc,0xb6,0x7b,0x4e,0xa8,0xd7,0xb1,0xeb,0xf9,0x19,0x28,0x07,0x7f,0x47,0x4c,
1060xe1,0x9f,0xbe,0x01,0x15,0x5c,0xea,0xda,0xc3,0xd1,0x59,0x3c,0x75,0xed,0x00,0x7b,
1070x22,0x67,0x22,0xd6,0xd3,0xee,0xc2,0x04,0xdf,0x47,0xc4,0x85,0xc0,0x56,0xa4,0x8d,
1080xf3,0xf0,0xcf,0x00,0x9d,0xd2,0x03,0xc1,0x23,0x3f,0xc8,0x9f,0xef,0xfe,0xea,0x50,
1090x33,0x6b,0xbe,0x74,0x1a,0xa3,0x3c,0x13,0xa2,0xc5,0xf6,0x75,0x88,0x1d,0x3f,0xba,
1100xff,0x0d,0x47,0xab,0xbe,0xfe,0x42,0xd3,0xea,0xe2,0xe2,0xb0,0x06,0xd7,0x88,0xf8,
1110x1d,0x93,0xdf,0x86,0xbd,0xd8,0xa8,0x5f,0x2b,0xe3,0x97,0x41,0xa1,0xc6,0x1d,0x69,
1120xe9,0x88,0xdf,0x87,0xbb,0x1b,0xff,0x31,0x82,0xae,0x8a,0x69,0x31,0xca,0xc3,0x90,
1130x0f,0x0d,0x22,0xa3,0xcf,0x8d,0xcc,0x23,0x03,0x10,0xed,0x74,0x8e,0x13,0x74,0x49,
1140x9d,0x9a,0x1c,0xf2,0x57,0x2d,0x18,0x89,0x6d,0xb8,0xcc,0xab,0xcf,0xd9,0xd8,0x0e,
1150x46,0x68,0x98,0xa3,0x81,0x5d,0x18,0xe8,0x4d,0x03,0x96,0x14,0xc5,0xaf,0x21,0x91,
1160xb7,0x8c,0x97,0xa1,0x85,0xde,0x85,0x78,0xa8,0xd7,0x25,0x20,0x9b,0x2b,0x98,0x36,
1170xd5,0xfe,0x14,0x9b,0x5d,0xe3,0x78,0xf4,0xd6,0xb2,0x15,0xc9,0xfd,0x13,0x77,0x7b,
1180x8a,0x5e,0x9e,0x85,0xff,0x53,0x6d,0x24,0x5d,0xc9,0x52,0x16,0x98,0x18,0xb1,0xaf,
1190xe1,0x6a,0xd6,0xe8,0xa9,0x7c,0x78,0x8e,0x9f,0x79,0x21,0xa1,0xde,0xf4,0xaf,0x9c,
1200xd4,0x61,0x52,0xf9,0xe7,0xfc,0xd7,0x10,0x1b,0x91,0x66,0x14,0x26,0xfd,0xda,0xee,
1210xe5,0xd9,0x4c,0xb7,0x9d,0x6d,0x17,0xf8,0xc2,0x21,0xb4,0x34,0x08,0x0c,0x44,0x79,
1220x53,0x9c,0x81,0xbf,0x1f,0x22,0x0a,0xa6,0xe7,0x22,0x5f,0x5c,0xcb,0x31,0x2e,0xf5,
1230x0c,0x1a,0xf1,0x67,0x13,0x7f,0xe6,0xb3,0xb2,0xfe,0x6b,0x09,0xac,0xa6,0xd4,0x14,
1240xe7,0xe9,0x11,0x0e,0x49,0x99,0x06,0x04,0xa4,0x43,0x22,0xec,0x9f,0x59,0x83,0xfb,
1250xef,0xa3,0x8f,0x6b,0xde,0x70,0x0c,0xbb,0x89,0xe9,0x88,0xbc,0xeb,0x36,0x42,0x42,
1260x50,0x84,0xf5,0x93,0x98,0x93,0xed,0xa2,0x1f,0x13,0x60,0x36,0xc8,0x2f,0x9f,0xd1,
1270xc4,0x23,0xf6,0xd0,0x49,0x40,0xab,0xbe,0xf7,0x43,0x02,0x96,0xf0,0x74,0xa5,0x7d,
1280x68,0x89,0xfa,0x58, 0xad, 0x7b, 0x2f, 0x7d, 0xe8, 0x21, 0x34, 0x5e, 0x6c, 0x20,
1290x97, 0x9e
130};
131
132const unsigned char fakeSig[] = {
1330x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,0x10,
1340x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,0x10,
1350x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,0x10,
1360x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,0x10,
1370x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,0x10,
1380x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,0x10,
1390x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,0x10,
1400x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,0x10
141};
142
143static void
144dumpBytes( const char *title, const unsigned char *data, int len, int nonewline );
145
146static int
147rsa_sign(
148    const char *keyFile,
149    unsigned char *plain,
150    unsigned plainLength,
151    unsigned char signature[SIG_LEN] )
152{
153    int rc = -1;
154    FILE *fp = NULL;
155    RSA *rsa = NULL;
156    unsigned signatureLength = 0;
157
158    fp = fopen ( (char*) keyFile, "r" );
159    if ( !fp ) {
160        fprintf( stderr, "failed to open file=%s\n", keyFile );
161        goto cleanup;
162    }
163    rsa = RSA_new();
164    if ( !rsa ) {
165        fprintf( stderr, "RSA_new() failed\n" );
166        goto cleanup;
167    }
168    rsa = (RSA*)PEM_read_RSAPrivateKey( fp, &rsa, NULL, NULL );
169    if ( !rsa ) {
170        fprintf( stderr, "PEM_read_RSAPrivateKey() failed\n" );
171        goto cleanup;
172    }
173    signatureLength = SIG_LEN;
174    char sha1[20] = {};
175    (void) SHA1( plain, plainLength, (unsigned char*)sha1 );
176    rc = RSA_sign( NID_sha1, (unsigned char*)sha1, sizeof( sha1),
177        signature, &signatureLength, rsa );
178    if ( rc != 1 ) {
179        fprintf(stderr, "RSA_sign failed=%d\n", rc );
180        rc = -1;
181        goto cleanup;
182    } else {
183        rc = 0;
184    }
185
186cleanup:
187    if ( fp ) fclose( fp );
188    RSA_free( rsa );
189    return rc;
190}
191
192static int
193rsa_verify(
194    const char *keyFile,
195    unsigned char *plain,
196    unsigned plainLength,
197    unsigned char signature[SIG_LEN] )
198{
199    int rc = -1;
200    FILE *fp = NULL;
201    RSA *rsa = NULL;
202    unsigned signatureLength = 0;
203
204    fp = fopen ( (char*) keyFile, "r" );
205    if ( !fp ) {
206        fprintf( stderr, "failed to open file=%s\n", keyFile );
207        goto cleanup;
208    }
209    rsa = RSA_new();
210    if ( !rsa ) {
211        fprintf( stderr, "RSA_new() failed\n" );
212        goto cleanup;
213    }
214    rsa = (RSA*)PEM_read_RSAPrivateKey( fp, &rsa, NULL, NULL );
215    if ( !rsa ) {
216        fprintf( stderr, "PEM_read_RSAPrivateKey() failed\n" );
217        goto cleanup;
218    }
219    signatureLength = SIG_LEN;
220    char sha1[20] = {};
221    (void) SHA1( plain, plainLength, (unsigned char*)sha1 );
222    rc = RSA_verify( NID_sha1, (unsigned char*)sha1, sizeof( sha1 ),
223        signature, signatureLength, rsa );
224    if ( rc != 1 ) {
225        fprintf(stderr, "RSA_verify failed=%d\n", rc );
226        rc = -1;
227        goto cleanup;
228    } else {
229        rc = 0;
230    }
231
232cleanup:
233    if ( fp ) fclose( fp );
234    RSA_free( rsa );
235    return rc;
236    return rc;
237}
238
239static void
240dumpBytes( const char *title, const unsigned char *data, int len, int nonewline )
241{
242    int width = 16;
243    int line = 0;
244    int multiple = 0;
245
246    multiple = ( len % width == 0 );
247
248    printf( "[%s: %d bytes]\n", title, len );
249    while ( len-- > 0 ) {
250        line++;
251        printf( "%02X ", *data++ );
252        if ( line % width == 0 && len > 0 && !nonewline ) {
253            printf( "\n" );
254        }
255    }
256
257    printf("\n");
258}
259
260static void
261readFile(char *filename, unsigned char **data, unsigned *len)
262{
263    int size = 0;
264    FILE *file = NULL;
265    if ((file = fopen(filename, "r")) == NULL) {
266        fprintf(stderr, "could not open file=%s", filename);
267        return;
268    }
269    fseek(file, 0, SEEK_END);
270    size = ftell(file);
271    *len = size;
272    *data = (unsigned char*)malloc(*len);
273    if (!*data) {
274        fprintf(stderr, "Out of memory");
275        fclose(file);
276        return;
277    }
278    rewind(file);
279    (void)fread(*data, size, 1, file);
280    fclose(file);
281}
282
283static void
284writeFile( char* filename, unsigned char* buf, int len )
285{
286    FILE *file = NULL;
287    file = fopen( filename, "w" );
288    if ( file ) {
289        fwrite( buf, len, 1, file );
290        fclose( file );
291    }
292}
293
294
295static void
296verify_bb_ticket(
297    unsigned char *ticketData,
298    unsigned ticketLength,
299    const char *keyFile,
300    bool doPrint )
301{
302    if ( doPrint ) {
303        dumpBytes( "Ticket (whole)", ticketData, ticketLength, 0 );
304        printf( "\nBreakdown:\n" );
305    }
306
307    DERItem derTicket = { .data = ticketData, .length = ticketLength };
308    DERReturn drtn;
309    DERBbTicket ticket = {};
310    DERSize ticketSize;
311    drtn = DERDecodeBbTicket(&derTicket, &ticket, &ticketSize);
312    if (drtn != DR_Success) goto badTicket;
313    fprintf( stderr, "ticketSize=%u\n", ticketSize );
314
315    // Verify signature if key file exists (we should really use the certificate or GPUK in the ticket here. */
316    if ( keyFile ) {
317        int status =  rsa_verify(
318            keyFile,
319            (unsigned char *)ticket.body.data,
320            ticket.body.length,
321            (unsigned char *)ticket.signature.data );
322        if ( status ) {
323            fprintf( stderr, "rsa_verify failed=%d\n", status );
324        } else {
325            fprintf( stdout, "Signature verified successfully\n");
326        }
327    }
328
329    /* Example of how to retrive fields from ticket. */
330    DERItem snum;
331    drtn = DERSetDecodeItemWithTag(&ticket.body,
332        ASN1_CONTEXT_SPECIFIC | kBbSNUMTag, &snum);
333    if (drtn != DR_Success) goto badTicket;
334    DERItem chipId;
335    drtn = DERSetDecodeItemWithTag(&ticket.body,
336        ASN1_CONTEXT_SPECIFIC | kBbChipIDTag, &chipId);
337    if (drtn != DR_Success) goto badTicket;
338
339    return;
340badTicket:
341    fprintf( stdout, "Bad ticket\n");
342    return;
343}
344
345static void
346verify_ticket_file(
347    const char *ticketFile,
348    const char *keyFile )
349{
350    unsigned char *ticket = NULL;
351    unsigned ticketLength = 0;
352    readFile( (char*)ticketFile, &ticket, &ticketLength );
353    verify_bb_ticket( ticket, ticketLength, keyFile, false );
354}
355
356static void
357make_sample_ap_ticket( void )
358{
359    unsigned char chipId[] = { 0x01, 0x02, 0x03, 0x04 };
360    unsigned char ecid[] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 };
361
362    DERApTicket ticket = { };
363
364    /* Encode the signatureAlgorithm field of the ticket. */
365    DERAlgorithmId algorithmId = { .oid = oidSha1Rsa, .params = {} };
366    ticket.signatureAlgorithm.length = DERLengthOfEncodedSequence(
367        ASN1_CONSTR_SEQUENCE, &algorithmId, DERNumAlgorithmIdItemSpecs,
368        DERAlgorithmIdItemSpecs);
369    ticket.signatureAlgorithm.data = malloc(ticket.signatureAlgorithm.length);
370    DEREncodeSequence(ASN1_CONSTR_SEQUENCE, &algorithmId, DERNumAlgorithmIdItemSpecs, DERAlgorithmIdItemSpecs, ticket.signatureAlgorithm.data, &ticket.signatureAlgorithm.length);
371
372    /* Construct ticket body. */
373    DERSize numBodyItemSpecs = 0;
374    DERItemSpec bodyItemSpecs[50] = {};
375    DERItem bodyItems[50] = {};
376
377    /* Add tags in sorted order. */
378    bodyItemSpecs[numBodyItemSpecs].offset = numBodyItemSpecs * sizeof(DERItem);
379    bodyItemSpecs[numBodyItemSpecs].tag = ASN1_CONTEXT_SPECIFIC | kApECIDTag;
380    bodyItemSpecs[numBodyItemSpecs].options = DER_ENC_NO_OPTS;
381    bodyItems[numBodyItemSpecs].data = ecid;
382    bodyItems[numBodyItemSpecs].length = sizeof(ecid);
383    numBodyItemSpecs++;
384
385    bodyItemSpecs[numBodyItemSpecs].offset = numBodyItemSpecs * sizeof(DERItem);
386    bodyItemSpecs[numBodyItemSpecs].tag = ASN1_CONTEXT_SPECIFIC | kApChipIDTag;
387    bodyItemSpecs[numBodyItemSpecs].options = DER_ENC_NO_OPTS;
388    bodyItems[numBodyItemSpecs].data = chipId;
389    bodyItems[numBodyItemSpecs].length = sizeof(chipId);
390    numBodyItemSpecs++;
391
392    /* Encode ticket body. */
393    ticket.body.length = DERLengthOfEncodedSequence(ASN1_CONSTR_SET,
394        &bodyItems, numBodyItemSpecs, bodyItemSpecs);
395    ticket.body.data = malloc(ticket.body.length);
396    DEREncodeSequence(ASN1_CONSTR_SET, &bodyItems, numBodyItemSpecs,
397        bodyItemSpecs, ticket.body.data, &ticket.body.length);
398
399    // Signature
400    ticket.signature.data = (DERByte *)fakeSig;
401    ticket.signature.length = sizeof(fakeSig);
402
403    // Certificates
404    DERItemSpec certItemSpecs[1];
405    DERItem certItems[1];
406    certItemSpecs[0].offset = 0;
407    certItemSpecs[0].tag = ASN1_CONSTR_SEQUENCE;
408    certItemSpecs[0].options = DER_ENC_WRITE_DER;
409
410    // NOTE: The Certificate should be added to the ticket by the host. I'm just simulating that here
411    // to generate the final ticket blob.
412    readFile("S5L8920_TATSU_FAC_DARWIN_DEV_CHAIN.der", &certItems[0].data, &certItems[0].length);
413
414    ticket.certificates.length = DERLengthOfEncodedSequence(
415        ASN1_CONSTRUCTED | ASN1_CONTEXT_SPECIFIC | 1, &certItems,
416        1, certItemSpecs);
417    ticket.certificates.data = malloc(ticket.certificates.length);
418    DEREncodeSequence(ASN1_CONSTRUCTED | ASN1_CONTEXT_SPECIFIC | 1, &certItems,
419        1, certItemSpecs, ticket.certificates.data, &ticket.certificates.length);
420
421    /* Encode the entire ticket. */
422    DERSize ticketLength = DERLengthOfEncodedSequence(ASN1_CONSTR_SEQUENCE,
423        &ticket, DERNumApTicketItemSpecs, DERApTicketItemSpecs);
424    DERByte *ticketBytes = malloc(ticketLength);
425    DEREncodeSequence(ASN1_CONSTR_SEQUENCE, &ticket, DERNumApTicketItemSpecs, DERApTicketItemSpecs,
426        ticketBytes, &ticketLength);
427
428    // save ticket to file
429    writeFile("ApTicket.bin", ticketBytes, ticketLength);
430
431//cleanup:
432    free(ticket.body.data);
433    free(ticket.signatureAlgorithm.data);
434    free(ticket.certificates.data);
435    free(ticketBytes);
436}
437
438static void
439make_sample_bb_ticket( void )
440{
441    int status = 0;
442    unsigned char chipId[] = { 0x01, 0x02, 0x03, 0x04 };
443    unsigned char snum[] = { 0x01, 0x02, 0x03, 0x04 };
444    unsigned char signature[SIG_LEN] = {};
445    DERByte *ticketBytes = NULL;
446
447    DERBbTicket ticket = {};
448
449    /* Encode the signatureAlgorithm field of the ticket. */
450    DERAlgorithmId algorithmId = { .oid = oidSha1Rsa };
451    ticket.signatureAlgorithm.length = DERLengthOfEncodedSequence(
452        ASN1_CONSTR_SEQUENCE, &algorithmId, DERNumAlgorithmIdItemSpecs,
453        DERAlgorithmIdItemSpecs);
454    ticket.signatureAlgorithm.data = malloc(ticket.signatureAlgorithm.length);
455    DEREncodeSequence(ASN1_CONSTR_SEQUENCE, &algorithmId,
456        DERNumAlgorithmIdItemSpecs, DERAlgorithmIdItemSpecs,
457        ticket.signatureAlgorithm.data, &ticket.signatureAlgorithm.length);
458
459    /* Construct ticket body. */
460    DERSize numBodyItemSpecs = 0;
461    DERItemSpec bodyItemSpecs[50] = {};
462    DERItem bodyItems[50] = {};
463
464    /* Add tags in sorted order. */
465    bodyItemSpecs[numBodyItemSpecs].offset = numBodyItemSpecs * sizeof(DERItem);
466    bodyItemSpecs[numBodyItemSpecs].tag = ASN1_CONTEXT_SPECIFIC | kBbSNUMTag;
467    bodyItemSpecs[numBodyItemSpecs].options = DER_ENC_NO_OPTS;
468    bodyItems[numBodyItemSpecs].data = snum;
469    bodyItems[numBodyItemSpecs].length = sizeof(snum);
470    numBodyItemSpecs++;
471
472    bodyItemSpecs[numBodyItemSpecs].offset = numBodyItemSpecs * sizeof(DERItem);
473    bodyItemSpecs[numBodyItemSpecs].tag = ASN1_CONTEXT_SPECIFIC | kBbChipIDTag;
474    bodyItemSpecs[numBodyItemSpecs].options = DER_ENC_NO_OPTS;
475    bodyItems[numBodyItemSpecs].data = chipId;
476    bodyItems[numBodyItemSpecs].length = sizeof(chipId);
477    numBodyItemSpecs++;
478
479    /* Encode ticket body. */
480    ticket.body.length = DERLengthOfEncodedSequence(ASN1_CONSTR_SET,
481        &bodyItems, numBodyItemSpecs, bodyItemSpecs);
482    ticket.body.data = malloc(ticket.body.length);
483    DEREncodeSequence(ASN1_CONSTR_SET, &bodyItems, numBodyItemSpecs, bodyItemSpecs,
484        ticket.body.data, &ticket.body.length);
485
486    // NOTE: In the SEE machine, the Body above will then be hashed/signed to generate signature
487    status =  rsa_sign(
488        "G1_GPrK.pem",
489        ticket.body.data,
490        ticket.body.length,
491        (unsigned char *)signature );
492    if ( status ) {
493        fprintf( stderr, "rsa_sign failed=%d\n", status );
494        goto cleanup;
495    } else {
496        fprintf( stdout, "Signed successfully\n");
497    }
498
499    status =  rsa_verify(
500        "G1_GPrK.pem",
501        ticket.body.data,
502        ticket.body.length,
503        (unsigned char *)signature );
504    if ( status ) {
505        fprintf( stderr, "rsa_verify failed=%d\n", status );
506        goto cleanup;
507    } else {
508        fprintf( stdout, "Signature verified successfully\n");
509    }
510
511    // Signature
512    ticket.signature.data = signature;
513    ticket.signature.length = SIG_LEN;
514
515    // Certificates
516    ticket.gpuk.length = sizeof(GoldKeyCert);
517    ticket.gpuk.data = (DERByte *)GoldKeyCert;
518
519    /* Encode the entire ticket. */
520    DERSize ticketLength = DERLengthOfEncodedSequence(ASN1_CONSTR_SEQUENCE,
521        &ticket, DERNumBbTicketItemSpecs, DERBbTicketItemSpecs);
522    ticketBytes = malloc(ticketLength);
523    DEREncodeSequence(ASN1_CONSTR_SEQUENCE, &ticket, DERNumBbTicketItemSpecs,
524        DERBbTicketItemSpecs, ticketBytes, &ticketLength);
525
526    // save ticket to file
527    writeFile("BbTicket.bin", ticketBytes, ticketLength);
528
529cleanup:
530    free(ticket.body.data);
531    free(ticket.signatureAlgorithm.data);
532    free(ticketBytes);
533}
534
535static void
536long_tag_test(void)
537{
538    printf("ASN1_TAG_MASK           0x%.016qx\n", (uint64_t)ASN1_TAG_MASK);
539    printf("ASN1_TAGNUM_MASK        0x%.016qx\n", (uint64_t)ASN1_TAGNUM_MASK);
540    printf("ASN1_METHOD_MASK        0x%.016qx\n", (uint64_t)ASN1_METHOD_MASK);
541    printf("ASN1_PRIMITIVE          0x%.016qx\n", (uint64_t)ASN1_PRIMITIVE);
542    printf("ASN1_CONSTRUCTED        0x%.016qx\n", (uint64_t)ASN1_CONSTRUCTED);
543    printf("ASN1_CLASS_MASK         0x%.016qx\n", (uint64_t)ASN1_CLASS_MASK);
544    printf("ASN1_UNIVERSAL          0x%.016qx\n", (uint64_t)ASN1_UNIVERSAL);
545    printf("ASN1_APPLICATION        0x%.016qx\n", (uint64_t)ASN1_APPLICATION);
546    printf("ASN1_CONTEXT_SPECIFIC   0x%.016qx\n", (uint64_t)ASN1_CONTEXT_SPECIFIC);
547    printf("ASN1_PRIVATE            0x%.016qx\n", (uint64_t)ASN1_PRIVATE);
548
549    DERByte buf[10];
550    DERSize len = sizeof(buf);
551    DERReturn drtn;
552    DERTag tag = ASN1_CONTEXT_SPECIFIC | ASN1_TAGNUM_MASK;
553    drtn = DEREncodeItem(tag, 0, 0, buf, &len);
554    if (drtn)
555    {
556        printf("DEREncodeItem: %u\n", drtn);
557    }
558    DERItem der = { .data = buf, .length = len };
559
560    dumpBytes("tlv", buf, len, 0);
561
562    DERDecodedInfo decoded;
563    drtn = DERDecodeItem(&der, &decoded);
564    if (drtn)
565    {
566        printf("DERDecodeItem: %u\n", drtn);
567    }
568    if (decoded.tag != tag)
569    {
570        printf("DERDecodeItem tag: 0x%qx != 0x%qx\n", (uint64_t)decoded.tag, (uint64_t)tag);
571    }
572    printf("DERDecodeItem tag: 0x%qx encoded in %u bytes, decoded length: %u\n",
573        (uint64_t)tag, len, decoded.content.length);
574}
575
576int main(int argc, char **argv)
577{
578    long_tag_test();
579    printf( "=> Making sample BB ticket...\n");
580    make_sample_bb_ticket();
581    printf( "=> Making sample AP ticket...\n");
582    make_sample_ap_ticket();
583    printf( "=> Verifying signature in bb_ticket.bin ...\n");
584    verify_ticket_file( "bb_ticket.bin", "G1_GPrK.pem" );
585    return 0;
586}
587