1: /*
2: ================================================================================
3: RPL/2 (R) version 4.1.21
4: Copyright (C) 1989-2015 Dr. BERTRAND Joël
5:
6: This file is part of RPL/2.
7:
8: RPL/2 is free software; you can redistribute it and/or modify it
9: under the terms of the CeCILL V2 License as published by the french
10: CEA, CNRS and INRIA.
11:
12: RPL/2 is distributed in the hope that it will be useful, but WITHOUT
13: ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14: FITNESS FOR A PARTICULAR PURPOSE. See the CeCILL V2 License
15: for more details.
16:
17: You should have received a copy of the CeCILL License
18: along with RPL/2. If not, write to info@cecill.info.
19: ================================================================================
20: */
21:
22:
23: #include "rpl-conv.h"
24:
25:
26: /*
27: ================================================================================
28: Fonction 'cipher'
29: ================================================================================
30: Entrées :
31: --------------------------------------------------------------------------------
32: Sorties :
33: --------------------------------------------------------------------------------
34: Effets de bord : néant
35: ================================================================================
36: */
37:
38: void
39: instruction_cipher(struct_processus *s_etat_processus)
40: {
41: const EVP_CIPHER *EVP_chiffrement;
42: const EVP_MD *EVP_sum;
43:
44: int longueur_clef;
45:
46: integer8 longueur_clef_binaire;
47: integer8 longueur_iv_binaire;
48: integer8 longueur_message;
49: integer8 longueur_message_chiffre;
50: integer8 nombre_cycles;
51:
52: logical1 encodage;
53: logical1 generation_clef;
54: logical1 somme_invalide;
55:
56: logical8 sel;
57:
58: struct_liste_chainee *l_element_courant;
59:
60: struct_objet *s_objet_argument_1;
61: struct_objet *s_objet_argument_2;
62: struct_objet *s_objet_resultat_1;
63: struct_objet *s_objet_resultat_2;
64:
65: unsigned char *algorithme_chiffrement;
66: unsigned char *clef;
67: unsigned char *clef_binaire;
68: unsigned char *controle;
69: unsigned char *direction;
70: unsigned char *fonction;
71: unsigned char *instruction;
72: unsigned char *iv;
73: unsigned char *iv_binaire;
74: unsigned char *message;
75: unsigned char *message_chiffre;
76: unsigned char *tampon;
77:
78: if ((*s_etat_processus).affichage_arguments == 'Y')
79: {
80: printf("\n CIPHER ");
81:
82: if ((*s_etat_processus).langue == 'F')
83: {
84: printf("(opérations de chiffrement)\n\n");
85: }
86: else
87: {
88: printf("(cryptographic operations)\n\n");
89: }
90:
91: printf(" 2: \"password\"\n", d_CHN);
92: printf(" 1: { \"KEY\" \"cipher type\" \"digest type\" "
93: "salt nround }\n");
94: printf("-> 1: { \"cipher type\" \"generated key\" \"iv\" }\n\n");
95:
96: printf(" 2: \"text\"\n", d_CHN);
97: printf(" 1: { \"direction\" \"cipher type\" \"key\" \"iv\" }\n");
98: printf("-> 2: \"encrypted or decrypted text\"\n", d_CHN);
99: printf(" 1: { \"direction\" \"cipher type\" \"key\" "
100: "\"updated iv\" }\n\n", d_LST);
101:
102: if ((*s_etat_processus).langue == 'F')
103: {
104: printf(" Algorithmes de chiffrement :\n\n");
105: }
106: else
107: {
108: printf(" Chipher algorithms:\n\n");
109: }
110:
111: # ifndef OPENSSL_NO_AES
112: printf(" - AES-128-CBC\n");
113: printf(" - AES-128-CCM\n");
114: printf(" - AES-128-CFB1\n");
115: printf(" - AES-128-CFB8\n");
116: printf(" - AES-128-CFB128\n");
117: printf(" - AES-128-CTR\n");
118: printf(" - AES-128-ECB\n");
119: printf(" - AES-128-GCM\n");
120: printf(" - AES-128-OFB\n");
121: printf(" - AES-128-XTS\n");
122: printf(" - AES-192-CBC\n");
123: printf(" - AES-192-CCM\n");
124: printf(" - AES-192-CFB1\n");
125: printf(" - AES-192-CFB8\n");
126: printf(" - AES-192-CFB128\n");
127: printf(" - AES-192-CTR\n");
128: printf(" - AES-192-ECB\n");
129: printf(" - AES-192-GCM\n");
130: printf(" - AES-192-OFB\n");
131: printf(" - AES-256-CBC\n");
132: printf(" - AES-256-CCM\n");
133: printf(" - AES-256-CFB1\n");
134: printf(" - AES-256-CFB8\n");
135: printf(" - AES-256-CFB128\n");
136: printf(" - AES-256-CTR\n");
137: printf(" - AES-256-ECB\n");
138: printf(" - AES-256-GCM\n");
139: printf(" - AES-256-OFB\n");
140: printf(" - AES-256-XTS\n");
141: # endif
142:
143: # ifndef OPENSSL_NO_BF
144: printf(" - BF-CBC\n");
145: printf(" - BF-CFB64\n");
146: printf(" - BF-ECB\n");
147: printf(" - BF-OFB\n");
148: # endif
149:
150: # ifndef OPENSSL_NO_CAMELLIA
151: printf(" - CAMELLIA-128-CBC\n");
152: printf(" - CAMELLIA-128-CFB1\n");
153: printf(" - CAMELLIA-128-CFB8\n");
154: printf(" - CAMELLIA-128-CFB128\n");
155: printf(" - CAMELLIA-128-ECB\n");
156: printf(" - CAMELLIA-128-OFB\n");
157: printf(" - CAMELLIA-192-CBC\n");
158: printf(" - CAMELLIA-192-CFB1\n");
159: printf(" - CAMELLIA-192-CFB8\n");
160: printf(" - CAMELLIA-192-CFB128\n");
161: printf(" - CAMELLIA-192-ECB\n");
162: printf(" - CAMELLIA-192-OFB\n");
163: printf(" - CAMELLIA-256-CBC\n");
164: printf(" - CAMELLIA-256-CFB1\n");
165: printf(" - CAMELLIA-256-CFB8\n");
166: printf(" - CAMELLIA-256-CFB128\n");
167: printf(" - CAMELLIA-256-ECB\n");
168: printf(" - CAMELLIA-256-OFB\n");
169: # endif
170:
171: # ifndef OPENSSL_NO_CAST
172: printf(" - CAST5-CBC\n");
173: printf(" - CAST5-ECB\n");
174: printf(" - CAST5-CFB64\n");
175: printf(" - CAST5-OFB\n");
176: # endif
177:
178: # ifndef OPENSSL_NO_DES
179: printf(" - DES-CBC\n");
180: printf(" - DES-CFB1\n");
181: printf(" - DES-CFB8\n");
182: printf(" - DES-CFB64\n");
183: printf(" - DES-ECB\n");
184: printf(" - DES-EDE\n");
185: printf(" - DES-EDE-CBC\n");
186: printf(" - DES-EDE-CFB1\n");
187: printf(" - DES-EDE-CFB8\n");
188: printf(" - DES-EDE-CFB64\n");
189: printf(" - DES-EDE-ECB\n");
190: printf(" - DES-EDE-OFB\n");
191: printf(" - DES-EDE3\n");
192: printf(" - DES-EDE3-CBC\n");
193: printf(" - DES-EDE3-ECB\n");
194: printf(" - DES-EDE3-OFB\n");
195: printf(" - DES-OFB\n");
196: printf(" - DESX-CBC\n");
197: # endif
198:
199: # ifndef OPENSSL_NO_IDEA
200: printf(" - IDEA-CBC\n");
201: printf(" - IDEA-CFB64\n");
202: printf(" - IDEA-ECB\n");
203: printf(" - IDEA-OFB\n");
204: # endif
205:
206: # ifndef OPENSSL_NO_RC2
207: printf(" - RC2-CBC\n");
208: printf(" - RC2-CFB64\n");
209: printf(" - RC2-ECB\n");
210: printf(" - RC2-OFB\n");
211: printf(" - RC2-40-CBC\n");
212: printf(" - RC2-64-CBC\n");
213: # endif
214:
215: # ifndef OPENSSL_NO_RC4
216: printf(" - RC4\n");
217: printf(" - RC4-40\n");
218: # endif
219:
220: # ifndef OPENSSL_NO_RC5
221: printf(" - RC5-32-12-16-CBC\n");
222: printf(" - RC5-32-12-16-CFB64\n");
223: printf(" - RC5-32-12-16-ECB\n");
224: printf(" - RC5-32-12-16-OFB\n");
225: # endif
226:
227: # ifndef OPENSSL_NO_SEED
228: printf(" - SEED-CBC\n");
229: printf(" - SEED-CFB128\n");
230: printf(" - SEED-ECB\n");
231: printf(" - SEED-OFB\n");
232: # endif
233:
234: printf("\n");
235:
236: if ((*s_etat_processus).langue == 'F')
237: {
238: printf(" Algorithmes de signature :\n\n");
239: }
240: else
241: {
242: printf(" Digest algorithms:\n\n");
243: }
244:
245: # ifndef OPENSSL_NO_SHA
246: printf(" - DSS\n");
247: printf(" - DSS1\n");
248: printf(" - ECDSA\n");
249: # endif
250: # ifndef OPENSSL_NO_MD2
251: printf(" - MD2\n");
252: # endif
253: # ifndef OPENSSL_NO_MD4
254: printf(" - MD4\n");
255: # endif
256: # ifndef OPENSSL_NO_MD5
257: printf(" - MD5\n");
258: # endif
259: # ifndef OPENSSL_NO_MDC2
260: printf(" - MDC2\n");
261: # endif
262: # ifndef OPENSSL_NO_RIPEMD
263: printf(" - RIPEMD160\n");
264: # endif
265: # ifndef OPENSSL_NO_SHA
266: printf(" - SHA\n");
267: printf(" - SHA1\n");
268: # endif
269: # ifndef OPENSSL_NO_SHA256
270: printf(" - SHA224\n");
271: printf(" - SHA256\n");
272: # endif
273: # ifndef OPENSSL_NO_SHA512
274: printf(" - SHA384\n");
275: printf(" - SHA512\n");
276: # endif
277: # ifndef OPENSSL_NO_WHIRLPOOL
278: printf(" - WHIRLPOOL\n");
279: # endif
280:
281: printf("\n");
282:
283: if ((*s_etat_processus).langue == 'F')
284: {
285: printf(" Utilisation :\n\n");
286: }
287: else
288: {
289: printf(" Usage:\n\n");
290: }
291:
292: printf(" \"password\" { \"KEY\" \"DES-EDE-OFB\" \"SHA1\" "
293: "# 0h 3 } CIPHER\n");
294: printf(" \"text\" { \"ENCRYPT\" \"AES-128-CBC\" \"key\" "
295: "\"iv\" } CIPHER\n");
296: printf(" \"text\" { \"DECRYPT\" \"AES-128-EBC\" \"key\" "
297: "\"iv\" } CIPHER\n");
298: return;
299: }
300: else if ((*s_etat_processus).test_instruction == 'Y')
301: {
302: (*s_etat_processus).nombre_arguments = -1;
303: return;
304: }
305:
306: if (test_cfsf(s_etat_processus, 31) == d_vrai)
307: {
308: if (empilement_pile_last(s_etat_processus, 2) == d_erreur)
309: {
310: return;
311: }
312: }
313:
314: if (depilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
315: &s_objet_argument_1) == d_erreur)
316: {
317: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
318: return;
319: }
320:
321: if (depilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
322: &s_objet_argument_2) == d_erreur)
323: {
324: liberation(s_etat_processus, s_objet_argument_1);
325:
326: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
327: return;
328: }
329:
330: if (((*s_objet_argument_1).type == LST) &&
331: ((*s_objet_argument_2).type == CHN))
332: {
333: l_element_courant = (*s_objet_argument_1).objet;
334:
335: if (l_element_courant == NULL)
336: {
337: liberation(s_etat_processus, s_objet_argument_1);
338: liberation(s_etat_processus, s_objet_argument_2);
339:
340: (*s_etat_processus).erreur_execution = d_ex_argument_invalide;
341: return;
342: }
343:
344: if ((*(*l_element_courant).donnee).type != CHN)
345: {
346: liberation(s_etat_processus, s_objet_argument_1);
347: liberation(s_etat_processus, s_objet_argument_2);
348:
349: (*s_etat_processus).erreur_execution = d_ex_erreur_type_argument;
350: return;
351: }
352:
353: if ((instruction = conversion_majuscule(s_etat_processus,
354: (unsigned char *) (*(*l_element_courant).donnee).objet))
355: == NULL)
356: {
357: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
358: return;
359: }
360:
361: if (strcmp(instruction, "KEY") == 0)
362: {
363: // Dérivation d'une clef
364:
365: free(instruction);
366:
367: l_element_courant = (*l_element_courant).suivant;
368:
369: if (l_element_courant == NULL)
370: {
371: liberation(s_etat_processus, s_objet_argument_1);
372: liberation(s_etat_processus, s_objet_argument_2);
373:
374: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
375: return;
376: }
377:
378: // On attend l'algorithme de chiffrement.
379:
380: if ((*(*l_element_courant).donnee).type != CHN)
381: {
382: liberation(s_etat_processus, s_objet_argument_1);
383: liberation(s_etat_processus, s_objet_argument_2);
384:
385: (*s_etat_processus).erreur_execution =
386: d_ex_erreur_type_argument;
387: return;
388: }
389:
390: algorithme_chiffrement = (unsigned char *) (*(*l_element_courant)
391: .donnee).objet;
392:
393: if ((l_element_courant = (*l_element_courant).suivant) == NULL)
394: {
395: liberation(s_etat_processus, s_objet_argument_1);
396: liberation(s_etat_processus, s_objet_argument_2);
397:
398: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
399: return;
400: }
401:
402: // On attend la somme de contrôle.
403:
404: if ((*(*l_element_courant).donnee).type != CHN)
405: {
406: liberation(s_etat_processus, s_objet_argument_1);
407: liberation(s_etat_processus, s_objet_argument_2);
408:
409: (*s_etat_processus).erreur_execution =
410: d_ex_erreur_type_argument;
411: return;
412: }
413:
414: controle = (unsigned char *) (*(*l_element_courant).donnee).objet;
415:
416: // Test de la validité de la somme de contrôle.
417:
418: if ((fonction = conversion_majuscule(s_etat_processus, controle))
419: == NULL)
420: {
421: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
422: return;
423: }
424:
425: somme_invalide = d_faux;
426:
427: switch(fonction[0])
428: {
429: case 'D':
430: {
431: switch(fonction[1])
432: {
433: case 'S': // ds
434: {
435: switch(fonction[2])
436: {
437: # ifndef OPENSSL_NO_SHA
438: case 'S': // dss
439: {
440: switch(fonction[3])
441: {
442: case d_code_fin_chaine:
443: {
444: EVP_sum = EVP_dss();
445: break;
446: }
447:
448: case '1': // dss1
449: {
450: if (fonction[4] ==
451: d_code_fin_chaine)
452: {
453: EVP_sum = EVP_dss1();
454: }
455: else
456: {
457: somme_invalide = d_vrai;
458: }
459:
460: break;
461: }
462:
463: default:
464: {
465: somme_invalide = d_vrai;
466: break;
467: }
468: }
469:
470: break;
471: }
472: # endif
473:
474: default:
475: {
476: somme_invalide = d_vrai;
477: break;
478: }
479: }
480:
481: break;
482: }
483:
484: default:
485: {
486: somme_invalide = d_vrai;
487: break;
488: }
489: }
490:
491: break;
492: }
493:
494: case 'E':
495: {
496: switch(fonction[1])
497: {
498: case 'C': // ec
499: {
500: switch(fonction[2])
501: {
502: case 'D': // ecd
503: {
504: switch(fonction[3])
505: {
506: case 'S': // ecds
507: {
508: switch(fonction[4])
509: {
510: # ifndef OPENSSL_NO_SHA
511: case 'A': // ecdsa
512: {
513: if (fonction[5] ==
514: d_code_fin_chaine)
515: {
516: EVP_sum = EVP_ecdsa();
517: }
518: else
519: {
520: somme_invalide = d_vrai;
521: }
522:
523: break;
524: }
525: # endif
526:
527: default:
528: {
529: somme_invalide = d_vrai;
530: break;
531: }
532: }
533:
534: break;
535: }
536:
537: default:
538: {
539: somme_invalide = d_vrai;
540: break;
541: }
542: }
543:
544: break;
545: }
546:
547: default:
548: {
549: somme_invalide = d_vrai;
550: break;
551: }
552: }
553:
554: break;
555: }
556:
557: default:
558: {
559: somme_invalide = d_vrai;
560: break;
561: }
562: }
563:
564: break;
565: }
566:
567: case 'M':
568: {
569: switch(fonction[1])
570: {
571: case 'D': // md
572: {
573: switch(fonction[2])
574: {
575: # ifndef OPENSSL_NO_MD2
576: case '2': // md2
577: {
578: if (fonction[3] == d_code_fin_chaine)
579: {
580: EVP_sum = EVP_md2();
581: }
582: else
583: {
584: somme_invalide = d_vrai;
585: }
586:
587: break;
588: }
589: # endif
590:
591: # ifndef OPENSSL_NO_MD4
592: case '4': // md4
593: {
594: if (fonction[3] == d_code_fin_chaine)
595: {
596: EVP_sum = EVP_md4();
597: }
598: else
599: {
600: somme_invalide = d_vrai;
601: }
602:
603: break;
604: }
605: # endif
606:
607: # ifndef OPENSSL_NO_MD5
608: case '5': // md5
609: {
610: if (fonction[3] == d_code_fin_chaine)
611: {
612: EVP_sum = EVP_md5();
613: }
614: else
615: {
616: somme_invalide = d_vrai;
617: }
618:
619: break;
620: }
621: # endif
622:
623: case 'C': // mdc
624: {
625: switch(fonction[3])
626: {
627: # ifndef OPENSSL_NO_MDC2
628: case '2': // mdc2
629: {
630: if (fonction[4] ==
631: d_code_fin_chaine)
632: {
633: EVP_sum = EVP_mdc2();
634: }
635: else
636: {
637: somme_invalide = d_vrai;
638: }
639:
640: break;
641: }
642: # endif
643:
644: default:
645: {
646: somme_invalide = d_vrai;
647: break;
648: }
649: }
650:
651: break;
652: }
653:
654: default:
655: {
656: somme_invalide = d_vrai;
657: break;
658: }
659: }
660:
661: break;
662: }
663:
664: default:
665: {
666: somme_invalide = d_vrai;
667: break;
668: }
669: }
670:
671: break;
672: }
673:
674: # ifndef OPENSSL_NO_RIPEMD
675: case 'R':
676: {
677: if (strcmp(fonction, "RIPEMD160") == 0)
678: {
679: EVP_sum = EVP_ripemd160();
680: }
681: else
682: {
683: somme_invalide = d_vrai;
684: }
685:
686: break;
687: }
688: # endif
689:
690: case 'S':
691: {
692: switch(fonction[1])
693: {
694: case 'H': // sh
695: {
696: switch(fonction[2])
697: {
698: # ifndef OPENSSL_NO_SHA
699: case 'A':
700: {
701: switch(fonction[3])
702: {
703: case d_code_fin_chaine:
704: {
705: EVP_sum = EVP_sha();
706: break;
707: }
708:
709: case '1': // sha1
710: {
711: if (fonction[4] ==
712: d_code_fin_chaine)
713: {
714: EVP_sum = EVP_sha1();
715: }
716: else
717: {
718: somme_invalide = d_vrai;
719: }
720:
721: break;
722: }
723:
724: # ifndef OPENSSL_NO_SHA256
725: case '2': // sha2
726: {
727: switch(fonction[4])
728: {
729: case '2': // sha22
730: {
731: switch(fonction[5])
732: {
733: case '4': // sha224
734: {
735: if (fonction[6] ==
736: d_code_fin_chaine)
737: {
738: EVP_sum =
739: EVP_sha224();
740: }
741: else
742: {
743: somme_invalide =
744: d_vrai;
745: }
746:
747: break;
748: }
749:
750: default:
751: {
752: somme_invalide =
753: d_vrai;
754: break;
755: }
756: }
757:
758: break;
759: }
760:
761: case '5':
762: {
763: switch(fonction[5])
764: {
765: case '6': // sha256
766: {
767: if (fonction[6] ==
768: d_code_fin_chaine)
769: {
770: EVP_sum =
771: EVP_sha256();
772: }
773: else
774: {
775: somme_invalide =
776: d_vrai;
777: }
778:
779: break;
780: }
781:
782: default:
783: {
784: somme_invalide =
785: d_vrai;
786: break;
787: }
788: }
789:
790: break;
791: }
792:
793: default:
794: {
795: somme_invalide = d_vrai;
796: break;
797: }
798: }
799:
800: break;
801: }
802: # endif
803:
804: # ifndef OPENSSL_NO_SHA512
805: case '3': // sha3
806: {
807: switch(fonction[4])
808: {
809: case '8': // sha38
810: {
811: switch(fonction[5])
812: {
813: case '4': // sha384
814: {
815: if (fonction[6] ==
816: d_code_fin_chaine)
817: {
818: EVP_sum =
819: EVP_sha384();
820: }
821: else
822: {
823: somme_invalide =
824: d_vrai;
825: }
826:
827: break;
828: }
829:
830: default:
831: {
832: somme_invalide =
833: d_vrai;
834: break;
835: }
836: }
837:
838: break;
839: }
840:
841: default:
842: {
843: somme_invalide = d_vrai;
844: break;
845: }
846: }
847:
848: break;
849: }
850:
851: case '5': // sha5
852: {
853: switch(fonction[4])
854: {
855: case '1': // sha51
856: {
857: switch(fonction[5])
858: {
859: case '2': // sha512
860: {
861: if (fonction[6] ==
862: d_code_fin_chaine)
863: {
864: EVP_sum =
865: EVP_sha512();
866: }
867: else
868: {
869: somme_invalide =
870: d_vrai;
871: }
872:
873: break;
874: }
875:
876: default:
877: {
878: somme_invalide =
879: d_vrai;
880: break;
881: }
882: }
883:
884: break;
885: }
886:
887: default:
888: {
889: somme_invalide = d_vrai;
890: break;
891: }
892: }
893:
894: break;
895: }
896: # endif
897:
898: default:
899: {
900: somme_invalide = d_vrai;
901: break;
902: }
903: }
904:
905: break;
906: }
907: # endif
908:
909: default:
910: {
911: somme_invalide = d_vrai;
912: break;
913: }
914: }
915:
916: break;
917: }
918:
919: default:
920: {
921: somme_invalide = d_vrai;
922: break;
923: }
924: }
925:
926: break;
927: }
928:
929: # ifndef OPENSSL_NO_WHIRLPOOL
930: case 'W':
931: {
932: if (strcmp(fonction, "WHIRLPOOL") == 0)
933: {
934: EVP_sum = EVP_whirlpool();
935: }
936: else
937: {
938: somme_invalide = d_vrai;
939: }
940:
941: break;
942: }
943: # endif
944:
945: default:
946: {
947: somme_invalide = d_vrai;
948: break;
949: }
950: }
951:
952: free(fonction);
953:
954: if (somme_invalide == d_vrai)
955: {
956: liberation(s_etat_processus, s_objet_argument_1);
957: liberation(s_etat_processus, s_objet_argument_2);
958:
959: (*s_etat_processus).erreur_execution =
960: d_ex_chiffrement_indisponible;
961: return;
962: }
963:
964: if ((l_element_courant = (*l_element_courant).suivant) == NULL)
965: {
966: liberation(s_etat_processus, s_objet_argument_1);
967: liberation(s_etat_processus, s_objet_argument_2);
968:
969: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
970: return;
971: }
972:
973: // On attend le sel, donc un entier binaire de 64 bits.
974:
975: if ((*(*l_element_courant).donnee).type != BIN)
976: {
977: liberation(s_etat_processus, s_objet_argument_1);
978: liberation(s_etat_processus, s_objet_argument_2);
979:
980: (*s_etat_processus).erreur_execution =
981: d_ex_erreur_type_argument;
982: return;
983: }
984:
985: sel = (*((logical8 *) (*(*l_element_courant).donnee).objet));
986:
987: if ((l_element_courant = (*l_element_courant).suivant) == NULL)
988: {
989: liberation(s_etat_processus, s_objet_argument_1);
990: liberation(s_etat_processus, s_objet_argument_2);
991:
992: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
993: return;
994: }
995:
996: // On attend le nombre de cycles.
997:
998: if ((*(*l_element_courant).donnee).type != INT)
999: {
1000: liberation(s_etat_processus, s_objet_argument_1);
1001: liberation(s_etat_processus, s_objet_argument_2);
1002:
1003: (*s_etat_processus).erreur_execution =
1004: d_ex_erreur_type_argument;
1005: return;
1006: }
1007:
1008: nombre_cycles = (*((integer8 *) (*(*l_element_courant)
1009: .donnee).objet));
1010:
1011: // On a dû atteindre la fin de la liste.
1012:
1013: if ((*l_element_courant).suivant != NULL)
1014: {
1015: liberation(s_etat_processus, s_objet_argument_1);
1016: liberation(s_etat_processus, s_objet_argument_2);
1017:
1018: (*s_etat_processus).erreur_execution = d_ex_argument_invalide;
1019: return;
1020: }
1021:
1022: clef = NULL;
1023: iv = NULL;
1024:
1025: generation_clef = d_vrai;
1026: }
1027: else
1028: {
1029: // Chiffrement ou déchiffrement d'un message
1030:
1031: direction = instruction;
1032:
1033: l_element_courant = (*l_element_courant).suivant;
1034:
1035: if (l_element_courant == NULL)
1036: {
1037: liberation(s_etat_processus, s_objet_argument_1);
1038: liberation(s_etat_processus, s_objet_argument_2);
1039:
1040: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
1041: return;
1042: }
1043:
1044: // On attend le type de chiffrement.
1045:
1046: if ((*(*l_element_courant).donnee).type != CHN)
1047: {
1048: liberation(s_etat_processus, s_objet_argument_1);
1049: liberation(s_etat_processus, s_objet_argument_2);
1050:
1051: (*s_etat_processus).erreur_execution =
1052: d_ex_erreur_type_argument;
1053: return;
1054: }
1055:
1056: algorithme_chiffrement = (unsigned char *) (*(*l_element_courant)
1057: .donnee).objet;
1058:
1059: // On attend la clef.
1060:
1061: if ((l_element_courant = (*l_element_courant).suivant) == NULL)
1062: {
1063: liberation(s_etat_processus, s_objet_argument_1);
1064: liberation(s_etat_processus, s_objet_argument_2);
1065:
1066: (*s_etat_processus).erreur_execution =
1067: d_ex_manque_argument;
1068: return;
1069: }
1070:
1071: clef = (unsigned char *) (*(*l_element_courant).donnee).objet;
1072:
1073: // On attend le vecteur d'initialisation.
1074:
1075: if ((l_element_courant = (*l_element_courant).suivant) == NULL)
1076: {
1077: liberation(s_etat_processus, s_objet_argument_1);
1078: liberation(s_etat_processus, s_objet_argument_2);
1079:
1080: (*s_etat_processus).erreur_execution =
1081: d_ex_manque_argument;
1082: return;
1083: }
1084:
1085: iv = (unsigned char *) (*(*l_element_courant).donnee).objet;
1086:
1087: if ((*l_element_courant).suivant != NULL)
1088: {
1089: liberation(s_etat_processus, s_objet_argument_1);
1090: liberation(s_etat_processus, s_objet_argument_2);
1091:
1092: (*s_etat_processus).erreur_execution = d_ex_argument_invalide;
1093: return;
1094: }
1095:
1096: generation_clef = d_faux;
1097: }
1098: }
1099: else
1100: {
1101: liberation(s_etat_processus, s_objet_argument_1);
1102: liberation(s_etat_processus, s_objet_argument_2);
1103:
1104: (*s_etat_processus).erreur_execution = d_ex_erreur_type_argument;
1105: return;
1106: }
1107:
1108: if ((tampon = conversion_majuscule(s_etat_processus,
1109: algorithme_chiffrement)) == NULL)
1110: {
1111: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
1112: return;
1113: }
1114:
1115: # define TEST_CIPHER(string, value) \
1116: if (strcmp(tampon, string) == 0) EVP_chiffrement = value();
1117:
1118: if (strncmp(tampon, "DES", 3) == 0)
1119: {
1120: # ifndef OPENSSL_NO_DES
1121: TEST_CIPHER("DES-ECB", EVP_des_ecb)
1122: else TEST_CIPHER("DES-EDE", EVP_des_ede)
1123: else TEST_CIPHER("DES-EDE3", EVP_des_ede3)
1124: else TEST_CIPHER("DES-EDE-ECB", EVP_des_ede_ecb)
1125: else TEST_CIPHER("DES-EDE3-ECB", EVP_des_ede3_ecb)
1126: else TEST_CIPHER("DES-CFB64", EVP_des_cfb64)
1127: else TEST_CIPHER("DES-CFB1", EVP_des_cfb1)
1128: else TEST_CIPHER("DES-CFB8", EVP_des_cfb8)
1129: else TEST_CIPHER("DES-EDE-CFB64", EVP_des_ede_cfb64)
1130: else TEST_CIPHER("DES-EDE3-CFB64", EVP_des_ede3_cfb64)
1131: else TEST_CIPHER("DES-EDE3-CFB1", EVP_des_ede3_cfb1)
1132: else TEST_CIPHER("DES-EDE3-CFB8", EVP_des_ede3_cfb8)
1133: else TEST_CIPHER("DES-OFB", EVP_des_ofb)
1134: else TEST_CIPHER("DES-EDE-OFB", EVP_des_ede_ofb)
1135: else TEST_CIPHER("DES-EDE3-OFB", EVP_des_ede3_ofb)
1136: else TEST_CIPHER("DES-CBC", EVP_des_cbc)
1137: else TEST_CIPHER("DES-EDE-CBC", EVP_des_ede_cbc)
1138: else TEST_CIPHER("DES-EDE3-CBC", EVP_des_ede3_cbc)
1139: else TEST_CIPHER("DESX-CBC", EVP_desx_cbc)
1140: else
1141: {
1142: free(tampon);
1143:
1144: liberation(s_etat_processus, s_objet_argument_1);
1145: liberation(s_etat_processus, s_objet_argument_2);
1146:
1147: (*s_etat_processus).erreur_execution =
1148: d_ex_chiffrement_indisponible;
1149: return;
1150: }
1151: # else
1152: free(tampon);
1153:
1154: liberation(s_etat_processus, s_objet_argument_1);
1155: liberation(s_etat_processus, s_objet_argument_2);
1156:
1157: (*s_etat_processus).erreur_execution =
1158: d_ex_chiffrement_indisponible;
1159: return;
1160: # endif
1161: }
1162: else if (strncmp(tampon, "RC4", 3) == 0)
1163: {
1164: # ifndef OPENSSL_NO_RC4
1165: TEST_CIPHER("RC4", EVP_rc4)
1166: else TEST_CIPHER("RC4-40", EVP_rc4_40)
1167: else
1168: {
1169: free(tampon);
1170:
1171: liberation(s_etat_processus, s_objet_argument_1);
1172: liberation(s_etat_processus, s_objet_argument_2);
1173:
1174: (*s_etat_processus).erreur_execution =
1175: d_ex_chiffrement_indisponible;
1176: return;
1177: }
1178: # else
1179: free(tampon);
1180:
1181: liberation(s_etat_processus, s_objet_argument_1);
1182: liberation(s_etat_processus, s_objet_argument_2);
1183:
1184: (*s_etat_processus).erreur_execution =
1185: d_ex_chiffrement_indisponible;
1186: return;
1187: # endif
1188: }
1189: else if (strncmp(tampon, "IDEA", 4) == 0)
1190: {
1191: # ifndef OPENSSL_NO_IDEA
1192: TEST_CIPHER("IDEA-ECB", EVP_idea_ecb)
1193: else TEST_CIPHER("IDEA-CFB64", EVP_idea_cfb64)
1194: else TEST_CIPHER("IDEA-OFB", EVP_idea_ofb)
1195: else TEST_CIPHER("IDEA-CBC", EVP_idea_cbc)
1196: else
1197: {
1198: free(tampon);
1199:
1200: liberation(s_etat_processus, s_objet_argument_1);
1201: liberation(s_etat_processus, s_objet_argument_2);
1202:
1203: (*s_etat_processus).erreur_execution =
1204: d_ex_chiffrement_indisponible;
1205: return;
1206: }
1207: # else
1208: free(tampon);
1209:
1210: liberation(s_etat_processus, s_objet_argument_1);
1211: liberation(s_etat_processus, s_objet_argument_2);
1212:
1213: (*s_etat_processus).erreur_execution =
1214: d_ex_chiffrement_indisponible;
1215: return;
1216: # endif
1217: }
1218: else if (strncmp(tampon, "RC2", 3) == 0)
1219: {
1220: # ifndef OPENSSL_NO_RC2
1221: TEST_CIPHER("RC2-ECB", EVP_rc2_ecb)
1222: else TEST_CIPHER("RC2-CBC", EVP_rc2_cbc)
1223: else TEST_CIPHER("RC2-40-CBC", EVP_rc2_40_cbc)
1224: else TEST_CIPHER("RC2-64-CBC", EVP_rc2_64_cbc)
1225: else TEST_CIPHER("RC2-CFB64", EVP_rc2_cfb64)
1226: else TEST_CIPHER("RC2-OFB", EVP_rc2_ofb)
1227: else
1228: {
1229: free(tampon);
1230:
1231: liberation(s_etat_processus, s_objet_argument_1);
1232: liberation(s_etat_processus, s_objet_argument_2);
1233:
1234: (*s_etat_processus).erreur_execution =
1235: d_ex_chiffrement_indisponible;
1236: return;
1237: }
1238: # else
1239: free(tampon);
1240:
1241: liberation(s_etat_processus, s_objet_argument_1);
1242: liberation(s_etat_processus, s_objet_argument_2);
1243:
1244: (*s_etat_processus).erreur_execution =
1245: d_ex_chiffrement_indisponible;
1246: return;
1247: # endif
1248: }
1249: else if (strncmp(tampon, "BF", 2) == 0)
1250: {
1251: # ifndef OPENSSL_NO_BF
1252: TEST_CIPHER("BF-ECB", EVP_bf_ecb)
1253: else TEST_CIPHER("BF-CBC", EVP_bf_cbc)
1254: else TEST_CIPHER("BF-CFB64", EVP_bf_cfb64)
1255: else TEST_CIPHER("BF-OFB", EVP_bf_ofb)
1256: else
1257: {
1258: free(tampon);
1259:
1260: liberation(s_etat_processus, s_objet_argument_1);
1261: liberation(s_etat_processus, s_objet_argument_2);
1262:
1263: (*s_etat_processus).erreur_execution =
1264: d_ex_chiffrement_indisponible;
1265: return;
1266: }
1267: # else
1268: free(tampon);
1269:
1270: liberation(s_etat_processus, s_objet_argument_1);
1271: liberation(s_etat_processus, s_objet_argument_2);
1272:
1273: (*s_etat_processus).erreur_execution =
1274: d_ex_chiffrement_indisponible;
1275: return;
1276: # endif
1277: }
1278: else if (strncmp(tampon, "CAST5", 5) == 0)
1279: {
1280: # ifndef OPENSSL_NO_CAST
1281: TEST_CIPHER("CAST5-ECB", EVP_cast5_ecb)
1282: else TEST_CIPHER("CAST5-CBC", EVP_cast5_cbc)
1283: else TEST_CIPHER("CAST5-CFB64", EVP_cast5_cfb64)
1284: else TEST_CIPHER("CAST5-OFB", EVP_cast5_ofb)
1285: else
1286: {
1287: free(tampon);
1288:
1289: liberation(s_etat_processus, s_objet_argument_1);
1290: liberation(s_etat_processus, s_objet_argument_2);
1291:
1292: (*s_etat_processus).erreur_execution =
1293: d_ex_chiffrement_indisponible;
1294: return;
1295: }
1296: # else
1297: free(tampon);
1298:
1299: liberation(s_etat_processus, s_objet_argument_1);
1300: liberation(s_etat_processus, s_objet_argument_2);
1301:
1302: (*s_etat_processus).erreur_execution =
1303: d_ex_chiffrement_indisponible;
1304: return;
1305: # endif
1306: }
1307: else if (strncmp(tampon, "RC5", 3) == 0)
1308: {
1309: # ifndef OPENSSL_NO_RC5
1310: TEST_CIPHER("RC5-32-12-16-ECB", EVP_rc5_32_12_16_ebc)
1311: else TEST_CIPHER("RC5-32-12-16-CBC", EVP_rc5_32_12_16_cbc)
1312: else TEST_CIPHER("RC5-32-12-16-CFB64", EVP_rc5_32_12_16_cfb64)
1313: else TEST_CIPHER("RC5-32-12-16-OFB", EVP_rc5_32_12_16_ofb)
1314: else
1315: {
1316: free(tampon);
1317:
1318: liberation(s_etat_processus, s_objet_argument_1);
1319: liberation(s_etat_processus, s_objet_argument_2);
1320:
1321: (*s_etat_processus).erreur_execution =
1322: d_ex_chiffrement_indisponible;
1323: return;
1324: }
1325: # else
1326: free(tampon);
1327:
1328: liberation(s_etat_processus, s_objet_argument_1);
1329: liberation(s_etat_processus, s_objet_argument_2);
1330:
1331: (*s_etat_processus).erreur_execution =
1332: d_ex_chiffrement_indisponible;
1333: return;
1334: # endif
1335: }
1336: else if (strncmp(tampon, "AES", 3) == 0)
1337: {
1338: # ifndef OPENSSL_NO_AES
1339: TEST_CIPHER("AES-128-ECB", EVP_aes_128_ecb)
1340: else TEST_CIPHER("AES-128-CBC", EVP_aes_128_cbc)
1341: else TEST_CIPHER("AES-128-CFB1", EVP_aes_128_cfb1)
1342: else TEST_CIPHER("AES-128-CFB8", EVP_aes_128_cfb8)
1343: else TEST_CIPHER("AES-128-CFB128", EVP_aes_128_cfb128)
1344: else TEST_CIPHER("AES-128-OFB", EVP_aes_128_ofb)
1345: else TEST_CIPHER("AES-128-CTR", EVP_aes_128_ctr)
1346: else TEST_CIPHER("AES-128-CCM", EVP_aes_128_ccm)
1347: else TEST_CIPHER("AES-128-GCM", EVP_aes_128_gcm)
1348: else TEST_CIPHER("AES-128-XTS", EVP_aes_128_xts)
1349: else TEST_CIPHER("AES-192-ECB", EVP_aes_192_ecb)
1350: else TEST_CIPHER("AES-192-CBC", EVP_aes_192_cbc)
1351: else TEST_CIPHER("AES-192-CFB1", EVP_aes_192_cfb1)
1352: else TEST_CIPHER("AES-192-CFB8", EVP_aes_192_cfb8)
1353: else TEST_CIPHER("AES-192-CFB128", EVP_aes_192_cfb128)
1354: else TEST_CIPHER("AES-192-OFB", EVP_aes_192_ofb)
1355: else TEST_CIPHER("AES-192-CTR", EVP_aes_192_ctr)
1356: else TEST_CIPHER("AES-192-CCM", EVP_aes_192_ccm)
1357: else TEST_CIPHER("AES-192-GCM", EVP_aes_192_gcm)
1358: else TEST_CIPHER("AES-256-ECB", EVP_aes_256_ecb)
1359: else TEST_CIPHER("AES-256-CBC", EVP_aes_256_cbc)
1360: else TEST_CIPHER("AES-256-CFB1", EVP_aes_256_cfb1)
1361: else TEST_CIPHER("AES-256-CFB8", EVP_aes_256_cfb8)
1362: else TEST_CIPHER("AES-256-CFB128", EVP_aes_256_cfb128)
1363: else TEST_CIPHER("AES-256-OFB", EVP_aes_256_ofb)
1364: else TEST_CIPHER("AES-256-CTR", EVP_aes_256_ctr)
1365: else TEST_CIPHER("AES-256-CCM", EVP_aes_256_ccm)
1366: else TEST_CIPHER("AES-256-GCM", EVP_aes_256_gcm)
1367: else TEST_CIPHER("AES-256-XTS", EVP_aes_256_xts)
1368: else
1369: {
1370: free(tampon);
1371:
1372: liberation(s_etat_processus, s_objet_argument_1);
1373: liberation(s_etat_processus, s_objet_argument_2);
1374:
1375: (*s_etat_processus).erreur_execution =
1376: d_ex_chiffrement_indisponible;
1377: return;
1378: }
1379: # else
1380: free(tampon);
1381:
1382: liberation(s_etat_processus, s_objet_argument_1);
1383: liberation(s_etat_processus, s_objet_argument_2);
1384:
1385: (*s_etat_processus).erreur_execution =
1386: d_ex_chiffrement_indisponible;
1387: return;
1388: # endif
1389: }
1390: else if (strncmp(tampon, "CAMELLIA", 8) == 0)
1391: {
1392: # ifndef OPENSSL_NO_CAMELLIA
1393: TEST_CIPHER("CAMELLIA-128-ECB", EVP_camellia_128_ecb)
1394: else TEST_CIPHER("CAMELLIA-128-CBC", EVP_camellia_128_cbc)
1395: else TEST_CIPHER("CAMELLIA-128-CFB1", EVP_camellia_128_cfb1)
1396: else TEST_CIPHER("CAMELLIA-128-CFB8", EVP_camellia_128_cfb8)
1397: else TEST_CIPHER("CAMELLIA-128-CFB128", EVP_camellia_128_cfb128)
1398: else TEST_CIPHER("CAMELLIA-128-OFB", EVP_camellia_128_ofb)
1399: else TEST_CIPHER("CAMELLIA-192-ECB", EVP_camellia_128_ecb)
1400: else TEST_CIPHER("CAMELLIA-192-CBC", EVP_camellia_192_cbc)
1401: else TEST_CIPHER("CAMELLIA-192-CFB1", EVP_camellia_192_cfb1)
1402: else TEST_CIPHER("CAMELLIA-192-CFB8", EVP_camellia_192_cfb8)
1403: else TEST_CIPHER("CAMELLIA-192-CFB128", EVP_camellia_192_cfb128)
1404: else TEST_CIPHER("CAMELLIA-192-OFB", EVP_camellia_192_ofb)
1405: else TEST_CIPHER("CAMELLIA-256-ECB", EVP_camellia_256_ecb)
1406: else TEST_CIPHER("CAMELLIA-256-CBC", EVP_camellia_256_cbc)
1407: else TEST_CIPHER("CAMELLIA-256-CFB1", EVP_camellia_256_cfb1)
1408: else TEST_CIPHER("CAMELLIA-256-CFB8", EVP_camellia_256_cfb8)
1409: else TEST_CIPHER("CAMELLIA-256-CFB128", EVP_camellia_256_cfb128)
1410: else TEST_CIPHER("CAMELLIA-256-OFB", EVP_camellia_256_ofb)
1411: else
1412: {
1413: free(tampon);
1414:
1415: liberation(s_etat_processus, s_objet_argument_1);
1416: liberation(s_etat_processus, s_objet_argument_2);
1417:
1418: (*s_etat_processus).erreur_execution =
1419: d_ex_chiffrement_indisponible;
1420: return;
1421: }
1422: # else
1423: free(tampon);
1424:
1425: liberation(s_etat_processus, s_objet_argument_1);
1426: liberation(s_etat_processus, s_objet_argument_2);
1427:
1428: (*s_etat_processus).erreur_execution =
1429: d_ex_chiffrement_indisponible;
1430: return;
1431: # endif
1432: }
1433: else if (strncmp(tampon, "SEED", 4) == 0)
1434: {
1435: # ifndef OPENSSL_NO_SEED
1436: TEST_CIPHER("SEED-ECB", EVP_seed_ecb)
1437: else TEST_CIPHER("SEED-CBC", EVP_seed_cbc)
1438: else TEST_CIPHER("SEED-CFB128", EVP_seed_cfb128)
1439: else TEST_CIPHER("SEED-OFB", EVP_seed_ofb)
1440: else
1441: {
1442: free(tampon);
1443:
1444: liberation(s_etat_processus, s_objet_argument_1);
1445: liberation(s_etat_processus, s_objet_argument_2);
1446:
1447: (*s_etat_processus).erreur_execution =
1448: d_ex_chiffrement_indisponible;
1449: return;
1450: }
1451: # else
1452: free(tampon);
1453:
1454: liberation(s_etat_processus, s_objet_argument_1);
1455: liberation(s_etat_processus, s_objet_argument_2);
1456:
1457: (*s_etat_processus).erreur_execution =
1458: d_ex_chiffrement_indisponible;
1459: return;
1460: # endif
1461: }
1462: else
1463: {
1464: free(tampon);
1465:
1466: liberation(s_etat_processus, s_objet_argument_1);
1467: liberation(s_etat_processus, s_objet_argument_2);
1468:
1469: (*s_etat_processus).erreur_execution = d_ex_chiffrement_indisponible;
1470: return;
1471: }
1472:
1473: free(tampon);
1474:
1475: if (generation_clef == d_vrai)
1476: {
1477: if ((iv = malloc(((size_t) EVP_CIPHER_iv_length(EVP_chiffrement))
1478: * sizeof(unsigned char))) == NULL)
1479: {
1480: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
1481: return;
1482: }
1483:
1484: if ((clef = malloc(((size_t) EVP_CIPHER_key_length(EVP_chiffrement))
1485: * sizeof(unsigned char))) == NULL)
1486: {
1487: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
1488: return;
1489: }
1490:
1491: longueur_clef = EVP_BytesToKey(EVP_chiffrement, EVP_sum,
1492: (unsigned char *) &sel, (unsigned char *)
1493: (*s_objet_argument_2).objet,
1494: (int) longueur_chaine(s_etat_processus,
1495: (unsigned char *) (*s_objet_argument_2).objet),
1496: (int) nombre_cycles, clef, iv);
1497:
1498: if (longueur_clef != EVP_CIPHER_key_length(EVP_chiffrement))
1499: {
1500: free(iv);
1501: free(clef);
1502:
1503: liberation(s_etat_processus, s_objet_argument_1);
1504: liberation(s_etat_processus, s_objet_argument_2);
1505:
1506: (*s_etat_processus).erreur_execution = d_ex_chiffrement;
1507: return;
1508: }
1509:
1510: if ((s_objet_resultat_1 = allocation(s_etat_processus, LST)) == NULL)
1511: {
1512: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
1513: return;
1514: }
1515:
1516: if (((*s_objet_resultat_1).objet = allocation_maillon(s_etat_processus))
1517: == NULL)
1518: {
1519: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
1520: return;
1521: }
1522:
1523: l_element_courant = (*s_objet_resultat_1).objet;
1524:
1525: if (((*l_element_courant).donnee = allocation(s_etat_processus, CHN))
1526: == NULL)
1527: {
1528: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
1529: return;
1530: }
1531:
1532: if (((*(*l_element_courant).donnee).objet = malloc(
1533: (strlen(algorithme_chiffrement) + 1) * sizeof(unsigned char)))
1534: == NULL)
1535: {
1536: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
1537: return;
1538: }
1539:
1540: strcpy((*(*l_element_courant).donnee).objet, algorithme_chiffrement);
1541:
1542: if (((*l_element_courant).suivant = allocation_maillon(
1543: s_etat_processus)) == NULL)
1544: {
1545: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
1546: return;
1547: }
1548:
1549: l_element_courant = (*l_element_courant).suivant;
1550:
1551: if (((*l_element_courant).donnee = allocation(s_etat_processus, CHN))
1552: == NULL)
1553: {
1554: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
1555: return;
1556: }
1557:
1558: if (((*(*l_element_courant).donnee).objet = analyse_flux(
1559: s_etat_processus, clef,
1560: EVP_CIPHER_key_length(EVP_chiffrement))) == NULL)
1561: {
1562: return;
1563: }
1564:
1565: free(clef);
1566:
1567: if (((*l_element_courant).suivant = allocation_maillon(
1568: s_etat_processus)) == NULL)
1569: {
1570: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
1571: return;
1572: }
1573:
1574: l_element_courant = (*l_element_courant).suivant;
1575: (*l_element_courant).suivant = NULL;
1576:
1577: if (((*l_element_courant).donnee = allocation(s_etat_processus, CHN))
1578: == NULL)
1579: {
1580: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
1581: return;
1582: }
1583:
1584: if (((*(*l_element_courant).donnee).objet = analyse_flux(
1585: s_etat_processus, iv,
1586: EVP_CIPHER_iv_length(EVP_chiffrement))) == NULL)
1587: {
1588: return;
1589: }
1590:
1591: free(iv);
1592:
1593: liberation(s_etat_processus, s_objet_argument_1);
1594: liberation(s_etat_processus, s_objet_argument_2);
1595:
1596: if (empilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
1597: s_objet_resultat_1) == d_erreur)
1598: {
1599: return;
1600: }
1601: }
1602: else
1603: {
1604: // Chiffrement ou déchiffrement
1605:
1606: if (strcmp(direction, "ENCRYPT") == 0)
1607: {
1608: encodage = d_vrai;
1609: }
1610: else if (strcmp(direction, "DECRYPT") == 0)
1611: {
1612: encodage = d_faux;
1613: }
1614: else
1615: {
1616: free(direction);
1617: liberation(s_etat_processus, s_objet_argument_1);
1618: liberation(s_etat_processus, s_objet_argument_2);
1619:
1620: (*s_etat_processus).erreur_execution =
1621: d_ex_argument_invalide;
1622: return;
1623: }
1624:
1625: free(direction);
1626:
1627: // Conversion des clefs
1628:
1629: if ((clef_binaire = formateur_flux(s_etat_processus, clef,
1630: &longueur_clef_binaire)) == NULL)
1631: {
1632: return;
1633: }
1634:
1635: if ((iv_binaire = formateur_flux(s_etat_processus, iv,
1636: &longueur_iv_binaire)) == NULL)
1637: {
1638: return;
1639: }
1640:
1641: // Vérification de la longueur des clef et vecteur d'initialisation
1642:
1643: if (longueur_clef_binaire != EVP_CIPHER_key_length(EVP_chiffrement))
1644: {
1645: free(clef_binaire);
1646: free(iv_binaire);
1647:
1648: liberation(s_etat_processus, s_objet_argument_1);
1649: liberation(s_etat_processus, s_objet_argument_2);
1650:
1651: (*s_etat_processus).erreur_execution =
1652: d_ex_longueur_clef_chiffrement;
1653: return;
1654: }
1655:
1656: if (longueur_iv_binaire != EVP_CIPHER_iv_length(EVP_chiffrement))
1657: {
1658: free(clef_binaire);
1659: free(iv_binaire);
1660:
1661: liberation(s_etat_processus, s_objet_argument_1);
1662: liberation(s_etat_processus, s_objet_argument_2);
1663:
1664: (*s_etat_processus).erreur_execution =
1665: d_ex_longueur_clef_chiffrement;
1666: return;
1667: }
1668:
1669: if ((message = formateur_flux(s_etat_processus, (unsigned char *)
1670: (*s_objet_argument_2).objet, &longueur_message)) == NULL)
1671: {
1672: return;
1673: }
1674:
1675: if ((message_chiffre = chiffrement(s_etat_processus,
1676: EVP_chiffrement, encodage, message,
1677: longueur_message, clef_binaire, longueur_clef_binaire,
1678: iv_binaire, &longueur_message_chiffre)) == NULL)
1679: {
1680: free(clef_binaire);
1681: free(iv_binaire);
1682: free(message);
1683:
1684: liberation(s_etat_processus, s_objet_argument_1);
1685: liberation(s_etat_processus, s_objet_argument_2);
1686:
1687: (*s_etat_processus).erreur_execution = d_ex_chiffrement;
1688: return;
1689: }
1690:
1691: free(clef_binaire);
1692: free(message);
1693:
1694: if ((s_objet_resultat_2 = allocation(s_etat_processus, CHN)) == NULL)
1695: {
1696: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
1697: return;
1698: }
1699:
1700: if (((*s_objet_resultat_2).objet = analyse_flux(s_etat_processus,
1701: message_chiffre, longueur_message_chiffre)) == NULL)
1702: {
1703: return;
1704: }
1705:
1706: free(message_chiffre);
1707:
1708: if ((s_objet_resultat_1 = allocation(s_etat_processus, LST)) == NULL)
1709: {
1710: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
1711: return;
1712: }
1713:
1714: if (((*s_objet_resultat_1).objet = allocation_maillon(s_etat_processus))
1715: == NULL)
1716: {
1717: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
1718: return;
1719: }
1720:
1721: l_element_courant = (*s_objet_resultat_1).objet;
1722:
1723: // Direction
1724:
1725: if (((*l_element_courant).donnee = allocation(s_etat_processus, CHN))
1726: == NULL)
1727: {
1728: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
1729: return;
1730: }
1731:
1732: if (((*(*l_element_courant).donnee).objet =
1733: malloc(8 * sizeof(unsigned char))) == NULL)
1734: {
1735: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
1736: return;
1737: }
1738:
1739: strcpy((*(*l_element_courant).donnee).objet,
1740: (encodage == d_vrai) ? "ENCRYPT" : "DECRYPT");
1741:
1742: // Type de chiffrement
1743:
1744: if (((*l_element_courant).suivant = allocation_maillon(
1745: s_etat_processus)) == NULL)
1746: {
1747: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
1748: return;
1749: }
1750:
1751: l_element_courant = (*l_element_courant).suivant;
1752:
1753: if (((*l_element_courant).donnee = allocation(s_etat_processus, CHN))
1754: == NULL)
1755: {
1756: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
1757: return;
1758: }
1759:
1760: if (((*(*l_element_courant).donnee).objet =
1761: conversion_majuscule(s_etat_processus, algorithme_chiffrement))
1762: == NULL)
1763: {
1764: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
1765: return;
1766: }
1767:
1768: // Clef
1769:
1770: if (((*l_element_courant).suivant = allocation_maillon(
1771: s_etat_processus)) == NULL)
1772: {
1773: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
1774: return;
1775: }
1776:
1777: l_element_courant = (*l_element_courant).suivant;
1778:
1779: if (((*l_element_courant).donnee = allocation(s_etat_processus, CHN))
1780: == NULL)
1781: {
1782: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
1783: return;
1784: }
1785:
1786: if (((*(*l_element_courant).donnee).objet =
1787: malloc((strlen(clef) + 1) * sizeof(unsigned char))) == NULL)
1788: {
1789: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
1790: return;
1791: }
1792:
1793: strcpy((*(*l_element_courant).donnee).objet, clef);
1794:
1795: // Vecteur d'initialisation
1796:
1797: if (((*l_element_courant).suivant = allocation_maillon(
1798: s_etat_processus)) == NULL)
1799: {
1800: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
1801: return;
1802: }
1803:
1804: l_element_courant = (*l_element_courant).suivant;
1805: (*l_element_courant).suivant = NULL;
1806:
1807: if (((*l_element_courant).donnee = allocation(s_etat_processus, CHN))
1808: == NULL)
1809: {
1810: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
1811: return;
1812: }
1813:
1814: if (((*(*l_element_courant).donnee).objet = analyse_flux(
1815: s_etat_processus, iv_binaire, longueur_iv_binaire)) == NULL)
1816: {
1817: return;
1818: }
1819:
1820: free(iv_binaire);
1821:
1822: liberation(s_etat_processus, s_objet_argument_1);
1823: liberation(s_etat_processus, s_objet_argument_2);
1824:
1825: if (empilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
1826: s_objet_resultat_2) == d_erreur)
1827: {
1828: return;
1829: }
1830:
1831: if (empilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
1832: s_objet_resultat_1) == d_erreur)
1833: {
1834: return;
1835: }
1836: }
1837:
1838: return;
1839: }
1840:
1841: // vim: ts=4
CVSweb interface <joel.bertrand@systella.fr>
![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to instructions_c8.c CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [local] / rpl / src