implement anti-libcrypt

PSP-Archive · Jul 28, 2024 · ceaf5a8 · ceaf5a8
1 parent 2a015cc
commit ceaf5a8
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Showing 3 changed files with 258 additions and 1 deletion.
diff --git a/core/popcorn/Makefile b/core/popcorn/Makefile
@@ -1,6 +1,6 @@
 TARGET = popcorn
 
-OBJS = main.o icon.o
+OBJS = main.o libcrypt.o icon.o
 
 all: $(TARGET).prx
 INCDIR = $(ARKROOT)/common/include

diff --git a/core/popcorn/libcrypt.c b/core/popcorn/libcrypt.c
@@ -0,0 +1,252 @@
+#include <pspkernel.h>
+
+struct mw {
+       char *discid;
+       uint32_t mw;
+};
+
+struct mw magic_words[] = {
+       {"_SCES_00311", 34730},
+       {"_SCES_01431", 25927},
+       {"_SCES_01444", 48452},
+       {"_SCES_01492", 53610},
+       {"_SCES_01493", 6522},
+       {"_SCES_01494", 43686},
+       {"_SCES_01495", 3671},
+       {"_SCES_01516", 17654},
+       {"_SCES_01517", 44677},
+       {"_SCES_01518", 39975},
+       {"_SCES_01519", 13899},
+       {"_SCES_01564", 52929},
+       {"_SCES_01695", 35306},
+       {"_SCES_01700", 18199},
+       {"_SCES_01701", 50334},
+       {"_SCES_01702", 26410},
+       {"_SCES_01703", 34879},
+       {"_SCES_01704", 52786},
+       {"_SCES_01763", 2415},
+       {"_SCES_01882", 45924},
+       {"_SCES_01909", 59272},
+       {"_SCES_01979", 3485},
+       {"_SCES_02004", 50231},
+       {"_SCES_02005", 37175},
+       {"_SCES_02006", 30036},
+       {"_SCES_02007", 59014},
+       {"_SCES_02028", 39636},
+       {"_SCES_02029", 9910},
+       {"_SCES_02030", 9177},
+       {"_SCES_02031", 54053},
+       {"_SCES_02080", 40416},
+       {"_SCES_02104", 29771},
+       {"_SCES_02105", 41841},
+       {"_SCES_02181", 32132},
+       {"_SCES_02182", 43213},
+       {"_SCES_02184", 7772},
+       {"_SCES_02185", 29924},
+       {"_SCES_02222", 42232},
+       {"_SCES_02264", 3646},
+       {"_SCES_02269", 30215},
+       {"_SCES_02290", 4823},
+       {"_SCES_02365", 7388},
+       {"_SCES_02366", 54984},
+       {"_SCES_02367", 38566},
+       {"_SCES_02368", 23591},
+       {"_SCES_02369", 56357},
+       {"_SCES_02430", 45401},
+       {"_SCES_02431", 30834},
+       {"_SCES_02432", 5038},
+       {"_SCES_02433", 46347},
+       {"_SCES_02487", 31440},
+       {"_SCES_02488", 35215},
+       {"_SCES_02489", 9706},
+       {"_SCES_02490", 3948},
+       {"_SCES_02491", 61467},
+       {"_SCES_02544", 14871},
+       {"_SCES_02545", 43372},
+       {"_SCES_02546", 14218},
+       {"_SCES_02834", 59176},
+       {"_SCES_02835", 13978},
+       {"_SLES_00017", 58040},
+       {"_SLES_00995", 35761},
+       {"_SLES_01041", 25367},
+       {"_SLES_01226", 999},
+       {"_SLES_01241", 58131},
+       {"_SLES_01301", 46882},
+       {"_SLES_01362", 27814},
+       {"_SLES_01545", 42318},
+       {"_SLES_01715", 42228},
+       {"_SLES_01733", 45165},
+       {"_SLES_01906", 5357},
+       {"_SLES_01907", 49390},
+       {"_SLES_01943", 28775},
+       {"_SLES_02024", 7025},
+       {"_SLES_02025", 51790},
+       {"_SLES_02026", 4463},
+       {"_SLES_02027", 14947},
+       {"_SLES_02061", 35509},
+       {"_SLES_02071", 10037},
+       {"_SLES_02080", 40416},
+       {"_SLES_02081", 26679},
+       {"_SLES_02082", 27019},
+       {"_SLES_02083", 38093},
+       {"_SLES_02084", 17597},
+       {"_SLES_02086", 5876},
+       {"_SLES_02112", 44868},
+       {"_SLES_02113", 22679},
+       {"_SLES_02118", 28080},
+       {"_SLES_02207", 14956},
+       {"_SLES_02208", 29097},
+       {"_SLES_02209", 9942},
+       {"_SLES_02210", 25389},
+       {"_SLES_02211", 6743},
+       {"_SLES_02292", 34546},
+       {"_SLES_02293", 47749},
+       {"_SLES_02328", 16162},
+       {"_SLES_02329", 40248},
+       {"_SLES_02330", 57405},
+       {"_SLES_02354", 25833},
+       {"_SLES_02355", 19174},
+       {"_SLES_02395", 43689},
+       {"_SLES_02396", 42346},
+       {"_SLES_02402", 43578},
+       {"_SLES_02529", 44400},
+       {"_SLES_02530", 31779},
+       {"_SLES_02531", 44216},
+       {"_SLES_02532", 7229},
+       {"_SLES_02533", 60042},
+       {"_SLES_02538", 25427},
+       {"_SLES_02558", 54752},
+       {"_SLES_02559", 22293},
+       {"_SLES_02560", 56104},
+       {"_SLES_02561", 60037},
+       {"_SLES_02562", 15764},
+       {"_SLES_02563", 19299},
+       {"_SLES_02572", 14684},
+       {"_SLES_02573", 21859},
+       {"_SLES_02681", 7367},
+       {"_SLES_02688", 29544},
+       {"_SLES_02689", 57810},
+       {"_SLES_02698", 7325},
+       {"_SLES_02700", 10200},
+       {"_SLES_02704", 28958},
+       {"_SLES_02705", 19117},
+       {"_SLES_02706", 7857},
+       {"_SLES_02707", 44337},
+       {"_SLES_02708", 24260},
+       {"_SLES_02722", 46730},
+       {"_SLES_02723", 4080},
+       {"_SLES_02724", 52884},
+       {"_SLES_02733", 46605},
+       {"_SLES_02754", 8129},
+       {"_SLES_02755", 22807},
+       {"_SLES_02756", 57462},
+       {"_SLES_02763", 30886},
+       {"_SLES_02766", 38991},
+       {"_SLES_02767", 43845},
+       {"_SLES_02768", 40296},
+       {"_SLES_02769", 12510},
+       {"_SLES_02824", 45957},
+       {"_SLES_02830", 25276},
+       {"_SLES_02831", 1502},
+       {"_SLES_02839", 51993},
+       {"_SLES_02857", 24330},
+       {"_SLES_02858", 15898},
+       {"_SLES_02859", 9566},
+       {"_SLES_02860", 42898},
+       {"_SLES_02861", 51420},
+       {"_SLES_02862", 50129},
+       {"_SLES_02965", 46792},
+       {"_SLES_02966", 52897},
+       {"_SLES_02967", 29274},
+       {"_SLES_02968", 58646},
+       {"_SLES_02969", 60513},
+       {"_SLES_02975", 31377},
+       {"_SLES_02976", 25927},
+       {"_SLES_02977", 47245},
+       {"_SLES_02978", 23315},
+       {"_SLES_02979", 12106},
+       {"_SLES_03061", 3198},
+       {"_SLES_03062", 45261},
+       {"_SLES_03189", 19404},
+       {"_SLES_03190", 28943},
+       {"_SLES_03191", 27285},
+       {"_SLES_03241", 31618},
+       {"_SLES_03242", 42856},
+       {"_SLES_03243", 10097},
+       {"_SLES_03244", 5527},
+       {"_SLES_03245", 1495},
+       {"_SLES_03324", 52529},
+       {"_SLES_03489", 37039},
+       {"_SLES_03519", 47892},
+       {"_SLES_03520", 38520},
+       {"_SLES_03521", 64288},
+       {"_SLES_03522", 51982},
+       {"_SLES_03523", 12540},
+       {"_SLES_03530", 37872},
+       {"_SLES_03603", 23241},
+       {"_SLES_03604", 6510},
+       {"_SLES_03605", 61778},
+       {"_SLES_03606", 50644},
+       {"_SLES_03607", 35387},
+       {"_SLES_03626", 20259},
+       {"_SLES_03648", 26937},
+       {"_SLES_12080", 40416},
+       {"_SLES_12081", 26679},
+       {"_SLES_12082", 27019},
+       {"_SLES_12083", 38093},
+       {"_SLES_12084", 17597},
+       {"_SLES_12328", 19180},
+       {"_SLES_12329", 40248},
+       {"_SLES_12330", 56835},
+       {"_SLES_12558", 54752},
+       {"_SLES_12559", 22293},
+       {"_SLES_12560", 56104},
+       {"_SLES_12561", 60037},
+       {"_SLES_12562", 15764},
+       {"_SLES_12965", 41427},
+       {"_SLES_12966", 38705},
+       {"_SLES_12967", 55574},
+       {"_SLES_12968", 21583},
+       {"_SLES_12969", 25691},
+       {"_SLES_22080", 40416},
+       {"_SLES_22081", 26679},
+       {"_SLES_22082", 27019},
+       {"_SLES_22083", 38093},
+       {"_SLES_22084", 17597},
+       {"_SLES_22328", 28883},
+       {"_SLES_22329", 40248},
+       {"_SLES_22330", 9067},
+       {"_SLES_22965", 28098},
+       {"_SLES_22966", 51315},
+       {"_SLES_22967", 6581},
+       {"_SLES_22968", 16847},
+       {"_SLES_22969", 26166},
+       {"_SLES_32080", 40416},
+       {"_SLES_32081", 26679},
+       {"_SLES_32082", 27019},
+       {"_SLES_32083", 38093},
+       {"_SLES_32084", 17597},
+       {"_SLES_32965", 7877},
+       {"_SLES_32966", 13777},
+       {"_SLES_32967", 21709},
+       {"_SLES_32968", 50717},
+       {"_SLES_32969", 59587},
+};
+
+int searchMagicWord(char* discid){
+  int lower = 0;
+  int upper = (sizeof(magic_words)/sizeof(magic_words[0]))-1;
+
+  while (lower < upper-1){
+    int cmp1 = strcmp(magic_words[lower].discid, discid);
+    int cmp2 = strcmp(magic_words[upper].discid, discid);
+    if (cmp1 == 0) return magic_words[lower].mw;
+    else if (cmp2 == 0) return magic_words[upper].mw;
+    int half = (upper-lower)/2;
+    int cmp3 = strcmp(magic_words[lower+half].discid, discid);
+    if (cmp3 == 0) return magic_words[lower+half].mw;
+    else if (cmp3 < 0) lower += half;
+    else upper -= half;
+  }
+  return 0;
+}
diff --git a/core/popcorn/main.c b/core/popcorn/main.c
@@ -457,6 +457,11 @@ static int myIoRead(int fd, unsigned char *buf, int size)
                 sceIoLseek(fd, pos+size, PSP_SEEK_SET);
                 if (strncmp(magic, "PSISOIMG", 8) == 0){
                     memcpy(buf+0x20, custom_config, config_size);
+                    int mw = searchMagicWord(buf);
+                    if (mw != 0){
+                        mw ^= 0x72D0EE59;
+                        memcpy(buf+0xeb0, &mw, sizeof(mw));
+                    }
                 }
                 break;
             }