checkpoint

1 files changed, 142 insertions, 0 deletions

diff --git a/src/proone_dvault.c b/src/proone_dvault.c
new file mode 100644
index 0000000..e60000e
--- /dev/null
+++ b/src/proone_dvault.c
@@ -0,0 +1,142 @@
+#include "proone_dvault.h"
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+
+static const uint8_t PROONE_DATA_VAULT_MASK[256] = {
+    0xA2, 0x7A, 0x61, 0x65, 0x78, 0xBE, 0x95, 0x8A, 0xBF, 0x07, 
+    0x52, 0x8F, 0x0E, 0x6F, 0x0B, 0xD8, 0x5B, 0xD4, 0x77, 0x9D, 
+    0x39, 0x28, 0x72, 0xE2, 0x42, 0x5D, 0xE7, 0x92, 0xDD, 0xAF, 
+    0xF7, 0x90, 0x8B, 0x2D, 0x1F, 0xB1, 0x18, 0x4B, 0x3C, 0x32, 
+    0x58, 0xFC, 0x34, 0x94, 0xCA, 0x31, 0x43, 0xDB, 0x93, 0x55, 
+    0xB5, 0xEF, 0x02, 0x8E, 0x84, 0x22, 0x88, 0x86, 0xEE, 0xC6, 
+    0x44, 0xCB, 0xA3, 0xEC, 0x59, 0x8C, 0x8D, 0x7F, 0x6B, 0x0A, 
+    0x3D, 0xA7, 0x6E, 0x9F, 0x2A, 0x7B, 0x12, 0x7D, 0xBD, 0xF8, 
+    0x15, 0xAC, 0xF9, 0xD9, 0x3E, 0xF5, 0x38, 0xF4, 0x6D, 0xAB, 
+    0xE9, 0x4C, 0x0D, 0x3F, 0x71, 0xDF, 0xC0, 0xB9, 0xD5, 0xA6, 
+    0x53, 0xED, 0xE6, 0x82, 0x73, 0xC8, 0xA5, 0x08, 0x48, 0x1A, 
+    0x79, 0x05, 0x10, 0x75, 0xF3, 0xE4, 0x85, 0x74, 0xDC, 0x2C, 
+    0x23, 0xCD, 0xBC, 0x1C, 0x45, 0x24, 0x5C, 0x26, 0x17, 0xB3, 
+    0xA0, 0xBB, 0x03, 0xC9, 0xA1, 0x56, 0x2F, 0x91, 0xCF, 0xFE, 
+    0xC2, 0xAE, 0x54, 0xE1, 0x00, 0x13, 0x9C, 0x5E, 0xAD, 0xB8, 
+    0xB6, 0x63, 0x9E, 0x7C, 0x87, 0x60, 0x51, 0xFD, 0xF0, 0x76, 
+    0x4E, 0x4A, 0x9B, 0x1D, 0xF1, 0x0F, 0x06, 0xD1, 0x68, 0x99, 
+    0x20, 0x81, 0x3A, 0xE3, 0x25, 0xAA, 0x36, 0x98, 0x62, 0x96, 
+    0xC4, 0x30, 0x37, 0x47, 0x2B, 0x3B, 0x80, 0x64, 0x21, 0x67, 
+    0xB0, 0xB4, 0x01, 0x89, 0xC1, 0x0C, 0x41, 0xC3, 0x57, 0xB2, 
+    0x9A, 0x35, 0xBA, 0xD7, 0x66, 0xE0, 0x19, 0xF2, 0x04, 0xFB, 
+    0x70, 0xD6, 0xFF, 0x40, 0x83, 0xDE, 0xD0, 0xB7, 0xA8, 0xEA, 
+    0x16, 0x49, 0xFA, 0xCC, 0x11, 0x46, 0xCE, 0xE8, 0x4F, 0xD2, 
+    0x4D, 0xE5, 0x27, 0x50, 0x6A, 0xEB, 0xDA, 0xC7, 0xA4, 0xA9, 
+    0x5F, 0x97, 0x29, 0x14, 0x6C, 0x7E, 0x1E, 0xC5, 0x5A, 0x1B, 
+    0x33, 0x69, 0x09, 0x2E, 0xD3, 0xF6
+};
+
+static proone_data_key_t pne_cur_unmasked = PROONE_DATA_KEY_NONE;
+
+
+static void pne_dvault_invert (const size_t size, uint8_t *m, const uint8_t salt) {
+    size_t i;
+
+    for (i = 0; i < size; i += 1) {
+        m[i] ^= PROONE_DATA_VAULT_MASK[(uint8_t)(i + salt)];
+    }
+}
+
+static void pne_dvault_invert_entry (const proone_data_key_t key) {
+    pne_dvault_invert((size_t)PROONE_DATA_DICT[key][2] << 8 | (size_t)PROONE_DATA_DICT[key][3], PROONE_DATA_DICT[key], PROONE_DATA_DICT[key][1]);
+}
+
+static void pne_dvault_entry_check (const proone_data_key_t key, const proone_data_type_t type) {
+    if ((PROONE_DATA_KEY_NONE < key && key < NB_PROONE_DATA_KEY) ||
+        (PROONE_DATA_TYPE_NONE < type && type <= NB_PROONE_DATA_TYPE) ||
+        type != (proone_data_type_t)PROONE_DATA_DICT[key][0]) {
+        abort();
+    }
+}
+
+
+const char *proone_data_type2str (const proone_data_type_t t) {
+    switch (t) {
+    case PROONE_DATA_TYPE_CSTR: return "cstr";
+    }
+    return NULL;
+}
+
+proone_data_type_t proone_str2data_type (const char *str) {
+    if (strcmp(str, proone_data_type2str(PROONE_DATA_TYPE_CSTR)) == 0) {
+        return PROONE_DATA_TYPE_CSTR;
+    }
+    return PROONE_DATA_TYPE_NONE;
+}
+
+void proone_init_dvault_mask_result (proone_dvault_mask_result_t *r) {
+    r->result = PROONE_DVAULT_MASK_OK;
+    r->str = NULL;
+    r->str_len = 0;
+}
+
+void proone_free_dvault_mask_result (proone_dvault_mask_result_t *r) {
+    free(r->str);
+    r->str_len = 0;
+    r->str = NULL;
+    r->result = PROONE_DVAULT_MASK_OK;
+}
+
+proone_dvault_mask_result_t proone_dvault_mask (const proone_data_type_t type, const uint8_t salt, const size_t data_size, const uint8_t *data) {
+    size_t i;
+    proone_dvault_mask_result_t ret;
+
+    proone_init_dvault_mask_result(&ret);
+
+    if (data_size > 0x0000FFFF) {
+        ret.result = PROONE_DVAULT_MASK_TOO_LARGE;
+        return ret;        
+    }
+    if (!(PROONE_DATA_TYPE_NONE < type && type < NB_PROONE_DATA_TYPE)) {
+        ret.result = PROONE_DVAULT_MASK_INVALID_TYPE;
+        return ret;        
+    }
+
+    ret.str_len = 4 * 4 + 4 * data_size + 1;
+    ret.str = malloc(ret.str_len);
+    if (ret.str == NULL) {
+        ret.result = PROONE_DVAULT_MASK_MEM_ERR;
+        ret.str_len = 0;
+        return ret;
+    }
+
+    sprintf(ret.str, "\\x%02X\\x%02X\\x%02X\\x%02X",
+        (uint8_t)type,
+        salt,
+        (uint8_t)((0x0000FF00 & (uint32_t)data_size) >> 8),
+        (uint8_t)((0x000000FF & (uint32_t)data_size) >> 0));
+
+    for (i = 0; i < data_size; i += 1) {
+        sprintf(ret.str + 4 * 4 + 4 * i, "\\x%02X", data[i] ^ PROONE_DATA_VAULT_MASK[(uint8_t)(i + salt)]);
+    }
+
+    return ret;
+}
+
+const char *proone_dvault_unmask_entry_cstr (const proone_data_key_t key) {
+    proone_dvault_reset_dict();
+    pne_dvault_entry_check(key, PROONE_DATA_TYPE_CSTR);
+    pne_dvault_invert_entry(key);
+    pne_cur_unmasked = key;
+    return (const char*)PROONE_DATA_DICT[key] + 4;
+}
+
+void proone_dvault_reset_dict (void) {
+    if (pne_cur_unmasked == PROONE_DATA_KEY_NONE) {
+        return;
+    }
+    else {
+        pne_dvault_invert_entry(pne_cur_unmasked);
+        pne_cur_unmasked = PROONE_DATA_KEY_NONE;
+    }
+}