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Commit 96e7ec0d authored by ChouTatsumi's avatar ChouTatsumi
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pure lowercase pwd6 find

parent fe60ed1f
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crack.c
+ 79
− 88
View file @ 96e7ec0d
......@@ -26,10 +26,12 @@
#define ASCII_LOWERCASE_TO 122
// methods reference
void check_guess(char guess[], BYTE pwd[PWD_NUMBERS][SHA256_BLOCK_SIZE],
int checked[]);
void check_n_guess(char guess[], BYTE pwd[][SHA256_BLOCK_SIZE], int n,
int checked[]);
int check_pwd4_guess(SHA256_CTX* ctx, BYTE hash[], char guess[],
BYTE pwd[][SHA256_BLOCK_SIZE], int checked[]);
int check_pwd6_guess(SHA256_CTX* ctx, BYTE hash[], char guess[],
BYTE pwd[][SHA256_BLOCK_SIZE], int checked[]);
int check_guess(SHA256_CTX* ctx, BYTE hash[], char guess[],
BYTE pwd[][SHA256_BLOCK_SIZE], int pwdn, int checked[]);
void int_array_init(int array[], int n);
int main(int argc, char** argv) {
......@@ -74,7 +76,7 @@ int main(int argc, char** argv) {
// create guess and check it
SHA256_CTX ctx;
BYTE buf[SHA256_BLOCK_SIZE];
BYTE hash[SHA256_BLOCK_SIZE];
int checked[PWD_NUMBERS];
int_array_init(checked, PWD4_NUMBERS);
......@@ -84,6 +86,7 @@ int main(int argc, char** argv) {
// violent crack PWD4
char pw4guess[PWD4_LEN + 1];
pw4guess[PWD4_LEN] = '\0';
int find;
int first, second, third, fourth;
for (first = ASCII_FROM; first <= ASCII_TO; first++) {
......@@ -96,16 +99,10 @@ int main(int argc, char** argv) {
pw4guess[3] = fourth;
// generate hash and check
sha256_init(&ctx);
sha256_update(&ctx, (BYTE*)pw4guess, PWD4_LEN);
sha256_final(&ctx, buf);
for (i = 0; i < PWD4_NUMBERS; i++) {
if (!checked[i] && !memcmp(pwd[i], buf, SHA256_BLOCK_SIZE)) {
checked[i] = 1;
printf("%s %d\n", pw4guess, i + 1);
fprintf(fp, "%s %d\n", pw4guess, i + 1);
}
find = check_pwd4_guess(&ctx, hash, pw4guess, pwd, checked);
if (find){
printf("%s %d\n", pw4guess, find);
fprintf(fp, "%s %d\n", pw4guess, find);
}
}}}}
......@@ -132,18 +129,10 @@ int main(int argc, char** argv) {
pw6guess[5] = sixth;
// generate hash and check
sha256_init(&ctx);
sha256_update(&ctx, (BYTE*)pw6guess, PWD6_LEN);
sha256_final(&ctx, buf);
for (i = PWD4_NUMBERS; i < PWD_NUMBERS; i++) {
if (!checked[i] &&
!memcmp(pwd[i], buf,
SHA256_BLOCK_SIZE)) {
checked[i] = 1;
printf("%s %d\n", pw6guess, i + 1);
fprintf(fp, "%s %d\n", pw6guess, i + 1);
}
find = check_pwd6_guess(&ctx, hash, pw6guess, pwd, checked);
if (find) {
printf("%s %d\n", pw6guess, find);
fprintf(fp, "%s %d\n", pw6guess, find);
}
}}}}}}
......@@ -165,32 +154,19 @@ int main(int argc, char** argv) {
pw6guess[5] = sixth;
// generate hash and check
sha256_init(&ctx);
sha256_update(&ctx, (BYTE*)pw6guess, PWD6_LEN);
sha256_final(&ctx, buf);
for (i = PWD4_NUMBERS; i < PWD_NUMBERS; i++) {
if (!checked[i] &&
!memcmp(pwd[i], buf,
SHA256_BLOCK_SIZE)) {
checked[i] = 1;
printf("%s %d\n", pw6guess, i + 1);
fprintf(fp, "%s %d\n", pw6guess, i + 1);
}
}
find = check_pwd6_guess(&ctx, hash, pw6guess, pwd, checked);
if (find) {
printf("%s %d\n", pw6guess, find);
fprintf(fp, "%s %d\n", pw6guess, find);
// continue find similar password
// first lettle capitalize
pw6guess[0] = first - ASCII_LOWERCASE_FROM + ASCII_UPPERCASE_FROM;
// generate hash and check
sha256_init(&ctx);
sha256_update(&ctx, (BYTE*)pw6guess, PWD6_LEN);
sha256_final(&ctx, buf);
for (i = PWD4_NUMBERS; i < PWD_NUMBERS; i++) {
if (!checked[i] && !memcmp(pwd[i], buf, SHA256_BLOCK_SIZE)) {
checked[i] = 1;
printf("%s %d\n", pw6guess, i + 1);
fprintf(fp, "%s %d\n", pw6guess, i + 1);
find = check_pwd6_guess(&ctx, hash, pw6guess, pwd, checked);
if (find) {
printf("%s %d\n", pw6guess, find);
fprintf(fp, "%s %d\n", pw6guess, find);
}
}
}}}}}}
......@@ -242,27 +218,23 @@ int main(int argc, char** argv) {
wfp = fopen(OUTPUT_FILENAME, "w");
char input[INPUTSIZE];
SHA256_CTX ctx;
BYTE buf[SHA256_BLOCK_SIZE];
BYTE hash[SHA256_BLOCK_SIZE];
// create flag arrays to avoid repeat check
int checked[pwdcount];
int_array_init(checked, pwdcount);
int find;
while (fgets(input, INPUTSIZE, fp) != NULL) {
// get rid of \n for buffer
buffer[strlen(input) - 1] = '\0';
input[strlen(input) - 1] = '\0';
// generate hash and check
sha256_init(&ctx);
sha256_update(&ctx, (BYTE*)input, 4);
sha256_final(&ctx, buf);
find = check_guess(&ctx, hash, input, pwd, pwdcount, checked);
for (int i = 0; i < pwdcount; i++) {
if (!checked[i] && !memcmp(pwd[i], buf, SHA256_BLOCK_SIZE)) {
checked[i] = 1;
printf("%s %d\n", input, i + 1);
fprintf(wfp, "%s %d\n", input, i + 1);
}
if (find) {
printf("%s %d\n", input, find);
fprintf(wfp, "%s %d\n", input, find);
}
}
......@@ -273,35 +245,54 @@ int main(int argc, char** argv) {
return 0;
}
void check_guess(char guess[], BYTE pwd[PWD_NUMBERS][SHA256_BLOCK_SIZE],
int checked[]) {
SHA256_CTX ctx;
BYTE buf[SHA256_BLOCK_SIZE];
size_t guess_len = strlen(guess);
int i;
sha256_init(&ctx);
sha256_update(&ctx, (BYTE*)guess, guess_len);
sha256_final(&ctx, buf);
int check_pwd4_guess(SHA256_CTX* ctx, BYTE hash[], char guess[],
BYTE pwd[][SHA256_BLOCK_SIZE], int checked[]) {
sha256_init(ctx);
sha256_update(ctx, (BYTE*)guess, PWD4_LEN);
sha256_final(ctx, hash);
if (guess_len == 4) {
int i;
for (i = 0; i < PWD4_NUMBERS; i++) {
if (!checked[i] && !memcmp(pwd[i], buf, SHA256_BLOCK_SIZE)) {
if (!checked[i] && !memcmp(pwd[i], hash, SHA256_BLOCK_SIZE)) {
checked[i] = 1;
printf("%s %d\n", guess, i + 1);
return i + 1;
}
}
} else if (guess_len == 6) {
return 0;
}
int check_pwd6_guess(SHA256_CTX* ctx, BYTE hash[], char guess[],
BYTE pwd[][SHA256_BLOCK_SIZE], int checked[]) {
sha256_init(ctx);
sha256_update(ctx, (BYTE*)guess, PWD6_LEN);
sha256_final(ctx, hash);
int i;
for (i = PWD4_NUMBERS; i < PWD_NUMBERS; i++) {
if (!checked[i] && !memcmp(pwd[i], buf, SHA256_BLOCK_SIZE)) {
if (!checked[i] && !memcmp(pwd[i], hash, SHA256_BLOCK_SIZE)) {
checked[i] = 1;
printf("%s %d\n", guess, i + 1);
return i + 1;
}
}
} else {
fprintf(stderr, "ERROR, undefine guess length\n");
exit(0);
return 0;
}
int check_guess(SHA256_CTX* ctx, BYTE hash[], char guess[],
BYTE pwd[][SHA256_BLOCK_SIZE], int pwdn, int checked[]) {
sha256_init(ctx);
sha256_update(ctx, (BYTE*)guess, PWD6_LEN);
sha256_final(ctx, hash);
int i;
for (i = 0; i < pwdn; i++) {
if (!checked[i] && !memcmp(pwd[i], hash, SHA256_BLOCK_SIZE)) {
checked[i] = 1;
return i + 1;
}
}
return 0;
}
void int_array_init(int array[], int n) {
......
found_pwds.txt
+ 8
− 0
View file @ 96e7ec0d
......@@ -8,4 +8,12 @@ sp*t 1
spOt 4
spot 5
xunz 8
aeaiig 11
eunodz 15
gabrie 22
howhmr 14
millie 27
sangre 13
terenc 16
Terenc 25
waterf 30
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