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About derekjohnvn

Usernamederekjohnvn
CountryCanada
Member since2018-04-12
Coins0
Points91
Write-up with special mention0
Ranking874 / 50576
Challenges completed44 / 396

Challenge Write-up with special mention
Validation date Challenge Number of points
2018-05-11 23:26:41
Forensics
Hey Chuck where is the flag?
2
2018-05-11 22:57:21
Jail Escaping
C Jail 3
3
2018-05-11 22:56:58
Jail Escaping
C Jail 2
2
2018-05-11 22:56:47
Jail Escaping
C Jail 1
1
2018-05-11 22:45:31
Forensics
Hide my ass in my home!
2
2018-05-11 22:44:12
Forensics
I made a dd of Agent Smith usb key
1
2018-05-11 22:40:06
JavaScript
Most Secure Crypto Algo
2
2018-05-11 22:37:18
JavaScript
Valid key required
2
2018-05-11 22:36:50
JavaScript
Why not?
2
2018-05-11 22:36:17
JavaScript
Then obfuscation is more secure
1
2018-05-11 22:34:58
JavaScript
Hashing is more secure
1
2018-05-11 22:34:31
JavaScript
Client side validation is bad!
1
2018-05-11 22:30:03
SQL Injection
Login portal 2
3
2018-05-11 22:28:31
SQL Injection
Login portal 1
2
2018-05-11 22:28:03
SQL Injection
ACL rulezzz the world.
2
2018-05-11 22:26:48
SQL Injection
Most basic SQLi pattern.
1
2018-05-11 22:17:21
Jail Escaping
PHP Jail 5
6
2018-05-11 22:15:09
Jail Escaping
PHP Jail 4
4
2018-05-11 22:13:49
Jail Escaping
PHP Jail 3
3
2018-05-11 22:12:17
Jail Escaping
PHP Jail 2
2
2018-05-11 22:10:48
Jail Escaping
PHP Jail 1
1
2018-05-11 22:00:24
Jail Escaping
Bash Jail 4
4
2018-05-11 22:00:06
Jail Escaping
Bash Jail 3
3
2018-05-11 21:59:45
Jail Escaping
Bash Jail 2
2
2018-05-11 21:54:57
Jail Escaping
Bash Jail 1
1
2018-04-13 03:31:22
Web
Words mean something?
1
2018-04-13 03:30:35
Web
Security thru obscurity!
2
2018-04-13 03:29:37
Web
Password reset
2
2018-04-13 03:28:10
Web
Headache
1
2018-04-13 03:27:04
Web
Area 51
1
2018-04-13 02:51:18
Cryptography
Martian message part 3
3
2018-04-13 02:49:05
Cryptography
Public key recovery
2
2018-04-13 02:47:28
Cryptography
I Lost my password
3
2018-04-13 02:44:39
Cryptography
File recovery
1
2018-04-13 02:41:30
Reverse Engineering
Windows x86 reversing is cool
3
2018-04-13 02:40:42
Reverse Engineering
I never forget the Nintendo 64
3
2018-04-13 02:37:28
Reverse Engineering
Can you see through the star
2
2018-04-13 02:32:37
Coding Challenges
Ask your grandpa!
2
2018-04-13 02:32:01
Coding Challenges
I hate mathematics
3
2018-04-13 02:28:54
Coding Challenges
Hash me please
2
2018-04-13 02:01:24
Web
Looking for password file
1
2018-04-12 06:53:23
Cryptography
Martian message part 2
2
2018-04-12 06:48:09
Cryptography
Some martian message
1
2018-04-12 06:10:12
Reverse Engineering
Time to learn x86 ASM & gdb
2
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