Key Generator Source Code C

I am looking for some function or a way that would return HMAC SHA256 hash in C using secret key. I have seen documentation of Crypto and OpenSSL but it does not accept an extra parameter of secret key for computation. Can someone help me by providing some info, code snippets or links.

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  1. See their site for the complete list.) The library is written in C, but there are also language bindings (interfaces) for other languages, like C, C#, NET, Delphi, Java, Python and Visual Basic. It is open source, released under a dual licence, either the (GPL-compatible) Sleepycat licence or a commercial licence.
  2. Aug 23, 2010 Make a Key Generator in C# Wolfrost. Unsubscribe from Wolfrost? This will generate a key code; though it will doubtingly work on any program, it could serve as a good Random.

The following table shows the symbolic constant names, hexadecimal values, and mouse or keyboard equivalents for the virtual-key codes used by the system. The codes are listed in numeric order.

Generator
Constant/valueDescription
VK_LBUTTON
0x01
Left mouse button
VK_RBUTTON
0x02
Right mouse button
VK_CANCEL
0x03
Control-break processing
VK_MBUTTON
0x04
Middle mouse button (three-button mouse)
VK_XBUTTON1
0x05
X1 mouse button
VK_XBUTTON2
0x06
X2 mouse button
-
0x07
Undefined
VK_BACK
0x08
BACKSPACE key
VK_TAB
0x09
TAB key
-
0x0A-0B
Reserved
VK_CLEAR
0x0C
CLEAR key
VK_RETURN
0x0D
ENTER key
-
0x0E-0F
Undefined
VK_SHIFT
0x10
SHIFT key
VK_CONTROL
0x11
CTRL key
VK_MENU
0x12
ALT key
VK_PAUSE
0x13
PAUSE key
VK_CAPITAL
0x14
CAPS LOCK key
VK_KANA
0x15
IME Kana mode
VK_HANGUEL
0x15
IME Hanguel mode (maintained for compatibility; use VK_HANGUL)
VK_HANGUL
0x15
IME Hangul mode
VK_IME_ON
0x16
IME On
VK_JUNJA
0x17
IME Junja mode
VK_FINAL
0x18
IME final mode
VK_HANJA
0x19
IME Hanja mode
VK_KANJI
0x19
IME Kanji mode
VK_IME_OFF
0x1A
IME Off
VK_ESCAPE
0x1B
ESC key
VK_CONVERT
0x1C
IME convert
VK_NONCONVERT
0x1D
IME nonconvert
VK_ACCEPT
0x1E
IME accept
VK_MODECHANGE
0x1F
IME mode change request
VK_SPACE
0x20
SPACEBAR
VK_PRIOR
0x21
PAGE UP key
VK_NEXT
0x22
PAGE DOWN key
VK_END
0x23
END key
VK_HOME
0x24
HOME key
VK_LEFT
0x25
LEFT ARROW key
VK_UP
0x26
UP ARROW key
VK_RIGHT
0x27
RIGHT ARROW key
VK_DOWN
0x28
DOWN ARROW key
VK_SELECT
0x29
SELECT key
VK_PRINT
0x2A
PRINT key
VK_EXECUTE
0x2B
EXECUTE key
VK_SNAPSHOT
0x2C
PRINT SCREEN key
VK_INSERT
0x2D
INS key
VK_DELETE
0x2E
DEL key
VK_HELP
0x2F
HELP key
0x30
0 key
0x31
1 key
0x32
2 key
0x33
3 key
0x34
4 key
0x35
5 key
0x36
6 key
0x37
7 key
0x38
8 key
0x39
9 key
-
0x3A-40
Undefined
0x41
A key
0x42
B key
0x43
C key
0x44
D key
0x45
E key
0x46
F key
0x47
G key
0x48
H key
0x49
I key
0x4A
J key
0x4B
K key
0x4C
L key
0x4D
M key
0x4E
N key
0x4F
O key
0x50
P key
0x51
Q key
0x52
R key
0x53
S key
0x54
T key
0x55
U key
0x56
V key
0x57
W key
0x58
X key
0x59
Y key
0x5A
Z key
VK_LWIN
0x5B
Left Windows key (Natural keyboard)
VK_RWIN
0x5C
Right Windows key (Natural keyboard)
VK_APPS
0x5D
Applications key (Natural keyboard)
-
0x5E
Reserved
VK_SLEEP
0x5F
Computer Sleep key
VK_NUMPAD0
0x60
Numeric keypad 0 key
VK_NUMPAD1
0x61
Numeric keypad 1 key
VK_NUMPAD2
0x62
Numeric keypad 2 key
VK_NUMPAD3
0x63
Numeric keypad 3 key
VK_NUMPAD4
0x64
Numeric keypad 4 key
VK_NUMPAD5
0x65
Numeric keypad 5 key
VK_NUMPAD6
0x66
Numeric keypad 6 key
VK_NUMPAD7
0x67
Numeric keypad 7 key
VK_NUMPAD8
0x68
Numeric keypad 8 key
VK_NUMPAD9
0x69
Numeric keypad 9 key
VK_MULTIPLY
0x6A
Multiply key
VK_ADD
0x6B
Add key
VK_SEPARATOR
0x6C
Separator key
VK_SUBTRACT
0x6D
Subtract key
VK_DECIMAL
0x6E
Decimal key
VK_DIVIDE
0x6F
Divide key
VK_F1
0x70
F1 key
VK_F2
0x71
F2 key
VK_F3
0x72
F3 key
VK_F4
0x73
F4 key
VK_F5
0x74
F5 key
VK_F6
0x75
F6 key
VK_F7
0x76
F7 key
VK_F8
0x77
F8 key
VK_F9
0x78
F9 key
VK_F10
0x79
F10 key
VK_F11
0x7A
F11 key
VK_F12
0x7B
F12 key
VK_F13
0x7C
F13 key
VK_F14
0x7D
F14 key
VK_F15
0x7E
F15 key
VK_F16
0x7F
F16 key
VK_F17
0x80
F17 key
VK_F18
0x81
F18 key
VK_F19
0x82
F19 key
VK_F20
0x83
F20 key
VK_F21
0x84
F21 key
VK_F22
0x85
F22 key
VK_F23
0x86
F23 key
VK_F24
0x87
F24 key
-
0x88-8F
Unassigned
VK_NUMLOCK
0x90
NUM LOCK key
VK_SCROLL
0x91
SCROLL LOCK key
0x92-96
OEM specific
-
0x97-9F
Unassigned
VK_LSHIFT
0xA0
Left SHIFT key
VK_RSHIFT
0xA1
Right SHIFT key
VK_LCONTROL
0xA2
Left CONTROL key
VK_RCONTROL
0xA3
Right CONTROL key
VK_LMENU
0xA4
Left MENU key
VK_RMENU
0xA5
Right MENU key
VK_BROWSER_BACK
0xA6
Browser Back key
VK_BROWSER_FORWARD
0xA7
Browser Forward key
VK_BROWSER_REFRESH
0xA8
Browser Refresh key
VK_BROWSER_STOP
0xA9
Browser Stop key
VK_BROWSER_SEARCH
0xAA
Browser Search key
VK_BROWSER_FAVORITES
0xAB
Browser Favorites key
VK_BROWSER_HOME
0xAC
Browser Start and Home key
VK_VOLUME_MUTE
0xAD
Volume Mute key
VK_VOLUME_DOWN
0xAE
Volume Down key
VK_VOLUME_UP
0xAF
Volume Up key
VK_MEDIA_NEXT_TRACK
0xB0
Next Track key
VK_MEDIA_PREV_TRACK
0xB1
Previous Track key
VK_MEDIA_STOP
0xB2
Stop Media key
VK_MEDIA_PLAY_PAUSE
0xB3
Play/Pause Media key
VK_LAUNCH_MAIL
0xB4
Start Mail key
VK_LAUNCH_MEDIA_SELECT
0xB5
Select Media key
VK_LAUNCH_APP1
0xB6
Start Application 1 key
VK_LAUNCH_APP2
0xB7
Start Application 2 key
-
0xB8-B9
Reserved
VK_OEM_1
0xBA
Used for miscellaneous characters; it can vary by keyboard.
For the US standard keyboard, the ';:' key
VK_OEM_PLUS
0xBB
For any country/region, the '+' key
VK_OEM_COMMA
0xBC
For any country/region, the ',' key
VK_OEM_MINUS
0xBD
For any country/region, the '-' key
VK_OEM_PERIOD
0xBE
For any country/region, the '.' key
VK_OEM_2
0xBF
Used for miscellaneous characters; it can vary by keyboard.
For the US standard keyboard, the '/?' key
VK_OEM_3
0xC0
Used for miscellaneous characters; it can vary by keyboard.
For the US standard keyboard, the '`~' key
-
0xC1-D7
Reserved
-
0xD8-DA
Unassigned
VK_OEM_4
0xDB
Used for miscellaneous characters; it can vary by keyboard.
For the US standard keyboard, the '[{' key
VK_OEM_5
0xDC
Used for miscellaneous characters; it can vary by keyboard.
For the US standard keyboard, the '|' key
VK_OEM_6
0xDD
Used for miscellaneous characters; it can vary by keyboard.
For the US standard keyboard, the ']}' key
VK_OEM_7
0xDE
Used for miscellaneous characters; it can vary by keyboard.
For the US standard keyboard, the 'single-quote/double-quote' key
VK_OEM_8
0xDF
Used for miscellaneous characters; it can vary by keyboard.
-
0xE0
Reserved
0xE1
OEM specific
VK_OEM_102
0xE2
Either the angle bracket key or the backslash key on the RT 102-key keyboard
0xE3-E4
OEM specific
VK_PROCESSKEY
0xE5
IME PROCESS key
0xE6
OEM specific
VK_PACKET
0xE7
Used to pass Unicode characters as if they were keystrokes. The VK_PACKET key is the low word of a 32-bit Virtual Key value used for non-keyboard input methods. For more information, see Remark in KEYBDINPUT, SendInput, WM_KEYDOWN, and WM_KEYUP
-
0xE8
Unassigned
0xE9-F5
OEM specific
VK_ATTN
0xF6
Attn key
VK_CRSEL
0xF7
CrSel key
VK_EXSEL
0xF8
ExSel key
VK_EREOF
0xF9
Erase EOF key
VK_PLAY
0xFA
Play key
VK_ZOOM
0xFB
Zoom key
VK_NONAME
0xFC
Reserved
VK_PA1
0xFD
PA1 key
VK_OEM_CLEAR
0xFE
Clear key

Requirements

Minimum supported client
Windows 2000 Professional [desktop apps only]
Minimum supported server
Windows 2000 Server [desktop apps only]
Header
Winuser.h
Code generation from the Wolfram Language involves converting programs written in the Wolfram Language into other languages and then supporting them so that they can be executed. The Wolfram System compiler provides a system for code generation into the C language.

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