Hi JakobE,
thanks for the help. this answers my question.
based on your input and the source code of the personalization tool, i could get this working.
https://github.com/Yubico/yubikey-perso ... icpage.cpphttps://github.com/Yubico/yubikey-perso ... re/ykdef.hmy final javascript PoC code is posted below for future reference.
up to 38 characters can be programmed into the yubikey 2.2.
cheers,
gabor
Code:
function programstatic_onclick() {
var FIXED_SIZE = 16;
var UID_SIZE = 6;
var KEY_SIZE = 16;
// read and validate plain text input, max 38 chars
// e.g. 'abcdefghijklmnopqrstuvwxyz1234567890AB'
var input = staticPWD.value;
var maxLength = FIXED_SIZE + UID_SIZE + KEY_SIZE;
if (input.length > maxLength) {
alert('text too long, max ' + maxLength + ' chars');
return;
}
// encode plain text into keyboard scan codes
var scanCodes = text2scancode(input);
// split key to fit in various yubikey properties
var key1 = scanCodes.substr(0, FIXED_SIZE * 2);
var key2 = scanCodes.substr(FIXED_SIZE * 2, UID_SIZE * 2);
var key3 = scanCodes.substr(FIXED_SIZE * 2 + UID_SIZE * 2);
//yk.ykEnableDebug = true;
yk.ykClear();
yk.ykFlagProperty(17) = true; // use 2nd config
yk.ykFlagProperty(5) = true; // append an "enter" at the end.
// use staic password mode, scancode mode
yk.ykFlagProperty(11) = false; // static mode: false => output scancodes (as opposed to modhex)
yk.ykFlagProperty(12) = true; // short ticket
// set key parts
yk.ykStaticId = key1;
yk.ykUID = key2;
yk.ykKey = key3;
// write config to yubikey
var programResult = yk.ykProgram;
if (programResult == 0) {
alert('success');
} else {
alert('error: ' + programResult);
}
// logging
var log =
'input: ' + input + '\n' +
'input length: ' + input.length + '\n' +
'scancodes: ' + scanCodes + '\n' +
'key1: ' + key1 + '\n' +
'key2: ' + key2 + '\n' +
'key3: ' + key3 + '\n';
logBox.value = log;
}
// scancode conversion table
var SHIFT = 0x80;
var key2usb = [
0x00, /* 0 0x00 */
0x00, /* 1 0x01 */
0x00, /* 2 0x02 */
0x00, /* 3 0x03 */
0x00, /* 4 0x04 */
0x00, /* 5 0x05 */
0x00, /* 6 0x06 */
0x00, /* 7 0x07 */
0x00, /* 8 0x08 Backspace (0x2a) */
0x00, /* 9 0x09 Tab (0x2b) */
0x00, /* 10 0x0a Back Tab (0x2b | SHIFT) */
0x00, /* 11 0x0b Home (0x4a)*/
0x00, /* 12 0x0c Form Feed */
0x28, /* 13 0x0d Return */
0x00, /* 14 0x0e */
0x00, /* 15 0x0f */
0x00, /* 16 0x10 */
0x00, /* 17 0x11 */
0x00, /* 18 0x12 */
0x00, /* 19 0x13 */
0x00, /* 20 0x14 */
0x00, /* 21 0x15 */
0x00, /* 22 0x16 */
0x00, /* 23 0x17 */
0x00, /* 24 0x18 Cancel (0x9b) */
0x00, /* 25 0x19 */
0x00, /* 26 0x1a */
0x00, /* 27 0x1b Escape (0x29) */
0x00, /* 28 0x1c */
0x00, /* 29 0x1d */
0x00, /* 30 0x1e */
0x00, /* 31 0x1f */
0x2c, /* 32 0x20 */
0x1e | SHIFT, /* 33 0x21 ! */
0x34 | SHIFT, /* 34 0x22 " */
0x20 | SHIFT, /* 35 0x23 # */
0x21 | SHIFT, /* 36 0x24 $ */
0x22 | SHIFT, /* 37 0x25 % */
0x24 | SHIFT, /* 38 0x26 & */
0x34, /* 39 0x27 ' */
0x26 | SHIFT, /* 40 0x28 ( */
0x27 | SHIFT, /* 41 0x29 ) */
0x25 | SHIFT, /* 42 0x2a * */
0x2e | SHIFT, /* 43 0x2b + */
0x36, /* 44 0x2c , */
0x2d, /* 45 0x2d - */
0x37, /* 46 0x2e . */
0x38, /* 47 0x2f / */
0x27, /* 48 0x30 0 */
0x1e, /* 49 0x31 1 */
0x1f, /* 50 0x32 2 */
0x20, /* 51 0x33 3 */
0x21, /* 52 0x34 4 */
0x22, /* 53 0x35 5 */
0x23, /* 54 0x36 6 */
0x24, /* 55 0x37 7 */
0x25, /* 56 0x38 8 */
0x26, /* 57 0x39 9 */
0x33 | SHIFT, /* 58 0x3a : */
0x33, /* 59 0x3b ; */
0x36 | SHIFT, /* 60 0x3c < */
0x2e, /* 61 0x3d = */
0x37 | SHIFT, /* 62 0x3e > */
0x38 | SHIFT, /* 63 0x3f ? */
0x1f | SHIFT, /* 64 0x40 @ */
0x04 | SHIFT, /* 65 0x41 A */
0x05 | SHIFT, /* 66 0x42 B */
0x06 | SHIFT, /* 67 0x43 C */
0x07 | SHIFT, /* 68 0x44 D */
0x08 | SHIFT, /* 69 0x45 E */
0x09 | SHIFT, /* 70 0x46 F */
0x0a | SHIFT, /* 71 0x47 G */
0x0b | SHIFT, /* 72 0x48 H */
0x0c | SHIFT, /* 73 0x49 I */
0x0d | SHIFT, /* 74 0x4a J */
0x0e | SHIFT, /* 75 0x4b K */
0x0f | SHIFT, /* 76 0x4c L */
0x10 | SHIFT, /* 77 0x4d M */
0x11 | SHIFT, /* 78 0x4e N */
0x12 | SHIFT, /* 79 0x4f O */
0x13 | SHIFT, /* 80 0x50 P */
0x14 | SHIFT, /* 81 0x51 Q */
0x15 | SHIFT, /* 82 0x52 R */
0x16 | SHIFT, /* 83 0x53 S */
0x17 | SHIFT, /* 84 0x54 T */
0x18 | SHIFT, /* 85 0x55 U */
0x19 | SHIFT, /* 86 0x56 V */
0x1a | SHIFT, /* 87 0x57 W */
0x1b | SHIFT, /* 88 0x58 X */
0x1c | SHIFT, /* 89 0x59 Y */
0x1d | SHIFT, /* 90 0x5a Z */
0x2f, /* 91 0x5b [ */
0x32, /* 92 0x5c \ */
0x30, /* 93 0x5d ] */
0X23 | SHIFT, /* 94 0x5e ^ */
0x2d | SHIFT, /* 95 0x5f _ */
0x35, /* 96 0x60 ` */
0x04, /* 97 0x61 a */
0x05, /* 98 0x62 b */
0x06, /* 99 0x63 c */
0x07, /* 100 0x64 d */
0x08, /* 101 0x65 e */
0x09, /* 102 0x66 f */
0x0a, /* 103 0x67 g */
0x0b, /* 104 0x68 h */
0x0c, /* 105 0x69 i */
0x0d, /* 106 0x6a j */
0x0e, /* 107 0x6b k */
0x0f, /* 108 0x6c l */
0x10, /* 109 0x6d m */
0x11, /* 110 0x6e n */
0x12, /* 111 0x6f o */
0x13, /* 112 0x70 p */
0x14, /* 113 0x71 q */
0x15, /* 114 0x72 r */
0x16, /* 115 0x73 s */
0x17, /* 116 0x74 t */
0x18, /* 117 0x75 u */
0x19, /* 118 0x76 v */
0x1a, /* 119 0x77 w */
0x1b, /* 120 0x78 x */
0x1c, /* 121 0x79 y */
0x1d, /* 122 0x7a z */
0x2f | SHIFT, /* 123 0x7b { */
0x32 | SHIFT, /* 124 0x7c | */
0x30 | SHIFT, /* 125 0x7d } */
0x35 | SHIFT, /* 126 0x7e ~ */
0x00, /* 127 0x7f */
];
// convert plain text to scancode representation
function text2scancode(text) {
var result = '';
for (var i=0; i<text.length; i++) {
var charCode = text.charCodeAt(i);
var scanCode = key2usb[charCode];
var hexPadded = '00' + scanCode.toString(16);
var hex = hexPadded.substr(hexPadded.length - 2);
result += hex;
}
return result;
}
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