+++ /dev/null
-/*************************************************************************\r
-** **\r
-** A E S 1 2 8 - AES-128 encryption and decryption **\r
-** **\r
-** Copyright 2008 Yubico AB **\r
-** **\r
-** Date / Sig / Rev / History **\r
-** 2008-06-05 / J E / 0.00 / Main **\r
-** **\r
-*************************************************************************/\r
-\r
-#include "aes128.h"\r
-#include <string.h>\r
-\r
-#define NUMBER_OF_ROUNDS 10\r
-\r
-static const unsigned char RC[] = \r
- { 0x1, 0x2, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36 };\r
-\r
-static const unsigned char sbox[] = {\r
- 0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, \r
- 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76, \r
- 0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0, \r
- 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0, \r
- 0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc, \r
- 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15, \r
- 0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, \r
- 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75, \r
- 0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0, \r
- 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84, \r
- 0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b, \r
- 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf, \r
- 0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, \r
- 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8, \r
- 0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5, \r
- 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2, \r
- 0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17, \r
- 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73, \r
- 0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, \r
- 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb, \r
- 0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c, \r
- 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79, \r
- 0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9, \r
- 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08, \r
- 0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, \r
- 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a, \r
- 0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e, \r
- 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e, \r
- 0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94, \r
- 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf, \r
- 0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, \r
- 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16\r
-};\r
-\r
-static const unsigned char inv_sbox[] = {\r
- 0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, \r
- 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb, \r
- 0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87, \r
- 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb, \r
- 0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d, \r
- 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e, \r
- 0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2, \r
- 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25, \r
- 0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16, \r
- 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92, \r
- 0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda, \r
- 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84, \r
- 0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a, \r
- 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06, \r
- 0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02, \r
- 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b, \r
- 0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea, \r
- 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73, \r
- 0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85, \r
- 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e, \r
- 0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89, \r
- 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b, \r
- 0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20, \r
- 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4, \r
- 0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31, \r
- 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f, \r
- 0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d, \r
- 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef, \r
- 0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0, \r
- 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61, \r
- 0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, \r
- 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d\r
-};\r
-\r
-static unsigned char xtime(unsigned char b) { \r
- return (b & 0x80) ? ((b << 1) ^ 0x1b) : (b << 1); \r
-}\r
-\r
-/*************************************************************************\r
-** function aesEncrypt **\r
-** Encrypts a single AES-128 block **\r
-** **\r
-** void aesEncrypt(unsigned char *state, const unsigned char *key) **\r
-** **\r
-** Where: **\r
-** "state" is state buffer, i.e. plaintext in, ciphertext out **\r
-** "key" is pointer to AES key **\r
-** **\r
-*************************************************************************/\r
-\r
-void aesEncrypt(unsigned char *state, const unsigned char *key)\r
-{\r
- unsigned char i, j, k, tmp, round_key[0x10];\r
-\r
- memcpy(round_key, key, sizeof(round_key));\r
-\r
- for (i = 0; i < 16; i++) state[i] ^= key[i];\r
-\r
- for (i = 0; i < NUMBER_OF_ROUNDS; i++) {\r
-\r
- // byte_sub_shift_row(state);\r
-\r
- /* First row: 0 shift, 0 4 8 12 */\r
- state[0] = sbox[state[0]];\r
- state[4] = sbox[state[4]];\r
- state[8] = sbox[state[8]];\r
- state[12] = sbox[state[12]];\r
-\r
- /* Second row: 1 shift, 1 5 9 13 */ \r
- tmp = state[1];\r
- state[1] = sbox[state[5]];\r
- state[5] = sbox[state[9]];\r
- state[9] = sbox[state[13]];\r
- state[13] = sbox[tmp];\r
-\r
- /* Third row: 2 shift, 2 6 10 14 */\r
- tmp = state[2];\r
- state[2] = sbox[state[10]];\r
- state[10] = sbox[tmp];\r
- tmp = state[6];\r
- state[6] = sbox[state[14]];\r
- state[14] = sbox[tmp];\r
-\r
- /* Fourth row: 3 shift, 3 7 11 15 */\r
- tmp = state[15];\r
- state[15] = sbox[state[11]];\r
- state[11] = sbox[state[7]];\r
- state[7] = sbox[state[3]];\r
- state[3] = sbox[tmp];\r
-\r
- if (i != (NUMBER_OF_ROUNDS - 1)) {\r
-\r
- // mix_column(state);\r
-\r
- for (k = 0; k < 16; k += 4) {\r
-\r
- j = state[k] ^ state[k + 1]; \r
- tmp = j ^ state[k + 2] ^ state[k + 3];\r
- \r
- j = xtime(j);\r
-\r
- state[k] ^= (j ^ tmp);\r
-\r
- j = state[k + 1] ^ state[k + 2];\r
- j = xtime(j);\r
-\r
- state[k + 1] ^= (j ^ tmp);\r
-\r
- j = state[k + 2] ^ state[k + 3];\r
- j = xtime(j);\r
-\r
- state[k + 2] ^= (j ^ tmp); \r
- state[k + 3] = state[k] ^ state[k + 1] ^ state[k + 2] ^ tmp;\r
- }\r
- }\r
-\r
- round_key[0] ^= RC[i];\r
-\r
- round_key[0] ^= sbox[round_key[13]];\r
- round_key[1] ^= sbox[round_key[14]];\r
- round_key[2] ^= sbox[round_key[15]];\r
- round_key[3] ^= sbox[round_key[12]];\r
-\r
- for (k = 4; k < 16; k++) round_key[k] ^= round_key[k - 4];\r
-\r
- // add_round_key(state, round_key);\r
-\r
- for (j = 0; j < 16; j++) state[j] ^= round_key[j];\r
- }\r
-}\r
-\r
-/*************************************************************************\r
-** function aesDecrypt **\r
-** Decrypts a single AES-128 block **\r
-** **\r
-** void aesDecrypt(unsigned char *state, const unsigned char *key) **\r
-** **\r
-** Where: **\r
-** "state" is state buffer, i.e. ciphertext in, plaintext out **\r
-** "key" is pointer to AES key **\r
-** **\r
-*************************************************************************/\r
-\r
-void aesDecrypt(unsigned char *state, const unsigned char *key)\r
-{\r
- unsigned char i, j, round_key[0x10];\r
- unsigned char a02x, a13x;\r
- unsigned char a02xx, a13xx;\r
- unsigned char k1, k2;\r
-\r
- memcpy(round_key, key, sizeof(round_key));\r
- for (i = 0; i < NUMBER_OF_ROUNDS; i++) {\r
- round_key[0] ^= RC[i];\r
-\r
- round_key[0] ^= sbox[round_key[13]];\r
- round_key[1] ^= sbox[round_key[14]];\r
- round_key[2] ^= sbox[round_key[15]];\r
- round_key[3] ^= sbox[round_key[12]];\r
-\r
- for (j = 4; j < 16; j++) round_key[j] ^= round_key[j - 4]; \r
- }\r
- for (i = 0; i < 0x10; i++) state[i] ^= round_key[i];\r
-\r
- for (i = 1; i <= NUMBER_OF_ROUNDS; i++) {\r
- // inv_byte_sub_shift_row();\r
- \r
- /* First row: 0 shift, 0 4 8 12 */\r
- state[0] = inv_sbox[state[0]];\r
- state[4] = inv_sbox[state[4]];\r
- state[8] = inv_sbox[state[8]];\r
- state[12] = inv_sbox[state[12]];\r
-\r
- /* Second row: -1 shift, 1 5 9 13 */ \r
- j = state[13];\r
- state[13] = inv_sbox[state[9]];\r
- state[9] = inv_sbox[state[5]];\r
- state[5] = inv_sbox[state[1]];\r
- state[1] = inv_sbox[j];\r
-\r
- /* Third row: -2 shift, 2 6 10 14 */\r
- j = state[2];\r
- state[2] = inv_sbox[state[10]];\r
- state[10] = inv_sbox[j];\r
- j = state[6];\r
- state[6] = inv_sbox[state[14]];\r
- state[14] = inv_sbox[j];\r
-\r
- /* Fourth row: -3 shift, 3 7 11 15 */\r
- j = state[3];\r
- state[3] = inv_sbox[state[7]];\r
- state[7] = inv_sbox[state[11]];\r
- state[11] = inv_sbox[state[15]];\r
- state[15] = inv_sbox[j];\r
-\r
-// get_inv_round_key(i);\r
-\r
- for (j = 15; j > 3; j--) round_key[j] ^= round_key[j - 4];\r
-\r
- round_key[0] ^= (RC[NUMBER_OF_ROUNDS - i] ^ sbox[round_key[13]]);\r
-\r
- round_key[1] ^= sbox[round_key[14]];\r
- round_key[2] ^= sbox[round_key[15]];\r
- round_key[3] ^= sbox[round_key[12]];\r
-\r
- for (j = 0; j < 16; j++) state[j] ^= round_key[j];\r
- if (i != NUMBER_OF_ROUNDS) {\r
- \r
- //inv_mix_column();\r
-\r
- for (j = 0; j < 16; j += 4) {\r
- k1 = state[j] ^ state[j + 2];\r
- a02x = xtime(k1);\r
- k2 = state[j + 1] ^ state[j + 3];\r
- a13x = xtime(k2);\r
- \r
- k1 ^= (k2 ^ xtime(state[j + 1] ^ state[j + 2]));\r
- k2 = k1;\r
-\r
- a02xx = xtime(a02x);\r
- a13xx = xtime(a13x);\r
-\r
- k1 ^= (xtime(a02xx ^ a13xx) ^ a02xx);\r
- k2 ^= (xtime(a02xx ^ a13xx) ^ a13xx);\r
-\r
- state[j] ^= (k1 ^ a02x);\r
- state[j + 1] ^= k2;\r
- state[j + 2] ^= (k1 ^ a13x);\r
- state[j + 3] ^= (k2 ^ a02x ^ a13x);\r
- }\r
- }\r
-\r
- }\r
-}\r
+++ /dev/null
-/*************************************************************************
-** **
-** Y U B I K E Y - Basic LibUSB programming API for the Yubikey **
-** **
-** Copyright 2008 Yubico AB **
-** **
-** Date / Sig / Rev / History **
-** 2008-06-05 / J E / 0.00 / Main **
-** **
-*************************************************************************/
-
-#include <usb.h> // Rename to avoid clash with windows USBxxx headers
-#include "yubikey.h"
-#include <ykutil.h>
-
-#define YUBICO_VID 0x1050
-#define YUBIKEY_PID 0x0010
-
-#define HID_GET_REPORT 0x01
-#define HID_SET_REPORT 0x09
-
-#define FEATURE_RPT_SIZE 8
-
-#define REPORT_TYPE_FEATURE 0x03
-
-/*************************************************************************
-** function hidSetReport **
-** Set HID report **
-** **
-** int hidSetReport(YUBIKEY *yk, int reportType, int reportNumber, **
-** char *buffer, int size) **
-** **
-** Where: **
-** "yk" is handle to open Yubikey **
-** "reportType" is HID report type (in, out or feature) **
-** "reportNumber" is report identifier **
-** "buffer" is pointer to in buffer **
-** "size" is size of the buffer **
-** **
-** Returns: Nonzero if successful, zero otherwise **
-** **
-*************************************************************************/
-
-static int hidSetReport(YUBIKEY *yk, int reportType, int reportNumber, char *buffer, int size)
-{
- return usb_control_msg(yk, USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_ENDPOINT_OUT, HID_SET_REPORT,
- reportType << 8 | reportNumber, 0, buffer, size, 1000) > 0;
-}
-
-/*************************************************************************
-** function hidGetReport **
-** Get HID report **
-** **
-** int hidGetReport(YUBIKEY *yk, int reportType, int reportNumber, **
-** char *buffer, int size) **
-** **
-** Where: **
-** "yk" is handle to open Yubikey **
-** "reportType" is HID report type (in, out or feature) **
-** "reportNumber" is report identifier **
-** "buffer" is pointer to in buffer **
-** "size" is size of the buffer **
-** **
-** Returns: Number of bytes read. Zero if failure **
-** **
-*************************************************************************/
-
-static int hidGetReport(YUBIKEY *yk, int reportType, int reportNumber, char *buffer, int size)
-{
- int m = usb_claim_interface(yk, 0);
- printf ("m %d: %s\n", m, usb_strerror ());
-
- return usb_control_msg(yk, USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_ENDPOINT_IN, HID_GET_REPORT,
- reportType << 8 | reportNumber, 0, buffer, size, 1000) > 0;
-}
-
-/*************************************************************************
-** function ykInit **
-** Initiates libUsb and other stuff. Call this one first **
-** **
-** void ykInit(void) **
-** **
-*************************************************************************/
-
-int ykInit(void)
-{
- usb_init();
-
- if (usb_find_busses()) return usb_find_devices();
-
- return 0;
-}
-
-/*************************************************************************
-** function ykOpen **
-** Opens first Yubikey found for subsequent operations **
-** **
-** YUBIKEY ykOpen(void) **
-** **
-** Returns: Handle to opened Yubikey **
-** **
-*************************************************************************/
-
-YUBIKEY *ykOpen(void)
-{
- struct usb_bus *bus;
- struct usb_device *dev;
-
- // Find first instance of the Yubikey
-
- for (bus = usb_get_busses(); bus; bus = bus->next)
- for (dev = bus->devices; dev; dev = dev->next)
- if (dev->descriptor.idVendor == YUBICO_VID && dev->descriptor.idProduct == YUBIKEY_PID)
- return (YUBIKEY *) usb_open(dev);
-
- return (YUBIKEY *) 0;
-}
-
-/*************************************************************************
-** function ykClose **
-** Closes open Yubikey handle **
-** **
-** void ykClose(void) **
-** **
-*************************************************************************/
-
-void ykClose(YUBIKEY *yk)
-{
- usb_close((usb_dev_handle *) yk);
-}
-
-/*************************************************************************
-** function ykGetStatus **
-** Read the Yubikey status structure **
-** **
-** int ykGetStatus(YUBIKEY *yk, STATUS *status, int forceUpdate) **
-** **
-** Where: **
-** "yk" is handle to open Yubikey **
-** "status" is pointer to returned status structure **
-** "forceUpdate" is set to nonzero to force update of dynamic fields **
-** **
-** Returns: Nonzero if successful, zero otherwise **
-** **
-*************************************************************************/
-
-int ykGetStatus(YUBIKEY *yk, STATUS *status, int forceUpdate)
-{
- unsigned char buf[FEATURE_RPT_SIZE];
-
- // Read status structure
-
- memset(buf, 0, sizeof(buf));
-
- if (!hidGetReport(yk, REPORT_TYPE_FEATURE, 0, buf, FEATURE_RPT_SIZE)) return 0;
-
- memcpy(status, buf + 1, sizeof(STATUS));
- ENDIAN_SWAP(status->touchLevel);
-
- // If force update, force Yubikey to update its dynamic
- // status value(s)
-
- if (forceUpdate) {
- memset(buf, 0, sizeof(buf));
- buf[FEATURE_RPT_SIZE - 1] = 0x8a; // Invalid partition = update only
- hidSetReport(yk, REPORT_TYPE_FEATURE, 0, buf, FEATURE_RPT_SIZE);
- }
-
- return 1;
-}
-
-/*************************************************************************
-** function ykWriteSlot **
-** Writes data to Yubikey slot **
-** **
-** static int ykWriteSlot(YUBIKEY *yk, unsigned char slot, **
-** const void *buf, int bcnt) **
-** **
-** Where: **
-** "yk" is handle to open Yubikey **
-** "slot" is slot number to write to **
-** "buf" is pointer to write data buffer **
-** "bcnt" is number of bytes to write **
-** **
-** Returns: Nonzero if successful, zero otherwise **
-** **
-*************************************************************************/
-
-static int ykWriteSlot(YUBIKEY *yk, unsigned char slot, const void *dt, int bcnt)
-{
- unsigned char buf[FEATURE_RPT_SIZE], data[SLOT_DATA_SIZE + FEATURE_RPT_SIZE];
- int i, j, pos, part;
-
- // Insert data and set slot #
-
- memset(data, 0, sizeof(data));
- memcpy(data, dt, bcnt);
- data[SLOT_DATA_SIZE] = slot;
-
- // Append slot checksum
-
- i = getCRC(data, SLOT_DATA_SIZE);
- data[SLOT_DATA_SIZE + 1] = (unsigned char) (i & 0xff);
- data[SLOT_DATA_SIZE + 2] = (unsigned char) (i >> 8);
-
- // Chop up the data into parts that fits into the payload of a
- // feature report. Set the part number | 0x80 in the end
- // of the feature report. When the Yubikey has processed it,
- // it will clear this byte, signaling that the next part can be sent
-
- for (pos = 0, part = 0x80; pos < (SLOT_DATA_SIZE + 4); part++) {
-
- // Ignore parts that are all zeroes except first and last
- // to speed up the transfer
-
- for (i = j = 0; i < (FEATURE_RPT_SIZE - 1); i++) if (buf[i] = data[pos++]) j = 1;
- if (!j && (part > 0x80) && (pos < SLOT_DATA_SIZE)) continue;
-
- buf[i] = part;
-
- if (!hidSetReport(yk, REPORT_TYPE_FEATURE, 0, buf, FEATURE_RPT_SIZE)) return 0;
-
- // When the last byte in the feature report is cleared by
- // the Yubikey, the next part can be sent
-
- for (i = 0; i < 50; i++) {
- memset(buf, 0, sizeof(buf));
- if (!hidGetReport(yk, REPORT_TYPE_FEATURE, 0, buf, FEATURE_RPT_SIZE)) return 0;
- if (!buf[FEATURE_RPT_SIZE - 1]) break;
- sleep(10);
- }
-
- // If timeout, something has gone wrong
-
- if (i >= 50) return 0;
- }
-
- return 1;
-}
-
-/*************************************************************************
-** function ykWriteConfig **
-** Writes key config structure **
-** **
-** int ykGetStatus(YUBIKEY *yk, STATUS *status, unsigned char accCode) **
-** **
-** Where: **
-** "yk" is handle to open Yubikey **
-** "cfg" is pointer to configuration structure. NULL to zap **
-** "accCode" is current program access code. NULL if none **
-** **
-** Returns: Nonzero if successful, zero otherwise **
-** **
-*************************************************************************/
-
-int ykWriteConfig(YUBIKEY *yk, CONFIG *cfg, unsigned char *accCode)
-{
- unsigned char buf[sizeof(CONFIG) + ACC_CODE_SIZE];
- STATUS stat;
- int seq;
-
- // Get current seqence # from status block
-
- if (!ykGetStatus(yk, &stat, 0)) return 0;
-
- seq = stat.pgmSeq;
-
- // Update checksum and insert config block in buffer if present
-
- memset(buf, 0, sizeof(buf));
-
- if (cfg) {
- cfg->crc = ~getCRC((unsigned char *) cfg, sizeof(CONFIG) - sizeof(cfg->crc));
- ENDIAN_SWAP(cfg->crc);
- memcpy(buf, cfg, sizeof(CONFIG));
- }
-
- // Append current access code if present
-
- if (accCode) memcpy(buf + sizeof(CONFIG), accCode, ACC_CODE_SIZE);
-
- // Write to Yubikey
-
- if (!ykWriteSlot(yk, SLOT_CONFIG, buf, sizeof(buf))) return 0;
-
- // Verify update
-
- if (!ykGetStatus(yk, &stat, 0)) return 0;
-
- if (cfg) return stat.pgmSeq != seq;
-
- return stat.pgmSeq == 0;
-}
projects / yubikey-personalization / commitdiff