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Diffstat (limited to 'examples/cipher.c')
| -rw-r--r-- | examples/cipher.c | 230 |
1 files changed, 0 insertions, 230 deletions
diff --git a/examples/cipher.c b/examples/cipher.c deleted file mode 100644 index 52b4996f4a6..00000000000 --- a/examples/cipher.c +++ /dev/null @@ -1,230 +0,0 @@ -/* - * Demo on how to use /dev/crypto device for ciphering. - * - * Placed under public domain. - * - */ -#include <stdint.h> -#include <stdio.h> -#include <string.h> -#include <unistd.h> -#include <fcntl.h> - -#include <sys/ioctl.h> -#include "../cryptodev.h" - -#define DATA_SIZE 4096 -#define BLOCK_SIZE 16 -#define KEY_SIZE 16 - -static int -test_crypto(int cfd) -{ - uint8_t plaintext[DATA_SIZE]; - uint8_t ciphertext[DATA_SIZE]; - uint8_t iv[BLOCK_SIZE]; - uint8_t key[KEY_SIZE]; - - struct session_op sess; - struct crypt_op cryp; - - memset(&sess, 0, sizeof(sess)); - memset(&cryp, 0, sizeof(cryp)); - - memset(plaintext, 0x15, sizeof(plaintext)); - memset(key, 0x33, sizeof(key)); - memset(iv, 0x03, sizeof(iv)); - - /* Get crypto session for AES128 */ - sess.cipher = CRYPTO_AES_CBC; - sess.keylen = KEY_SIZE; - sess.key = key; - if (ioctl(cfd, CIOCGSESSION, &sess)) { - perror("ioctl(CIOCGSESSION)"); - return 1; - } - - /* Encrypt data.in to data.encrypted */ - cryp.ses = sess.ses; - cryp.len = sizeof(plaintext); - cryp.src = plaintext; - cryp.dst = ciphertext; - cryp.iv = iv; - cryp.op = COP_ENCRYPT; - if (ioctl(cfd, CIOCCRYPT, &cryp)) { - perror("ioctl(CIOCCRYPT)"); - return 1; - } - - if (ioctl(cfd, CIOCGSESSION, &sess)) { - perror("ioctl(CIOCGSESSION)"); - return 1; - } - - /* Decrypt data.encrypted to data.decrypted */ - cryp.ses = sess.ses; - cryp.len = sizeof(plaintext); - cryp.src = ciphertext; - cryp.dst = ciphertext; - cryp.iv = iv; - cryp.op = COP_DECRYPT; - if (ioctl(cfd, CIOCCRYPT, &cryp)) { - perror("ioctl(CIOCCRYPT)"); - return 1; - } - - /* Verify the result */ - if (memcmp(plaintext, ciphertext, sizeof(plaintext)) != 0) { - fprintf(stderr, - "FAIL: Decrypted data are different from the input data.\n"); - return 1; - } else - printf("Test passed\n"); - - /* Finish crypto session */ - if (ioctl(cfd, CIOCFSESSION, &sess.ses)) { - perror("ioctl(CIOCFSESSION)"); - return 1; - } - - return 0; -} - -static int test_aes(int cfd) -{ - uint8_t plaintext1[BLOCK_SIZE]; - uint8_t ciphertext1[BLOCK_SIZE] = { 0xdf, 0x55, 0x6a, 0x33, 0x43, 0x8d, 0xb8, 0x7b, 0xc4, 0x1b, 0x17, 0x52, 0xc5, 0x5e, 0x5e, 0x49 }; - uint8_t iv1[BLOCK_SIZE]; - uint8_t key1[KEY_SIZE] = { 0xff, 0xff, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; - uint8_t plaintext2[BLOCK_SIZE] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 0x00 }; - uint8_t ciphertext2[BLOCK_SIZE] = { 0xb7, 0x97, 0x2b, 0x39, 0x41, 0xc4, 0x4b, 0x90, 0xaf, 0xa7, 0xb2, 0x64, 0xbf, 0xba, 0x73, 0x87 }; - uint8_t iv2[BLOCK_SIZE]; - uint8_t key2[KEY_SIZE]; - - struct session_op sess; - struct crypt_op cryp; - - memset(&sess, 0, sizeof(sess)); - memset(&cryp, 0, sizeof(cryp)); - - memset(plaintext1, 0x0, sizeof(plaintext1)); - memset(iv1, 0x0, sizeof(iv1)); - - /* Get crypto session for AES128 */ - sess.cipher = CRYPTO_AES_CBC; - sess.keylen = KEY_SIZE; - sess.key = key1; - if (ioctl(cfd, CIOCGSESSION, &sess)) { - perror("ioctl(CIOCGSESSION)"); - return 1; - } - - /* Encrypt data.in to data.encrypted */ - cryp.ses = sess.ses; - cryp.len = sizeof(plaintext1); - cryp.src = plaintext1; - cryp.dst = plaintext1; - cryp.iv = iv1; - cryp.op = COP_ENCRYPT; - if (ioctl(cfd, CIOCCRYPT, &cryp)) { - perror("ioctl(CIOCCRYPT)"); - return 1; - } - - /* Verify the result */ - if (memcmp(plaintext1, ciphertext1, sizeof(plaintext1)) != 0) { - fprintf(stderr, - "FAIL: Decrypted data are different from the input data.\n"); - return 1; - } - - /* Test 2 */ - - memset(key2, 0x0, sizeof(key2)); - memset(iv2, 0x0, sizeof(iv2)); - - /* Get crypto session for AES128 */ - sess.cipher = CRYPTO_AES_CBC; - sess.keylen = KEY_SIZE; - sess.key = key2; - if (ioctl(cfd, CIOCGSESSION, &sess)) { - perror("ioctl(CIOCGSESSION)"); - return 1; - } - - /* Encrypt data.in to data.encrypted */ - cryp.ses = sess.ses; - cryp.len = sizeof(plaintext2); - cryp.src = plaintext2; - cryp.dst = plaintext2; - cryp.iv = iv2; - cryp.op = COP_ENCRYPT; - if (ioctl(cfd, CIOCCRYPT, &cryp)) { - perror("ioctl(CIOCCRYPT)"); - return 1; - } - - /* Verify the result */ - if (memcmp(plaintext2, ciphertext2, sizeof(plaintext2)) != 0) { - fprintf(stderr, - "FAIL: Decrypted data are different from the input data.\n"); - return 1; - } - - printf("AES Test passed\n"); - - /* Finish crypto session */ - if (ioctl(cfd, CIOCFSESSION, &sess.ses)) { - perror("ioctl(CIOCFSESSION)"); - return 1; - } - - return 0; -} - -int -main() -{ - int fd = -1, cfd = -1; - - /* Open the crypto device */ - fd = open("/dev/crypto", O_RDWR, 0); - if (fd < 0) { - perror("open(/dev/crypto)"); - return 1; - } - - /* Clone file descriptor */ - if (ioctl(fd, CRIOGET, &cfd)) { - perror("ioctl(CRIOGET)"); - return 1; - } - - /* Set close-on-exec (not really neede here) */ - if (fcntl(cfd, F_SETFD, 1) == -1) { - perror("fcntl(F_SETFD)"); - return 1; - } - - /* Run the test itself */ - if (test_aes(cfd)) - return 1; - - if (test_crypto(cfd)) - return 1; - - /* Close cloned descriptor */ - if (close(cfd)) { - perror("close(cfd)"); - return 1; - } - - /* Close the original descriptor */ - if (close(fd)) { - perror("close(fd)"); - return 1; - } - - return 0; -} - |