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Copy pathaes-cbc-selftest.c
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aes-cbc-selftest.c
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <openssl/evp.h>
#include <unistd.h>
#include <sys/socket.h>
#include <linux/if_alg.h>
#include <linux/socket.h>
#include "common.h"
int aes_cbc_afalg(char *input_buf, char *key_buf, char *iv_buf, char *alafg_buf)
{
int i;
int opfd;
int tfmfd;
struct sockaddr_alg sa = {
.salg_family = AF_ALG,
.salg_type = "skcipher",
.salg_name = "cbc(aes)"
};
struct msghdr msg = {};
struct cmsghdr *cmsg;
char cbuf[CMSG_SPACE(4) + CMSG_SPACE(20)] = {0};
struct af_alg_iv *iv;
struct iovec iov;
tfmfd = socket(AF_ALG, SOCK_SEQPACKET, 0);
bind(tfmfd, (struct sockaddr *)&sa, sizeof(sa));
setsockopt(tfmfd, SOL_ALG, ALG_SET_KEY, key_buf, 16);
opfd = accept(tfmfd, NULL, 0);
msg.msg_control = cbuf;
msg.msg_controllen = sizeof(cbuf);
cmsg = CMSG_FIRSTHDR(&msg);
cmsg->cmsg_level = SOL_ALG;
cmsg->cmsg_type = ALG_SET_OP;
cmsg->cmsg_len = CMSG_LEN(4);
*(__u32 *)CMSG_DATA(cmsg) = ALG_OP_ENCRYPT;
cmsg = CMSG_NXTHDR(&msg, cmsg);
cmsg->cmsg_level = SOL_ALG;
cmsg->cmsg_type = ALG_SET_IV;
cmsg->cmsg_len = CMSG_LEN(20);
iv = (void *)CMSG_DATA(cmsg);
iv->ivlen = 16;
memcpy(iv->iv, iv_buf, 16);
iov.iov_base = input_buf;
iov.iov_len = 64;
msg.msg_iov = &iov;
msg.msg_iovlen = 1;
sendmsg(opfd, &msg, 0);
read(opfd, alafg_buf, 64);
#ifdef PRINT
printf("AF_ALG RESULT:\n");
for (i = 0; i < 64; i++) {
printf("%02x ", (unsigned char)alafg_buf[i]);
}
printf("\n");
#endif
close(opfd);
close(tfmfd);
return 0;
}
int aes_cbc_afalg_de(char *input_buf, char *key_buf, char *iv_buf, char *alafg_buf)
{
int i;
int opfd;
int tfmfd;
struct sockaddr_alg sa = {
.salg_family = AF_ALG,
.salg_type = "skcipher",
.salg_name = "cbc(aes)"
};
struct msghdr msg = {};
struct cmsghdr *cmsg;
char cbuf[CMSG_SPACE(4) + CMSG_SPACE(20)] = {0};
struct af_alg_iv *iv;
struct iovec iov;
tfmfd = socket(AF_ALG, SOCK_SEQPACKET, 0);
bind(tfmfd, (struct sockaddr *)&sa, sizeof(sa));
setsockopt(tfmfd, SOL_ALG, ALG_SET_KEY, key_buf, 16);
opfd = accept(tfmfd, NULL, 0);
msg.msg_control = cbuf;
msg.msg_controllen = sizeof(cbuf);
cmsg = CMSG_FIRSTHDR(&msg);
cmsg->cmsg_level = SOL_ALG;
cmsg->cmsg_type = ALG_SET_OP;
cmsg->cmsg_len = CMSG_LEN(4);
*(__u32 *)CMSG_DATA(cmsg) = ALG_OP_DECRYPT;
cmsg = CMSG_NXTHDR(&msg, cmsg);
cmsg->cmsg_level = SOL_ALG;
cmsg->cmsg_type = ALG_SET_IV;
cmsg->cmsg_len = CMSG_LEN(20);
iv = (void *)CMSG_DATA(cmsg);
iv->ivlen = 16;
memcpy(iv->iv, iv_buf, 16);
iov.iov_base = input_buf;
iov.iov_len = 64;
msg.msg_iov = &iov;
msg.msg_iovlen = 1;
sendmsg(opfd, &msg, 0);
read(opfd, alafg_buf, 64);
#ifdef PRINT
printf("AF_ALG RESULT:\n");
for (i = 0; i < 64; i++) {
printf("%02x ", (unsigned char)alafg_buf[i]);
}
printf("\n");
#endif
close(opfd);
close(tfmfd);
return 0;
}
int aes_cbc_test()
{
int ret;
char alafg_buf[64];
char de_buf[64];
char key_buf[16];
char iv_buf[16];
char input_buf[64];
for (int i = 0; i < 100; ++i)
{
rand_array(key_buf, 16);
rand_array(iv_buf, 16);
rand_array(input_buf, 64);
aes_cbc_afalg(input_buf, key_buf, iv_buf, alafg_buf);
aes_cbc_afalg_de(alafg_buf, key_buf, iv_buf, de_buf);
ret = array_equal(input_buf, de_buf, 64);
if (ret < 0)
{
printf("AES-CBC ERROR: AFALG AND OPENSSL RESULTS DIFFER\n");
return -1;
}
}
printf("AES-CBC PASS\n");
return 0;
}
int main()
{
aes_cbc_test();
}