EVP_CIPHER_CTX *FIPS_cipher_ctx_new(void)
{
EVP_CIPHER_CTX *ctx=OPENSSL_malloc(sizeof *ctx);
if (ctx)
FIPS_cipher_ctx_init(ctx);
return ctx;
}
static void gcmtest(FILE *in, FILE *out, int encrypt)
{
char *keyword, *value;
int keylen = -1, ivlen = -1, aadlen = -1, taglen = -1, ptlen = -1;
int rv;
long l;
unsigned char *key = NULL, *iv = NULL, *aad = NULL, *tag = NULL;
unsigned char *ct = NULL, *pt = NULL;
EVP_CIPHER_CTX ctx;
const EVP_CIPHER *gcm = NULL;
FIPS_cipher_ctx_init(&ctx);
while(fgets(buf,sizeof buf,in) != NULL)
{
fputs(buf,out);
if (!parse_line(&keyword, &value, lbuf, buf))
continue;
if(!strcmp(keyword,"[Keylen"))
{
keylen = atoi(value);
if (keylen == 128)
gcm = EVP_aes_128_gcm();
else if (keylen == 192)
gcm = EVP_aes_192_gcm();
else if (keylen == 256)
gcm = EVP_aes_256_gcm();
else
{
fprintf(stderr, "Unsupported keylen %d\n",
keylen);
}
keylen >>= 3;
}
else if (!strcmp(keyword, "[IVlen"))
static int FIPS_aes_gcm_test(void)
{
int ret = 0;
unsigned char pltmp[16];
unsigned char citmp[16];
unsigned char tagtmp[16];
unsigned char key[16] = {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16};
unsigned char iv[16] = {21,22,23,24,25,26,27,28,29,30,31,32};
unsigned char aad[] = "Some text AAD";
unsigned char plaintext[16] = "etaonrishdlcu";
EVP_CIPHER_CTX ctx;
FIPS_cipher_ctx_init(&ctx);
if (FIPS_cipherinit(&ctx, EVP_aes_128_gcm(), key, iv, 1) <= 0)
goto err;
FIPS_cipher(&ctx, NULL, aad, sizeof(aad));
FIPS_cipher(&ctx, citmp, plaintext, 16);
FIPS_cipher(&ctx, NULL, NULL, 0);
if (!FIPS_cipher_ctx_ctrl(&ctx, EVP_CTRL_GCM_GET_TAG, 16, tagtmp))
goto err;
if (FIPS_cipherinit(&ctx, EVP_aes_128_gcm(), key, iv, 0) <= 0)
goto err;
if (!FIPS_cipher_ctx_ctrl(&ctx, EVP_CTRL_GCM_SET_TAG, 16, tagtmp))
goto err;
FIPS_cipher(&ctx, NULL, aad, sizeof(aad));
FIPS_cipher(&ctx, pltmp, citmp, 16);
if (FIPS_cipher(&ctx, NULL, NULL, 0) < 0)
goto err;
if (memcmp(pltmp, plaintext, 16))
goto err;
ret = 1;
err:
FIPS_cipher_ctx_cleanup(&ctx);
return ret;
}
int FIPS_selftest_des()
{
int n, ret = 0;
EVP_CIPHER_CTX ctx;
FIPS_cipher_ctx_init(&ctx);
/* Encrypt/decrypt with 3DES and compare to known answers */
for(n=0 ; n < 2 ; ++n)
{
if (!fips_cipher_test(FIPS_TEST_CIPHER, &ctx, EVP_des_ede3_ecb(),
tests3[n].key, NULL,
tests3[n].plaintext, tests3[n].ciphertext, 8))
goto err;
}
ret = 1;
err:
FIPS_cipher_ctx_cleanup(&ctx);
if (ret == 0)
FIPSerr(FIPS_F_FIPS_SELFTEST_DES,FIPS_R_SELFTEST_FAILED);
return ret;
}
/* AES: encrypt and decrypt known plaintext, verify result matches original plaintext
*/
static int FIPS_aes_test(void)
{
int ret = 0;
unsigned char pltmp[16];
unsigned char citmp[16];
unsigned char key[16] = { 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16};
unsigned char plaintext[16] = "etaonrishdlcu";
EVP_CIPHER_CTX ctx;
FIPS_cipher_ctx_init(&ctx);
if (FIPS_cipherinit(&ctx, EVP_aes_128_ecb(), key, NULL, 1) <= 0)
goto err;
FIPS_cipher(&ctx, citmp, plaintext, 16);
if (FIPS_cipherinit(&ctx, EVP_aes_128_ecb(), key, NULL, 0) <= 0)
goto err;
FIPS_cipher(&ctx, pltmp, citmp, 16);
if (memcmp(pltmp, plaintext, 16))
goto err;
ret = 1;
err:
FIPS_cipher_ctx_cleanup(&ctx);
return ret;
}
static int FIPS_des3_test(void)
{
int ret = 0;
unsigned char pltmp[8];
unsigned char citmp[8];
unsigned char key[] = { 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,
19,20,21,22,23,24
};
unsigned char plaintext[] = { 'e', 't', 'a', 'o', 'n', 'r', 'i', 's' };
EVP_CIPHER_CTX ctx;
FIPS_cipher_ctx_init(&ctx);
if (FIPS_cipherinit(&ctx, EVP_des_ede3_ecb(), key, NULL, 1) <= 0)
goto err;
FIPS_cipher(&ctx, citmp, plaintext, 8);
if (FIPS_cipherinit(&ctx, EVP_des_ede3_ecb(), key, NULL, 0) <= 0)
goto err;
FIPS_cipher(&ctx, pltmp, citmp, 8);
if (memcmp(pltmp, plaintext, 8))
goto err;
ret = 1;
err:
FIPS_cipher_ctx_cleanup(&ctx);
return ret;
}
static int proc_file(char *rqfile, char *rspfile)
{
char afn[256], rfn[256];
FILE *afp = NULL, *rfp = NULL;
char ibuf[2048];
char tbuf[2048];
int ilen, len, ret = 0;
char algo[8] = "";
char amode[8] = "";
char atest[8] = "";
int akeysz = 0;
unsigned char iVec[20], aKey[40];
int dir = -1, err = 0, step = 0;
unsigned char plaintext[2048];
unsigned char ciphertext[2048];
char *rp;
EVP_CIPHER_CTX ctx;
FIPS_cipher_ctx_init(&ctx);
if (!rqfile || !(*rqfile))
{
printf("No req file\n");
return -1;
}
strcpy(afn, rqfile);
if ((afp = fopen(afn, "r")) == NULL)
{
printf("Cannot open file: %s, %s\n",
afn, strerror(errno));
return -1;
}
if (!rspfile)
{
strcpy(rfn,afn);
rp=strstr(rfn,"req/");
#ifdef OPENSSL_SYS_WIN32
if (!rp)
rp=strstr(rfn,"req\\");
#endif
assert(rp);
memcpy(rp,"rsp",3);
rp = strstr(rfn, ".req");
memcpy(rp, ".rsp", 4);
rspfile = rfn;
}
if ((rfp = fopen(rspfile, "w")) == NULL)
{
printf("Cannot open file: %s, %s\n",
rfn, strerror(errno));
fclose(afp);
afp = NULL;
return -1;
}
while (!err && (fgets(ibuf, sizeof(ibuf), afp)) != NULL)
{
tidy_line(tbuf, ibuf);
ilen = strlen(ibuf);
/* printf("step=%d ibuf=%s",step,ibuf); */
switch (step)
{
case 0: /* read preamble */
if (ibuf[0] == '\n')
{ /* end of preamble */
if ((*algo == '\0') ||
(*amode == '\0') ||
(akeysz == 0))
{
printf("Missing Algorithm, Mode or KeySize (%s/%s/%d)\n",
algo,amode,akeysz);
err = 1;
}
else
{
fputs(ibuf, rfp);
++ step;
}
}
else if (ibuf[0] != '#')
{
printf("Invalid preamble item: %s\n", ibuf);
err = 1;
}
else
{ /* process preamble */
char *xp, *pp = ibuf+2;
int n;
if (akeysz)
{ /* insert current time & date */
time_t rtim = time(0);
fprintf(rfp, "# %s", ctime(&rtim));
}
else
{
fputs(ibuf, rfp);
if (strncmp(pp, "AESVS ", 6) == 0)
{
strcpy(algo, "AES");
/* get test type */
pp += 6;
xp = strchr(pp, ' ');
n = xp-pp;
strncpy(atest, pp, n);
atest[n] = '\0';
/* get mode */
xp = strrchr(pp, ' '); /* get mode" */
n = strlen(xp+1)-1;
strncpy(amode, xp+1, n);
amode[n] = '\0';
/* amode[3] = '\0'; */
if (VERBOSE)
printf("Test = %s, Mode = %s\n", atest, amode);
}
else if (strncasecmp(pp, "Key Length : ", 13) == 0)
{
akeysz = atoi(pp+13);
if (VERBOSE)
printf("Key size = %d\n", akeysz);
}
}
}
break;
case 1: /* [ENCRYPT] | [DECRYPT] */
if (ibuf[0] == '[')
{
fputs(ibuf, rfp);
++step;
if (strncasecmp(ibuf, "[ENCRYPT]", 9) == 0)
dir = 1;
else if (strncasecmp(ibuf, "[DECRYPT]", 9) == 0)
dir = 0;
else
{
printf("Invalid keyword: %s\n", ibuf);
err = 1;
}
break;
}
else if (dir == -1)
{
err = 1;
printf("Missing ENCRYPT/DECRYPT keyword\n");
break;
}
else
step = 2;
case 2: /* KEY = xxxx */
fputs(ibuf, rfp);
if(*ibuf == '\n')
break;
if(!strncasecmp(ibuf,"COUNT = ",8))
break;
if (strncasecmp(ibuf, "KEY = ", 6) != 0)
{
printf("Missing KEY\n");
err = 1;
}
else
{
len = hex2bin((char*)ibuf+6, aKey);
if (len < 0)
{
printf("Invalid KEY\n");
err =1;
break;
}
PrintValue("KEY", aKey, len);
if (strcmp(amode, "ECB") == 0)
{
memset(iVec, 0, sizeof(iVec));
step = (dir)? 4: 5; /* no ivec for ECB */
}
else
++step;
}
break;
case 3: /* IV = xxxx */
fputs(ibuf, rfp);
if (strncasecmp(ibuf, "IV = ", 5) != 0)
{
printf("Missing IV\n");
err = 1;
}
else
{
len = hex2bin((char*)ibuf+5, iVec);
if (len < 0)
{
printf("Invalid IV\n");
err =1;
break;
}
PrintValue("IV", iVec, len);
step = (dir)? 4: 5;
}
break;
case 4: /* PLAINTEXT = xxxx */
fputs(ibuf, rfp);
if (strncasecmp(ibuf, "PLAINTEXT = ", 12) != 0)
{
printf("Missing PLAINTEXT\n");
err = 1;
}
else
{
int nn = strlen(ibuf+12);
if(!strcmp(amode,"CFB1"))
len=bint2bin(ibuf+12,nn-1,plaintext);
else
len=hex2bin(ibuf+12, plaintext);
if (len < 0)
{
printf("Invalid PLAINTEXT: %s", ibuf+12);
err =1;
break;
}
if (len >= (int)sizeof(plaintext))
{
printf("Buffer overflow\n");
}
PrintValue("PLAINTEXT", (unsigned char*)plaintext, len);
if (strcmp(atest, "MCT") == 0) /* Monte Carlo Test */
{
if(do_mct(amode, akeysz, aKey, iVec,
dir, (unsigned char*)plaintext, len,
rfp) < 0)
EXIT(1);
}
else
{
ret = AESTest(&ctx, amode, akeysz, aKey, iVec,
dir, /* 0 = decrypt, 1 = encrypt */
plaintext, ciphertext, len);
OutputValue("CIPHERTEXT",ciphertext,len,rfp,
!strcmp(amode,"CFB1"));
}
step = 6;
}
break;
case 5: /* CIPHERTEXT = xxxx */
fputs(ibuf, rfp);
if (strncasecmp(ibuf, "CIPHERTEXT = ", 13) != 0)
{
printf("Missing KEY\n");
err = 1;
}
else
{
if(!strcmp(amode,"CFB1"))
len=bint2bin(ibuf+13,strlen(ibuf+13)-1,ciphertext);
else
len = hex2bin(ibuf+13,ciphertext);
if (len < 0)
{
printf("Invalid CIPHERTEXT\n");
err =1;
break;
}
PrintValue("CIPHERTEXT", ciphertext, len);
if (strcmp(atest, "MCT") == 0) /* Monte Carlo Test */
{
do_mct(amode, akeysz, aKey, iVec,
dir, ciphertext, len, rfp);
}
else
{
ret = AESTest(&ctx, amode, akeysz, aKey, iVec,
dir, /* 0 = decrypt, 1 = encrypt */
plaintext, ciphertext, len);
OutputValue("PLAINTEXT",(unsigned char *)plaintext,len,rfp,
!strcmp(amode,"CFB1"));
}
step = 6;
}
break;
case 6:
if (ibuf[0] != '\n')
{
err = 1;
printf("Missing terminator\n");
}
else if (strcmp(atest, "MCT") != 0)
{ /* MCT already added terminating nl */
fputs(ibuf, rfp);
}
step = 1;
break;
}
}
if (rfp)
fclose(rfp);
if (afp)
fclose(afp);
return err;
}
static int do_mct(char *amode,
int akeysz, unsigned char *aKey,unsigned char *iVec,
int dir, unsigned char *text, int len,
FILE *rfp)
{
int ret = 0;
unsigned char key[101][32];
unsigned char iv[101][AES_BLOCK_SIZE];
unsigned char ptext[1001][32];
unsigned char ctext[1001][32];
unsigned char ciphertext[64+4];
int i, j, n, n1, n2;
int imode = 0, nkeysz = akeysz/8;
EVP_CIPHER_CTX ctx;
FIPS_cipher_ctx_init(&ctx);
if (len > 32)
{
printf("\n>>>> Length exceeds 32 for %s %d <<<<\n\n",
amode, akeysz);
return -1;
}
for (imode = 0; imode < 6; ++imode)
if (strcmp(amode, t_mode[imode]) == 0)
break;
if (imode == 6)
{
printf("Unrecognized mode: %s\n", amode);
return -1;
}
memcpy(key[0], aKey, nkeysz);
if (iVec)
memcpy(iv[0], iVec, AES_BLOCK_SIZE);
if (dir == XENCRYPT)
memcpy(ptext[0], text, len);
else
memcpy(ctext[0], text, len);
for (i = 0; i < 100; ++i)
{
/* printf("Iteration %d\n", i); */
if (i > 0)
{
fprintf(rfp,"COUNT = %d\n",i);
OutputValue("KEY",key[i],nkeysz,rfp,0);
if (imode != ECB) /* ECB */
OutputValue("IV",iv[i],AES_BLOCK_SIZE,rfp,0);
/* Output Ciphertext | Plaintext */
OutputValue(t_tag[dir^1],dir ? ptext[0] : ctext[0],len,rfp,
imode == CFB1);
}
for (j = 0; j < 1000; ++j)
{
switch (imode)
{
case ECB:
if (j == 0)
{ /* set up encryption */
ret = AESTest(&ctx, amode, akeysz, key[i], NULL,
dir, /* 0 = decrypt, 1 = encrypt */
ptext[j], ctext[j], len);
if (dir == XENCRYPT)
memcpy(ptext[j+1], ctext[j], len);
else
memcpy(ctext[j+1], ptext[j], len);
}
else
{
if (dir == XENCRYPT)
{
FIPS_cipher(&ctx, ctext[j], ptext[j], len);
memcpy(ptext[j+1], ctext[j], len);
}
else
{
FIPS_cipher(&ctx, ptext[j], ctext[j], len);
memcpy(ctext[j+1], ptext[j], len);
}
}
break;
case CBC:
case OFB:
case CFB128:
if (j == 0)
{
ret = AESTest(&ctx, amode, akeysz, key[i], iv[i],
dir, /* 0 = decrypt, 1 = encrypt */
ptext[j], ctext[j], len);
if (dir == XENCRYPT)
memcpy(ptext[j+1], iv[i], len);
else
memcpy(ctext[j+1], iv[i], len);
}
else
{
if (dir == XENCRYPT)
{
FIPS_cipher(&ctx, ctext[j], ptext[j], len);
memcpy(ptext[j+1], ctext[j-1], len);
}
else
{
FIPS_cipher(&ctx, ptext[j], ctext[j], len);
memcpy(ctext[j+1], ptext[j-1], len);
}
}
break;
case CFB8:
if (j == 0)
{
ret = AESTest(&ctx, amode, akeysz, key[i], iv[i],
dir, /* 0 = decrypt, 1 = encrypt */
ptext[j], ctext[j], len);
}
else
{
if (dir == XENCRYPT)
FIPS_cipher(&ctx, ctext[j], ptext[j], len);
else
FIPS_cipher(&ctx, ptext[j], ctext[j], len);
}
if (dir == XENCRYPT)
{
if (j < 16)
memcpy(ptext[j+1], &iv[i][j], len);
else
memcpy(ptext[j+1], ctext[j-16], len);
}
else
{
if (j < 16)
memcpy(ctext[j+1], &iv[i][j], len);
else
memcpy(ctext[j+1], ptext[j-16], len);
}
break;
case CFB1:
if(j == 0)
{
#if 0
/* compensate for wrong endianness of input file */
if(i == 0)
ptext[0][0]<<=7;
#endif
ret = AESTest(&ctx,amode,akeysz,key[i],iv[i],dir,
ptext[j], ctext[j], len);
}
else
{
if (dir == XENCRYPT)
FIPS_cipher(&ctx, ctext[j], ptext[j], len);
else
FIPS_cipher(&ctx, ptext[j], ctext[j], len);
}
if(dir == XENCRYPT)
{
if(j < 128)
sb(ptext[j+1],0,gb(iv[i],j));
else
sb(ptext[j+1],0,gb(ctext[j-128],0));
}
else
{
if(j < 128)
sb(ctext[j+1],0,gb(iv[i],j));
else
sb(ctext[j+1],0,gb(ptext[j-128],0));
}
break;
}
}
--j; /* reset to last of range */
/* Output Ciphertext | Plaintext */
OutputValue(t_tag[dir],dir ? ctext[j] : ptext[j],len,rfp,
imode == CFB1);
fprintf(rfp, "\n"); /* add separator */
/* Compute next KEY */
if (dir == XENCRYPT)
{
if (imode == CFB8)
{ /* ct = CT[j-15] || CT[j-14] || ... || CT[j] */
for (n1 = 0, n2 = nkeysz-1; n1 < nkeysz; ++n1, --n2)
ciphertext[n1] = ctext[j-n2][0];
}
else if(imode == CFB1)
{
for(n1=0,n2=akeysz-1 ; n1 < akeysz ; ++n1,--n2)
sb(ciphertext,n1,gb(ctext[j-n2],0));
}
else
switch (akeysz)
{
case 128:
memcpy(ciphertext, ctext[j], 16);
break;
case 192:
memcpy(ciphertext, ctext[j-1]+8, 8);
memcpy(ciphertext+8, ctext[j], 16);
break;
case 256:
memcpy(ciphertext, ctext[j-1], 16);
memcpy(ciphertext+16, ctext[j], 16);
break;
}
}
else
{
if (imode == CFB8)
{ /* ct = CT[j-15] || CT[j-14] || ... || CT[j] */
for (n1 = 0, n2 = nkeysz-1; n1 < nkeysz; ++n1, --n2)
ciphertext[n1] = ptext[j-n2][0];
}
else if(imode == CFB1)
{
for(n1=0,n2=akeysz-1 ; n1 < akeysz ; ++n1,--n2)
sb(ciphertext,n1,gb(ptext[j-n2],0));
}
else
switch (akeysz)
{
case 128:
memcpy(ciphertext, ptext[j], 16);
break;
case 192:
memcpy(ciphertext, ptext[j-1]+8, 8);
memcpy(ciphertext+8, ptext[j], 16);
break;
case 256:
memcpy(ciphertext, ptext[j-1], 16);
memcpy(ciphertext+16, ptext[j], 16);
break;
}
}
/* Compute next key: Key[i+1] = Key[i] xor ct */
for (n = 0; n < nkeysz; ++n)
key[i+1][n] = key[i][n] ^ ciphertext[n];
/* Compute next IV and text */
if (dir == XENCRYPT)
{
switch (imode)
{
case ECB:
memcpy(ptext[0], ctext[j], AES_BLOCK_SIZE);
break;
case CBC:
case OFB:
case CFB128:
memcpy(iv[i+1], ctext[j], AES_BLOCK_SIZE);
memcpy(ptext[0], ctext[j-1], AES_BLOCK_SIZE);
break;
case CFB8:
/* IV[i+1] = ct */
for (n1 = 0, n2 = 15; n1 < 16; ++n1, --n2)
iv[i+1][n1] = ctext[j-n2][0];
ptext[0][0] = ctext[j-16][0];
break;
case CFB1:
for(n1=0,n2=127 ; n1 < 128 ; ++n1,--n2)
sb(iv[i+1],n1,gb(ctext[j-n2],0));
ptext[0][0]=ctext[j-128][0]&0x80;
break;
}
}
else
{
switch (imode)
{
case ECB:
memcpy(ctext[0], ptext[j], AES_BLOCK_SIZE);
break;
case CBC:
case OFB:
case CFB128:
memcpy(iv[i+1], ptext[j], AES_BLOCK_SIZE);
memcpy(ctext[0], ptext[j-1], AES_BLOCK_SIZE);
break;
case CFB8:
for (n1 = 0, n2 = 15; n1 < 16; ++n1, --n2)
iv[i+1][n1] = ptext[j-n2][0];
ctext[0][0] = ptext[j-16][0];
break;
case CFB1:
for(n1=0,n2=127 ; n1 < 128 ; ++n1,--n2)
sb(iv[i+1],n1,gb(ptext[j-n2],0));
ctext[0][0]=ptext[j-128][0]&0x80;
break;
}
}
}
return ret;
}
