static int pbkdf2_encrypt(
const struct berval *scheme,
const struct berval *passwd,
struct berval *msg,
const char **text)
{
unsigned char salt_value[PBKDF2_SALT_SIZE];
struct berval salt;
unsigned char dk_value[PBKDF2_DK_SIZE];
struct berval dk;
int iteration = PBKDF2_ITERATION;
dk.bv_val = (char *)dk_value;
dk.bv_len = PBKDF2_DK_SIZE;
salt.bv_val = (char *)salt_value;
salt.bv_len = sizeof(salt_value);
if(lutil_entropy((unsigned char *)salt.bv_val, salt.bv_len) < 0){
return LUTIL_PASSWD_ERR;
}
if(!PKCS5_PBKDF2_HMAC_SHA1(passwd->bv_val, passwd->bv_len,
(unsigned char *)salt.bv_val, salt.bv_len,
iteration, PBKDF2_DK_SIZE, dk_value)){
return LUTIL_PASSWD_ERR;
}
#ifdef SLAPD_PBKDF2_DEBUG
printf("DEBUG pbkdf2_encrypt()\n");
printf(" Password:\t%s\n", passwd->bv_val);
printf(" Salt:\t\t");
int i;
for(i=0; i<salt.bv_len; i++){
printf("%02x", salt_value[i]);
}
printf("\n");
printf(" Iteration:\t%d\n", iteration);
printf(" DK:\t\t");
for(i=0; i<PBKDF2_DK_SIZE; i++){
printf("%02x", dk_value[i]);
}
printf("\n");
#endif
return pbkdf2_format(scheme, iteration, &salt, &dk, msg);
}
static int pbkdf2_encrypt(
const struct berval *scheme,
const struct berval *passwd,
struct berval *msg,
const char **text)
{
unsigned char salt_value[PBKDF2_SALT_SIZE];
struct berval salt;
unsigned char dk_value[PBKDF2_MAX_DK_SIZE];
struct berval dk;
int iteration = PBKDF2_ITERATION;
int rc;
#ifdef HAVE_OPENSSL
const EVP_MD *md;
#elif HAVE_GNUTLS
struct hmac_sha1_ctx sha1_ctx;
struct hmac_sha256_ctx sha256_ctx;
struct hmac_sha512_ctx sha512_ctx;
void * current_ctx = NULL;
pbkdf2_hmac_update current_hmac_update = NULL;
pbkdf2_hmac_digest current_hmac_digest = NULL;
#endif
salt.bv_val = (char *)salt_value;
salt.bv_len = sizeof(salt_value);
dk.bv_val = (char *)dk_value;
#ifdef HAVE_OPENSSL
if(!ber_bvcmp(scheme, &pbkdf2_scheme)){
dk.bv_len = PBKDF2_SHA1_DK_SIZE;
md = EVP_sha1();
}else if(!ber_bvcmp(scheme, &pbkdf2_sha1_scheme)){
dk.bv_len = PBKDF2_SHA1_DK_SIZE;
md = EVP_sha1();
}else if(!ber_bvcmp(scheme, &pbkdf2_sha256_scheme)){
dk.bv_len = PBKDF2_SHA256_DK_SIZE;
md = EVP_sha256();
}else if(!ber_bvcmp(scheme, &pbkdf2_sha512_scheme)){
dk.bv_len = PBKDF2_SHA512_DK_SIZE;
md = EVP_sha512();
}else{
return LUTIL_PASSWD_ERR;
}
#elif HAVE_GNUTLS
if(!ber_bvcmp(scheme, &pbkdf2_scheme)){
dk.bv_len = PBKDF2_SHA1_DK_SIZE;
current_ctx = &sha1_ctx;
current_hmac_update = (pbkdf2_hmac_update) &hmac_sha1_update;
current_hmac_digest = (pbkdf2_hmac_digest) &hmac_sha1_digest;
hmac_sha1_set_key(current_ctx, passwd->bv_len, (const uint8_t *) passwd->bv_val);
}else if(!ber_bvcmp(scheme, &pbkdf2_sha1_scheme)){
dk.bv_len = PBKDF2_SHA1_DK_SIZE;
current_ctx = &sha1_ctx;
current_hmac_update = (pbkdf2_hmac_update) &hmac_sha1_update;
current_hmac_digest = (pbkdf2_hmac_digest) &hmac_sha1_digest;
hmac_sha1_set_key(current_ctx, passwd->bv_len, (const uint8_t *) passwd->bv_val);
}else if(!ber_bvcmp(scheme, &pbkdf2_sha256_scheme)){
dk.bv_len = PBKDF2_SHA256_DK_SIZE;
current_ctx = &sha256_ctx;
current_hmac_update = (pbkdf2_hmac_update) &hmac_sha256_update;
current_hmac_digest = (pbkdf2_hmac_digest) &hmac_sha256_digest;
hmac_sha256_set_key(current_ctx, passwd->bv_len, (const uint8_t *) passwd->bv_val);
}else if(!ber_bvcmp(scheme, &pbkdf2_sha512_scheme)){
dk.bv_len = PBKDF2_SHA512_DK_SIZE;
current_ctx = &sha512_ctx;
current_hmac_update = (pbkdf2_hmac_update) &hmac_sha512_update;
current_hmac_digest = (pbkdf2_hmac_digest) &hmac_sha512_digest;
hmac_sha512_set_key(current_ctx, passwd->bv_len, (const uint8_t *) passwd->bv_val);
}else{
return LUTIL_PASSWD_ERR;
}
#endif
if(lutil_entropy((unsigned char *)salt.bv_val, salt.bv_len) < 0){
return LUTIL_PASSWD_ERR;
}
#ifdef HAVE_OPENSSL
if(!PKCS5_PBKDF2_HMAC(passwd->bv_val, passwd->bv_len,
(unsigned char *)salt.bv_val, salt.bv_len,
iteration, md, dk.bv_len, dk_value)){
return LUTIL_PASSWD_ERR;
}
#elif HAVE_GNUTLS
PBKDF2(current_ctx, current_hmac_update, current_hmac_digest,
dk.bv_len, iteration,
salt.bv_len, (const uint8_t *) salt.bv_val,
dk.bv_len, dk_value);
#endif
#ifdef SLAPD_PBKDF2_DEBUG
printf("Encrypt for %s\n", scheme->bv_val);
printf(" Password:\t%s\n", passwd->bv_val);
printf(" Salt:\t\t");
int i;
for(i=0; i<salt.bv_len; i++){
printf("%02x", salt_value[i]);
}
printf("\n");
printf(" Iteration:\t%d\n", iteration);
printf(" DK:\t\t");
for(i=0; i<dk.bv_len; i++){
printf("%02x", dk_value[i]);
}
printf("\n");
#endif
rc = pbkdf2_format(scheme, iteration, &salt, &dk, msg);
#ifdef SLAPD_PBKDF2_DEBUG
printf(" Output:\t%s\n", msg->bv_val);
#endif
return rc;
}
