#include <openssl/hmac.h>
#include <openssl/md5.h>
#include <openssl/rand.h>
-#ifdef KSSL_DEBUG
-# include <openssl/des.h>
-#endif
/* seed1 through seed5 are virtually concatenated */
static int tls1_P_hash(const EVP_MD *md, const unsigned char *sec,
if ((m << TLS1_PRF_DGST_SHIFT) & digest_mask)
count++;
}
- if(!count) {
+ if (!count) {
/* Should never happen */
SSLerr(SSL_F_TLS1_PRF, ERR_R_INTERNAL_ERROR);
goto err;
SSL3_RANDOM_SIZE, s->s3->client_random, SSL3_RANDOM_SIZE,
NULL, 0, NULL, 0, s->session->master_key,
s->session->master_key_length, km, tmp, num);
-#ifdef KSSL_DEBUG
- fprintf(stderr, "tls1_generate_key_block() ==> %d byte master_key =\n\t",
- s->session->master_key_length);
- {
- int i;
- for (i = 0; i < s->session->master_key_length; i++) {
- fprintf(stderr, "%02X", s->session->master_key[i]);
- }
- fprintf(stderr, "\n");
- }
-#endif /* KSSL_DEBUG */
+
return ret;
}
comp = s->s3->tmp.new_compression;
#endif
-#ifdef KSSL_DEBUG
- fprintf(stderr, "tls1_change_cipher_state(which= %d) w/\n", which);
- fprintf(stderr, "\talg= %ld/%ld, comp= %p\n",
- s->s3->tmp.new_cipher->algorithm_mkey,
- s->s3->tmp.new_cipher->algorithm_auth, comp);
- fprintf(stderr, "\tevp_cipher == %p ==? &d_cbc_ede_cipher3\n", c);
- fprintf(stderr, "\tevp_cipher: nid, blksz= %d, %d, keylen=%d, ivlen=%d\n",
- c->nid, c->block_size, c->key_len, c->iv_len);
- fprintf(stderr, "\tkey_block: len= %d, data= ",
- s->s3->tmp.key_block_length);
- {
- int i;
- for (i = 0; i < s->s3->tmp.key_block_length; i++)
- fprintf(stderr, "%02x", s->s3->tmp.key_block[i]);
- fprintf(stderr, "\n");
- }
-#endif /* KSSL_DEBUG */
-
if (which & SSL3_CC_READ) {
if (s->s3->tmp.new_cipher->algorithm2 & TLS1_STREAM_MAC)
s->mac_flags |= SSL_MAC_FLAG_READ_MAC_STREAM;
if (s->enc_read_ctx != NULL)
reuse_dd = 1;
else if ((s->enc_read_ctx =
- OPENSSL_malloc(sizeof(EVP_CIPHER_CTX))) == NULL)
+ OPENSSL_malloc(sizeof(*s->enc_read_ctx))) == NULL)
goto err;
else
/*
EVP_CIPHER_CTX_init(s->enc_read_ctx);
dd = s->enc_read_ctx;
mac_ctx = ssl_replace_hash(&s->read_hash, NULL);
+ if (mac_ctx == NULL)
+ goto err;
#ifndef OPENSSL_NO_COMP
- if (s->expand != NULL) {
- COMP_CTX_free(s->expand);
- s->expand = NULL;
- }
+ COMP_CTX_free(s->expand);
+ s->expand = NULL;
if (comp != NULL) {
s->expand = COMP_CTX_new(comp->method);
if (s->expand == NULL) {
SSL_R_COMPRESSION_LIBRARY_ERROR);
goto err2;
}
- if (SSL3_RECORD_setup(RECORD_LAYER_get_rrec(&s->rlayer),
- SSL3_RT_MAX_ENCRYPTED_LENGTH))
+ if (!RECORD_LAYER_setup_comp_buffer(&s->rlayer))
goto err;
}
#endif
* this is done by dtls1_reset_seq_numbers for DTLS
*/
if (!SSL_IS_DTLS(s))
- memset(&(s->s3->read_sequence[0]), 0, 8);
+ RECORD_LAYER_reset_read_sequence(&s->rlayer);
mac_secret = &(s->s3->read_mac_secret[0]);
mac_secret_size = &(s->s3->read_mac_secret_size);
} else {
dd = s->enc_write_ctx;
if (SSL_IS_DTLS(s)) {
mac_ctx = EVP_MD_CTX_create();
- if (!mac_ctx)
+ if (mac_ctx == NULL)
goto err;
s->write_hash = mac_ctx;
- } else
+ } else {
mac_ctx = ssl_replace_hash(&s->write_hash, NULL);
-#ifndef OPENSSL_NO_COMP
- if (s->compress != NULL) {
- COMP_CTX_free(s->compress);
- s->compress = NULL;
+ if (mac_ctx == NULL)
+ goto err;
}
+#ifndef OPENSSL_NO_COMP
+ COMP_CTX_free(s->compress);
+ s->compress = NULL;
if (comp != NULL) {
s->compress = COMP_CTX_new(comp->method);
if (s->compress == NULL) {
* this is done by dtls1_reset_seq_numbers for DTLS
*/
if (!SSL_IS_DTLS(s))
- memset(&(s->s3->write_sequence[0]), 0, 8);
+ RECORD_LAYER_reset_write_sequence(&s->rlayer);
mac_secret = &(s->s3->write_mac_secret[0]);
mac_secret_size = &(s->s3->write_mac_secret_size);
}
j = is_export ? (cl < SSL_C_EXPORT_KEYLENGTH(s->s3->tmp.new_cipher) ?
cl : SSL_C_EXPORT_KEYLENGTH(s->s3->tmp.new_cipher)) : cl;
/* Was j=(exp)?5:EVP_CIPHER_key_length(c); */
- /* If GCM mode only part of IV comes from PRF */
+ /* If GCM/CCM mode only part of IV comes from PRF */
if (EVP_CIPHER_mode(c) == EVP_CIPH_GCM_MODE)
k = EVP_GCM_TLS_FIXED_IV_LEN;
+ else if (EVP_CIPHER_mode(c) == EVP_CIPH_CCM_MODE)
+ k = EVP_CCM_TLS_FIXED_IV_LEN;
else
k = EVP_CIPHER_iv_length(c);
if ((which == SSL3_CHANGE_CIPHER_CLIENT_WRITE) ||
if (!(EVP_CIPHER_flags(c) & EVP_CIPH_FLAG_AEAD_CIPHER)) {
mac_key = EVP_PKEY_new_mac_key(mac_type, NULL,
mac_secret, *mac_secret_size);
- EVP_DigestSignInit(mac_ctx, NULL, m, NULL, mac_key);
+ if (mac_key == NULL
+ || EVP_DigestSignInit(mac_ctx, NULL, m, NULL, mac_key) <= 0) {
+ EVP_PKEY_free(mac_key);
+ SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE, ERR_R_INTERNAL_ERROR);
+ goto err2;
+ }
EVP_PKEY_free(mac_key);
}
#ifdef TLS_DEBUG
iv = &(iv1[k]);
}
}
-#ifdef KSSL_DEBUG
- {
- int i;
- fprintf(stderr, "EVP_CipherInit_ex(dd,c,key=,iv=,which)\n");
- fprintf(stderr, "\tkey= ");
- for (i = 0; i < c->key_len; i++)
- fprintf(stderr, "%02x", key[i]);
- fprintf(stderr, "\n");
- fprintf(stderr, "\t iv= ");
- for (i = 0; i < c->iv_len; i++)
- fprintf(stderr, "%02x", iv[i]);
- fprintf(stderr, "\n");
- }
-#endif /* KSSL_DEBUG */
if (EVP_CIPHER_mode(c) == EVP_CIPH_GCM_MODE) {
if (!EVP_CipherInit_ex(dd, c, NULL, key, NULL, (which & SSL3_CC_WRITE))
SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE, ERR_R_INTERNAL_ERROR);
goto err2;
}
+ } else if (EVP_CIPHER_mode(c) == EVP_CIPH_CCM_MODE) {
+ int taglen;
+ if (s->s3->tmp.new_cipher->algorithm_enc & (SSL_AES128CCM8|SSL_AES256CCM8))
+ taglen = 8;
+ else
+ taglen = 16;
+ if (!EVP_CipherInit_ex(dd, c, NULL, NULL, NULL, (which & SSL3_CC_WRITE))
+ || !EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_AEAD_SET_IVLEN, 12, NULL)
+ || !EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_AEAD_SET_TAG, taglen, NULL)
+ || !EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_CCM_SET_IV_FIXED, k, iv)
+ || !EVP_CipherInit_ex(dd, NULL, NULL, key, NULL, -1)) {
+ SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE, ERR_R_INTERNAL_ERROR);
+ goto err2;
+ }
} else {
if (!EVP_CipherInit_ex(dd, c, NULL, key, iv, (which & SSL3_CC_WRITE))) {
SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE, ERR_R_INTERNAL_ERROR);
err:
SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE, ERR_R_MALLOC_FAILURE);
err2:
+ OPENSSL_cleanse(tmp1, sizeof(tmp1));
+ OPENSSL_cleanse(tmp2, sizeof(tmp1));
+ OPENSSL_cleanse(iv1, sizeof(iv1));
+ OPENSSL_cleanse(iv2, sizeof(iv2));
return (0);
}
int mac_type = NID_undef, mac_secret_size = 0;
int ret = 0;
-#ifdef KSSL_DEBUG
- fprintf(stderr, "tls1_setup_key_block()\n");
-#endif /* KSSL_DEBUG */
-
if (s->s3->tmp.key_block_length != 0)
return (1);
ssl3_cleanup_key_block(s);
- if ((p1 = (unsigned char *)OPENSSL_malloc(num)) == NULL) {
+ if ((p1 = OPENSSL_malloc(num)) == NULL) {
SSLerr(SSL_F_TLS1_SETUP_KEY_BLOCK, ERR_R_MALLOC_FAILURE);
goto err;
}
s->s3->tmp.key_block_length = num;
s->s3->tmp.key_block = p1;
- if ((p2 = (unsigned char *)OPENSSL_malloc(num)) == NULL) {
+ if ((p2 = OPENSSL_malloc(num)) == NULL) {
SSLerr(SSL_F_TLS1_SETUP_KEY_BLOCK, ERR_R_MALLOC_FAILURE);
OPENSSL_free(p1);
goto err;
ret = 1;
err:
- if (p2) {
- OPENSSL_cleanse(p2, num);
- OPENSSL_free(p2);
- }
+ OPENSSL_clear_free(p2, num);
return (ret);
}
-
-int tls1_cert_verify_mac(SSL *s, int md_nid, unsigned char *out)
-{
- unsigned int ret;
- EVP_MD_CTX ctx, *d = NULL;
- int i;
-
- if (s->s3->handshake_buffer)
- if (!ssl3_digest_cached_records(s))
- return 0;
-
- for (i = 0; i < SSL_MAX_DIGEST; i++) {
- if (s->s3->handshake_dgst[i]
- && EVP_MD_CTX_type(s->s3->handshake_dgst[i]) == md_nid) {
- d = s->s3->handshake_dgst[i];
- break;
- }
- }
- if (!d) {
- SSLerr(SSL_F_TLS1_CERT_VERIFY_MAC, SSL_R_NO_REQUIRED_DIGEST);
- return 0;
- }
-
- EVP_MD_CTX_init(&ctx);
- EVP_MD_CTX_copy_ex(&ctx, d);
- EVP_DigestFinal_ex(&ctx, out, &ret);
- EVP_MD_CTX_cleanup(&ctx);
- return ((int)ret);
-}
-
int tls1_final_finish_mac(SSL *s, const char *str, int slen,
unsigned char *out)
{
unsigned char hash[2 * EVP_MAX_MD_SIZE];
unsigned char buf2[12];
- if (s->s3->handshake_buffer)
- if (!ssl3_digest_cached_records(s))
- return 0;
+ if (!ssl3_digest_cached_records(s, 0))
+ return 0;
hashlen = ssl_handshake_hash(s, hash, sizeof(hash));
return 0;
OPENSSL_cleanse(hash, hashlen);
OPENSSL_cleanse(buf2, sizeof(buf2));
- return sizeof buf2;
+ return sizeof(buf2);
}
int tls1_generate_master_secret(SSL *s, unsigned char *out, unsigned char *p,
{
unsigned char buff[SSL_MAX_MASTER_KEY_LENGTH];
-#ifdef KSSL_DEBUG
- fprintf(stderr, "tls1_generate_master_secret(%p,%p, %p, %d)\n", s, out, p,
- len);
-#endif /* KSSL_DEBUG */
-
if (s->session->flags & SSL_SESS_FLAG_EXTMS) {
unsigned char hash[EVP_MAX_MD_SIZE * 2];
int hashlen;
- /* If we don't have any digests cache records */
- if (s->s3->handshake_buffer) {
- /*
- * keep record buffer: this wont affect client auth because we're
- * freezing the buffer at the same point (after client key
- * exchange and before certificate verify)
- */
- s->s3->flags |= TLS1_FLAGS_KEEP_HANDSHAKE;
- if(!ssl3_digest_cached_records(s))
- return -1;
- }
+ /* Digest cached records keeping record buffer (if present):
+ * this wont affect client auth because we're freezing the buffer
+ * at the same point (after client key exchange and before certificate
+ * verify)
+ */
+ if (!ssl3_digest_cached_records(s, 1))
+ return -1;
hashlen = ssl_handshake_hash(s, hash, sizeof(hash));
#ifdef SSL_DEBUG
fprintf(stderr, "Handshake hashes:\n");
}
#endif
-#ifdef KSSL_DEBUG
- fprintf(stderr, "tls1_generate_master_secret() complete\n");
-#endif /* KSSL_DEBUG */
return (SSL3_MASTER_SECRET_SIZE);
}
{
unsigned char *buff;
unsigned char *val = NULL;
- size_t vallen, currentvalpos;
+ size_t vallen = 0, currentvalpos;
int rv;
-#ifdef KSSL_DEBUG
- fprintf(stderr, "tls1_export_keying_material(%p,%p,%lu,%s,%lu,%p,%lu)\n",
- s, out, olen, label, llen, context, contextlen);
-#endif /* KSSL_DEBUG */
-
buff = OPENSSL_malloc(olen);
if (buff == NULL)
goto err2;
NULL, 0,
s->session->master_key, s->session->master_key_length,
out, buff, olen);
- OPENSSL_cleanse(val, vallen);
- OPENSSL_cleanse(buff, olen);
-#ifdef KSSL_DEBUG
- fprintf(stderr, "tls1_export_keying_material() complete\n");
-#endif /* KSSL_DEBUG */
goto ret;
err1:
SSLerr(SSL_F_TLS1_EXPORT_KEYING_MATERIAL,
SSLerr(SSL_F_TLS1_EXPORT_KEYING_MATERIAL, ERR_R_MALLOC_FAILURE);
rv = 0;
ret:
- if (buff != NULL)
- OPENSSL_free(buff);
- if (val != NULL)
- OPENSSL_free(val);
+ CRYPTO_clear_free(val, vallen);
+ CRYPTO_clear_free(buff, olen);
return (rv);
}
projects / openssl.git / blobdiff