#include <stdio.h>
#include <openssl/comp.h>
-#include <openssl/md5.h>
-#include <openssl/sha.h>
#include <openssl/evp.h>
#include <openssl/hmac.h>
#include "ssl_locl.h"
+#include <openssl/md5.h>
static void tls1_P_hash(const EVP_MD *md, const unsigned char *sec,
int sec_len, unsigned char *seed, int seed_len,
chunk=EVP_MD_size(md);
+ HMAC_CTX_init(&ctx);
+ HMAC_CTX_init(&ctx_tmp);
HMAC_Init(&ctx,sec,sec_len,md);
+ HMAC_Init(&ctx_tmp,sec,sec_len,md);
HMAC_Update(&ctx,seed,seed_len);
HMAC_Final(&ctx,A1,&A1_len);
for (;;)
{
HMAC_Init(&ctx,NULL,0,NULL); /* re-init */
+ HMAC_Init(&ctx_tmp,NULL,0,NULL); /* re-init */
HMAC_Update(&ctx,A1,A1_len);
- memcpy(&ctx_tmp,&ctx,sizeof(ctx)); /* Copy for A2 */ /* not needed for last one */
+ HMAC_Update(&ctx_tmp,A1,A1_len);
HMAC_Update(&ctx,seed,seed_len);
if (olen > chunk)
break;
}
}
- HMAC_cleanup(&ctx);
- HMAC_cleanup(&ctx_tmp);
+ HMAC_CTX_cleanup(&ctx);
+ HMAC_CTX_cleanup(&ctx_tmp);
memset(A1,0,sizeof(A1));
}
tls1_PRF(s->ctx->md5,s->ctx->sha1,buf,(int)(p-buf),
s->session->master_key,s->session->master_key_length,
km,tmp,num);
+#ifdef KSSL_DEBUG
+ printf("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++)
+ {
+ printf("%02X", s->session->master_key[i]);
+ }
+ printf("\n"); }
+#endif /* KSSL_DEBUG */
}
int tls1_change_cipher_state(SSL *s, int which)
comp=s->s3->tmp.new_compression;
key_block=s->s3->tmp.key_block;
+#ifdef KSSL_DEBUG
+ printf("tls1_change_cipher_state(which= %d) w/\n", which);
+ printf("\talg= %ld, comp= %p\n", s->s3->tmp.new_cipher->algorithms,
+ comp);
+ printf("\tevp_cipher == %p ==? &d_cbc_ede_cipher3\n", c);
+ printf("\tevp_cipher: nid, blksz= %d, %d, keylen=%d, ivlen=%d\n",
+ c->nid,c->block_size,c->key_len,c->iv_len);
+ printf("\tkey_block: len= %d, data= ", s->s3->tmp.key_block_length);
+ {
+ int i;
+ for (i=0; i<s->s3->tmp.key_block_length; i++)
+ printf("%02x", key_block[i]); printf("\n");
+ }
+#endif /* KSSL_DEBUG */
+
if (which & SSL3_CC_READ)
{
if ((s->enc_read_ctx == NULL) &&
((s->enc_read_ctx=(EVP_CIPHER_CTX *)
- Malloc(sizeof(EVP_CIPHER_CTX))) == NULL))
+ OPENSSL_malloc(sizeof(EVP_CIPHER_CTX))) == NULL))
goto err;
dd= s->enc_read_ctx;
s->read_hash=m;
}
if (s->s3->rrec.comp == NULL)
s->s3->rrec.comp=(unsigned char *)
- Malloc(SSL3_RT_MAX_ENCRYPTED_LENGTH);
+ OPENSSL_malloc(SSL3_RT_MAX_ENCRYPTED_LENGTH);
if (s->s3->rrec.comp == NULL)
goto err;
}
{
if ((s->enc_write_ctx == NULL) &&
((s->enc_write_ctx=(EVP_CIPHER_CTX *)
- Malloc(sizeof(EVP_CIPHER_CTX))) == NULL))
+ OPENSSL_malloc(sizeof(EVP_CIPHER_CTX))) == NULL))
goto err;
dd= s->enc_write_ctx;
s->write_hash=m;
if (n > s->s3->tmp.key_block_length)
{
- SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE,SSL_R_INTERNAL_ERROR);
+ SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE,ERR_R_INTERNAL_ERROR);
goto err2;
}
}
s->session->key_arg_length=0;
+#ifdef KSSL_DEBUG
+ {
+ int i;
+ printf("EVP_CipherInit(dd,c,key=,iv=,which)\n");
+ printf("\tkey= "); for (i=0; i<c->key_len; i++) printf("%02x", key[i]);
+ printf("\n");
+ printf("\t iv= "); for (i=0; i<c->iv_len; i++) printf("%02x", iv[i]);
+ printf("\n");
+ }
+#endif /* KSSL_DEBUG */
EVP_CipherInit(dd,c,key,iv,(which & SSL3_CC_WRITE));
#ifdef TLS_DEBUG
int num;
SSL_COMP *comp;
+#ifdef KSSL_DEBUG
+ printf ("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 *)Malloc(num)) == NULL)
+ if ((p1=(unsigned char *)OPENSSL_malloc(num)) == NULL)
goto err;
- if ((p2=(unsigned char *)Malloc(num)) == NULL)
+ if ((p2=(unsigned char *)OPENSSL_malloc(num)) == NULL)
goto err;
s->s3->tmp.key_block_length=num;
#endif
tls1_generate_key_block(s,p1,p2,num);
memset(p2,0,num);
- Free(p2);
+ OPENSSL_free(p2);
#ifdef TLS_DEBUG
printf("\nkey block\n");
{ int z; for (z=0; z<num; z++) printf("%02X%c",p1[z],((z+1)%16)?' ':'\n'); }
enc=EVP_CIPHER_CTX_cipher(s->enc_read_ctx);
}
+#ifdef KSSL_DEBUG
+ printf("tls1_enc(%d)\n", send);
+#endif /* KSSL_DEBUG */
+
if ((s->session == NULL) || (ds == NULL) ||
(enc == NULL))
{
- memcpy(rec->data,rec->input,rec->length);
+ memmove(rec->data,rec->input,rec->length);
rec->input=rec->data;
}
else
rec->length+=i;
}
+#ifdef KSSL_DEBUG
+ {
+ unsigned long ui;
+ printf("EVP_Cipher(ds=%p,rec->data=%p,rec->input=%p,l=%ld) ==>\n",
+ ds,rec->data,rec->input,l);
+ printf("\tEVP_CIPHER_CTX: %d buf_len, %d key_len [%d %d], %d iv_len\n",
+ ds->buf_len, ds->cipher->key_len,
+ DES_KEY_SZ, DES_SCHEDULE_SZ,
+ ds->cipher->iv_len);
+ printf("\t\tIV: ");
+ for (i=0; i<ds->cipher->iv_len; i++) printf("%02X", ds->iv[i]);
+ printf("\n");
+ printf("\trec->input=");
+ for (ui=0; ui<l; ui++) printf(" %02x", rec->input[ui]);
+ printf("\n");
+ }
+#endif /* KSSL_DEBUG */
+
+ if (!send)
+ {
+ if (l == 0 || l%bs != 0)
+ {
+ SSLerr(SSL_F_TLS1_ENC,SSL_R_BLOCK_CIPHER_PAD_IS_WRONG);
+ ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECRYPTION_FAILED);
+ return 0;
+ }
+ }
+
EVP_Cipher(ds,rec->data,rec->input,l);
+#ifdef KSSL_DEBUG
+ {
+ unsigned long i;
+ printf("\trec->data=");
+ for (i=0; i<l; i++)
+ printf(" %02x", rec->data[i]); printf("\n");
+ }
+#endif /* KSSL_DEBUG */
+
if ((bs != 1) && !send)
{
- ii=i=rec->data[l-1];
+ ii=i=rec->data[l-1]; /* padding_length */
i++;
if (s->options&SSL_OP_TLS_BLOCK_PADDING_BUG)
{
if (s->s3->flags & TLS1_FLAGS_TLS_PADDING_BUG)
i--;
}
+ /* TLS 1.0 does not bound the number of padding bytes by the block size.
+ * All of them must have value 'padding_length'. */
if (i > (int)rec->length)
{
- SSLerr(SSL_F_TLS1_ENC,SSL_R_BLOCK_CIPHER_PAD_IS_WRONG);
- ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECRYPTION_FAILED);
- return(0);
+ /* Incorrect padding. SSLerr() and ssl3_alert are done
+ * by caller: we don't want to reveal whether this is
+ * a decryption error or a MAC verification failure
+ * (see http://www.openssl.org/~bodo/tls-cbc.txt) */
+ return -1;
}
for (j=(int)(l-i); j<(int)l; j++)
{
if (rec->data[j] != ii)
{
- SSLerr(SSL_F_TLS1_ENC,SSL_R_DECRYPTION_FAILED);
- ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECRYPTION_FAILED);
- return(0);
+ /* Incorrect padding */
+ return -1;
}
}
rec->length-=i;
unsigned int ret;
EVP_MD_CTX ctx;
+ EVP_MD_CTX_init(&ctx);
EVP_MD_CTX_copy(&ctx,in_ctx);
EVP_DigestFinal(&ctx,out,&ret);
+ EVP_MD_CTX_cleanup(&ctx);
return((int)ret);
}
memcpy(q,str,slen);
q+=slen;
+ EVP_MD_CTX_init(&ctx);
EVP_MD_CTX_copy(&ctx,in1_ctx);
EVP_DigestFinal(&ctx,q,&i);
q+=i;
tls1_PRF(s->ctx->md5,s->ctx->sha1,buf,(int)(q-buf),
s->session->master_key,s->session->master_key_length,
out,buf2,12);
- memset(&ctx,0,sizeof(EVP_MD_CTX));
+ EVP_MD_CTX_cleanup(&ctx);
return((int)12);
}
buf[4]=rec->length&0xff;
/* I should fix this up TLS TLS TLS TLS TLS XXXXXXXX */
+ HMAC_CTX_init(&hmac);
HMAC_Init(&hmac,mac_sec,EVP_MD_size(hash),hash);
HMAC_Update(&hmac,seq,8);
HMAC_Update(&hmac,buf,5);
HMAC_Update(&hmac,rec->input,rec->length);
HMAC_Final(&hmac,md,&md_size);
+ HMAC_CTX_cleanup(&hmac);
#ifdef TLS_DEBUG
printf("sec=");
#endif
for (i=7; i>=0; i--)
- if (++seq[i]) break;
+ {
+ ++seq[i];
+ if (seq[i] != 0) break;
+ }
#ifdef TLS_DEBUG
{unsigned int z; for (z=0; z<md_size; z++) printf("%02X ",md[z]); printf("\n"); }
unsigned char buf[SSL3_RANDOM_SIZE*2+TLS_MD_MASTER_SECRET_CONST_SIZE];
unsigned char buff[SSL_MAX_MASTER_KEY_LENGTH];
+#ifdef KSSL_DEBUG
+ printf ("tls1_generate_master_secret(%p,%p, %p, %d)\n", s,out, p,len);
+#endif /* KSSL_DEBUG */
+
/* Setup the stuff to munge */
memcpy(buf,TLS_MD_MASTER_SECRET_CONST,
TLS_MD_MASTER_SECRET_CONST_SIZE);
tls1_PRF(s->ctx->md5,s->ctx->sha1,
buf,TLS_MD_MASTER_SECRET_CONST_SIZE+SSL3_RANDOM_SIZE*2,p,len,
s->session->master_key,buff,SSL3_MASTER_SECRET_SIZE);
+#ifdef KSSL_DEBUG
+ printf ("tls1_generate_master_secret() complete\n");
+#endif /* KSSL_DEBUG */
return(SSL3_MASTER_SECRET_SIZE);
}
projects / openssl.git / blobdiff