#include <stdio.h>
#include "ssl_locl.h"
+#ifndef OPENSSL_NO_COMP
#include <openssl/comp.h>
+#endif
#include <openssl/evp.h>
#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 void tls1_P_hash(const EVP_MD *md, const unsigned char *sec,
+static int tls1_P_hash(const EVP_MD *md, const unsigned char *sec,
int sec_len,
const void *seed1, int seed1_len,
const void *seed2, int seed2_len,
const void *seed5, int seed5_len,
unsigned char *out, int olen)
{
- int chunk,n;
- unsigned int j;
- HMAC_CTX ctx;
- HMAC_CTX ctx_tmp;
+ int chunk;
+ size_t j;
+ EVP_MD_CTX ctx, ctx_tmp;
+ EVP_PKEY *mac_key;
unsigned char A1[EVP_MAX_MD_SIZE];
- unsigned int A1_len;
+ size_t A1_len;
+ int ret = 0;
chunk=EVP_MD_size(md);
+ OPENSSL_assert(chunk >= 0);
+
+ EVP_MD_CTX_init(&ctx);
+ EVP_MD_CTX_init(&ctx_tmp);
+ EVP_MD_CTX_set_flags(&ctx, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW);
+ EVP_MD_CTX_set_flags(&ctx_tmp, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW);
+ mac_key = EVP_PKEY_new_mac_key(EVP_PKEY_HMAC, NULL, sec, sec_len);
+ if (!mac_key)
+ goto err;
+ if (!EVP_DigestSignInit(&ctx,NULL,md, NULL, mac_key))
+ goto err;
+ if (!EVP_DigestSignInit(&ctx_tmp,NULL,md, NULL, mac_key))
+ goto err;
+ if (seed1 && !EVP_DigestSignUpdate(&ctx,seed1,seed1_len))
+ goto err;
+ if (seed2 && !EVP_DigestSignUpdate(&ctx,seed2,seed2_len))
+ goto err;
+ if (seed3 && !EVP_DigestSignUpdate(&ctx,seed3,seed3_len))
+ goto err;
+ if (seed4 && !EVP_DigestSignUpdate(&ctx,seed4,seed4_len))
+ goto err;
+ if (seed5 && !EVP_DigestSignUpdate(&ctx,seed5,seed5_len))
+ goto err;
+ if (!EVP_DigestSignFinal(&ctx,A1,&A1_len))
+ goto err;
- HMAC_CTX_init(&ctx);
- HMAC_CTX_init(&ctx_tmp);
- HMAC_Init_ex(&ctx,sec,sec_len,md, NULL);
- HMAC_Init_ex(&ctx_tmp,sec,sec_len,md, NULL);
- if (seed1 != NULL) HMAC_Update(&ctx,seed1,seed1_len);
- if (seed2 != NULL) HMAC_Update(&ctx,seed2,seed2_len);
- if (seed3 != NULL) HMAC_Update(&ctx,seed3,seed3_len);
- if (seed4 != NULL) HMAC_Update(&ctx,seed4,seed4_len);
- if (seed5 != NULL) HMAC_Update(&ctx,seed5,seed5_len);
- HMAC_Final(&ctx,A1,&A1_len);
-
- n=0;
for (;;)
{
- HMAC_Init_ex(&ctx,NULL,0,NULL,NULL); /* re-init */
- HMAC_Init_ex(&ctx_tmp,NULL,0,NULL,NULL); /* re-init */
- HMAC_Update(&ctx,A1,A1_len);
- HMAC_Update(&ctx_tmp,A1,A1_len);
- if (seed1 != NULL) HMAC_Update(&ctx,seed1,seed1_len);
- if (seed2 != NULL) HMAC_Update(&ctx,seed2,seed2_len);
- if (seed3 != NULL) HMAC_Update(&ctx,seed3,seed3_len);
- if (seed4 != NULL) HMAC_Update(&ctx,seed4,seed4_len);
- if (seed5 != NULL) HMAC_Update(&ctx,seed5,seed5_len);
+ /* Reinit mac contexts */
+ if (!EVP_DigestSignInit(&ctx,NULL,md, NULL, mac_key))
+ goto err;
+ if (!EVP_DigestSignInit(&ctx_tmp,NULL,md, NULL, mac_key))
+ goto err;
+ if (!EVP_DigestSignUpdate(&ctx,A1,A1_len))
+ goto err;
+ if (!EVP_DigestSignUpdate(&ctx_tmp,A1,A1_len))
+ goto err;
+ if (seed1 && !EVP_DigestSignUpdate(&ctx,seed1,seed1_len))
+ goto err;
+ if (seed2 && !EVP_DigestSignUpdate(&ctx,seed2,seed2_len))
+ goto err;
+ if (seed3 && !EVP_DigestSignUpdate(&ctx,seed3,seed3_len))
+ goto err;
+ if (seed4 && !EVP_DigestSignUpdate(&ctx,seed4,seed4_len))
+ goto err;
+ if (seed5 && !EVP_DigestSignUpdate(&ctx,seed5,seed5_len))
+ goto err;
if (olen > chunk)
{
- HMAC_Final(&ctx,out,&j);
+ if (!EVP_DigestSignFinal(&ctx,out,&j))
+ goto err;
out+=j;
olen-=j;
- HMAC_Final(&ctx_tmp,A1,&A1_len); /* calc the next A1 value */
+ /* calc the next A1 value */
+ if (!EVP_DigestSignFinal(&ctx_tmp,A1,&A1_len))
+ goto err;
}
else /* last one */
{
- HMAC_Final(&ctx,A1,&A1_len);
+ if (!EVP_DigestSignFinal(&ctx,A1,&A1_len))
+ goto err;
memcpy(out,A1,olen);
break;
}
}
- HMAC_CTX_cleanup(&ctx);
- HMAC_CTX_cleanup(&ctx_tmp);
+ ret = 1;
+err:
+ EVP_PKEY_free(mac_key);
+ EVP_MD_CTX_cleanup(&ctx);
+ EVP_MD_CTX_cleanup(&ctx_tmp);
OPENSSL_cleanse(A1,sizeof(A1));
+ return ret;
}
/* seed1 through seed5 are virtually concatenated */
-static void tls1_PRF(long digest_mask,
+static int tls1_PRF(long digest_mask,
const void *seed1, int seed1_len,
const void *seed2, int seed2_len,
const void *seed3, int seed3_len,
const unsigned char *S1;
long m;
const EVP_MD *md;
+ int ret = 0;
/* Count number of digests and partition sec evenly */
count=0;
if ((m<<TLS1_PRF_DGST_SHIFT) & digest_mask) count++;
}
len=slen/count;
+ if (count == 1)
+ slen = 0;
S1=sec;
memset(out1,0,olen);
for (idx=0;ssl_get_handshake_digest(idx,&m,&md);idx++) {
if (!md) {
SSLerr(SSL_F_TLS1_PRF,
SSL_R_UNSUPPORTED_DIGEST_TYPE);
- return;
+ goto err;
}
- tls1_P_hash(md ,S1,len+(slen&1),
- seed1,seed1_len,seed2,seed2_len,seed3,seed3_len,seed4,seed4_len,seed5,seed5_len,
- out2,olen);
+ if (!tls1_P_hash(md ,S1,len+(slen&1),
+ seed1,seed1_len,seed2,seed2_len,seed3,seed3_len,seed4,seed4_len,seed5,seed5_len,
+ out2,olen))
+ goto err;
S1+=len;
for (i=0; i<olen; i++)
{
}
}
}
-
+ ret = 1;
+err:
+ return ret;
}
-static void tls1_generate_key_block(SSL *s, unsigned char *km,
+static int tls1_generate_key_block(SSL *s, unsigned char *km,
unsigned char *tmp, int num)
{
- tls1_PRF(s->s3->tmp.new_cipher->algorithm2,
+ int ret;
+ ret = tls1_PRF(ssl_get_algorithm2(s),
TLS_MD_KEY_EXPANSION_CONST,TLS_MD_KEY_EXPANSION_CONST_SIZE,
s->s3->server_random,SSL3_RANDOM_SIZE,
s->s3->client_random,SSL3_RANDOM_SIZE,
}
printf("\n"); }
#endif /* KSSL_DEBUG */
+ return ret;
}
int tls1_change_cipher_state(SSL *s, int which)
{
static const unsigned char empty[]="";
- unsigned char *p,*key_block,*mac_secret;
+ unsigned char *p,*mac_secret;
unsigned char *exp_label;
unsigned char tmp1[EVP_MAX_KEY_LENGTH];
unsigned char tmp2[EVP_MAX_KEY_LENGTH];
unsigned char iv1[EVP_MAX_IV_LENGTH*2];
unsigned char iv2[EVP_MAX_IV_LENGTH*2];
- unsigned char *ms,*key,*iv,*er1,*er2;
+ unsigned char *ms,*key,*iv;
int client_write;
EVP_CIPHER_CTX *dd;
const EVP_CIPHER *c;
#ifndef OPENSSL_NO_COMP
comp=s->s3->tmp.new_compression;
#endif
- key_block=s->s3->tmp.key_block;
#ifdef KSSL_DEBUG
printf("tls1_change_cipher_state(which= %d) w/\n", which);
cl : SSL_C_EXPORT_KEYLENGTH(s->s3->tmp.new_cipher)) : cl;
/* Was j=(exp)?5:EVP_CIPHER_key_length(c); */
k=EVP_CIPHER_iv_length(c);
- er1= &(s->s3->client_random[0]);
- er2= &(s->s3->server_random[0]);
if ( (which == SSL3_CHANGE_CIPHER_CLIENT_WRITE) ||
(which == SSL3_CHANGE_CIPHER_SERVER_READ))
{
/* In here I set both the read and write key/iv to the
* same value since only the correct one will be used :-).
*/
- tls1_PRF(s->s3->tmp.new_cipher->algorithm2,
- exp_label,exp_label_len,
- s->s3->client_random,SSL3_RANDOM_SIZE,
- s->s3->server_random,SSL3_RANDOM_SIZE,
- NULL,0,NULL,0,
- key,j,tmp1,tmp2,EVP_CIPHER_key_length(c));
+ if (!tls1_PRF(ssl_get_algorithm2(s),
+ exp_label,exp_label_len,
+ s->s3->client_random,SSL3_RANDOM_SIZE,
+ s->s3->server_random,SSL3_RANDOM_SIZE,
+ NULL,0,NULL,0,
+ key,j,tmp1,tmp2,EVP_CIPHER_key_length(c)))
+ goto err2;
key=tmp1;
if (k > 0)
{
- tls1_PRF(s->s3->tmp.new_cipher->algorithm2,
- TLS_MD_IV_BLOCK_CONST,TLS_MD_IV_BLOCK_CONST_SIZE,
- s->s3->client_random,SSL3_RANDOM_SIZE,
- s->s3->server_random,SSL3_RANDOM_SIZE,
- NULL,0,NULL,0,
- empty,0,iv1,iv2,k*2);
+ if (!tls1_PRF(ssl_get_algorithm2(s),
+ TLS_MD_IV_BLOCK_CONST,TLS_MD_IV_BLOCK_CONST_SIZE,
+ s->s3->client_random,SSL3_RANDOM_SIZE,
+ s->s3->server_random,SSL3_RANDOM_SIZE,
+ NULL,0,NULL,0,
+ empty,0,iv1,iv2,k*2))
+ goto err2;
if (client_write)
iv=iv1;
else
int tls1_setup_key_block(SSL *s)
{
- unsigned char *p1,*p2;
+ unsigned char *p1,*p2=NULL;
const EVP_CIPHER *c;
const EVP_MD *hash;
int num;
SSL_COMP *comp;
int mac_type= NID_undef,mac_secret_size=0;
+ int ret=0;
#ifdef KSSL_DEBUG
printf ("tls1_setup_key_block()\n");
ssl3_cleanup_key_block(s);
if ((p1=(unsigned char *)OPENSSL_malloc(num)) == NULL)
+ {
+ SSLerr(SSL_F_TLS1_SETUP_KEY_BLOCK,ERR_R_MALLOC_FAILURE);
goto err;
- if ((p2=(unsigned char *)OPENSSL_malloc(num)) == NULL)
- goto err;
+ }
s->s3->tmp.key_block_length=num;
s->s3->tmp.key_block=p1;
+ if ((p2=(unsigned char *)OPENSSL_malloc(num)) == NULL)
+ {
+ SSLerr(SSL_F_TLS1_SETUP_KEY_BLOCK,ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
#ifdef TLS_DEBUG
printf("client random\n");
printf("pre-master\n");
{ int z; for (z=0; z<s->session->master_key_length; z++) printf("%02X%c",s->session->master_key[z],((z+1)%16)?' ':'\n'); }
#endif
- tls1_generate_key_block(s,p1,p2,num);
- OPENSSL_cleanse(p2,num);
- OPENSSL_free(p2);
+ if (!tls1_generate_key_block(s,p1,p2,num))
+ goto err;
#ifdef TLS_DEBUG
printf("\nkey block\n");
{ int z; for (z=0; z<num; z++) printf("%02X%c",p1[z],((z+1)%16)?' ':'\n'); }
#endif
- if (!(s->options & SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS))
+ if (!(s->options & SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS)
+ && s->method->version <= TLS1_VERSION)
{
/* enable vulnerability countermeasure for CBC ciphers with
* known-IV problem (http://www.openssl.org/~bodo/tls-cbc.txt)
}
}
- return(1);
+ ret = 1;
err:
- SSLerr(SSL_F_TLS1_SETUP_KEY_BLOCK,ERR_R_MALLOC_FAILURE);
- return(0);
+ if (p2)
+ {
+ OPENSSL_cleanse(p2,num);
+ OPENSSL_free(p2);
+ }
+ return(ret);
}
int tls1_enc(SSL *s, int send)
if (send)
{
if (EVP_MD_CTX_md(s->write_hash))
+ {
n=EVP_MD_CTX_size(s->write_hash);
+ OPENSSL_assert(n >= 0);
+ }
ds=s->enc_write_ctx;
rec= &(s->s3->wrec);
if (s->enc_write_ctx == NULL)
enc=NULL;
else
+ {
+ int ivlen;
enc=EVP_CIPHER_CTX_cipher(s->enc_write_ctx);
+ /* For TLSv1.1 and later explicit IV */
+ if (s->version >= TLS1_1_VERSION
+ && EVP_CIPHER_mode(enc) == EVP_CIPH_CBC_MODE)
+ ivlen = EVP_CIPHER_iv_length(enc);
+ else
+ ivlen = 0;
+ if (ivlen > 1)
+ {
+ if ( rec->data != rec->input)
+ /* we can't write into the input stream:
+ * Can this ever happen?? (steve)
+ */
+ fprintf(stderr,
+ "%s:%d: rec->data != rec->input\n",
+ __FILE__, __LINE__);
+ else if (RAND_bytes(rec->input, ivlen) <= 0)
+ return -1;
+ }
+ }
}
else
{
if (EVP_MD_CTX_md(s->read_hash))
+ {
n=EVP_MD_CTX_size(s->read_hash);
+ OPENSSL_assert(n >= 0);
+ }
ds=s->enc_read_ctx;
rec= &(s->s3->rrec);
if (s->enc_read_ctx == NULL)
{
if (l == 0 || l%bs != 0)
{
+ if (s->version >= TLS1_1_VERSION)
+ return -1;
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;
return -1;
}
}
- rec->length-=i;
+ rec->length -=i;
+ if (s->version >= TLS1_1_VERSION
+ && EVP_CIPHER_CTX_mode(ds) == EVP_CIPH_CBC_MODE)
+ {
+ rec->data += bs; /* skip the explicit IV */
+ rec->input += bs;
+ rec->length -= bs;
+ }
}
}
return(1);
for (idx=0;ssl_get_handshake_digest(idx,&mask,&md);idx++)
{
- if (mask & s->s3->tmp.new_cipher->algorithm2)
+ if (mask & ssl_get_algorithm2(s))
{
- unsigned int hashsize = EVP_MD_size(md);
- if (hashsize > (sizeof buf - (size_t)(q-buf)))
+ int hashsize = EVP_MD_size(md);
+ if (hashsize < 0 || hashsize > (int)(sizeof buf - (size_t)(q-buf)))
{
/* internal error: 'buf' is too small for this cipersuite! */
err = 1;
{
EVP_MD_CTX_copy_ex(&ctx,s->s3->handshake_dgst[idx]);
EVP_DigestFinal_ex(&ctx,q,&i);
- if (i != hashsize) /* can't really happen */
+ if (i != (unsigned int)hashsize) /* can't really happen */
err = 1;
q+=i;
}
}
}
- tls1_PRF(s->s3->tmp.new_cipher->algorithm2,
- str,slen, buf,(int)(q-buf), NULL,0, NULL,0, NULL,0,
- s->session->master_key,s->session->master_key_length,
- out,buf2,sizeof buf2);
+ if (!tls1_PRF(ssl_get_algorithm2(s),
+ str,slen, buf,(int)(q-buf), NULL,0, NULL,0, NULL,0,
+ s->session->master_key,s->session->master_key_length,
+ out,buf2,sizeof buf2))
+ err = 1;
EVP_MD_CTX_cleanup(&ctx);
if (err)
int tls1_mac(SSL *ssl, unsigned char *md, int send)
{
SSL3_RECORD *rec;
- unsigned char *mac_sec,*seq;
+ unsigned char *seq;
EVP_MD_CTX *hash;
size_t md_size;
int i;
EVP_MD_CTX hmac, *mac_ctx;
unsigned char buf[5];
int stream_mac = (send?(ssl->mac_flags & SSL_MAC_FLAG_WRITE_MAC_STREAM):(ssl->mac_flags&SSL_MAC_FLAG_READ_MAC_STREAM));
+ int t;
if (send)
{
rec= &(ssl->s3->wrec);
- mac_sec= &(ssl->s3->write_mac_secret[0]);
seq= &(ssl->s3->write_sequence[0]);
hash=ssl->write_hash;
}
else
{
rec= &(ssl->s3->rrec);
- mac_sec= &(ssl->s3->read_mac_secret[0]);
seq= &(ssl->s3->read_sequence[0]);
hash=ssl->read_hash;
}
- md_size=EVP_MD_CTX_size(hash);
+ t=EVP_MD_CTX_size(hash);
+ OPENSSL_assert(t >= 0);
+ md_size=t;
buf[0]=rec->type;
buf[1]=(unsigned char)(ssl->version>>8);
mac_ctx = &hmac;
}
- if (ssl->version == DTLS1_VERSION)
+ if (ssl->version == DTLS1_VERSION || ssl->version == DTLS1_BAD_VER)
{
unsigned char dtlsseq[8],*p=dtlsseq;
EVP_DigestSignUpdate(mac_ctx,buf,5);
EVP_DigestSignUpdate(mac_ctx,rec->input,rec->length);
- EVP_DigestSignFinal(mac_ctx,md,&md_size);
+ t=EVP_DigestSignFinal(mac_ctx,md,&md_size);
+ OPENSSL_assert(t > 0);
+
if (!stream_mac) EVP_MD_CTX_cleanup(&hmac);
#ifdef TLS_DEBUG
printf("sec=");
{unsigned int z; for (z=0; z<rec->length; z++) printf("%02X ",buf[z]); printf("\n"); }
#endif
- if (ssl->version != DTLS1_VERSION)
+ if (ssl->version != DTLS1_VERSION && ssl->version != DTLS1_BAD_VER)
{
for (i=7; i>=0; i--)
{
const void *co = NULL, *so = NULL;
int col = 0, sol = 0;
+
#ifdef KSSL_DEBUG
printf ("tls1_generate_master_secret(%p,%p, %p, %d)\n", s,out, p,len);
#endif /* KSSL_DEBUG */
}
#endif
- tls1_PRF(s->s3->tmp.new_cipher->algorithm2,
+ tls1_PRF(ssl_get_algorithm2(s),
TLS_MD_MASTER_SECRET_CONST,TLS_MD_MASTER_SECRET_CONST_SIZE,
s->s3->client_random,SSL3_RANDOM_SIZE,
co, col,
so, sol,
p,len,
s->session->master_key,buff,sizeof buff);
+#ifdef SSL_DEBUG
+ fprintf(stderr, "Premaster Secret:\n");
+ BIO_dump_fp(stderr, (char *)p, len);
+ fprintf(stderr, "Client Random:\n");
+ BIO_dump_fp(stderr, (char *)s->s3->client_random, SSL3_RANDOM_SIZE);
+ fprintf(stderr, "Server Random:\n");
+ BIO_dump_fp(stderr, (char *)s->s3->server_random, SSL3_RANDOM_SIZE);
+ fprintf(stderr, "Master Secret:\n");
+ BIO_dump_fp(stderr, (char *)s->session->master_key, SSL3_MASTER_SECRET_SIZE);
+#endif
#ifdef KSSL_DEBUG
printf ("tls1_generate_master_secret() complete\n");
case SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE: return(TLS1_AD_BAD_CERTIFICATE_STATUS_RESPONSE);
case SSL_AD_BAD_CERTIFICATE_HASH_VALUE: return(TLS1_AD_BAD_CERTIFICATE_HASH_VALUE);
case SSL_AD_UNKNOWN_PSK_IDENTITY:return(TLS1_AD_UNKNOWN_PSK_IDENTITY);
+#ifndef OPENSSL_NO_SRP
+ case SSL_AD_MISSING_SRP_USERNAME:return(TLS1_AD_MISSING_SRP_USERNAME);
+#endif
#if 0 /* not appropriate for TLS, not used for DTLS */
case DTLS1_AD_MISSING_HANDSHAKE_MESSAGE: return
(DTLS1_AD_MISSING_HANDSHAKE_MESSAGE);
}
}
+int SSL_tls1_key_exporter(SSL *s, unsigned char *label, int label_len,
+ unsigned char *context, int context_len,
+ unsigned char *out, int olen)
+ {
+ unsigned char *tmp;
+ int rv;
+
+ tmp = OPENSSL_malloc(olen);
+
+ if (!tmp)
+ return 0;
+
+ rv = tls1_PRF(ssl_get_algorithm2(s),
+ label, label_len,
+ s->s3->client_random,SSL3_RANDOM_SIZE,
+ s->s3->server_random,SSL3_RANDOM_SIZE,
+ context, context_len, NULL, 0,
+ s->session->master_key, s->session->master_key_length,
+ out, tmp, olen);
+
+ OPENSSL_free(tmp);
+ return rv;
+ }
projects / openssl.git / blobdiff