X-Git-Url: https://git.openssl.org/?a=blobdiff_plain;f=ssl%2Ft1_enc.c;h=11cd1b6e8233a94c9368da11735c0e7222f21b2e;hb=287973746edec466d6e9cac72e27cf2978da8629;hp=893c0bc73bf246e3d3aca16a0923fab6d8a811db;hpb=dfeab0689f69c0b4bd3480ffd37a9cacc2f17d9c;p=openssl.git

diff --git a/ssl/t1_enc.c b/ssl/t1_enc.c
index 893c0bc73b..11cd1b6e82 100644
--- a/ssl/t1_enc.c
+++ b/ssl/t1_enc.c
@@ -57,18 +57,15 @@
  */
 
 #include <stdio.h>
-#include "evp.h"
-#include "hmac.h"
+#include <openssl/comp.h>
+#include <openssl/evp.h>
+#include <openssl/hmac.h>
 #include "ssl_locl.h"
+#include <openssl/md5.h>
 
-static void tls1_P_hash(md,sec,sec_len,seed,seed_len,out,olen)
-EVP_MD *md;
-unsigned char *sec;
-int sec_len;
-unsigned char *seed;
-int seed_len;
-unsigned char *out;
-int olen;
+static void tls1_P_hash(const EVP_MD *md, const unsigned char *sec,
+			int sec_len, unsigned char *seed, int seed_len,
+			unsigned char *out, int olen)
 	{
 	int chunk,n;
 	unsigned int j;
@@ -79,7 +76,10 @@ int olen;
 	
 	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);
 
@@ -87,8 +87,9 @@ int olen;
 	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)
@@ -105,24 +106,18 @@ int olen;
 			break;
 			}
 		}
-	HMAC_cleanup(&ctx);
-	HMAC_cleanup(&ctx_tmp);
+	HMAC_CTX_cleanup(&ctx);
+	HMAC_CTX_cleanup(&ctx_tmp);
 	memset(A1,0,sizeof(A1));
 	}
 
-static void tls1_PRF(md5,sha1,label,label_len,sec,slen,out1,out2,olen)
-EVP_MD *md5;
-EVP_MD *sha1;
-unsigned char *label;
-int label_len;
-unsigned char *sec;
-int slen;
-unsigned char *out1;
-unsigned char *out2;
-int olen;
+static void tls1_PRF(const EVP_MD *md5, const EVP_MD *sha1,
+		     unsigned char *label, int label_len,
+		     const unsigned char *sec, int slen, unsigned char *out1,
+		     unsigned char *out2, int olen)
 	{
 	int len,i;
-	unsigned char *S1,*S2;
+	const unsigned char *S1,*S2;
 
 	len=slen/2;
 	S1=sec;
@@ -137,10 +132,8 @@ int olen;
 		out1[i]^=out2[i];
 	}
 
-static void tls1_generate_key_block(s,km,tmp,num)
-SSL *s;
-unsigned char *km,*tmp;
-int num;
+static void tls1_generate_key_block(SSL *s, unsigned char *km,
+	     unsigned char *tmp, int num)
 	{
 	unsigned char *p;
 	unsigned char buf[SSL3_RANDOM_SIZE*2+
@@ -156,14 +149,24 @@ int num;
 	p+=SSL3_RANDOM_SIZE;
 
 	tls1_PRF(s->ctx->md5,s->ctx->sha1,buf,(int)(p-buf),
-		s->session->master_key,s->session->master_key_length,
-		km,tmp,num);
+		 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(s,which)
-SSL *s;
-int which;
+int tls1_change_cipher_state(SSL *s, int which)
 	{
+	static const unsigned char empty[]="";
 	unsigned char *p,*key_block,*mac_secret;
 	unsigned char *exp_label,buf[TLS_MD_MAX_CONST_SIZE+
 		SSL3_RANDOM_SIZE*2];
@@ -174,22 +177,38 @@ int which;
 	unsigned char *ms,*key,*iv,*er1,*er2;
 	int client_write;
 	EVP_CIPHER_CTX *dd;
-	EVP_CIPHER *c;
-	COMP_METHOD *comp;
-	EVP_MD *m;
-	int exp,n,i,j,k,exp_label_len;
+	const EVP_CIPHER *c;
+	const SSL_COMP *comp;
+	const EVP_MD *m;
+	int is_export,n,i,j,k,exp_label_len,cl;
+	int reuse_dd = 0;
 
-	exp=(s->s3->tmp.new_cipher->algorithms & SSL_EXPORT)?1:0;
+	is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
 	c=s->s3->tmp.new_sym_enc;
 	m=s->s3->tmp.new_hash;
 	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))
+		if (s->enc_read_ctx != NULL)
+			reuse_dd = 1;
+		else if ((s->enc_read_ctx=OPENSSL_malloc(sizeof(EVP_CIPHER_CTX))) == NULL)
 			goto err;
 		dd= s->enc_read_ctx;
 		s->read_hash=m;
@@ -200,14 +219,15 @@ int which;
 			}
 		if (comp != NULL)
 			{
-			s->expand=COMP_CTX_new(comp);
+			s->expand=COMP_CTX_new(comp->method);
 			if (s->expand == NULL)
 				{
 				SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE,SSL_R_COMPRESSION_LIBRARY_ERROR);
 				goto err2;
 				}
-			s->s3->rrec.comp=(unsigned char *)
-				Malloc(SSL3_RT_MAX_ENCRYPTED_LENGTH);
+			if (s->s3->rrec.comp == NULL)
+				s->s3->rrec.comp=(unsigned char *)
+					OPENSSL_malloc(SSL3_RT_MAX_ENCRYPTED_LENGTH);
 			if (s->s3->rrec.comp == NULL)
 				goto err;
 			}
@@ -216,9 +236,13 @@ int which;
 		}
 	else
 		{
+		if (s->enc_write_ctx != NULL)
+			reuse_dd = 1;
+		else if ((s->enc_write_ctx=OPENSSL_malloc(sizeof(EVP_CIPHER_CTX))) == 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;
@@ -229,7 +253,7 @@ int which;
 			}
 		if (comp != NULL)
 			{
-			s->compress=COMP_CTX_new(comp);
+			s->compress=COMP_CTX_new(comp->method);
 			if (s->compress == NULL)
 				{
 				SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE,SSL_R_COMPRESSION_LIBRARY_ERROR);
@@ -240,11 +264,16 @@ int which;
 		mac_secret= &(s->s3->write_mac_secret[0]);
 		}
 
+	if (reuse_dd)
+		EVP_CIPHER_CTX_cleanup(dd);
 	EVP_CIPHER_CTX_init(dd);
 
 	p=s->s3->tmp.key_block;
 	i=EVP_MD_size(m);
-	j=(exp)?5:EVP_CIPHER_key_length(c);
+	cl=EVP_CIPHER_key_length(c);
+	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); */
 	k=EVP_CIPHER_iv_length(c);
 	er1= &(s->s3->client_random[0]);
 	er2= &(s->s3->server_random[0]);
@@ -271,7 +300,7 @@ int which;
 
 	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;
 		}
 
@@ -280,7 +309,7 @@ int which;
 printf("which = %04X\nmac key=",which);
 { int z; for (z=0; z<i; z++) printf("%02X%c",ms[z],((z+1)%16)?' ':'\n'); }
 #endif
-	if (exp)
+	if (is_export)
 		{
 		/* In here I set both the read and write key/iv to the
 		 * same value since only the correct one will be used :-).
@@ -293,7 +322,7 @@ printf("which = %04X\nmac key=",which);
 		memcpy(p,s->s3->server_random,SSL3_RANDOM_SIZE);
 		p+=SSL3_RANDOM_SIZE;
 		tls1_PRF(s->ctx->md5,s->ctx->sha1,buf,(int)(p-buf),key,j,
-			tmp1,tmp2,EVP_CIPHER_key_length(c));
+			 tmp1,tmp2,EVP_CIPHER_key_length(c));
 		key=tmp1;
 
 		if (k > 0)
@@ -306,8 +335,8 @@ printf("which = %04X\nmac key=",which);
 			p+=SSL3_RANDOM_SIZE;
 			memcpy(p,s->s3->server_random,SSL3_RANDOM_SIZE);
 			p+=SSL3_RANDOM_SIZE;
-			tls1_PRF(s->ctx->md5,s->ctx->sha1,
-				buf,(int)(p-buf),"",0,iv1,iv2,k*2);
+			tls1_PRF(s->ctx->md5,s->ctx->sha1,buf,p-buf,empty,0,
+				 iv1,iv2,k*2);
 			if (client_write)
 				iv=iv1;
 			else
@@ -316,8 +345,18 @@ printf("which = %04X\nmac key=",which);
 		}
 
 	s->session->key_arg_length=0;
+#ifdef KSSL_DEBUG
+	{
+        int i;
+	printf("EVP_CipherInit_ex(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));
+	EVP_CipherInit_ex(dd,c,NULL,key,iv,(which & SSL3_CC_WRITE));
 #ifdef TLS_DEBUG
 printf("which = %04X\nkey=",which);
 { int z; for (z=0; z<EVP_CIPHER_key_length(c); z++) printf("%02X%c",key[z],((z+1)%16)?' ':'\n'); }
@@ -337,18 +376,22 @@ err2:
 	return(0);
 	}
 
-int tls1_setup_key_block(s)
-SSL *s;
+int tls1_setup_key_block(SSL *s)
 	{
 	unsigned char *p1,*p2;
-	EVP_CIPHER *c;
-	EVP_MD *hash;
-	int num,exp;
+	const EVP_CIPHER *c;
+	const EVP_MD *hash;
+	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);
 
-	if (!ssl_cipher_get_evp(s->session->cipher,&c,&hash))
+	if (!ssl_cipher_get_evp(s->session,&c,&hash,&comp))
 		{
 		SSLerr(SSL_F_TLS1_SETUP_KEY_BLOCK,SSL_R_CIPHER_OR_HASH_UNAVAILABLE);
 		return(0);
@@ -357,16 +400,14 @@ SSL *s;
 	s->s3->tmp.new_sym_enc=c;
 	s->s3->tmp.new_hash=hash;
 
-	exp=(s->session->cipher->algorithms & SSL_EXPORT)?1:0;
-
 	num=EVP_CIPHER_key_length(c)+EVP_MD_size(hash)+EVP_CIPHER_iv_length(c);
 	num*=2;
 
 	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;
@@ -383,7 +424,7 @@ printf("pre-master\n");
 #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'); }
@@ -395,15 +436,13 @@ err:
 	return(0);
 	}
 
-int tls1_enc(s,send)
-SSL *s;
-int send;
+int tls1_enc(SSL *s, int send)
 	{
 	SSL3_RECORD *rec;
 	EVP_CIPHER_CTX *ds;
 	unsigned long l;
 	int bs,i,ii,j,k,n=0;
-	EVP_CIPHER *enc;
+	const EVP_CIPHER *enc;
 
 	if (send)
 		{
@@ -428,10 +467,14 @@ int send;
 			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
@@ -458,11 +501,48 @@ int send;
 			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)
 				{
@@ -473,19 +553,22 @@ int send;
 				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;
@@ -494,25 +577,20 @@ int send;
 	return(1);
 	}
 
-int tls1_cert_verify_mac(s,in_ctx,out)
-SSL *s;
-EVP_MD_CTX *in_ctx;
-unsigned char *out;
+int tls1_cert_verify_mac(SSL *s, EVP_MD_CTX *in_ctx, unsigned char *out)
 	{
 	unsigned int ret;
 	EVP_MD_CTX ctx;
 
-	memcpy(&ctx,in_ctx,sizeof(EVP_MD_CTX));
-	EVP_DigestFinal(&ctx,out,&ret);
+	EVP_MD_CTX_init(&ctx);
+	EVP_MD_CTX_copy_ex(&ctx,in_ctx);
+	EVP_DigestFinal_ex(&ctx,out,&ret);
+	EVP_MD_CTX_cleanup(&ctx);
 	return((int)ret);
 	}
 
-int tls1_final_finish_mac(s,in1_ctx,in2_ctx,str,slen,out)
-SSL *s;
-EVP_MD_CTX *in1_ctx,*in2_ctx;
-unsigned char *str;
-int slen;
-unsigned char *out;
+int tls1_final_finish_mac(SSL *s, EVP_MD_CTX *in1_ctx, EVP_MD_CTX *in2_ctx,
+	     const char *str, int slen, unsigned char *out)
 	{
 	unsigned int i;
 	EVP_MD_CTX ctx;
@@ -523,29 +601,27 @@ unsigned char *out;
 	memcpy(q,str,slen);
 	q+=slen;
 
-	memcpy(&ctx,in1_ctx,sizeof(EVP_MD_CTX));
-	EVP_DigestFinal(&ctx,q,&i);
+	EVP_MD_CTX_init(&ctx);
+	EVP_MD_CTX_copy_ex(&ctx,in1_ctx);
+	EVP_DigestFinal_ex(&ctx,q,&i);
 	q+=i;
-	memcpy(&ctx,in2_ctx,sizeof(EVP_MD_CTX));
-	EVP_DigestFinal(&ctx,q,&i);
+	EVP_MD_CTX_copy_ex(&ctx,in2_ctx);
+	EVP_DigestFinal_ex(&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);
 	}
 
-int tls1_mac(ssl,md,send)
-SSL *ssl;
-unsigned char *md;
-int send;
+int tls1_mac(SSL *ssl, unsigned char *md, int send)
 	{
 	SSL3_RECORD *rec;
 	unsigned char *mac_sec,*seq;
-	EVP_MD *hash;
+	const EVP_MD *hash;
 	unsigned int md_size;
 	int i;
 	HMAC_CTX hmac;
@@ -575,11 +651,13 @@ int send;
 	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=");
@@ -593,7 +671,10 @@ printf("rec=");
 #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"); }
@@ -601,15 +682,16 @@ printf("rec=");
 	return(md_size);
 	}
 
-int tls1_generate_master_secret(s,out,p,len)
-SSL *s;
-unsigned char *out;
-unsigned char *p;
-int len;
+int tls1_generate_master_secret(SSL *s, unsigned char *out, unsigned char *p,
+	     int len)
 	{
 	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);
@@ -620,11 +702,13 @@ int len;
 	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);
 	}
 
-int tls1_alert_code(code)
-int code;
+int tls1_alert_code(int code)
 	{
 	switch (code)
 		{
@@ -646,11 +730,11 @@ int code;
 	case SSL_AD_ACCESS_DENIED:	return(TLS1_AD_ACCESS_DENIED);
 	case SSL_AD_DECODE_ERROR:	return(TLS1_AD_DECODE_ERROR);
 	case SSL_AD_DECRYPT_ERROR:	return(TLS1_AD_DECRYPT_ERROR);
-	case SSL_AD_EXPORT_RESTRICION:	return(TLS1_AD_EXPORT_RESTRICION);
+	case SSL_AD_EXPORT_RESTRICTION:	return(TLS1_AD_EXPORT_RESTRICTION);
 	case SSL_AD_PROTOCOL_VERSION:	return(TLS1_AD_PROTOCOL_VERSION);
 	case SSL_AD_INSUFFICIENT_SECURITY:return(TLS1_AD_INSUFFICIENT_SECURITY);
 	case SSL_AD_INTERNAL_ERROR:	return(TLS1_AD_INTERNAL_ERROR);
-	case SSL_AD_USER_CANCLED:	return(TLS1_AD_USER_CANCLED);
+	case SSL_AD_USER_CANCELLED:	return(TLS1_AD_USER_CANCELLED);
 	case SSL_AD_NO_RENEGOTIATION:	return(TLS1_AD_NO_RENEGOTIATION);
 	default:			return(-1);
 		}