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-rw-r--r--ssl/ssl_ciph.c721
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diff --git a/ssl/ssl_ciph.c b/ssl/ssl_ciph.c
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+++ b/ssl/ssl_ciph.c
@@ -0,0 +1,721 @@
+/* ssl/ssl_ciph.c */
+/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to. The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code. The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * "This product includes cryptographic software written by
+ * Eric Young (eay@cryptsoft.com)"
+ * The word 'cryptographic' can be left out if the rouines from the library
+ * being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ * the apps directory (application code) you must include an acknowledgement:
+ * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed. i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+#include <stdio.h>
+#include "objects.h"
+#include "ssl_locl.h"
+
+#define SSL_ENC_DES_IDX 0
+#define SSL_ENC_3DES_IDX 1
+#define SSL_ENC_RC4_IDX 2
+#define SSL_ENC_RC2_IDX 3
+#define SSL_ENC_IDEA_IDX 4
+#define SSL_ENC_eFZA_IDX 5
+#define SSL_ENC_NULL_IDX 6
+#define SSL_ENC_NUM_IDX 7
+
+static EVP_CIPHER *ssl_cipher_methods[SSL_ENC_NUM_IDX]={
+ NULL,NULL,NULL,NULL,NULL,NULL,
+ };
+
+#define SSL_MD_MD5_IDX 0
+#define SSL_MD_SHA0_IDX 1
+#define SSL_MD_SHA1_IDX 2
+#define SSL_MD_NUM_IDX 3
+static EVP_MD *ssl_digest_methods[SSL_MD_NUM_IDX]={
+ NULL,NULL,NULL,
+ };
+
+typedef struct cipher_sort_st
+ {
+ SSL_CIPHER *cipher;
+ int pref;
+ } CIPHER_SORT;
+
+#define CIPHER_ADD 1
+#define CIPHER_KILL 2
+#define CIPHER_DEL 3
+#define CIPHER_ORDER 4
+
+typedef struct cipher_choice_st
+ {
+ int type;
+ unsigned long algorithms;
+ unsigned long mask;
+ STACK *order;
+ } CIPHER_CHOICE;
+
+static SSL_CIPHER cipher_aliases[]={
+ {0,SSL_TXT_ALL, 0,SSL_ALL, 0,SSL_ALL}, /* must be first */
+ {0,SSL_TXT_kRSA,0,SSL_kRSA, 0,SSL_MKEY_MASK},
+ {0,SSL_TXT_kDHr,0,SSL_kDHr, 0,SSL_MKEY_MASK},
+ {0,SSL_TXT_kDHd,0,SSL_kDHd, 0,SSL_MKEY_MASK},
+ {0,SSL_TXT_kEDH,0,SSL_kEDH, 0,SSL_MKEY_MASK},
+ {0,SSL_TXT_kFZA,0,SSL_kFZA, 0,SSL_MKEY_MASK},
+ {0,SSL_TXT_DH, 0,SSL_DH, 0,SSL_MKEY_MASK},
+ {0,SSL_TXT_EDH, 0,SSL_EDH, 0,SSL_MKEY_MASK|SSL_AUTH_MASK},
+
+ {0,SSL_TXT_aRSA,0,SSL_aRSA, 0,SSL_AUTH_MASK},
+ {0,SSL_TXT_aDSS,0,SSL_aDSS, 0,SSL_AUTH_MASK},
+ {0,SSL_TXT_aFZA,0,SSL_aFZA, 0,SSL_AUTH_MASK},
+ {0,SSL_TXT_aNULL,0,SSL_aNULL,0,SSL_AUTH_MASK},
+ {0,SSL_TXT_aDH, 0,SSL_aDH, 0,SSL_AUTH_MASK},
+ {0,SSL_TXT_DSS, 0,SSL_DSS, 0,SSL_AUTH_MASK},
+
+ {0,SSL_TXT_DES, 0,SSL_DES, 0,SSL_ENC_MASK},
+ {0,SSL_TXT_3DES,0,SSL_3DES, 0,SSL_ENC_MASK},
+ {0,SSL_TXT_RC4, 0,SSL_RC4, 0,SSL_ENC_MASK},
+ {0,SSL_TXT_RC2, 0,SSL_RC2, 0,SSL_ENC_MASK},
+ {0,SSL_TXT_IDEA,0,SSL_IDEA, 0,SSL_ENC_MASK},
+ {0,SSL_TXT_eNULL,0,SSL_eNULL,0,SSL_ENC_MASK},
+ {0,SSL_TXT_eFZA,0,SSL_eFZA, 0,SSL_ENC_MASK},
+
+ {0,SSL_TXT_MD5, 0,SSL_MD5, 0,SSL_MAC_MASK},
+ {0,SSL_TXT_SHA0,0,SSL_SHA0, 0,SSL_MAC_MASK},
+ {0,SSL_TXT_SHA1,0,SSL_SHA1, 0,SSL_MAC_MASK},
+ {0,SSL_TXT_SHA, 0,SSL_SHA, 0,SSL_MAC_MASK},
+
+ {0,SSL_TXT_NULL,0,SSL_NULL, 0,SSL_ENC_MASK},
+ {0,SSL_TXT_RSA, 0,SSL_RSA, 0,SSL_AUTH_MASK|SSL_MKEY_MASK},
+ {0,SSL_TXT_ADH, 0,SSL_ADH, 0,SSL_AUTH_MASK|SSL_MKEY_MASK},
+ {0,SSL_TXT_FZA, 0,SSL_FZA, 0,SSL_AUTH_MASK|SSL_MKEY_MASK|SSL_ENC_MASK},
+
+ {0,SSL_TXT_EXP, 0,SSL_EXP, 0,SSL_EXP_MASK},
+ {0,SSL_TXT_EXPORT,0,SSL_EXPORT,0,SSL_EXP_MASK},
+ {0,SSL_TXT_SSLV2,0,SSL_SSLV2,0,SSL_SSL_MASK},
+ {0,SSL_TXT_SSLV3,0,SSL_SSLV3,0,SSL_SSL_MASK},
+ {0,SSL_TXT_LOW, 0,SSL_LOW,0,SSL_STRONG_MASK},
+ {0,SSL_TXT_MEDIUM,0,SSL_MEDIUM,0,SSL_STRONG_MASK},
+ {0,SSL_TXT_HIGH, 0,SSL_HIGH,0,SSL_STRONG_MASK},
+ };
+
+static int init_ciphers=1;
+static void load_ciphers();
+
+static int cmp_by_name(a,b)
+SSL_CIPHER **a,**b;
+ {
+ return(strcmp((*a)->name,(*b)->name));
+ }
+
+static void load_ciphers()
+ {
+ init_ciphers=0;
+ ssl_cipher_methods[SSL_ENC_DES_IDX]=
+ EVP_get_cipherbyname(SN_des_cbc);
+ ssl_cipher_methods[SSL_ENC_3DES_IDX]=
+ EVP_get_cipherbyname(SN_des_ede3_cbc);
+ ssl_cipher_methods[SSL_ENC_RC4_IDX]=
+ EVP_get_cipherbyname(SN_rc4);
+ ssl_cipher_methods[SSL_ENC_RC2_IDX]=
+ EVP_get_cipherbyname(SN_rc2_cbc);
+ ssl_cipher_methods[SSL_ENC_IDEA_IDX]=
+ EVP_get_cipherbyname(SN_idea_cbc);
+
+ ssl_digest_methods[SSL_MD_MD5_IDX]=
+ EVP_get_digestbyname(SN_md5);
+ ssl_digest_methods[SSL_MD_SHA0_IDX]=
+ EVP_get_digestbyname(SN_sha);
+ ssl_digest_methods[SSL_MD_SHA1_IDX]=
+ EVP_get_digestbyname(SN_sha1);
+ }
+
+int ssl_cipher_get_evp(c,enc,md)
+SSL_CIPHER *c;
+EVP_CIPHER **enc;
+EVP_MD **md;
+ {
+ int i;
+
+ if (c == NULL) return(0);
+
+ switch (c->algorithms & SSL_ENC_MASK)
+ {
+ case SSL_DES:
+ i=SSL_ENC_DES_IDX;
+ break;
+ case SSL_3DES:
+ i=SSL_ENC_3DES_IDX;
+ break;
+ case SSL_RC4:
+ i=SSL_ENC_RC4_IDX;
+ break;
+ case SSL_RC2:
+ i=SSL_ENC_RC2_IDX;
+ break;
+ case SSL_IDEA:
+ i=SSL_ENC_IDEA_IDX;
+ break;
+ case SSL_eNULL:
+ i=SSL_ENC_NULL_IDX;
+ break;
+ break;
+ default:
+ i= -1;
+ break;
+ }
+
+ if ((i < 0) || (i > SSL_ENC_NUM_IDX))
+ *enc=NULL;
+ else
+ {
+ if (i == SSL_ENC_NULL_IDX)
+ *enc=EVP_enc_null();
+ else
+ *enc=ssl_cipher_methods[i];
+ }
+
+ switch (c->algorithms & SSL_MAC_MASK)
+ {
+ case SSL_MD5:
+ i=SSL_MD_MD5_IDX;
+ break;
+ case SSL_SHA0:
+ i=SSL_MD_SHA0_IDX;
+ break;
+ case SSL_SHA1:
+ i=SSL_MD_SHA1_IDX;
+ break;
+ default:
+ i= -1;
+ break;
+ }
+ if ((i < 0) || (i > SSL_MD_NUM_IDX))
+ *md=NULL;
+ else
+ *md=ssl_digest_methods[i];
+
+ if ((*enc != NULL) && (*md != NULL))
+ return(1);
+ else
+ return(0);
+ }
+
+STACK *ssl_create_cipher_list(ssl_method,cipher_list,cipher_list_by_id,str)
+SSL_METHOD *ssl_method;
+STACK **cipher_list,**cipher_list_by_id;
+char *str;
+ {
+ SSL_CIPHER *c;
+ char *l;
+ STACK *ret=NULL,*ok=NULL;
+#define CL_BUF 40
+ char buf[CL_BUF];
+ char *tmp_str=NULL;
+ unsigned long mask,algorithms,ma;
+ char *start;
+ int i,j,k,num=0,ch,multi;
+ unsigned long al;
+ STACK *ca_list=NULL;
+ STACK *c_list=NULL;
+ int old_x,old_y,current_x,num_x;
+ CIPHER_CHOICE *ops=NULL;
+ SSL_CIPHER c_tmp,*cp;
+
+ if (str == NULL) return(NULL);
+
+ if (strncmp(str,"DEFAULT",7) == 0)
+ {
+ i=strlen(str)+2+strlen(SSL_DEFAULT_CIPHER_LIST);
+ if ((tmp_str=Malloc(i)) == NULL)
+ {
+ SSLerr(SSL_F_SSL_CREATE_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ strcpy(tmp_str,SSL_DEFAULT_CIPHER_LIST);
+ strcat(tmp_str,&(str[7]));
+ str=tmp_str;
+ }
+ if (init_ciphers) load_ciphers();
+
+ num=ssl_method->num_ciphers();
+
+ if ((ret=(STACK *)sk_new(NULL)) == NULL) goto err;
+ if ((c_list=(STACK *)sk_new(NULL)) == NULL) goto err;
+ if ((ca_list=(STACK *)sk_new(cmp_by_name)) == NULL) goto err;
+
+ mask =SSL_kFZA;
+#ifdef NO_RSA
+ mask|=SSL_aRSA|SSL_kRSA;
+#endif
+#ifdef NO_DSA
+ mask|=SSL_aDSS;
+#endif
+#ifdef NO_DH
+ mask|=SSL_kDHr|SSL_kDHd|SSL_kEDH|SSL_aDH;
+#endif
+
+#ifndef SSL_ALLOW_ENULL
+ mask|=SSL_eNULL;
+#endif
+
+ mask|=(ssl_cipher_methods[SSL_ENC_DES_IDX ] == NULL)?SSL_DES :0;
+ mask|=(ssl_cipher_methods[SSL_ENC_3DES_IDX] == NULL)?SSL_3DES:0;
+ mask|=(ssl_cipher_methods[SSL_ENC_RC4_IDX ] == NULL)?SSL_RC4 :0;
+ mask|=(ssl_cipher_methods[SSL_ENC_RC2_IDX ] == NULL)?SSL_RC2 :0;
+ mask|=(ssl_cipher_methods[SSL_ENC_IDEA_IDX] == NULL)?SSL_IDEA:0;
+ mask|=(ssl_cipher_methods[SSL_ENC_eFZA_IDX] == NULL)?SSL_eFZA:0;
+
+ mask|=(ssl_digest_methods[SSL_MD_MD5_IDX ] == NULL)?SSL_MD5 :0;
+ mask|=(ssl_digest_methods[SSL_MD_SHA0_IDX] == NULL)?SSL_SHA0:0;
+ mask|=(ssl_digest_methods[SSL_MD_SHA1_IDX] == NULL)?SSL_SHA1:0;
+
+ /* Get the initial list of ciphers */
+ for (i=0; i<num; i++)
+ {
+ c=ssl_method->get_cipher((unsigned int)i);
+ /* drop those that use any of that is not available */
+ if ((c != NULL) && c->valid && !(c->algorithms & mask))
+ {
+ if (!sk_push(c_list,(char *)c)) goto err;
+ if (!sk_push(ca_list,(char *)c)) goto err;
+ }
+ }
+
+ /* special case */
+ cipher_aliases[0].algorithms= ~mask;
+
+ /* get the aliases */
+ k=sizeof(cipher_aliases)/sizeof(SSL_CIPHER);
+ for (j=0; j<k; j++)
+ {
+ al=cipher_aliases[j].algorithms;
+ /* Drop those that are not relevent */
+ if ((al & mask) == al) continue;
+ if (!sk_push(ca_list,(char *)&(cipher_aliases[j]))) goto err;
+ }
+
+ /* ca_list now holds a 'stack' of SSL_CIPHERS, some real, some
+ * 'aliases' */
+
+ /* how many parameters are there? */
+ num=1;
+ for (l=str; *l; l++)
+ if (*l == ':') num++;
+ ops=(CIPHER_CHOICE *)Malloc(sizeof(CIPHER_CHOICE)*num);
+ if (ops == NULL) goto err;
+ memset(ops,0,sizeof(CIPHER_CHOICE)*num);
+ for (i=0; i<num; i++)
+ if ((ops[i].order=sk_new_null()) == NULL) goto err;
+
+ /* we now parse the input string and create our operations */
+ l=str;
+ i=0;
+ current_x=0;
+
+ for (;;)
+ {
+ ch= *l;
+ if (ch == '-')
+ { j=CIPHER_DEL; l++; }
+ else if (ch == '+')
+ { j=CIPHER_ORDER; l++; }
+ else if (ch == '!')
+ { j=CIPHER_KILL; l++; }
+ else
+ { j=CIPHER_ADD; }
+
+ if (*l == ':')
+ {
+ l++;
+ continue;
+ }
+ ops[current_x].type=j;
+ ops[current_x].algorithms=0;
+ ops[current_x].mask=0;
+
+ start=l;
+ for (;;)
+ {
+ ch= *l;
+ i=0;
+ while ( ((ch >= 'A') && (ch <= 'Z')) ||
+ ((ch >= '0') && (ch <= '9')) ||
+ ((ch >= 'a') && (ch <= 'z')) ||
+ (ch == '-'))
+ {
+ buf[i]=ch;
+ ch= *(++l);
+ i++;
+ if (i >= (CL_BUF-2)) break;
+ }
+ buf[i]='\0';
+ if (ch != '\0') l++;
+
+ /* check for multi-part specification */
+ multi=(ch == '+')?1:0;
+
+ c_tmp.name=buf;
+ j=sk_find(ca_list,(char *)&c_tmp);
+ if (j < 0)
+ {
+ if (ch == '\0')
+ break;
+ else
+ continue;
+ }
+
+ cp=(SSL_CIPHER *)sk_value(ca_list,j);
+ ops[current_x].algorithms|=cp->algorithms;
+ /* We add the SSL_SSL_MASK so we can match the
+ * SSLv2 and SSLv3 versions of RC4-MD5 */
+ ops[current_x].mask|=cp->mask;
+ if (!multi) break;
+ }
+ current_x++;
+ if (ch == '\0') break;
+ }
+
+ num_x=current_x;
+ current_x=0;
+
+#ifdef CIPHER_DEBUG
+ printf("<--->\n");
+#endif
+
+ for (i=0; i<sk_num(c_list); i++)
+ {
+ old_x= -1;
+ old_y= -1;
+ cp=(SSL_CIPHER *)sk_value(c_list,i);
+#ifdef CIPHER_DEBUG
+ printf("[%s]\n",cp->name);
+#endif
+ for (j=0; j<num_x; j++)
+ {
+ algorithms=ops[j].algorithms;
+ ma=ops[j].mask & cp->algorithms;
+#ifdef CIPHER_DEBUG
+ printf(" %s %08lX&%08lX==0 || %08lX != %08lX \n",
+ cp->name,ops[j].mask,cp->algorithms,ma,algorithms);
+#endif
+ if ((ma == 0) || ((ma & algorithms) != ma))
+ {
+ continue;
+ }
+ k=ops[j].type;
+#ifdef CIPHER_DEBUG
+ printf(">>%s\n",cp->name);
+#endif
+
+ /* add the cipher if it has not been added yet. */
+ if (k == CIPHER_ADD)
+ {
+ if (old_x < 0)
+ {
+ old_x=j;
+ old_y=sk_num(ops[j].order);
+ sk_push(ops[j].order,(char *)cp);
+ }
+ }
+ /* Move the added cipher to this location */
+ else if (k == CIPHER_ORDER)
+ {
+ if (old_x >= 0)
+ {
+ sk_value(ops[old_x].order,old_y)=NULL;
+ old_y=sk_num(ops[j].order);
+ sk_push(ops[j].order,(char *)cp);
+ old_x=j;
+ }
+ }
+ /* Remove added cipher */
+ else if ((k == CIPHER_DEL) || (k == CIPHER_KILL))
+ {
+ if (old_x >= 0)
+ {
+ sk_value(ops[old_x].order,old_y)=NULL;
+ old_x= -1;
+ }
+ if (k == CIPHER_KILL)
+ break;
+ }
+ }
+ }
+
+ for (i=0; i<num_x; i++)
+ {
+ for (j=0; j<sk_num(ops[i].order); j++)
+ {
+ cp=(SSL_CIPHER *)sk_value(ops[i].order,j);
+ if (cp != NULL)
+ {
+ sk_push(ret,(char *)cp);
+#ifdef CIPHER_DEBUG
+ printf("<%s>\n",cp->name);
+#endif
+ }
+ }
+ }
+
+ if (cipher_list != NULL)
+ {
+ if (*cipher_list != NULL)
+ sk_free(*cipher_list);
+ *cipher_list=ret;
+ }
+
+ if (cipher_list_by_id != NULL)
+ {
+ if (*cipher_list_by_id != NULL)
+ sk_free(*cipher_list_by_id);
+ *cipher_list_by_id=sk_dup(ret);
+ }
+
+ if ( (cipher_list_by_id == NULL) ||
+ (*cipher_list_by_id == NULL) ||
+ (cipher_list == NULL) ||
+ (*cipher_list == NULL))
+ goto err;
+ sk_set_cmp_func(*cipher_list_by_id,ssl_cipher_ptr_id_cmp);
+
+ ok=ret;
+ ret=NULL;
+err:
+ if (tmp_str) Free(tmp_str);
+ if (ops != NULL)
+ {
+ for (i=0; i<num; i++)
+ if (ops[i].order != NULL)
+ sk_free(ops[i].order);
+ Free(ops);
+ }
+ if (ret != NULL) sk_free(ret);
+ if (c_list != NULL) sk_free(c_list);
+ if (ca_list != NULL) sk_free(ca_list);
+ return(ok);
+ }
+
+char *SSL_CIPHER_description(cipher,buf,len)
+SSL_CIPHER *cipher;
+char *buf;
+int len;
+ {
+ int export;
+ char *ver,*exp;
+ char *kx,*au,*enc,*mac;
+ unsigned long alg,alg2;
+ static char *format="%-23s %s Kx=%-8s Au=%-4s Enc=%-9s Mac=%-4s%s\n";
+
+ alg=cipher->algorithms;
+ alg2=cipher->algorithm2;
+
+ export=(alg&SSL_EXP)?1:0;
+ exp=(export)?" export":"";
+
+ if (alg & SSL_SSLV2)
+ ver="SSLv2";
+ else if (alg & SSL_SSLV3)
+ ver="SSLv3";
+ else
+ ver="unknown";
+
+ switch (alg&SSL_MKEY_MASK)
+ {
+ case SSL_kRSA:
+ kx=(export)?"RSA(512)":"RSA";
+ break;
+ case SSL_kDHr:
+ kx="DH/RSA";
+ break;
+ case SSL_kDHd:
+ kx="DH/DSS";
+ break;
+ case SSL_kFZA:
+ kx="Fortezza";
+ break;
+ case SSL_kEDH:
+ kx=(export)?"DH(512)":"DH";
+ break;
+ default:
+ kx="unknown";
+ }
+
+ switch (alg&SSL_AUTH_MASK)
+ {
+ case SSL_aRSA:
+ au="RSA";
+ break;
+ case SSL_aDSS:
+ au="DSS";
+ break;
+ case SSL_aDH:
+ au="DH";
+ break;
+ case SSL_aFZA:
+ case SSL_aNULL:
+ au="None";
+ break;
+ default:
+ au="unknown";
+ break;
+ }
+
+ switch (alg&SSL_ENC_MASK)
+ {
+ case SSL_DES:
+ enc=export?"DES(40)":"DES(56)";
+ break;
+ case SSL_3DES:
+ enc="3DES(168)";
+ break;
+ case SSL_RC4:
+ enc=export?"RC4(40)":((alg2&SSL2_CF_8_BYTE_ENC)?"RC4(64)":"RC4(128)");
+ break;
+ case SSL_RC2:
+ enc=export?"RC2(40)":"RC2(128)";
+ break;
+ case SSL_IDEA:
+ enc="IDEA(128)";
+ break;
+ case SSL_eFZA:
+ enc="Fortezza";
+ break;
+ case SSL_eNULL:
+ enc="None";
+ break;
+ default:
+ enc="unknown";
+ break;
+ }
+
+ switch (alg&SSL_MAC_MASK)
+ {
+ case SSL_MD5:
+ mac="MD5";
+ break;
+ case SSL_SHA0:
+ mac="SHA0";
+ break;
+ case SSL_SHA1:
+ mac="SHA1";
+ break;
+ default:
+ mac="unknown";
+ break;
+ }
+
+ if (buf == NULL)
+ {
+ buf=Malloc(128);
+ if (buf == NULL) return("Malloc Error");
+ }
+ else if (len < 128)
+ return("Buffer too small");
+
+ sprintf(buf,format,cipher->name,ver,kx,au,enc,mac,exp);
+ return(buf);
+ }
+
+char *SSL_CIPHER_get_version(c)
+SSL_CIPHER *c;
+ {
+ int i;
+
+ i=(int)(c->id>>24L);
+ if (i == 3)
+ return("SSLv3");
+ else if (i == 2)
+ return("SSLv2");
+ else
+ return("unknown");
+ }
+
+/* return the actual cipher being used */
+char *SSL_CIPHER_get_name(c)
+SSL_CIPHER *c;
+ {
+ if (c != NULL)
+ return(c->name);
+ return("(NONE)");
+ }
+
+/* number of bits for symetric cipher */
+int SSL_CIPHER_get_bits(c,alg_bits)
+SSL_CIPHER *c;
+int *alg_bits;
+ {
+ int ret=0,a=0;
+ EVP_CIPHER *enc;
+ EVP_MD *md;
+
+ if (c != NULL)
+ {
+ if (!ssl_cipher_get_evp(c,&enc,&md))
+ return(0);
+
+ a=EVP_CIPHER_key_length(enc)*8;
+
+ if (c->algorithms & SSL_EXP)
+ {
+ ret=40;
+ }
+ else
+ {
+ if (c->algorithm2 & SSL2_CF_8_BYTE_ENC)
+ ret=64;
+ else
+ ret=a;
+ }
+ }
+
+ if (alg_bits != NULL) *alg_bits=a;
+
+ return(ret);
+ }
+
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-17 14:50:58 +0000