X-Git-Url: https://git.openssl.org/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fx509%2Fx509_cmp.c;h=5dfdcd41cb4ffe117604c6b3ab005a0f52e15a63;hp=f9d9510ac50762a0541030bc428ab0a8177950b3;hb=e6526fbf4dc894d71ae3517a1ba484475b79b402;hpb=58964a492275ca9a59a0cd9c8155cb2491b4b909

diff --git a/crypto/x509/x509_cmp.c b/crypto/x509/x509_cmp.c
index f9d9510ac5..5dfdcd41cb 100644
--- a/crypto/x509/x509_cmp.c
+++ b/crypto/x509/x509_cmp.c
@@ -57,118 +57,230 @@
  */
 
 #include <stdio.h>
-#include <sys/types.h>
-#include <sys/stat.h>
+#include <ctype.h>
 #include "cryptlib.h"
-#include "asn1.h"
-#include "objects.h"
-#include "x509.h"
+#include <openssl/asn1.h>
+#include <openssl/objects.h>
+#include <openssl/x509.h>
+#include <openssl/x509v3.h>
 
-int X509_issuer_and_serial_cmp(a,b)
-X509 *a;
-X509 *b;
+int X509_issuer_and_serial_cmp(const X509 *a, const X509 *b)
 	{
 	int i;
 	X509_CINF *ai,*bi;
 
 	ai=a->cert_info;
 	bi=b->cert_info;
-	i=ASN1_INTEGER_cmp(ai->serialNumber,bi->serialNumber);
+	i=M_ASN1_INTEGER_cmp(ai->serialNumber,bi->serialNumber);
 	if (i) return(i);
 	return(X509_NAME_cmp(ai->issuer,bi->issuer));
 	}
 
-#ifndef NO_MD5
-unsigned long X509_issuer_and_serial_hash(a)
-X509 *a;
+#ifndef OPENSSL_NO_MD5
+unsigned long X509_issuer_and_serial_hash(X509 *a)
 	{
 	unsigned long ret=0;
-	MD5_CTX ctx;
+	EVP_MD_CTX ctx;
 	unsigned char md[16];
-	char str[256];
+	char *f;
 
-	X509_NAME_oneline(a->cert_info->issuer,str,256);
-	ret=strlen(str);
-	MD5_Init(&ctx);
-	MD5_Update(&ctx,(unsigned char *)str,ret);
-	MD5_Update(&ctx,(unsigned char *)a->cert_info->serialNumber->data,
+	EVP_MD_CTX_init(&ctx);
+	f=X509_NAME_oneline(a->cert_info->issuer,NULL,0);
+	ret=strlen(f);
+	EVP_DigestInit_ex(&ctx, EVP_md5(), NULL);
+	EVP_DigestUpdate(&ctx,(unsigned char *)f,ret);
+	OPENSSL_free(f);
+	EVP_DigestUpdate(&ctx,(unsigned char *)a->cert_info->serialNumber->data,
 		(unsigned long)a->cert_info->serialNumber->length);
-	MD5_Final(&(md[0]),&ctx);
+	EVP_DigestFinal_ex(&ctx,&(md[0]),NULL);
 	ret=(	((unsigned long)md[0]     )|((unsigned long)md[1]<<8L)|
 		((unsigned long)md[2]<<16L)|((unsigned long)md[3]<<24L)
 		)&0xffffffffL;
+	EVP_MD_CTX_cleanup(&ctx);
 	return(ret);
 	}
 #endif
 	
-int X509_issuer_name_cmp(a, b)
-X509 *a;
-X509 *b;
+int X509_issuer_name_cmp(const X509 *a, const X509 *b)
 	{
 	return(X509_NAME_cmp(a->cert_info->issuer,b->cert_info->issuer));
 	}
 
-int X509_subject_name_cmp(a, b)
-X509 *a;
-X509 *b;
+int X509_subject_name_cmp(const X509 *a, const X509 *b)
 	{
 	return(X509_NAME_cmp(a->cert_info->subject,b->cert_info->subject));
 	}
 
-int X509_CRL_cmp(a, b)
-X509_CRL *a;
-X509_CRL *b;
+int X509_CRL_cmp(const X509_CRL *a, const X509_CRL *b)
 	{
 	return(X509_NAME_cmp(a->crl->issuer,b->crl->issuer));
 	}
 
-X509_NAME *X509_get_issuer_name(a)
-X509 *a;
+X509_NAME *X509_get_issuer_name(X509 *a)
 	{
 	return(a->cert_info->issuer);
 	}
 
-unsigned long X509_issuer_name_hash(x)
-X509 *x;
+unsigned long X509_issuer_name_hash(X509 *x)
 	{
 	return(X509_NAME_hash(x->cert_info->issuer));
 	}
 
-X509_NAME *X509_get_subject_name(a)
-X509 *a;
+X509_NAME *X509_get_subject_name(X509 *a)
 	{
 	return(a->cert_info->subject);
 	}
 
-ASN1_INTEGER *X509_get_serialNumber(a)
-X509 *a;
+ASN1_INTEGER *X509_get_serialNumber(X509 *a)
 	{
 	return(a->cert_info->serialNumber);
 	}
 
-unsigned long X509_subject_name_hash(x)
-X509 *x;
+unsigned long X509_subject_name_hash(X509 *x)
 	{
 	return(X509_NAME_hash(x->cert_info->subject));
 	}
 
-int X509_NAME_cmp(a, b)
-X509_NAME *a;
-X509_NAME *b;
+#ifndef OPENSSL_NO_SHA
+/* Compare two certificates: they must be identical for
+ * this to work. NB: Although "cmp" operations are generally
+ * prototyped to take "const" arguments (eg. for use in
+ * STACKs), the way X509 handling is - these operations may
+ * involve ensuring the hashes are up-to-date and ensuring
+ * certain cert information is cached. So this is the point
+ * where the "depth-first" constification tree has to halt
+ * with an evil cast.
+ */
+int X509_cmp(const X509 *a, const X509 *b)
+{
+	/* ensure hash is valid */
+	X509_check_purpose((X509 *)a, -1, 0);
+	X509_check_purpose((X509 *)b, -1, 0);
+
+	return memcmp(a->sha1_hash, b->sha1_hash, SHA_DIGEST_LENGTH);
+}
+#endif
+
+
+/* Case insensitive string comparision */
+static int nocase_cmp(const ASN1_STRING *a, const ASN1_STRING *b)
+{
+	int i;
+
+	if (a->length != b->length)
+		return (a->length - b->length);
+
+	for (i=0; i<a->length; i++)
+	{
+		int ca, cb;
+
+		ca = tolower(a->data[i]);
+		cb = tolower(b->data[i]);
+
+		if (ca != cb)
+			return(ca-cb);
+	}
+	return 0;
+}
+
+/* Case insensitive string comparision with space normalization 
+ * Space normalization - ignore leading, trailing spaces, 
+ *       multiple spaces between characters are replaced by single space  
+ */
+static int nocase_spacenorm_cmp(const ASN1_STRING *a, const ASN1_STRING *b)
+{
+	unsigned char *pa = NULL, *pb = NULL;
+	int la, lb;
+	
+	la = a->length;
+	lb = b->length;
+	pa = a->data;
+	pb = b->data;
+
+	/* skip leading spaces */
+	while (la > 0 && isspace(*pa))
+	{
+		la--;
+		pa++;
+	}
+	while (lb > 0 && isspace(*pb))
+	{
+		lb--;
+		pb++;
+	}
+
+	/* skip trailing spaces */
+	while (la > 0 && isspace(pa[la-1]))
+		la--;
+	while (lb > 0 && isspace(pb[lb-1]))
+		lb--;
+
+	/* compare strings with space normalization */
+	while (la > 0 && lb > 0)
+	{
+		int ca, cb;
+
+		/* compare character */
+		ca = tolower(*pa);
+		cb = tolower(*pb);
+		if (ca != cb)
+			return (ca - cb);
+
+		pa++; pb++;
+		la--; lb--;
+
+		if (la <= 0 || lb <= 0)
+			break;
+
+		/* is white space next character ? */
+		if (isspace(*pa) && isspace(*pb))
+		{
+			/* skip remaining white spaces */
+			while (la > 0 && isspace(*pa))
+			{
+				la--;
+				pa++;
+			}
+			while (lb > 0 && isspace(*pb))
+			{
+				lb--;
+				pb++;
+			}
+		}
+	}
+	if (la > 0 || lb > 0)
+		return la - lb;
+
+	return 0;
+}
+
+int X509_NAME_cmp(const X509_NAME *a, const X509_NAME *b)
 	{
 	int i,j;
 	X509_NAME_ENTRY *na,*nb;
 
-	if (sk_num(a->entries) != sk_num(b->entries))
-		return(sk_num(a->entries)-sk_num(b->entries));
-	for (i=sk_num(a->entries)-1; i>=0; i--)
+	if (sk_X509_NAME_ENTRY_num(a->entries)
+	    != sk_X509_NAME_ENTRY_num(b->entries))
+		return sk_X509_NAME_ENTRY_num(a->entries)
+		  -sk_X509_NAME_ENTRY_num(b->entries);
+	for (i=sk_X509_NAME_ENTRY_num(a->entries)-1; i>=0; i--)
 		{
-		na=(X509_NAME_ENTRY *)sk_value(a->entries,i);
-		nb=(X509_NAME_ENTRY *)sk_value(b->entries,i);
-		j=na->value->length-nb->value->length;
+		na=sk_X509_NAME_ENTRY_value(a->entries,i);
+		nb=sk_X509_NAME_ENTRY_value(b->entries,i);
+		j=na->value->type-nb->value->type;
 		if (j) return(j);
-		j=memcmp(na->value->data,nb->value->data,
-			na->value->length);
+		if (na->value->type == V_ASN1_PRINTABLESTRING)
+			j=nocase_spacenorm_cmp(na->value, nb->value);
+		else if (na->value->type == V_ASN1_IA5STRING
+			&& OBJ_obj2nid(na->object) == NID_pkcs9_emailAddress)
+			j=nocase_cmp(na->value, nb->value);
+		else
+			{
+			j=na->value->length-nb->value->length;
+			if (j) return(j);
+			j=memcmp(na->value->data,nb->value->data,
+				na->value->length);
+			}
 		if (j) return(j);
 		j=na->set-nb->set;
 		if (j) return(j);
@@ -177,37 +289,27 @@ X509_NAME *b;
 	/* We will check the object types after checking the values
 	 * since the values will more often be different than the object
 	 * types. */
-	for (i=sk_num(a->entries)-1; i>=0; i--)
+	for (i=sk_X509_NAME_ENTRY_num(a->entries)-1; i>=0; i--)
 		{
-		na=(X509_NAME_ENTRY *)sk_value(a->entries,i);
-		nb=(X509_NAME_ENTRY *)sk_value(b->entries,i);
+		na=sk_X509_NAME_ENTRY_value(a->entries,i);
+		nb=sk_X509_NAME_ENTRY_value(b->entries,i);
 		j=OBJ_cmp(na->object,nb->object);
 		if (j) return(j);
 		}
 	return(0);
 	}
 
-#ifndef NO_MD5
+#ifndef OPENSSL_NO_MD5
 /* I now DER encode the name and hash it.  Since I cache the DER encoding,
- * this is reasonably effiecent. */
-unsigned long X509_NAME_hash(x)
-X509_NAME *x;
+ * this is reasonably efficient. */
+unsigned long X509_NAME_hash(X509_NAME *x)
 	{
 	unsigned long ret=0;
 	unsigned char md[16];
-	unsigned char str[256],*p,*pp;
-	int i;
-
-	i=i2d_X509_NAME(x,NULL);
-	if (i > sizeof(str))
-		p=Malloc(i);
-	else
-		p=str;
 
-	pp=p;
-	i2d_X509_NAME(x,&pp);
-	MD5((unsigned char *)p,i,&(md[0]));
-	if (p != str) Free(p);
+	/* Make sure X509_NAME structure contains valid cached encoding */
+	i2d_X509_NAME(x,NULL);
+	EVP_Digest(x->bytes->data, x->bytes->length, md, NULL, EVP_md5(), NULL);
 
 	ret=(	((unsigned long)md[0]     )|((unsigned long)md[1]<<8L)|
 		((unsigned long)md[2]<<16L)|((unsigned long)md[3]<<24L)
@@ -217,41 +319,91 @@ X509_NAME *x;
 #endif
 
 /* Search a stack of X509 for a match */
-X509 *X509_find_by_issuer_and_serial(sk,name,serial)
-STACK *sk;
-X509_NAME *name;
-ASN1_INTEGER *serial;
+X509 *X509_find_by_issuer_and_serial(STACK_OF(X509) *sk, X509_NAME *name,
+		ASN1_INTEGER *serial)
 	{
 	int i;
 	X509_CINF cinf;
 	X509 x,*x509=NULL;
 
+	if(!sk) return NULL;
+
 	x.cert_info= &cinf;
 	cinf.serialNumber=serial;
 	cinf.issuer=name;
 
-	for (i=0; i<sk_num(sk); i++)
+	for (i=0; i<sk_X509_num(sk); i++)
 		{
-		x509=(X509 *)sk_value(sk,i);
+		x509=sk_X509_value(sk,i);
 		if (X509_issuer_and_serial_cmp(x509,&x) == 0)
 			return(x509);
 		}
 	return(NULL);
 	}
 
-X509 *X509_find_by_subject(sk,name)
-STACK *sk;
-X509_NAME *name;
+X509 *X509_find_by_subject(STACK_OF(X509) *sk, X509_NAME *name)
 	{
 	X509 *x509;
 	int i;
 
-	for (i=0; i<sk_num(sk); i++)
+	for (i=0; i<sk_X509_num(sk); i++)
 		{
-		x509=(X509 *)sk_value(sk,i);
+		x509=sk_X509_value(sk,i);
 		if (X509_NAME_cmp(X509_get_subject_name(x509),name) == 0)
 			return(x509);
 		}
 	return(NULL);
 	}
 
+EVP_PKEY *X509_get_pubkey(X509 *x)
+	{
+	if ((x == NULL) || (x->cert_info == NULL))
+		return(NULL);
+	return(X509_PUBKEY_get(x->cert_info->key));
+	}
+
+ASN1_BIT_STRING *X509_get0_pubkey_bitstr(const X509 *x)
+	{
+	if(!x) return NULL;
+	return x->cert_info->key->public_key;
+	}
+
+int X509_check_private_key(X509 *x, EVP_PKEY *k)
+	{
+	EVP_PKEY *xk=NULL;
+	int ok=0;
+
+	xk=X509_get_pubkey(x);
+	switch (EVP_PKEY_cmp(xk, k))
+		{
+	case 1:
+		ok=1;
+		break;
+	case 0:
+		X509err(X509_F_X509_CHECK_PRIVATE_KEY,X509_R_KEY_VALUES_MISMATCH);
+		break;
+	case -1:
+		X509err(X509_F_X509_CHECK_PRIVATE_KEY,X509_R_KEY_TYPE_MISMATCH);
+		break;
+	case -2:
+#ifndef OPENSSL_NO_EC
+		if (k->type == EVP_PKEY_EC)
+			{
+			X509err(X509_F_X509_CHECK_PRIVATE_KEY, ERR_R_EC_LIB);
+			break;
+			}
+#endif
+#ifndef OPENSSL_NO_DH
+		if (k->type == EVP_PKEY_DH)
+			{
+			/* No idea */
+			X509err(X509_F_X509_CHECK_PRIVATE_KEY,X509_R_CANT_CHECK_DH_KEY);
+			break;
+			}
+#endif
+	        X509err(X509_F_X509_CHECK_PRIVATE_KEY,X509_R_UNKNOWN_KEY_TYPE);
+		}
+
+	EVP_PKEY_free(xk);
+	return(ok);
+	}