-#include <sys/types.h>
-#include <sys/stat.h>
-
-#include "cryptlib.h"
-#include "bn.h"
-#include "evp.h"
-#include "x509.h"
-#include "objects.h"
-#include "buffer.h"
-
-int ASN1_sign(int (*i2d)(), X509_ALGOR *algor1, X509_ALGOR *algor2,
- ASN1_BIT_STRING *signature, char *data, EVP_PKEY *pkey,
- const EVP_MD *type)
- {
- EVP_MD_CTX ctx;
- unsigned char *p,*buf_in=NULL,*buf_out=NULL;
- int i,inl=0,outl=0,outll=0;
- X509_ALGOR *a;
-
- for (i=0; i<2; i++)
- {
- if (i == 0)
- a=algor1;
- else
- a=algor2;
- if (a == NULL) continue;
- if ( (a->parameter == NULL) ||
- (a->parameter->type != V_ASN1_NULL))
- {
- ASN1_TYPE_free(a->parameter);
- if ((a->parameter=ASN1_TYPE_new()) == NULL) goto err;
- a->parameter->type=V_ASN1_NULL;
- }
- ASN1_OBJECT_free(a->algorithm);
- a->algorithm=OBJ_nid2obj(type->pkey_type);
- if (a->algorithm == NULL)
- {
- ASN1err(ASN1_F_ASN1_SIGN,ASN1_R_UNKNOWN_OBJECT_TYPE);
- goto err;
- }
- if (a->algorithm->length == 0)
- {
- ASN1err(ASN1_F_ASN1_SIGN,ASN1_R_THE_ASN1_OBJECT_IDENTIFIER_IS_NOT_KNOWN_FOR_THIS_MD);
- goto err;
- }
- }
- inl=i2d(data,NULL);
- buf_in=(unsigned char *)Malloc((unsigned int)inl);
- outll=outl=EVP_PKEY_size(pkey);
- buf_out=(unsigned char *)Malloc((unsigned int)outl);
- if ((buf_in == NULL) || (buf_out == NULL))
- {
- outl=0;
- ASN1err(ASN1_F_ASN1_SIGN,ERR_R_MALLOC_FAILURE);
- goto err;
- }
- p=buf_in;
-
- i2d(data,&p);
- EVP_SignInit(&ctx,type);
- EVP_SignUpdate(&ctx,(unsigned char *)buf_in,inl);
- if (!EVP_SignFinal(&ctx,(unsigned char *)buf_out,
- (unsigned int *)&outl,pkey))
- {
- outl=0;
- ASN1err(ASN1_F_ASN1_SIGN,ERR_R_EVP_LIB);
- goto err;
- }
- if (signature->data != NULL) Free((char *)signature->data);
- signature->data=buf_out;
- buf_out=NULL;
- signature->length=outl;
- /* In the interests of compatability, I'll make sure that
- * the bit string has a 'not-used bits' value of 0
- */
- signature->flags&= ~(ASN1_STRING_FLAG_BITS_LEFT|0x07);
- signature->flags|=ASN1_STRING_FLAG_BITS_LEFT;
-err:
- memset(&ctx,0,sizeof(ctx));
- if (buf_in != NULL)
- { memset((char *)buf_in,0,(unsigned int)inl); Free((char *)buf_in); }
- if (buf_out != NULL)
- { memset((char *)buf_out,0,outll); Free((char *)buf_out); }
- return(outl);
- }
+
+#include "internal/cryptlib.h"
+
+#ifndef NO_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+
+#include <openssl/bn.h>
+#include <openssl/evp.h>
+#include <openssl/x509.h>
+#include <openssl/objects.h>
+#include <openssl/buffer.h>
+#include "internal/asn1_int.h"
+#include "internal/evp_int.h"
+
+#ifndef NO_ASN1_OLD
+
+int ASN1_sign(i2d_of_void *i2d, X509_ALGOR *algor1, X509_ALGOR *algor2,
+ ASN1_BIT_STRING *signature, char *data, EVP_PKEY *pkey,
+ const EVP_MD *type)
+{
+ EVP_MD_CTX *ctx = EVP_MD_CTX_create();
+ unsigned char *p, *buf_in = NULL, *buf_out = NULL;
+ int i, inl = 0, outl = 0, outll = 0;
+ X509_ALGOR *a;
+
+ if (ctx == NULL) {
+ ASN1err(ASN1_F_ASN1_SIGN, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ for (i = 0; i < 2; i++) {
+ if (i == 0)
+ a = algor1;
+ else
+ a = algor2;
+ if (a == NULL)
+ continue;
+ if (type->pkey_type == NID_dsaWithSHA1) {
+ /*
+ * special case: RFC 2459 tells us to omit 'parameters' with
+ * id-dsa-with-sha1
+ */
+ ASN1_TYPE_free(a->parameter);
+ a->parameter = NULL;
+ } else if ((a->parameter == NULL) ||
+ (a->parameter->type != V_ASN1_NULL)) {
+ ASN1_TYPE_free(a->parameter);
+ if ((a->parameter = ASN1_TYPE_new()) == NULL)
+ goto err;
+ a->parameter->type = V_ASN1_NULL;
+ }
+ ASN1_OBJECT_free(a->algorithm);
+ a->algorithm = OBJ_nid2obj(type->pkey_type);
+ if (a->algorithm == NULL) {
+ ASN1err(ASN1_F_ASN1_SIGN, ASN1_R_UNKNOWN_OBJECT_TYPE);
+ goto err;
+ }
+ if (a->algorithm->length == 0) {
+ ASN1err(ASN1_F_ASN1_SIGN,
+ ASN1_R_THE_ASN1_OBJECT_IDENTIFIER_IS_NOT_KNOWN_FOR_THIS_MD);
+ goto err;
+ }
+ }
+ inl = i2d(data, NULL);
+ buf_in = OPENSSL_malloc((unsigned int)inl);
+ outll = outl = EVP_PKEY_size(pkey);
+ buf_out = OPENSSL_malloc((unsigned int)outl);
+ if ((buf_in == NULL) || (buf_out == NULL)) {
+ outl = 0;
+ ASN1err(ASN1_F_ASN1_SIGN, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ p = buf_in;
+
+ i2d(data, &p);
+ if (!EVP_SignInit_ex(ctx, type, NULL)
+ || !EVP_SignUpdate(ctx, (unsigned char *)buf_in, inl)
+ || !EVP_SignFinal(ctx, (unsigned char *)buf_out,
+ (unsigned int *)&outl, pkey)) {
+ outl = 0;
+ ASN1err(ASN1_F_ASN1_SIGN, ERR_R_EVP_LIB);
+ goto err;
+ }
+ OPENSSL_free(signature->data);
+ signature->data = buf_out;
+ buf_out = NULL;
+ signature->length = outl;
+ /*
+ * In the interests of compatibility, I'll make sure that the bit string
+ * has a 'not-used bits' value of 0
+ */
+ signature->flags &= ~(ASN1_STRING_FLAG_BITS_LEFT | 0x07);
+ signature->flags |= ASN1_STRING_FLAG_BITS_LEFT;
+ err:
+ EVP_MD_CTX_destroy(ctx);
+ OPENSSL_clear_free((char *)buf_in, (unsigned int)inl);
+ OPENSSL_clear_free((char *)buf_out, outll);
+ return (outl);
+}
+
+#endif
+
+int ASN1_item_sign(const ASN1_ITEM *it, X509_ALGOR *algor1,
+ X509_ALGOR *algor2, ASN1_BIT_STRING *signature, void *asn,
+ EVP_PKEY *pkey, const EVP_MD *type)
+{
+ EVP_MD_CTX *ctx = EVP_MD_CTX_create();
+
+ if (ctx == NULL) {
+ ASN1err(ASN1_F_ASN1_ITEM_SIGN, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+ if (!EVP_DigestSignInit(ctx, NULL, type, NULL, pkey)) {
+ EVP_MD_CTX_destroy(ctx);
+ return 0;
+ }
+ return ASN1_item_sign_ctx(it, algor1, algor2, signature, asn, ctx);
+}
+
+int ASN1_item_sign_ctx(const ASN1_ITEM *it,
+ X509_ALGOR *algor1, X509_ALGOR *algor2,
+ ASN1_BIT_STRING *signature, void *asn, EVP_MD_CTX *ctx)
+{
+ const EVP_MD *type;
+ EVP_PKEY *pkey;
+ unsigned char *buf_in = NULL, *buf_out = NULL;
+ size_t inl = 0, outl = 0, outll = 0;
+ int signid, paramtype;
+ int rv;
+
+ type = EVP_MD_CTX_md(ctx);
+ pkey = EVP_PKEY_CTX_get0_pkey(EVP_MD_CTX_pkey_ctx(ctx));
+
+ if (!type || !pkey) {
+ ASN1err(ASN1_F_ASN1_ITEM_SIGN_CTX, ASN1_R_CONTEXT_NOT_INITIALISED);
+ return 0;
+ }
+
+ if (pkey->ameth->item_sign) {
+ rv = pkey->ameth->item_sign(ctx, it, asn, algor1, algor2, signature);
+ if (rv == 1)
+ outl = signature->length;
+ /*-
+ * Return value meanings:
+ * <=0: error.
+ * 1: method does everything.
+ * 2: carry on as normal.
+ * 3: ASN1 method sets algorithm identifiers: just sign.
+ */
+ if (rv <= 0)
+ ASN1err(ASN1_F_ASN1_ITEM_SIGN_CTX, ERR_R_EVP_LIB);
+ if (rv <= 1)
+ goto err;
+ } else
+ rv = 2;
+
+ if (rv == 2) {
+ if (!pkey->ameth ||
+ !OBJ_find_sigid_by_algs(&signid,
+ EVP_MD_nid(type),
+ pkey->ameth->pkey_id)) {
+ ASN1err(ASN1_F_ASN1_ITEM_SIGN_CTX,
+ ASN1_R_DIGEST_AND_KEY_TYPE_NOT_SUPPORTED);
+ return 0;
+ }
+
+ if (pkey->ameth->pkey_flags & ASN1_PKEY_SIGPARAM_NULL)
+ paramtype = V_ASN1_NULL;
+ else
+ paramtype = V_ASN1_UNDEF;
+
+ if (algor1)
+ X509_ALGOR_set0(algor1, OBJ_nid2obj(signid), paramtype, NULL);
+ if (algor2)
+ X509_ALGOR_set0(algor2, OBJ_nid2obj(signid), paramtype, NULL);
+
+ }
+
+ inl = ASN1_item_i2d(asn, &buf_in, it);
+ outll = outl = EVP_PKEY_size(pkey);
+ buf_out = OPENSSL_malloc((unsigned int)outl);
+ if ((buf_in == NULL) || (buf_out == NULL)) {
+ outl = 0;
+ ASN1err(ASN1_F_ASN1_ITEM_SIGN_CTX, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+ if (!EVP_DigestSignUpdate(ctx, buf_in, inl)
+ || !EVP_DigestSignFinal(ctx, buf_out, &outl)) {
+ outl = 0;
+ ASN1err(ASN1_F_ASN1_ITEM_SIGN_CTX, ERR_R_EVP_LIB);
+ goto err;
+ }
+ OPENSSL_free(signature->data);
+ signature->data = buf_out;
+ buf_out = NULL;
+ signature->length = outl;
+ /*
+ * In the interests of compatibility, I'll make sure that the bit string
+ * has a 'not-used bits' value of 0
+ */
+ signature->flags &= ~(ASN1_STRING_FLAG_BITS_LEFT | 0x07);
+ signature->flags |= ASN1_STRING_FLAG_BITS_LEFT;
+ err:
+ EVP_MD_CTX_destroy(ctx);
+ OPENSSL_clear_free((char *)buf_in, (unsigned int)inl);
+ OPENSSL_clear_free((char *)buf_out, outll);
+ return (outl);
+}
projects / openssl.git / blobdiff