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Diffstat (limited to 'crypto/asn1/a_sign.c')
-rw-r--r--crypto/asn1/a_sign.c386
1 files changed, 192 insertions, 194 deletions
diff --git a/crypto/asn1/a_sign.c b/crypto/asn1/a_sign.c
index 7b4a193d6b15..51c6a0c34daf 100644
--- a/crypto/asn1/a_sign.c
+++ b/crypto/asn1/a_sign.c
@@ -5,21 +5,21 @@
* 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:
@@ -34,10 +34,10 @@
* 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
+ * 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
@@ -49,7 +49,7 @@
* 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
@@ -63,7 +63,7 @@
* are met:
*
* 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
+ * 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
@@ -128,206 +128,204 @@
#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;
- unsigned char *p,*buf_in=NULL,*buf_out=NULL;
- int i,inl=0,outl=0,outll=0;
- X509_ALGOR *a;
+ 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;
- EVP_MD_CTX_init(&ctx);
- 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=(unsigned char *)OPENSSL_malloc((unsigned int)inl);
- outll=outl=EVP_PKEY_size(pkey);
- buf_out=(unsigned char *)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;
+ EVP_MD_CTX_init(&ctx);
+ 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 = (unsigned char *)OPENSSL_malloc((unsigned int)inl);
+ outll = outl = EVP_PKEY_size(pkey);
+ buf_out = (unsigned char *)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;
- }
- if (signature->data != NULL) 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_cleanup(&ctx);
- if (buf_in != NULL)
- { OPENSSL_cleanse((char *)buf_in,(unsigned int)inl); OPENSSL_free(buf_in); }
- if (buf_out != NULL)
- { OPENSSL_cleanse((char *)buf_out,outll); OPENSSL_free(buf_out); }
- return(outl);
- }
+ 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;
+ }
+ if (signature->data != NULL)
+ 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_cleanup(&ctx);
+ if (buf_in != NULL) {
+ OPENSSL_cleanse((char *)buf_in, (unsigned int)inl);
+ OPENSSL_free(buf_in);
+ }
+ if (buf_out != NULL) {
+ OPENSSL_cleanse((char *)buf_out, outll);
+ OPENSSL_free(buf_out);
+ }
+ 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_init(&ctx);
- if (!EVP_DigestSignInit(&ctx, NULL, type, NULL, pkey))
- {
- EVP_MD_CTX_cleanup(&ctx);
- return 0;
- }
- return ASN1_item_sign_ctx(it, algor1, algor2, signature, asn, &ctx);
- }
-
+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_init(&ctx);
+ if (!EVP_DigestSignInit(&ctx, NULL, type, NULL, pkey)) {
+ EVP_MD_CTX_cleanup(&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;
+ 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(ctx->pctx);
+ type = EVP_MD_CTX_md(ctx);
+ pkey = EVP_PKEY_CTX_get0_pkey(ctx->pctx);
- if (!type || !pkey)
- {
- ASN1err(ASN1_F_ASN1_ITEM_SIGN_CTX, ASN1_R_CONTEXT_NOT_INITIALISED);
- return 0;
- }
+ 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 (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 (type->flags & EVP_MD_FLAG_PKEY_METHOD_SIGNATURE)
- {
- 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;
- }
- }
- else
- signid = type->pkey_type;
+ if (rv == 2) {
+ if (type->flags & EVP_MD_FLAG_PKEY_METHOD_SIGNATURE) {
+ 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;
+ }
+ } else
+ signid = type->pkey_type;
- if (pkey->ameth->pkey_flags & ASN1_PKEY_SIGPARAM_NULL)
- paramtype = V_ASN1_NULL;
- else
- paramtype = V_ASN1_UNDEF;
+ 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);
+ 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;
- }
+ 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;
- }
- if (signature->data != NULL) 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_cleanup(ctx);
- if (buf_in != NULL)
- { OPENSSL_cleanse((char *)buf_in,(unsigned int)inl); OPENSSL_free(buf_in); }
- if (buf_out != NULL)
- { OPENSSL_cleanse((char *)buf_out,outll); OPENSSL_free(buf_out); }
- return(outl);
- }
+ 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;
+ }
+ if (signature->data != NULL)
+ 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_cleanup(ctx);
+ if (buf_in != NULL) {
+ OPENSSL_cleanse((char *)buf_in, (unsigned int)inl);
+ OPENSSL_free(buf_in);
+ }
+ if (buf_out != NULL) {
+ OPENSSL_cleanse((char *)buf_out, outll);
+ OPENSSL_free(buf_out);
+ }
+ return (outl);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-11 16:18:29 +0000