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authorParménides GV <parmegv@sdf.org>2014-06-13 12:13:04 +0200
committerParménides GV <parmegv@sdf.org>2014-06-13 12:13:04 +0200
commit3a71bc9e4aa4296f460e2e3c55de74c9852477ad (patch)
treef816597a7c4322137f0657e7aa2bf392404d1870 /app/openssl/crypto/asn1/a_sign.c
parentcfe67bfd8260253ce9288225b9e26f666d27133f (diff)
parent36247e71df88fa13c6c5a887de3b11d9a883615f (diff)
Merge branch 'feature/establish-an-upstream-relationship-with-ics-openvpn-codebase-#5381' into develop
Diffstat (limited to 'app/openssl/crypto/asn1/a_sign.c')
-rw-r--r--app/openssl/crypto/asn1/a_sign.c111
1 files changed, 73 insertions, 38 deletions
diff --git a/app/openssl/crypto/asn1/a_sign.c b/app/openssl/crypto/asn1/a_sign.c
index ff63bfc7..7b4a193d 100644
--- a/app/openssl/crypto/asn1/a_sign.c
+++ b/app/openssl/crypto/asn1/a_sign.c
@@ -184,9 +184,9 @@ int ASN1_sign(i2d_of_void *i2d, X509_ALGOR *algor1, X509_ALGOR *algor2,
p=buf_in;
i2d(data,&p);
- EVP_SignInit_ex(&ctx,type, NULL);
- EVP_SignUpdate(&ctx,(unsigned char *)buf_in,inl);
- if (!EVP_SignFinal(&ctx,(unsigned char *)buf_out,
+ 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;
@@ -218,65 +218,100 @@ int ASN1_item_sign(const ASN1_ITEM *it, X509_ALGOR *algor1, X509_ALGOR *algor2,
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;
- int inl=0,outl=0,outll=0;
+ 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);
- if (type == NULL)
+ if (!type || !pkey)
{
- int def_nid;
- if (EVP_PKEY_get_default_digest_nid(pkey, &def_nid) > 0)
- type = EVP_get_digestbynid(def_nid);
+ ASN1err(ASN1_F_ASN1_ITEM_SIGN_CTX, ASN1_R_CONTEXT_NOT_INITIALISED);
+ return 0;
}
- if (type == NULL)
+ if (pkey->ameth->item_sign)
{
- ASN1err(ASN1_F_ASN1_ITEM_SIGN, ASN1_R_NO_DEFAULT_DIGEST);
- return 0;
+ 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 (type->flags & EVP_MD_FLAG_PKEY_METHOD_SIGNATURE)
+ if (rv == 2)
{
- if (!pkey->ameth ||
- !OBJ_find_sigid_by_algs(&signid, EVP_MD_nid(type),
- pkey->ameth->pkey_id))
+ if (type->flags & EVP_MD_FLAG_PKEY_METHOD_SIGNATURE)
{
- ASN1err(ASN1_F_ASN1_ITEM_SIGN,
- ASN1_R_DIGEST_AND_KEY_TYPE_NOT_SUPPORTED);
- return 0;
+ 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;
+ 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);
+
+ }
- EVP_MD_CTX_init(&ctx);
inl=ASN1_item_i2d(asn,&buf_in, it);
outll=outl=EVP_PKEY_size(pkey);
- buf_out=(unsigned char *)OPENSSL_malloc((unsigned int)outl);
+ buf_out=OPENSSL_malloc((unsigned int)outl);
if ((buf_in == NULL) || (buf_out == NULL))
{
outl=0;
- ASN1err(ASN1_F_ASN1_ITEM_SIGN,ERR_R_MALLOC_FAILURE);
+ ASN1err(ASN1_F_ASN1_ITEM_SIGN_CTX,ERR_R_MALLOC_FAILURE);
goto err;
}
- EVP_SignInit_ex(&ctx,type, NULL);
- EVP_SignUpdate(&ctx,(unsigned char *)buf_in,inl);
- if (!EVP_SignFinal(&ctx,(unsigned char *)buf_out,
- (unsigned int *)&outl,pkey))
+ if (!EVP_DigestSignUpdate(ctx, buf_in, inl)
+ || !EVP_DigestSignFinal(ctx, buf_out, &outl))
{
outl=0;
- ASN1err(ASN1_F_ASN1_ITEM_SIGN,ERR_R_EVP_LIB);
+ ASN1err(ASN1_F_ASN1_ITEM_SIGN_CTX,ERR_R_EVP_LIB);
goto err;
}
if (signature->data != NULL) OPENSSL_free(signature->data);
@@ -289,7 +324,7 @@ int ASN1_item_sign(const ASN1_ITEM *it, X509_ALGOR *algor1, X509_ALGOR *algor2,
signature->flags&= ~(ASN1_STRING_FLAG_BITS_LEFT|0x07);
signature->flags|=ASN1_STRING_FLAG_BITS_LEFT;
err:
- EVP_MD_CTX_cleanup(&ctx);
+ 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)