#include <openssl/objects.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
+#include <openssl/err.h>
static int add_attribute(STACK_OF(X509_ATTRIBUTE) **sk, int nid, int atrtype,
void *value);
static ASN1_TYPE *get_attribute(STACK_OF(X509_ATTRIBUTE) *sk, int nid);
+static int PKCS7_type_is_other(PKCS7* p7)
+ {
+ int isOther=1;
+
+ int nid=OBJ_obj2nid(p7->type);
+
+ switch( nid )
+ {
+ case NID_pkcs7_data:
+ case NID_pkcs7_signed:
+ case NID_pkcs7_enveloped:
+ case NID_pkcs7_signedAndEnveloped:
+ case NID_pkcs7_digest:
+ case NID_pkcs7_encrypted:
+ isOther=0;
+ break;
+ default:
+ isOther=1;
+ }
+
+ return isOther;
+
+ }
+
+static ASN1_OCTET_STRING *PKCS7_get_octet_string(PKCS7 *p7)
+ {
+ if ( PKCS7_type_is_data(p7))
+ return p7->d.data;
+ if ( PKCS7_type_is_other(p7) && p7->d.other
+ && (p7->d.other->type == V_ASN1_OCTET_STRING))
+ return p7->d.other->value.octet_string;
+ return NULL;
+ }
+
+static int PKCS7_bio_add_digest(BIO **pbio, X509_ALGOR *alg)
+ {
+ BIO *btmp;
+ const EVP_MD *md;
+ if ((btmp=BIO_new(BIO_f_md())) == NULL)
+ {
+ PKCS7err(PKCS7_F_PKCS7_BIO_ADD_DIGEST,ERR_R_BIO_LIB);
+ goto err;
+ }
+
+ md=EVP_get_digestbyobj(alg->algorithm);
+ if (md == NULL)
+ {
+ PKCS7err(PKCS7_F_PKCS7_BIO_ADD_DIGEST,PKCS7_R_UNKNOWN_DIGEST_TYPE);
+ goto err;
+ }
+
+ BIO_set_md(btmp,md);
+ if (*pbio == NULL)
+ *pbio=btmp;
+ else if (!BIO_push(*pbio,btmp))
+ {
+ PKCS7err(PKCS7_F_PKCS7_BIO_ADD_DIGEST,ERR_R_BIO_LIB);
+ goto err;
+ }
+ btmp=NULL;
+
+ return 1;
+
+ err:
+ if (btmp)
+ BIO_free(btmp);
+ return 0;
+
+ }
+
+static int pkcs7_encode_rinfo(PKCS7_RECIP_INFO *ri,
+ unsigned char *key, int keylen)
+ {
+ EVP_PKEY_CTX *pctx = NULL;
+ EVP_PKEY *pkey = NULL;
+ unsigned char *ek = NULL;
+ int ret = 0;
+ int eklen;
+
+ pkey = X509_get_pubkey(ri->cert);
+
+ if (!pkey)
+ return 0;
+
+ pctx = EVP_PKEY_CTX_new(pkey, NULL);
+ if (!pctx)
+ return 0;
+
+ if (EVP_PKEY_encrypt_init(pctx) <= 0)
+ goto err;
+
+ if (EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_ENCRYPT,
+ EVP_PKEY_CTRL_PKCS7_ENCRYPT, 0, ri) <= 0)
+ {
+ PKCS7err(PKCS7_F_PKCS7_ENCODE_RINFO, PKCS7_R_CTRL_ERROR);
+ goto err;
+ }
+
+ if (EVP_PKEY_encrypt(pctx, NULL, &eklen, key, keylen) <= 0)
+ goto err;
+
+ ek = OPENSSL_malloc(eklen);
+
+ if (ek == NULL)
+ {
+ PKCS7err(PKCS7_F_PKCS7_ENCODE_RINFO, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+ if (EVP_PKEY_encrypt(pctx, ek, &eklen, key, keylen) <= 0)
+ goto err;
+
+ ASN1_STRING_set0(ri->enc_key, ek, eklen);
+ ek = NULL;
+
+ ret = 1;
+
+ err:
+ if (pkey)
+ EVP_PKEY_free(pkey);
+ if (pctx)
+ EVP_PKEY_CTX_free(pctx);
+ if (ek)
+ OPENSSL_free(ek);
+ return ret;
+
+ }
+
+
+int pkcs7_decrypt_rinfo(unsigned char **pek, int *peklen,
+ PKCS7_RECIP_INFO *ri, EVP_PKEY *pkey)
+ {
+ EVP_PKEY_CTX *pctx = NULL;
+ unsigned char *ek = NULL;
+ int eklen;
+
+ int ret = 0;
+
+ pctx = EVP_PKEY_CTX_new(pkey, NULL);
+ if (!pctx)
+ return 0;
+
+ if (EVP_PKEY_decrypt_init(pctx) <= 0)
+ goto err;
+
+ if (EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_DECRYPT,
+ EVP_PKEY_CTRL_PKCS7_DECRYPT, 0, ri) <= 0)
+ {
+ PKCS7err(PKCS7_F_PKCS7_DECRYPT_RINFO, PKCS7_R_CTRL_ERROR);
+ goto err;
+ }
+
+ if (EVP_PKEY_decrypt(pctx, NULL, &eklen,
+ ri->enc_key->data, ri->enc_key->length) <= 0)
+ goto err;
+
+ ek = OPENSSL_malloc(eklen);
+
+ if (ek == NULL)
+ {
+ PKCS7err(PKCS7_F_PKCS7_DECRYPT_RINFO, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+ if (EVP_PKEY_decrypt(pctx, ek, &eklen,
+ ri->enc_key->data, ri->enc_key->length) <= 0)
+ {
+ PKCS7err(PKCS7_F_PKCS7_DECRYPT_RINFO, ERR_R_EVP_LIB);
+ goto err;
+ }
+
+ ret = 1;
+
+ *pek = ek;
+ *peklen = eklen;
+
+ err:
+ if (pctx)
+ EVP_PKEY_CTX_free(pctx);
+ if (!ret && ek)
+ OPENSSL_free(ek);
+
+ return ret;
+ }
+
BIO *PKCS7_dataInit(PKCS7 *p7, BIO *bio)
{
- int i,j;
+ int i;
BIO *out=NULL,*btmp=NULL;
- X509_ALGOR *xa;
- const EVP_MD *evp_md;
+ X509_ALGOR *xa = NULL;
const EVP_CIPHER *evp_cipher=NULL;
STACK_OF(X509_ALGOR) *md_sk=NULL;
STACK_OF(PKCS7_RECIP_INFO) *rsk=NULL;
X509_ALGOR *xalg=NULL;
PKCS7_RECIP_INFO *ri=NULL;
- EVP_PKEY *pkey;
+ ASN1_OCTET_STRING *os=NULL;
i=OBJ_obj2nid(p7->type);
p7->state=PKCS7_S_HEADER;
{
case NID_pkcs7_signed:
md_sk=p7->d.sign->md_algs;
+ os = PKCS7_get_octet_string(p7->d.sign->contents);
break;
case NID_pkcs7_signedAndEnveloped:
rsk=p7->d.signed_and_enveloped->recipientinfo;
goto err;
}
break;
+ case NID_pkcs7_digest:
+ xa = p7->d.digest->md;
+ os = PKCS7_get_octet_string(p7->d.digest->contents);
+ break;
default:
PKCS7err(PKCS7_F_PKCS7_DATAINIT,PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
goto err;
}
- if (md_sk != NULL)
- {
- for (i=0; i<sk_X509_ALGOR_num(md_sk); i++)
- {
- xa=sk_X509_ALGOR_value(md_sk,i);
- if ((btmp=BIO_new(BIO_f_md())) == NULL)
- {
- PKCS7err(PKCS7_F_PKCS7_DATAINIT,ERR_R_BIO_LIB);
- goto err;
- }
-
- j=OBJ_obj2nid(xa->algorithm);
- evp_md=EVP_get_digestbyname(OBJ_nid2sn(j));
- if (evp_md == NULL)
- {
- PKCS7err(PKCS7_F_PKCS7_DATAINIT,PKCS7_R_UNKNOWN_DIGEST_TYPE);
- goto err;
- }
+ for (i=0; i<sk_X509_ALGOR_num(md_sk); i++)
+ if (!PKCS7_bio_add_digest(&out, sk_X509_ALGOR_value(md_sk, i)))
+ goto err;
- BIO_set_md(btmp,evp_md);
- if (out == NULL)
- out=btmp;
- else
- BIO_push(out,btmp);
- btmp=NULL;
- }
- }
+ if (xa && !PKCS7_bio_add_digest(&out, xa))
+ goto err;
if (evp_cipher != NULL)
{
unsigned char key[EVP_MAX_KEY_LENGTH];
unsigned char iv[EVP_MAX_IV_LENGTH];
int keylen,ivlen;
- int jj,max;
- unsigned char *tmp;
EVP_CIPHER_CTX *ctx;
if ((btmp=BIO_new(BIO_f_cipher())) == NULL)
BIO_get_cipher_ctx(btmp, &ctx);
keylen=EVP_CIPHER_key_length(evp_cipher);
ivlen=EVP_CIPHER_iv_length(evp_cipher);
- if (RAND_bytes(key,keylen) <= 0)
- goto err;
xalg->algorithm = OBJ_nid2obj(EVP_CIPHER_type(evp_cipher));
if (ivlen > 0) RAND_pseudo_bytes(iv,ivlen);
- EVP_CipherInit(ctx, evp_cipher, key, iv, 1);
+ if (EVP_CipherInit_ex(ctx, evp_cipher, NULL, NULL, NULL, 1)<=0)
+ goto err;
+ if (EVP_CIPHER_CTX_rand_key(ctx, key) <= 0)
+ goto err;
+ if (EVP_CipherInit_ex(ctx, NULL, NULL, key, iv, 1) <= 0)
+ goto err;
if (ivlen > 0) {
if (xalg->parameter == NULL)
}
/* Lets do the pub key stuff :-) */
- max=0;
- for (i=0; i<sk_PKCS7_RECIP_INFO_num(rsk); i++)
- {
- ri=sk_PKCS7_RECIP_INFO_value(rsk,i);
- if (ri->cert == NULL)
- {
- PKCS7err(PKCS7_F_PKCS7_DATAINIT,PKCS7_R_MISSING_CERIPEND_INFO);
- goto err;
- }
- pkey=X509_get_pubkey(ri->cert);
- jj=EVP_PKEY_size(pkey);
- EVP_PKEY_free(pkey);
- if (max < jj) max=jj;
- }
- if ((tmp=(unsigned char *)OPENSSL_malloc(max)) == NULL)
- {
- PKCS7err(PKCS7_F_PKCS7_DATAINIT,ERR_R_MALLOC_FAILURE);
- goto err;
- }
for (i=0; i<sk_PKCS7_RECIP_INFO_num(rsk); i++)
{
ri=sk_PKCS7_RECIP_INFO_value(rsk,i);
- pkey=X509_get_pubkey(ri->cert);
- jj=EVP_PKEY_encrypt(tmp,key,keylen,pkey);
- EVP_PKEY_free(pkey);
- if (jj <= 0)
- {
- PKCS7err(PKCS7_F_PKCS7_DATAINIT,ERR_R_EVP_LIB);
- OPENSSL_free(tmp);
+ if (pkcs7_encode_rinfo(ri, key, keylen) <= 0)
goto err;
- }
- M_ASN1_OCTET_STRING_set(ri->enc_key,tmp,jj);
}
- OPENSSL_free(tmp);
- memset(key, 0, keylen);
+ OPENSSL_cleanse(key, keylen);
if (out == NULL)
out=btmp;
btmp=NULL;
}
- if (bio == NULL) {
+ if (bio == NULL)
+ {
if (PKCS7_is_detached(p7))
bio=BIO_new(BIO_s_null());
- else {
- if (PKCS7_type_is_signed(p7) &&
- PKCS7_type_is_data(p7->d.sign->contents)) {
- ASN1_OCTET_STRING *os;
- os=p7->d.sign->contents->d.data;
- if (os->length > 0) bio =
- BIO_new_mem_buf(os->data, os->length);
- }
- if(bio == NULL) {
- bio=BIO_new(BIO_s_mem());
- BIO_set_mem_eof_return(bio,0);
+ else if (os && os->length > 0)
+ bio = BIO_new_mem_buf(os->data, os->length);
+ if(bio == NULL)
+ {
+ bio=BIO_new(BIO_s_mem());
+ BIO_set_mem_eof_return(bio,0);
}
}
- }
BIO_push(out,bio);
bio=NULL;
if (0)
return(out);
}
+static int pkcs7_cmp_ri(PKCS7_RECIP_INFO *ri, X509 *pcert)
+ {
+ int ret;
+ ret = X509_NAME_cmp(ri->issuer_and_serial->issuer,
+ pcert->cert_info->issuer);
+ if (ret)
+ return ret;
+ return M_ASN1_INTEGER_cmp(pcert->cert_info->serialNumber,
+ ri->issuer_and_serial->serial);
+ }
+
/* int */
BIO *PKCS7_dataDecode(PKCS7 *p7, EVP_PKEY *pkey, BIO *in_bio, X509 *pcert)
{
int i,j;
BIO *out=NULL,*btmp=NULL,*etmp=NULL,*bio=NULL;
- unsigned char *tmp=NULL;
X509_ALGOR *xa;
ASN1_OCTET_STRING *data_body=NULL;
const EVP_MD *evp_md;
switch (i)
{
case NID_pkcs7_signed:
- data_body=p7->d.sign->contents->d.data;
+ data_body=PKCS7_get_octet_string(p7->d.sign->contents);
md_sk=p7->d.sign->md_algs;
break;
case NID_pkcs7_signedAndEnveloped:
md_sk=p7->d.signed_and_enveloped->md_algs;
data_body=p7->d.signed_and_enveloped->enc_data->enc_data;
enc_alg=p7->d.signed_and_enveloped->enc_data->algorithm;
- evp_cipher=EVP_get_cipherbyname(OBJ_nid2sn(OBJ_obj2nid(enc_alg->algorithm)));
+ evp_cipher=EVP_get_cipherbyobj(enc_alg->algorithm);
if (evp_cipher == NULL)
{
PKCS7err(PKCS7_F_PKCS7_DATADECODE,PKCS7_R_UNSUPPORTED_CIPHER_TYPE);
rsk=p7->d.enveloped->recipientinfo;
enc_alg=p7->d.enveloped->enc_data->algorithm;
data_body=p7->d.enveloped->enc_data->enc_data;
- evp_cipher=EVP_get_cipherbyname(OBJ_nid2sn(OBJ_obj2nid(enc_alg->algorithm)));
+ evp_cipher=EVP_get_cipherbyobj(enc_alg->algorithm);
if (evp_cipher == NULL)
{
PKCS7err(PKCS7_F_PKCS7_DATADECODE,PKCS7_R_UNSUPPORTED_CIPHER_TYPE);
}
j=OBJ_obj2nid(xa->algorithm);
- evp_md=EVP_get_digestbyname(OBJ_nid2sn(j));
+ evp_md=EVP_get_digestbynid(j);
if (evp_md == NULL)
{
PKCS7err(PKCS7_F_PKCS7_DATADECODE,PKCS7_R_UNKNOWN_DIGEST_TYPE);
int max;
X509_OBJECT ret;
#endif
- int jj;
+ unsigned char *ek = NULL;
+ int eklen;
if ((etmp=BIO_new(BIO_f_cipher())) == NULL)
{
* (if any)
*/
- for (i=0; i<sk_PKCS7_RECIP_INFO_num(rsk); i++) {
- ri=sk_PKCS7_RECIP_INFO_value(rsk,i);
- if(!X509_NAME_cmp(ri->issuer_and_serial->issuer,
- pcert->cert_info->issuer) &&
- !M_ASN1_INTEGER_cmp(pcert->cert_info->serialNumber,
- ri->issuer_and_serial->serial)) break;
- ri=NULL;
- }
- if (ri == NULL) {
- PKCS7err(PKCS7_F_PKCS7_DATADECODE,
- PKCS7_R_NO_RECIPIENT_MATCHES_CERTIFICATE);
- return(NULL);
- }
-
- jj=EVP_PKEY_size(pkey);
- tmp=(unsigned char *)OPENSSL_malloc(jj+10);
- if (tmp == NULL)
+ if (pcert)
{
- PKCS7err(PKCS7_F_PKCS7_DATADECODE,ERR_R_MALLOC_FAILURE);
- goto err;
+ for (i=0; i<sk_PKCS7_RECIP_INFO_num(rsk); i++)
+ {
+ ri=sk_PKCS7_RECIP_INFO_value(rsk,i);
+ if (!pkcs7_cmp_ri(ri, pcert))
+ break;
+ ri=NULL;
+ }
+ if (ri == NULL)
+ {
+ PKCS7err(PKCS7_F_PKCS7_DATADECODE,
+ PKCS7_R_NO_RECIPIENT_MATCHES_CERTIFICATE);
+ goto err;
+ }
}
- jj=EVP_PKEY_decrypt(tmp, M_ASN1_STRING_data(ri->enc_key),
- M_ASN1_STRING_length(ri->enc_key), pkey);
- if (jj <= 0)
+ /* If we haven't got a certificate try each ri in turn */
+
+ if (pcert == NULL)
{
- PKCS7err(PKCS7_F_PKCS7_DATADECODE,ERR_R_EVP_LIB);
- goto err;
+ for (i=0; i<sk_PKCS7_RECIP_INFO_num(rsk); i++)
+ {
+ ri=sk_PKCS7_RECIP_INFO_value(rsk,i);
+ if (pkcs7_decrypt_rinfo(&ek, &eklen,
+ ri, pkey) > 0)
+ break;
+ ERR_clear_error();
+ ri = NULL;
+ }
+ if (ri == NULL)
+ {
+ PKCS7err(PKCS7_F_PKCS7_DATADECODE,
+ PKCS7_R_NO_RECIPIENT_MATCHES_KEY);
+ goto err;
+ }
+ }
+ else
+ {
+ if (pkcs7_decrypt_rinfo(&ek, &eklen, ri, pkey) <= 0)
+ goto err;
}
evp_ctx=NULL;
BIO_get_cipher_ctx(etmp,&evp_ctx);
- EVP_CipherInit(evp_ctx,evp_cipher,NULL,NULL,0);
+ if (EVP_CipherInit_ex(evp_ctx,evp_cipher,NULL,NULL,NULL,0) <= 0)
+ goto err;
if (EVP_CIPHER_asn1_to_param(evp_ctx,enc_alg->parameter) < 0)
- return(NULL);
+ goto err;
- if (jj != EVP_CIPHER_CTX_key_length(evp_ctx)) {
+ if (eklen != EVP_CIPHER_CTX_key_length(evp_ctx)) {
/* Some S/MIME clients don't use the same key
* and effective key length. The key length is
* determined by the size of the decrypted RSA key.
*/
- if(!EVP_CIPHER_CTX_set_key_length(evp_ctx, jj))
+ if(!EVP_CIPHER_CTX_set_key_length(evp_ctx, eklen))
{
PKCS7err(PKCS7_F_PKCS7_DATADECODE,
PKCS7_R_DECRYPTED_KEY_IS_WRONG_LENGTH);
goto err;
}
}
- EVP_CipherInit(evp_ctx,NULL,tmp,NULL,0);
+ if (EVP_CipherInit_ex(evp_ctx,NULL,NULL,ek,NULL,0) <= 0)
+ goto err;
- memset(tmp,0,jj);
+ if (ek)
+ {
+ OPENSSL_cleanse(ek,eklen);
+ OPENSSL_free(ek);
+ }
if (out == NULL)
out=etmp;
if (bio != NULL) BIO_free_all(bio);
out=NULL;
}
- if (tmp != NULL)
- OPENSSL_free(tmp);
return(out);
}
+static BIO *PKCS7_find_digest(EVP_MD_CTX **pmd, BIO *bio, int nid)
+ {
+ for (;;)
+ {
+ bio=BIO_find_type(bio,BIO_TYPE_MD);
+ if (bio == NULL)
+ {
+ PKCS7err(PKCS7_F_PKCS7_FIND_DIGEST,PKCS7_R_UNABLE_TO_FIND_MESSAGE_DIGEST);
+ return NULL;
+ }
+ BIO_get_md_ctx(bio,pmd);
+ if (*pmd == NULL)
+ {
+ PKCS7err(PKCS7_F_PKCS7_FIND_DIGEST,ERR_R_INTERNAL_ERROR);
+ return NULL;
+ }
+ if (EVP_MD_CTX_type(*pmd) == nid)
+ return bio;
+ bio=BIO_next(bio);
+ }
+ return NULL;
+ }
+
int PKCS7_dataFinal(PKCS7 *p7, BIO *bio)
{
int ret=0;
STACK_OF(PKCS7_SIGNER_INFO) *si_sk=NULL;
ASN1_OCTET_STRING *os=NULL;
+ EVP_MD_CTX_init(&ctx_tmp);
i=OBJ_obj2nid(p7->type);
p7->state=PKCS7_S_HEADER;
case NID_pkcs7_signedAndEnveloped:
/* XXXXXXXXXXXXXXXX */
si_sk=p7->d.signed_and_enveloped->signer_info;
- os=M_ASN1_OCTET_STRING_new();
+ if (!(os=M_ASN1_OCTET_STRING_new()))
+ {
+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL,ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
p7->d.signed_and_enveloped->enc_data->enc_data=os;
break;
case NID_pkcs7_enveloped:
/* XXXXXXXXXXXXXXXX */
- os=M_ASN1_OCTET_STRING_new();
+ if (!(os=M_ASN1_OCTET_STRING_new()))
+ {
+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL,ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
p7->d.enveloped->enc_data->enc_data=os;
break;
case NID_pkcs7_signed:
si_sk=p7->d.sign->signer_info;
- os=p7->d.sign->contents->d.data;
+ os=PKCS7_get_octet_string(p7->d.sign->contents);
/* If detached data then the content is excluded */
- if(p7->detached) {
+ if(PKCS7_type_is_data(p7->d.sign->contents) && p7->detached) {
M_ASN1_OCTET_STRING_free(os);
p7->d.sign->contents->d.data = NULL;
}
break;
+
+ case NID_pkcs7_digest:
+ os=PKCS7_get_octet_string(p7->d.digest->contents);
+ /* If detached data then the content is excluded */
+ if(PKCS7_type_is_data(p7->d.digest->contents) && p7->detached)
+ {
+ M_ASN1_OCTET_STRING_free(os);
+ p7->d.digest->contents->d.data = NULL;
+ }
+ break;
+
}
if (si_sk != NULL)
{
if ((buf=BUF_MEM_new()) == NULL)
{
- PKCS7err(PKCS7_F_PKCS7_DATASIGN,ERR_R_BIO_LIB);
+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL,ERR_R_BIO_LIB);
goto err;
}
for (i=0; i<sk_PKCS7_SIGNER_INFO_num(si_sk); i++)
j=OBJ_obj2nid(si->digest_alg->algorithm);
btmp=bio;
- for (;;)
- {
- if ((btmp=BIO_find_type(btmp,BIO_TYPE_MD))
- == NULL)
- {
- PKCS7err(PKCS7_F_PKCS7_DATASIGN,PKCS7_R_UNABLE_TO_FIND_MESSAGE_DIGEST);
- goto err;
- }
- BIO_get_md_ctx(btmp,&mdc);
- if (mdc == NULL)
- {
- PKCS7err(PKCS7_F_PKCS7_DATASIGN,PKCS7_R_INTERNAL_ERROR);
- goto err;
- }
- if (EVP_MD_CTX_type(mdc) == j)
- break;
- else
- btmp=BIO_next(btmp);
- }
-
+
+ btmp = PKCS7_find_digest(&mdc, btmp, j);
+
+ if (btmp == NULL)
+ goto err;
+
/* We now have the EVP_MD_CTX, lets do the
* signing. */
- memcpy(&ctx_tmp,mdc,sizeof(ctx_tmp));
- if (!BUF_MEM_grow(buf,EVP_PKEY_size(si->pkey)))
+ EVP_MD_CTX_copy_ex(&ctx_tmp,mdc);
+ if (!BUF_MEM_grow_clean(buf,EVP_PKEY_size(si->pkey)))
{
- PKCS7err(PKCS7_F_PKCS7_DATASIGN,ERR_R_BIO_LIB);
+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL,ERR_R_BIO_LIB);
goto err;
}
ASN1_UTCTIME *sign_time;
const EVP_MD *md_tmp;
- /* Add signing time */
- sign_time=X509_gmtime_adj(NULL,0);
- PKCS7_add_signed_attribute(si,
- NID_pkcs9_signingTime,
- V_ASN1_UTCTIME,sign_time);
+ /* Add signing time if not already present */
+ if (!PKCS7_get_signed_attribute(si,
+ NID_pkcs9_signingTime))
+ {
+ if (!(sign_time=X509_gmtime_adj(NULL,0)))
+ {
+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL,
+ ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ PKCS7_add_signed_attribute(si,
+ NID_pkcs9_signingTime,
+ V_ASN1_UTCTIME,sign_time);
+ }
/* Add digest */
md_tmp=EVP_MD_CTX_md(&ctx_tmp);
- EVP_DigestFinal(&ctx_tmp,md_data,&md_len);
- digest=M_ASN1_OCTET_STRING_new();
- M_ASN1_OCTET_STRING_set(digest,md_data,md_len);
+ EVP_DigestFinal_ex(&ctx_tmp,md_data,&md_len);
+ if (!(digest=M_ASN1_OCTET_STRING_new()))
+ {
+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL,
+ ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ if (!M_ASN1_OCTET_STRING_set(digest,md_data,
+ md_len))
+ {
+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL,
+ ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
PKCS7_add_signed_attribute(si,
NID_pkcs9_messageDigest,
V_ASN1_OCTET_STRING,digest);
/* Now sign the attributes */
- EVP_SignInit(&ctx_tmp,md_tmp);
+ EVP_SignInit_ex(&ctx_tmp,md_tmp,NULL);
alen = ASN1_item_i2d((ASN1_VALUE *)sk,&abuf,
ASN1_ITEM_rptr(PKCS7_ATTR_SIGN));
if(!abuf) goto err;
OPENSSL_free(abuf);
}
- if (si->pkey->type == EVP_PKEY_DSA)
- ctx_tmp.digest=EVP_dss1();
-
if (!EVP_SignFinal(&ctx_tmp,(unsigned char *)buf->data,
(unsigned int *)&buf->length,si->pkey))
{
- PKCS7err(PKCS7_F_PKCS7_DATASIGN,ERR_R_EVP_LIB);
+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL,ERR_R_EVP_LIB);
goto err;
}
if (!ASN1_STRING_set(si->enc_digest,
(unsigned char *)buf->data,buf->length))
{
- PKCS7err(PKCS7_F_PKCS7_DATASIGN,ERR_R_ASN1_LIB);
+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL,ERR_R_ASN1_LIB);
goto err;
}
}
}
+ else if (i == NID_pkcs7_digest)
+ {
+ unsigned char md_data[EVP_MAX_MD_SIZE];
+ unsigned int md_len;
+ if (!PKCS7_find_digest(&mdc, bio,
+ OBJ_obj2nid(p7->d.digest->md->algorithm)))
+ goto err;
+ EVP_DigestFinal_ex(mdc,md_data,&md_len);
+ M_ASN1_OCTET_STRING_set(p7->d.digest->digest, md_data, md_len);
+ }
if (!PKCS7_is_detached(p7))
{
btmp=BIO_find_type(bio,BIO_TYPE_MEM);
if (btmp == NULL)
{
- PKCS7err(PKCS7_F_PKCS7_DATASIGN,PKCS7_R_UNABLE_TO_FIND_MEM_BIO);
+ PKCS7err(PKCS7_F_PKCS7_DATAFINAL,PKCS7_R_UNABLE_TO_FIND_MEM_BIO);
goto err;
}
BIO_get_mem_ptr(btmp,&buf_mem);
}
ret=1;
err:
+ EVP_MD_CTX_cleanup(&ctx_tmp);
if (buf != NULL) BUF_MEM_free(buf);
return(ret);
}
}
/* Lets verify */
- X509_STORE_CTX_init(ctx,cert_store,x509,cert);
+ if(!X509_STORE_CTX_init(ctx,cert_store,x509,cert))
+ {
+ PKCS7err(PKCS7_F_PKCS7_DATAVERIFY,ERR_R_X509_LIB);
+ goto err;
+ }
X509_STORE_CTX_set_purpose(ctx, X509_PURPOSE_SMIME_SIGN);
i=X509_verify_cert(ctx);
if (i <= 0)
BIO *btmp;
EVP_PKEY *pkey;
+ EVP_MD_CTX_init(&mdc_tmp);
+
if (!PKCS7_type_is_signed(p7) &&
!PKCS7_type_is_signedAndEnveloped(p7)) {
PKCS7err(PKCS7_F_PKCS7_SIGNATUREVERIFY,
if (mdc == NULL)
{
PKCS7err(PKCS7_F_PKCS7_SIGNATUREVERIFY,
- PKCS7_R_INTERNAL_ERROR);
+ ERR_R_INTERNAL_ERROR);
goto err;
}
if (EVP_MD_CTX_type(mdc) == md_type)
break;
+ /* Workaround for some broken clients that put the signature
+ * OID instead of the digest OID in digest_alg->algorithm
+ */
+ if (EVP_MD_pkey_type(EVP_MD_CTX_md(mdc)) == md_type)
+ break;
btmp=BIO_next(btmp);
}
/* mdc is the digest ctx that we want, unless there are attributes,
* in which case the digest is the signed attributes */
- memcpy(&mdc_tmp,mdc,sizeof(mdc_tmp));
+ EVP_MD_CTX_copy_ex(&mdc_tmp,mdc);
sk=si->auth_attr;
if ((sk != NULL) && (sk_X509_ATTRIBUTE_num(sk) != 0))
unsigned int md_len, alen;
ASN1_OCTET_STRING *message_digest;
- EVP_DigestFinal(&mdc_tmp,md_dat,&md_len);
+ EVP_DigestFinal_ex(&mdc_tmp,md_dat,&md_len);
message_digest=PKCS7_digest_from_attributes(sk);
if (!message_digest)
{
goto err;
}
- EVP_VerifyInit(&mdc_tmp,EVP_get_digestbynid(md_type));
+ EVP_VerifyInit_ex(&mdc_tmp,EVP_get_digestbynid(md_type), NULL);
alen = ASN1_item_i2d((ASN1_VALUE *)sk, &abuf,
ASN1_ITEM_rptr(PKCS7_ATTR_VERIFY));
ret = -1;
goto err;
}
- if(pkey->type == EVP_PKEY_DSA) mdc_tmp.digest=EVP_dss1();
i=EVP_VerifyFinal(&mdc_tmp,os->data,os->length, pkey);
EVP_PKEY_free(pkey);
else
ret=1;
err:
+ EVP_MD_CTX_cleanup(&mdc_tmp);
return(ret);
}