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Add -keyopt option to cms utility. 

Add support for custom public key parameters in the cms utility using
the -keyopt switch. Works for -sign and also -encrypt if -recip is used.
This commit is contained in:
Dr. Stephen Henson 2013-06-19 18:24:00 +01:00
parent 0574cadf85
commit 02498cc885
1 changed files with 143 additions and 5 deletions
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148
apps/cms.c
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@ -74,6 +74,8 @@ static void receipt_request_print(BIO *out, CMS_ContentInfo *cms);
static CMS_ReceiptRequest *make_receipt_request(STACK_OF(OPENSSL_STRING) *rr_to,
int rr_allorfirst,
STACK_OF(OPENSSL_STRING) *rr_from);
static int cms_set_pkey_param(EVP_PKEY_CTX *pctx,
STACK_OF(OPENSSL_STRING) *param);
#define SMIME_OP 0x10
#define SMIME_IP 0x20
@ -97,6 +99,15 @@ static CMS_ReceiptRequest *make_receipt_request(STACK_OF(OPENSSL_STRING) *rr_to,
int verify_err = 0;
typedef struct cms_key_param_st cms_key_param;
struct cms_key_param_st
{
int idx;
STACK_OF(OPENSSL_STRING)*param;
cms_key_param *next;
};
int MAIN(int, char **);
int MAIN(int argc, char **argv)
@ -139,6 +150,8 @@ int MAIN(int argc, char **argv)
unsigned char *pwri_pass = NULL, *pwri_tmp = NULL;
size_t secret_keylen = 0, secret_keyidlen = 0;
cms_key_param *key_first = NULL, *key_param = NULL;
ASN1_OBJECT *econtent_type = NULL;
X509_VERIFY_PARAM *vpm = NULL;
@ -412,7 +425,20 @@ int MAIN(int argc, char **argv)
{
if (!args[1])
goto argerr;
recipfile = *++args;
if (operation == SMIME_ENCRYPT)
{
if (!encerts)
encerts = sk_X509_new_null();
cert = load_cert(bio_err,*++args,FORMAT_PEM,
NULL, e,
"recipient certificate file");
if (!cert)
goto end;
sk_X509_push(encerts, cert);
cert = NULL;
}
else
recipfile = *++args;
}
else if (!strcmp (*args, "-certsout"))
{
@ -460,6 +486,43 @@ int MAIN(int argc, char **argv)
goto argerr;
keyform = str2fmt(*++args);
}
else if (!strcmp (*args, "-keyopt"))
{
int keyidx = -1;
if (!args[1])
goto argerr;
if (operation == SMIME_ENCRYPT)
{
if (encerts)
keyidx += sk_X509_num(encerts);
}
else
{
if (keyfile || signerfile)
keyidx++;
if (skkeys)
keyidx += sk_OPENSSL_STRING_num(skkeys);
}
if (keyidx < 0)
{
BIO_printf(bio_err, "No key specified\n");
goto argerr;
}
if (key_param == NULL || key_param->idx != keyidx)
{
cms_key_param *nparam;
nparam = OPENSSL_malloc(sizeof(cms_key_param));
nparam->idx = keyidx;
nparam->param = sk_OPENSSL_STRING_new_null();
nparam->next = NULL;
if (key_first == NULL)
key_first = nparam;
else
key_param->next = nparam;
key_param = nparam;
}
sk_OPENSSL_STRING_push(key_param->param, *++args);
}
else if (!strcmp (*args, "-rctform"))
{
if (!args[1])
@ -577,7 +640,7 @@ int MAIN(int argc, char **argv)
}
else if (operation == SMIME_ENCRYPT)
{
if (!*args && !secret_key && !pwri_pass)
if (!*args && !secret_key && !pwri_pass && !encerts)
{
BIO_printf(bio_err, "No recipient(s) certificate(s) specified\n");
badarg = 1;
@ -633,6 +696,7 @@ int MAIN(int argc, char **argv)
BIO_printf (bio_err, "-inform arg input format SMIME (default), PEM or DER\n");
BIO_printf (bio_err, "-inkey file input private key (if not signer or recipient)\n");
BIO_printf (bio_err, "-keyform arg input private key format (PEM or ENGINE)\n");
BIO_printf (bio_err, "-keyopt nm:v set public key parameters\n");
BIO_printf (bio_err, "-out file output file\n");
BIO_printf (bio_err, "-outform arg output format SMIME (default), PEM or DER\n");
BIO_printf (bio_err, "-content file supply or override content for detached signature\n");
@ -718,7 +782,7 @@ int MAIN(int argc, char **argv)
goto end;
}
if (*args)
if (*args && !encerts)
encerts = sk_X509_new_null();
while (*args)
{
@ -912,10 +976,37 @@ int MAIN(int argc, char **argv)
}
else if (operation == SMIME_ENCRYPT)
{
int i;
flags |= CMS_PARTIAL;
cms = CMS_encrypt(encerts, in, cipher, flags);
cms = CMS_encrypt(NULL, in, cipher, flags);
if (!cms)
goto end;
for (i = 0; i < sk_X509_num(encerts); i++)
{
CMS_RecipientInfo *ri;
cms_key_param *kparam;
int tflags = flags;
X509 *x = sk_X509_value(encerts, i);
for(kparam = key_first; kparam; kparam = kparam->next)
{
if(kparam->idx == i)
{
tflags |= CMS_KEY_PARAM;
break;
}
}
ri = CMS_add1_recipient_cert(cms, x, tflags);
if (!ri)
goto end;
if (kparam)
{
EVP_PKEY_CTX *pctx;
pctx = CMS_RecipientInfo_get0_pkey_ctx(ri);
if (!cms_set_pkey_param(pctx, kparam->param))
goto end;
}
}
if (secret_key)
{
if (!CMS_add0_recipient_key(cms, NID_undef,
@ -1004,8 +1095,11 @@ int MAIN(int argc, char **argv)
for (i = 0; i < sk_OPENSSL_STRING_num(sksigners); i++)
{
CMS_SignerInfo *si;
cms_key_param *kparam;
int tflags = flags;
signerfile = sk_OPENSSL_STRING_value(sksigners, i);
keyfile = sk_OPENSSL_STRING_value(skkeys, i);
signer = load_cert(bio_err, signerfile,FORMAT_PEM, NULL,
e, "signer certificate");
if (!signer)
@ -1014,9 +1108,24 @@ int MAIN(int argc, char **argv)
"signing key file");
if (!key)
goto end;
si = CMS_add1_signer(cms, signer, key, sign_md, flags);
for(kparam = key_first; kparam; kparam = kparam->next)
{
if(kparam->idx == i)
{
tflags |= CMS_KEY_PARAM;
break;
}
}
si = CMS_add1_signer(cms, signer, key, sign_md, tflags);
if (!si)
goto end;
if (kparam)
{
EVP_PKEY_CTX *pctx;
pctx = CMS_SignerInfo_get0_pkey_ctx(si);
if (!cms_set_pkey_param(pctx, kparam->param))
goto end;
}
if (rr && !CMS_add1_ReceiptRequest(si, rr))
goto end;
X509_free(signer);
@ -1210,6 +1319,14 @@ end:
sk_OPENSSL_STRING_free(rr_to);
if (rr_from)
sk_OPENSSL_STRING_free(rr_from);
for(key_param = key_first; key_param;)
{
cms_key_param *tparam;
sk_OPENSSL_STRING_free(key_param->param);
tparam = key_param->next;
OPENSSL_free(key_param);
key_param = tparam;
}
X509_STORE_free(store);
X509_free(cert);
X509_free(recip);
@ -1394,4 +1511,25 @@ static CMS_ReceiptRequest *make_receipt_request(STACK_OF(OPENSSL_STRING) *rr_to,
return NULL;
}
static int cms_set_pkey_param(EVP_PKEY_CTX *pctx,
STACK_OF(OPENSSL_STRING) *param)
{
char *keyopt;
int i;
if (sk_OPENSSL_STRING_num(param) <= 0)
return 1;
for (i = 0; i < sk_OPENSSL_STRING_num(param); i++)
{
keyopt = sk_OPENSSL_STRING_value(param, i);
if (pkey_ctrl_string(pctx, keyopt) <= 0)
{
BIO_printf(bio_err, "parameter error \"%s\"\n",
keyopt);
ERR_print_errors(bio_err);
return 0;
}
}
return 1;
}
#endif