#include <openssl/asn1t.h>
#include <openssl/pem.h>
#include <openssl/x509v3.h>
-#include "cms.h"
+#include <openssl/cms.h>
#include "cms_lcl.h"
ASN1_SIMPLE(CMS_Receipt, originatorSignatureValue, ASN1_OCTET_STRING)
} ASN1_SEQUENCE_END(CMS_Receipt)
+/* Utilities to encode the CMS_SharedInfo structure used during key
+ * derivation.
+ */
+
+typedef struct {
+ X509_ALGOR *keyInfo;
+ ASN1_OCTET_STRING *entityUInfo;
+ ASN1_OCTET_STRING *suppPubInfo;
+} CMS_SharedInfo;
+
+ASN1_SEQUENCE(CMS_SharedInfo) = {
+ ASN1_SIMPLE(CMS_SharedInfo, keyInfo, X509_ALGOR),
+ ASN1_EXP_OPT(CMS_SharedInfo, entityUInfo, ASN1_OCTET_STRING, 0),
+ ASN1_EXP_OPT(CMS_SharedInfo, suppPubInfo, ASN1_OCTET_STRING, 2),
+} ASN1_SEQUENCE_END(CMS_SharedInfo)
+
+int CMS_SharedInfo_encode(unsigned char **pder, X509_ALGOR *kekalg,
+ ASN1_OCTET_STRING *ukm, int keylen)
+ {
+ union {
+ CMS_SharedInfo *pecsi;
+ ASN1_VALUE *a;
+ } intsi = {NULL};
+
+ ASN1_OCTET_STRING oklen;
+ unsigned char kl[4];
+ CMS_SharedInfo ecsi;
+
+ keylen <<= 3;
+ kl[0] = (keylen >> 24) & 0xff;
+ kl[1] = (keylen >> 16) & 0xff;
+ kl[2] = (keylen >> 8) & 0xff;
+ kl[3] = keylen & 0xff;
+ oklen.length = 4;
+ oklen.data = kl;
+ oklen.type = V_ASN1_OCTET_STRING;
+ oklen.flags = 0;
+ ecsi.keyInfo = kekalg;
+ ecsi.entityUInfo = ukm;
+ ecsi.suppPubInfo = &oklen;
+ intsi.pecsi = &ecsi;
+ return ASN1_item_i2d(intsi.a, pder, ASN1_ITEM_rptr(CMS_SharedInfo));
+ }