Return error if no cipher set for encrypted data type.

Update CHANGES.

CHANGES

@@ -6,9 +6,9 @@
 
   *) Initial support for Cryptographic Message Syntax (aka CMS) based
      on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
-     support for data, signedData, compressedData types currently included,
-     more to come. Scripts to check against RFC4134 examples draft and internal
-     consistency.
+     support for data, signedData, compressedData, digestedData and
+     encryptedData types currently included, more to come. Scripts to
+     check against RFC4134 examples draft.
      [Steve Henson]
 
   *) Zlib compression BIO. This is a filter BIO which compressed and

crypto/cms/cms.h

@@ -273,6 +273,7 @@ void ERR_load_CMS_strings(void);
 #define CMS_F_CMS_ENCRYPTEDCONTENT_INIT_BIO		 148
 #define CMS_F_CMS_ENCRYPTEDCONTENT_TO_BIO		 138
 #define CMS_F_CMS_ENCRYPTEDDATA_DECRYPT			 140
+#define CMS_F_CMS_ENCRYPTEDDATA_ENCRYPT			 149
 #define CMS_F_CMS_ENCRYPTEDDATA_INIT_BIO		 147
 #define CMS_F_CMS_ENCRYPTEDDATA_SET1_KEY		 141
 #define CMS_F_CMS_ENCRYPTED_DATA_DECRYPT		 139
@@ -322,6 +323,7 @@ void ERR_load_CMS_strings(void);
 #define CMS_R_NOT_ENCRYPTED_DATA			 143
 #define CMS_R_NOT_KEY_TRANSPORT				 114
 #define CMS_R_NOT_SUPPORTED_FOR_THIS_KEY_TYPE		 115
+#define CMS_R_NO_CIPHER					 144
 #define CMS_R_NO_CONTENT				 116
 #define CMS_R_NO_DEFAULT_DIGEST				 117
 #define CMS_R_NO_DIGEST_SET				 118

crypto/cms/cms_err.c

@@ -94,6 +94,7 @@ static ERR_STRING_DATA CMS_str_functs[]=
 {ERR_FUNC(CMS_F_CMS_ENCRYPTEDCONTENT_INIT_BIO),	"CMS_ENCRYPTEDCONTENT_INIT_BIO"},
 {ERR_FUNC(CMS_F_CMS_ENCRYPTEDCONTENT_TO_BIO),	"CMS_ENCRYPTEDCONTENT_TO_BIO"},
 {ERR_FUNC(CMS_F_CMS_ENCRYPTEDDATA_DECRYPT),	"CMS_EncryptedData_decrypt"},
+{ERR_FUNC(CMS_F_CMS_ENCRYPTEDDATA_ENCRYPT),	"CMS_EncryptedData_encrypt"},
 {ERR_FUNC(CMS_F_CMS_ENCRYPTEDDATA_INIT_BIO),	"CMS_ENCRYPTEDDATA_INIT_BIO"},
 {ERR_FUNC(CMS_F_CMS_ENCRYPTEDDATA_SET1_KEY),	"CMS_EncryptedData_set1_key"},
 {ERR_FUNC(CMS_F_CMS_ENCRYPTED_DATA_DECRYPT),	"CMS_ENCRYPTED_DATA_DECRYPT"},
@@ -146,6 +147,7 @@ static ERR_STRING_DATA CMS_str_reasons[]=
 {ERR_REASON(CMS_R_NOT_ENCRYPTED_DATA)    ,"not encrypted data"},
 {ERR_REASON(CMS_R_NOT_KEY_TRANSPORT)     ,"not key transport"},
 {ERR_REASON(CMS_R_NOT_SUPPORTED_FOR_THIS_KEY_TYPE),"not supported for this key type"},
+{ERR_REASON(CMS_R_NO_CIPHER)             ,"no cipher"},
 {ERR_REASON(CMS_R_NO_CONTENT)            ,"no content"},
 {ERR_REASON(CMS_R_NO_DEFAULT_DIGEST)     ,"no default digest"},
 {ERR_REASON(CMS_R_NO_DIGEST_SET)         ,"no digest set"},

crypto/cms/cms_smime.c

@@ -227,6 +227,11 @@ CMS_ContentInfo *CMS_EncryptedData_encrypt(BIO *in, const EVP_CIPHER *cipher,
 					unsigned int flags)
 	{
 	CMS_ContentInfo *cms;
+	if (!cipher)
+		{
+		CMSerr(CMS_F_CMS_ENCRYPTEDDATA_ENCRYPT, CMS_R_NO_CIPHER);
+		return NULL;
+		}
 	cms = CMS_ContentInfo_new();
 	if (!cms)
 		return NULL;