- Added preliminary ASN.1 buffer writing support

- Added preliminary X509 Certificate Request writing support
 - Added key_app_writer example application
 - Added cert_req example application

include/polarssl/config.h

@@ -288,6 +288,15 @@
  */
 #define POLARSSL_ASN1_PARSE_C
 
+/**
+ * \def POLARSSL_ASN1_WRITE_C
+ *
+ * Enable the generic ASN1 writer.
+ *
+ * Module:  library/asn1write.c
+ */
+#define POLARSSL_ASN1_WRITE_C
+
 /**
  * \def POLARSSL_BASE64_C
  *
@@ -697,6 +706,19 @@
  */
 #define POLARSSL_X509_PARSE_C
 
+/**
+ * \def POLARSSL_X509_WRITE_C
+ *
+ * Enable X.509 buffer writing.
+ *
+ * Module:  library/x509write.c
+ *
+ * Requires: POLARSSL_BIGNUM_C, POLARSSL_RSA_C
+ *
+ * This module is required for X.509 certificate request writing.
+ */
+#define POLARSSL_X509_WRITE_C
+
 /**
  * \def POLARSSL_XTEA_C
  *