rust/pv: Support for writing data in PEM format

Use existing OpenSSL functionalities to create PEM files containing
arbitrary data.

Acked-by: Marc Hartmayer <marc@linux.ibm.com>
Acked-by: Christoph Schlameuss <schlameuss@linux.ibm.com>
Signed-off-by: Steffen Eiden <seiden@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>

rust/pv/src/lib.rs

@@ -37,6 +37,7 @@ mod brcb;
 mod crypto;
 mod error;
 mod openssl_extensions;
+mod pem_utils;
 mod req;
 mod utils;
 mod uvattest;
@@ -71,6 +72,11 @@ pub mod attest {
     };
 }
 
+/// Definitions and functions to write objects in PEM format
+pub mod pem {
+    pub use crate::pem_utils::Pem;
+}
+
 /// Miscellaneous functions and definitions
 pub mod misc {
     pub use pv_core::misc::*;