multiple RSA ciphertexts of post body's AES key

src/post.rs

@@ -34,7 +34,7 @@ pub struct Ident
     email: Option<IDMaxString>,
 }
 
-/// A single completed post
+/// A single completed post.
 #[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
 pub struct Post
 {
@@ -43,6 +43,11 @@ pub struct Post
 
     /// Identifiers for this post
     ident: Ident,
+
+    /// The client-side generated AES key used for decrypting the body's text.
+    ///
+    /// This AES key can be encrypted with any number of RSA public keys on the client side. There must be at least one, or the post body is lost.
+    body_aes_keys: Vec<PostBodyString>,
     
     /// The client-side encrypted body string
     body: PostBodyString,
@@ -147,11 +152,18 @@ impl Post
 	self.ident.tripcode.as_ref()
     }
     
-    /// The body of this post
+    /// The AES encrypted body of this post
     pub fn body(&self) -> &PostBodyStr
     {
 	self.body.as_ref()
     }
+
+    /// An iterator of RSA ciphertexts of the AES key used to encrypt the body text.
+    pub fn body_keys<'a>(&'a self) -> impl Iterator<Item = &'a PostBodyStr> + ExactSizeIterator + 'a
+    {
+	self.body_aes_keys.iter().map(|x| x.as_ref())
+    }
+    
     /// The PEM formatted signature of this post, if there is one.
     pub fn signature(&self) -> Option<&PEMFormattedStr>
     {
@@ -174,6 +186,7 @@ mod tests
 		tripcode: Some(super::Tripcode::generate("uhh hello").unwrap()),
 	    },
 	    body: super::PostBodyString::new(crate::hard_format::formats::Base64FormattedString::encode("Hello world").into()).unwrap(),
+	    body_aes_keys: vec![super::PostBodyString::new(crate::hard_format::formats::Base64FormattedString::encode("TODO").into()).unwrap()],
 	    signature: None,
 	    hash: Default::default(),