From c252e5d1c3492c0bd3bc3be8a4b54ec165dc3a91 Mon Sep 17 00:00:00 2001
From: Benjamin Dauvergne <bdauvergne@entrouvert.com>
Date: Fri, 27 Mar 2009 15:05:26 +0000
Subject: Core: remove lasso_node_decrypt implementation

 * lasso/xml/xml.c:
   remove code for lasso_node_decrypt.
---
 lasso/xml/xml.c | 148 --------------------------------------------------------
 1 file changed, 148 deletions(-)

(limited to 'lasso')

diff --git a/lasso/xml/xml.c b/lasso/xml/xml.c
index 488cc440..dcf3a5e3 100644
--- a/lasso/xml/xml.c
+++ b/lasso/xml/xml.c
@@ -644,154 +644,6 @@ exit:
 }
 
 
-/**
- * lasso_node_decrypt:
- * @xml_node: an EncryptedData #xmlNode to decrypt
- * @encryption_private_key : RSA private key to decrypt the node
- *
- * Decrypt a DES EncryptedKey with the RSA key.
- * Then decrypt @xml_node with the DES key.
- *
- * Return value: a LassoNode which is the decrypted @xml_node.
- * It must be freed by the caller.
- **/
-LassoNode*
-lasso_node_decrypt(LassoSaml2EncryptedElement* encrypted_element,
-		xmlSecKey *encryption_private_key)
-{
-	xmlDocPtr doc = NULL;
-	xmlDocPtr doc2 = NULL;
-	xmlSecEncCtxPtr encCtx = NULL;
-	xmlSecKeyPtr sym_key = NULL;
-	xmlSecBufferPtr key_buffer = NULL;
-	LassoNode *decrypted_node = NULL;
-	xmlNodePtr encrypted_data_node = NULL;
-	xmlNodePtr encrypted_key_node = NULL;
-	xmlNodePtr encryption_method_node = NULL;
-	char *algorithm;
-	xmlSecKeyDataId key_type;
-	GList *i = NULL;
-
-	if (encryption_private_key == NULL || !xmlSecKeyIsValid(encryption_private_key)) {
-		message(G_LOG_LEVEL_WARNING, "Invalid decryption key");
-		goto cleanup;
-	}
-
-	/* Need to duplicate it because xmlSecEncCtxDestroy(encCtx); will destroy it */
-	encryption_private_key = xmlSecKeyDuplicate(encryption_private_key);
-
-	encrypted_data_node = xmlCopyNode(encrypted_element->EncryptedData, 1);
-
-	/* Get the encryption algorithm for EncryptedData in its EncryptionMethod node */
-	encryption_method_node = xmlSecTmplEncDataGetEncMethodNode(encrypted_data_node);
-	if (encryption_method_node == NULL) {
-		message(G_LOG_LEVEL_WARNING, "No EncryptionMethod node in EncryptedData");
-		goto cleanup;
-	}
-	algorithm = (char*)xmlGetProp(encryption_method_node, (xmlChar *)"Algorithm");
-	if (algorithm == NULL) {
-		message(G_LOG_LEVEL_WARNING, "No EncryptionMethod");
-		goto cleanup;
-	}
-	if (strstr(algorithm , "#aes")) {
-		key_type = xmlSecKeyDataAesId;
-	} else if (strstr(algorithm , "des")) {
-		key_type = xmlSecKeyDataDesId;
-	} else {
-		message(G_LOG_LEVEL_WARNING, "Unknown EncryptionMethod");
-		goto cleanup;
-	}
-
-	/* Get the EncryptedKey */
-	if (encrypted_element->EncryptedKey != NULL) {
-		for (i = encrypted_element->EncryptedKey; i; i = g_list_next(i)) {
-			if (i->data == NULL)
-				continue;
-			if (strcmp((char*)((xmlNode*)i->data)->name, "EncryptedKey") == 0) {
-				encrypted_key_node = xmlCopyNode((xmlNode*)(i->data), 1);
-				break;
-			}
-		}
-	} else {
-		/* Look an EncryptedKey inside the EncryptedData */
-		encrypted_key_node = encrypted_data_node;
-		while (encrypted_key_node &&
-				strcmp((char*)encrypted_key_node->name, "EncryptedKey") != 0 ) {
-			if (strcmp((char*)encrypted_key_node->name, "EncryptedData") == 0 ||
-					strcmp((char*)encrypted_key_node->name, "KeyInfo") == 0) {
-				encrypted_key_node = xmlCopyNode(encrypted_key_node->children, 1);
-				break;
-			}
-			encrypted_key_node = encrypted_key_node->next;
-		}
-	}
-
-	if (encrypted_key_node == NULL) {
-		message(G_LOG_LEVEL_WARNING, "No EncryptedKey node");
-		goto cleanup;
-	}
-
-	/* Create a document to contain the node to decrypt */
-	doc = xmlNewDoc((xmlChar*)"1.0");
-	xmlDocSetRootElement(doc, encrypted_data_node);
-
-	doc2 = xmlNewDoc((xmlChar*)"1.0");
-	xmlDocSetRootElement(doc2, encrypted_key_node);
-
-	/* create encryption context to decrypt EncryptedKey */
-	encCtx = xmlSecEncCtxCreate(NULL);
-	if (encCtx == NULL) {
-		message(G_LOG_LEVEL_WARNING, "Failed to create encryption context");
-		goto cleanup;
-	}
-	encCtx->encKey = encryption_private_key;
-	encCtx->mode = xmlEncCtxModeEncryptedKey;
-
-	/* decrypt the EncryptedKey */
-	key_buffer = xmlSecEncCtxDecryptToBuffer(encCtx, encrypted_key_node);
-	if (key_buffer != NULL) {
-		sym_key = xmlSecKeyReadBuffer(key_type, key_buffer);
-	}
-	if (sym_key == NULL) {
-		message(G_LOG_LEVEL_WARNING, "EncryptedKey decryption failed");
-		goto cleanup;
-	}
-
-	/* create encryption context to decrypt EncryptedData */
-	xmlSecEncCtxDestroy(encCtx);
-	encCtx = xmlSecEncCtxCreate(NULL);
-	if (encCtx == NULL) {
-		message(G_LOG_LEVEL_WARNING, "Failed to create encryption context");
-		goto cleanup;
-	}
-	encCtx->encKey = sym_key;
-	encCtx->mode = xmlEncCtxModeEncryptedData;
-
-	/* decrypt the EncryptedData */
-	if ((xmlSecEncCtxDecrypt(encCtx, encrypted_data_node) < 0) || (encCtx->result == NULL)) {
-		message(G_LOG_LEVEL_WARNING, "EncryptedData decryption failed");
-		goto cleanup;
-	}
-
-	decrypted_node = lasso_node_new_from_xmlNode(doc->children);
-
-cleanup:
-	if (doc == NULL) {
-		if (encrypted_data_node) {
-			xmlFreeNode(encrypted_data_node);
-		}
-		if (encrypted_key_node) {
-			xmlFreeNode(encrypted_key_node);
-		}
-	}
-	if (encCtx) {
-		xmlSecEncCtxDestroy(encCtx);
-	}
-	lasso_release_doc(doc);
-
-	return decrypted_node;
-}
-
 /**
  * lasso_node_init_from_query:
  * @node: a #LassoNode (or derived class)
-- 
cgit