[xmlsec/xmlsec-openssl-110: 2/9] add comments

[Aleksey Sanin <aleksey src gnome org>]

commit 5f97633d1f9fde1fe13a5b13cfa1ffb7cd06900f
Author: Aleksey Sanin <aleksey aleksey com>
Date:   Wed Jan 27 22:46:17 2016 -0800

    add comments

 src/openssl/ciphers.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/src/openssl/ciphers.c b/src/openssl/ciphers.c
index 32e245a..66d4d27 100644
--- a/src/openssl/ciphers.c
+++ b/src/openssl/ciphers.c
@@ -152,6 +152,8 @@ xmlSecOpenSSLEvpBlockCipherCtxInit(xmlSecOpenSSLEvpBlockCipherCtxPtr ctx,
      * The padding used in XML Enc does not follow RFC 1423
      * and is not supported by OpenSSL. However, it is possible
      * to disable padding and do it by yourself
+     *
+     * https://www.w3.org/TR/2002/REC-xmlenc-core-20021210/Overview.html#sec-Alg-Block
      */
     EVP_CIPHER_CTX_set_padding(ctx->cipherCtx, 0);
 
@@ -346,6 +348,8 @@ xmlSecOpenSSLEvpBlockCipherCtxFinal(xmlSecOpenSSLEvpBlockCipherCtxPtr ctx,
      * The padding used in XML Enc does not follow RFC 1423
      * and is not supported by OpenSSL. However, it is possible
      * to disable padding and do it by yourself
+     *
+     * https://www.w3.org/TR/2002/REC-xmlenc-core-20021210/Overview.html#sec-Alg-Block
      */
     if(EVP_CIPHER_CTX_encrypting(ctx->cipherCtx)) {
         xmlSecSize padLen;