Note about des_ncbc_encrypt.

[openssl.git] / doc / crypto / des_modes.pod

diff --git a/doc/crypto/des_modes.pod b/doc/crypto/des_modes.pod
index 096a77f4a37ad24a2d2f2ddbada88d734dff099c..72a4fd2106f38658d17fdd2e3376e0ef3a5f070d 100644 (file)
--- a/doc/crypto/des_modes.pod
+++ b/doc/crypto/des_modes.pod
@@ -47,6 +47,8 @@ An error will only affect one ciphertext block.
 =head2 Cipher Block Chaining Mode (CBC)
 
 Normally, this is found as the function I<algorithm>_cbc_encrypt().
+Be aware that des_cbc_encrypt() is not really DES CBC (it does
+not update the IV); use des_ncbc_encrypt() instead.
 
 =over 2