Retain compatibility of EVP_DigestInit() and EVP_DigestFinal()

with existing code.

Modify library to use digest *_ex() functions.

1 files changed, 10 insertions, 0 deletions

diff --git a/CHANGES b/CHANGES
index df2d24ddd6..0cdc0f5003 100644
--- a/CHANGES
+++ b/CHANGES
@@ -12,6 +12,16 @@
          *) applies to 0.9.6a/0.9.6b/0.9.6c and 0.9.7
          +) applies to 0.9.7 only
 
+  +) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
+     compatibility with existing code. In particular the 'ctx' parameter is
+     not assumed to be valid before the call to EVP_DigestInit() and it is tidied
+     up after a call to EVP_DigestFinal(). A new function EVP_DigestFinal_ex()
+     but does not free up the ctx. Also change function EVP_MD_CTX_copy() to
+     assume the destination is uninitialized: EVP_MD_CTX_copy_ex() do assumes
+     the destiation is valid. Also modify all the OpenSSL digest calls to call 
+     EVP_DigestInit_ex(), EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
+     [Steve Henson]
+
   +) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
      so that complete 'Handshake' protocol structures are kept in memory
      instead of overwriting 'msg_type' and 'length' with 'body' data.