aboutsummaryrefslogtreecommitdiffstats
path: root/src/lib/kdf/prf_ssl3/prf_ssl3.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/lib/kdf/prf_ssl3/prf_ssl3.cpp')
-rw-r--r--src/lib/kdf/prf_ssl3/prf_ssl3.cpp75
1 files changed, 0 insertions, 75 deletions
diff --git a/src/lib/kdf/prf_ssl3/prf_ssl3.cpp b/src/lib/kdf/prf_ssl3/prf_ssl3.cpp
deleted file mode 100644
index 40bce53b0..000000000
--- a/src/lib/kdf/prf_ssl3/prf_ssl3.cpp
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
-* SSLv3 PRF
-* (C) 2004-2006 Jack Lloyd
-*
-* Botan is released under the Simplified BSD License (see license.txt)
-*/
-
-#include <botan/prf_ssl3.h>
-#include <botan/symkey.h>
-#include <botan/exceptn.h>
-#include <botan/sha160.h>
-#include <botan/md5.h>
-
-namespace Botan {
-
-namespace {
-
-/*
-* Return the next inner hash
-*/
-OctetString next_hash(size_t where, size_t want,
- HashFunction& md5, HashFunction& sha1,
- const byte secret[], size_t secret_len,
- const byte seed[], size_t seed_len)
- {
- BOTAN_ASSERT(want <= md5.output_length(),
- "Output size producable by MD5");
-
- const byte ASCII_A_CHAR = 0x41;
-
- for(size_t j = 0; j != where + 1; j++)
- sha1.update(static_cast<byte>(ASCII_A_CHAR + where));
- sha1.update(secret, secret_len);
- sha1.update(seed, seed_len);
- secure_vector<byte> sha1_hash = sha1.final();
-
- md5.update(secret, secret_len);
- md5.update(sha1_hash);
- secure_vector<byte> md5_hash = md5.final();
-
- return OctetString(&md5_hash[0], want);
- }
-
-}
-
-/*
-* SSL3 PRF
-*/
-secure_vector<byte> SSL3_PRF::derive(size_t key_len,
- const byte secret[], size_t secret_len,
- const byte seed[], size_t seed_len) const
- {
- if(key_len > 416)
- throw Invalid_Argument("SSL3_PRF: Requested key length is too large");
-
- MD5 md5;
- SHA_160 sha1;
-
- OctetString output;
-
- int counter = 0;
- while(key_len)
- {
- const size_t produce = std::min<size_t>(key_len, md5.output_length());
-
- output = output + next_hash(counter++, produce, md5, sha1,
- secret, secret_len, seed, seed_len);
-
- key_len -= produce;
- }
-
- return output.bits_of();
- }
-
-}