From 41418ed682f0b407a6b8d1f04ae87e60f36a2feb Mon Sep 17 00:00:00 2001 From: Günther Deschner Date: Mon, 3 Dec 2007 14:06:22 +0100 Subject: Add decode_wkssvc_join_password_buffer(). Guenther (This used to be commit ba2a544baf1e1cc3652512ed5df2bb408fa8bdfd) --- source3/libsmb/smbencrypt.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) (limited to 'source3/libsmb') diff --git a/source3/libsmb/smbencrypt.c b/source3/libsmb/smbencrypt.c index 6060669e49..8793fdcb55 100644 --- a/source3/libsmb/smbencrypt.c +++ b/source3/libsmb/smbencrypt.c @@ -730,3 +730,32 @@ void encode_wkssvc_join_password_buffer(TALLOC_CTX *mem_ctx, data_blob_free(&confounded_session_key); } + +void decode_wkssvc_join_password_buffer(TALLOC_CTX *mem_ctx, + struct wkssvc_PasswordBuffer *pwd_buf, + DATA_BLOB *session_key, + char **pwd) +{ + uint8_t buffer[516]; + struct MD5Context ctx; + uint32_t pwd_len; + + DATA_BLOB confounded_session_key = data_blob_talloc(mem_ctx, NULL, 16); + + int confounder_len = 8; + uint8_t confounder[8]; + + memcpy(&confounder, &pwd_buf->data[0], confounder_len); + memcpy(&buffer, &pwd_buf->data[8], 516); + + MD5Init(&ctx); + MD5Update(&ctx, session_key->data, session_key->length); + MD5Update(&ctx, confounder, confounder_len); + MD5Final(confounded_session_key.data, &ctx); + + SamOEMhashBlob(buffer, 516, &confounded_session_key); + + decode_pw_buffer(mem_ctx, buffer, pwd, &pwd_len, STR_UNICODE); + + data_blob_free(&confounded_session_key); +} -- cgit