From 7f996409e7e5aa0bb066257906e87ab3294d4fd0 Mon Sep 17 00:00:00 2001 From: Jouni Malinen Date: Fri, 17 Aug 2012 23:55:14 +0300 Subject: [PATCH] Fix EAP-FAST with OpenSSL 1.0.1 The mechanism to figure out key block size based on ssl->read_hash does not seem to work with OpenSSL 1.0.1, so add an alternative mechanism to figure out the NAC key size that seems to work at least with the current OpenSSL 1.0.1 releases. Signed-hostap: Jouni Malinen intended-for: hostap-1 --- src/crypto/tls_openssl.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/src/crypto/tls_openssl.c b/src/crypto/tls_openssl.c index ddab3a3b6..2c3db4732 100644 --- a/src/crypto/tls_openssl.c +++ b/src/crypto/tls_openssl.c @@ -2832,6 +2832,7 @@ int tls_connection_get_keyblock_size(void *tls_ctx, { const EVP_CIPHER *c; const EVP_MD *h; + int md_size; if (conn == NULL || conn->ssl == NULL || conn->ssl->enc_read_ctx == NULL || @@ -2845,9 +2846,20 @@ int tls_connection_get_keyblock_size(void *tls_ctx, #else h = conn->ssl->read_hash; #endif + if (h) + md_size = EVP_MD_size(h); +#if OPENSSL_VERSION_NUMBER >= 0x10000000L + else if (conn->ssl->s3) + md_size = conn->ssl->s3->tmp.new_mac_secret_size; +#endif + else + return -1; + wpa_printf(MSG_DEBUG, "OpenSSL: keyblock size: key_len=%d MD_size=%d " + "IV_len=%d", EVP_CIPHER_key_length(c), md_size, + EVP_CIPHER_iv_length(c)); return 2 * (EVP_CIPHER_key_length(c) + - EVP_MD_size(h) + + md_size + EVP_CIPHER_iv_length(c)); }