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authorDenys Vlasenko <vda.linux@googlemail.com>2018-11-24 21:26:20 +0100
committerDenys Vlasenko <vda.linux@googlemail.com>2018-11-24 21:26:20 +0100
commitd2923b3d239d55565427533d3a9702cf1d27eb92 (patch)
tree3c2e778fc1312349a03ab207db6b2076036638b9 /networking/tls.c
parent03569bc50f0d731aa3af94ab600adc59eaac3162 (diff)
downloadbusybox-d2923b3d239d55565427533d3a9702cf1d27eb92.tar.gz
tls: fix is.gd again, fix AES-CBC using decrypt key instead of encrypt
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'networking/tls.c')
-rw-r--r--networking/tls.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/networking/tls.c b/networking/tls.c
index b774340ae..f337bc0c9 100644
--- a/networking/tls.c
+++ b/networking/tls.c
@@ -58,11 +58,13 @@
// Works with "wget https://cdn.kernel.org/pub/linux/kernel/v4.x/linux-4.9.5.tar.xz"
#define CIPHER_ID2 TLS_RSA_WITH_AES_128_CBC_SHA
-// bug #11456: host is.gd accepts only ECDHE-ECDSA-foo (the simplest which works: ECDHE-ECDSA-AES128-SHA 0xC009)
-#define CIPHER_ID3 TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
-
+// bug #11456:
// ftp.openbsd.org only supports ECDHE-RSA-AESnnn-GCM-SHAnnn or ECDHE-RSA-CHACHA20-POLY1305
-#define CIPHER_ID4 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
+#define CIPHER_ID3 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
+// host is.gd accepts only ECDHE-ECDSA-foo (the simplest which works: ECDHE-ECDSA-AES128-SHA 0xC009),
+// and immediately throws alert 40 "handshake failure" in response to our hello record
+// if ECDHE-ECDSA-AES-CBC-SHA is *before* ECDHE-RSA-AES-GCM cipher in the list! Server bug?
+#define CIPHER_ID4 TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
#define NUM_CIPHERS 4
@@ -785,7 +787,7 @@ static void xwrite_encrypted_and_hmac_signed(tls_state_t *tls, unsigned size, un
/* Encrypt content+MAC+padding in place */
aes_cbc_encrypt(
- &tls->aes_decrypt, /* selects 128/256 */
+ &tls->aes_encrypt, /* selects 128/256 */
buf - AES_BLOCK_SIZE, /* IV */
buf, size, /* plaintext */
buf /* ciphertext */