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mbedtls/library
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Hanno Becker 52344c2972 Correct space needed for MAC in case of NULL cipher 
The macro constant `MBEDTLS_SSL_MAC_ADD` defined in `ssl_internal.h`
defines an upper bound for the amount of space needed for the record
authentication tag. Its definition distinguishes between the
presence of an ARC4 or CBC ciphersuite suite, in which case the maximum
size of an enabled SHA digest is used; otherwise, `MBEDTLS_SSL_MAC_ADD`
is set to 16 to accomodate AEAD authentication tags.

This assignment has a flaw in the situation where confidentiality is
not needed and the NULL cipher is in use. In this case, the
authentication tag also uses a SHA digest, but the definition of
`MBEDTLS_SSL_MAC_ADD` doesn't guarantee enough space.

The present commit fixes this by distinguishing between the presence
of *some* ciphersuite using a MAC, including those using a NULL cipher.
For that, the previously internal macro `SSL_SOME_MODES_USE_MAC` from
`ssl_tls.c` is renamed and moved to the public macro
`MBEDTLS_SOME_MODES_USE_MAC` defined in `ssl_internal.h`.
2019-04-25 12:58:21 +01:00
..
.gitignore
aes.c Merge development commit 8e76332 into development-psa 2019-01-31 08:20:20 -05:00
aesni.c Warn if using a memory sanitizer on AESNI 2018-04-05 15:37:38 +02:00
arc4.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
aria.c Merge development commit 8e76332 into development-psa 2019-01-31 08:20:20 -05:00
asn1parse.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
asn1write.c Add new function mbedtls_asn1_write_named_bitstring() 2019-02-28 09:36:30 +00:00
base64.c Add comment to integer overflow fix in base64.c 2017-02-15 23:31:07 +02:00
bignum.c Merge remote-tracking branch 'origin/pr/2405' into development 2019-04-05 14:08:49 +01:00
blowfish.c Merge development commit 8e76332 into development-psa 2019-01-31 08:20:20 -05:00
camellia.c Merge development commit 8e76332 into development-psa 2019-01-31 08:20:20 -05:00
ccm.c Merge development commit 8e76332 into development-psa 2019-01-31 08:20:20 -05:00
certs.c Use certificates from data_files and refer them 2019-02-12 15:30:26 +02:00
chacha20.c Merge development commit 8e76332 into development-psa 2019-01-31 08:20:20 -05:00
chachapoly.c Merge development commit 8e76332 into development-psa 2019-01-31 08:20:20 -05:00
cipher.c Wrap lines at 80 columns 2019-04-02 10:07:28 -07:00
cipher_wrap.c Wrap lines at 80 columns 2019-04-02 10:07:28 -07:00
cmac.c Merge remote-tracking branch 'public/pr/1390' into development 2018-06-27 10:51:47 +01:00
CMakeLists.txt Update library version to 2.17.0 2019-03-19 16:12:55 +00:00
ctr_drbg.c Merge development commit 8e76332 into development-psa 2019-01-31 08:20:20 -05:00
debug.c Merge remote-tracking branch 'origin/pr/1818' into development 2019-03-05 16:27:38 +00:00
des.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
dhm.c Merge development commit 8e76332 into development-psa 2019-01-31 08:20:20 -05:00
ecdh.c Fix ECDH secret export for Mongomery curves 2019-02-26 16:49:52 +00:00
ecdsa.c Merge development commit 8e76332 into development-psa 2019-01-31 08:20:20 -05:00
ecjpake.c Merge development commit 8e76332 into development-psa 2019-01-31 08:20:20 -05:00
ecp.c ECP: remove extra whitespaces 2019-02-26 17:02:37 +00:00
ecp_curves.c Merge development commit 8e76332 into development-psa 2019-01-31 08:20:20 -05:00
entropy.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
entropy_poll.c Merge development commit 8e76332 into development-psa 2019-01-31 08:20:20 -05:00
error.c Merge development commit 8e76332 into development-psa 2019-01-31 08:20:20 -05:00
gcm.c Merge development commit 8e76332 into development-psa 2019-01-31 08:20:20 -05:00
havege.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
hkdf.c Fix issue if salt = NULL and salt_len !=0 in mbedtls_hkdf_extract() 2018-07-23 10:34:47 -07:00
hmac_drbg.c Merge development commit 8e76332 into development-psa 2019-01-31 08:20:20 -05:00
Makefile Merge development commit f352f7 into development-psa 2019-02-01 07:03:03 -05:00
md.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
md2.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
md4.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
md5.c Fix Lucky 13 cache attack on MD/SHA padding 2018-07-05 10:47:00 +02:00
md_wrap.c New MD API: rename functions from _ext to _ret 2018-01-22 11:54:42 +01:00
memory_buffer_alloc.c Fix braces in mbedtls_memory_buffer_alloc_status() 2018-06-12 16:56:04 +01:00
net_sockets.c Merge remote-tracking branch 'public/pr/1198' into development 2018-07-24 17:20:17 +01:00
nist_kw.c Merge development commit 8e76332 into development-psa 2019-01-31 08:20:20 -05:00
oid.c Add certificate policy oid x509 extension 2019-04-16 13:26:54 +03:00
padlock.c
pem.c Merge development commit 8e76332 into development-psa 2019-01-31 08:20:20 -05:00
pk.c pk: restructure precondition check 2019-02-05 05:09:05 -05:00
pk_wrap.c Fix outdated comment in ecdsa_verify_wrap() 2019-01-29 08:26:15 +00:00
pkcs5.c Merge development commit 8e76332 into development-psa 2019-01-31 08:20:20 -05:00
pkcs11.c
pkcs12.c Merge development commit 8e76332 into development-psa 2019-01-31 08:20:20 -05:00
pkparse.c Merge development commit 8e76332 into development-psa 2019-01-31 08:20:20 -05:00
pkwrite.c Merge development-psa commit 80b5662 into development-psa-merged branch 2019-02-05 06:02:51 -05:00
platform.c Merge remote-tracking branch 'origin/pr/1551' into development 2019-01-30 13:24:55 +00:00
platform_util.c Merge development commit 8e76332 into development-psa 2019-01-31 08:20:20 -05:00
poly1305.c Merge development commit 8e76332 into development-psa 2019-01-31 08:20:20 -05:00
ripemd160.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
rsa.c rsa: Enable use of zero-length null output 2019-02-11 03:39:51 -05:00
rsa_internal.c Bignum: Deprecate mbedtls_mpi_is_prime() 2018-10-09 16:36:53 +01:00
sha1.c Merge development commit 8e76332 into development-psa 2019-01-31 08:20:20 -05:00
sha256.c Merge development commit 8e76332 into development-psa 2019-01-31 08:20:20 -05:00
sha512.c Merge development commit 8e76332 into development-psa 2019-01-31 08:20:20 -05:00
ssl_cache.c Remove peer CRT from cache if !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE 2019-02-26 14:38:09 +00:00
ssl_ciphersuites.c Reduce priority of 3DES ciphersuites 2019-03-01 10:19:27 +01:00
ssl_cli.c Remove ciphersuite_info from ssl_transform 2019-04-25 12:58:21 +01:00
ssl_cookie.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
ssl_srv.c Remove ciphersuite_info from ssl_transform 2019-04-25 12:58:21 +01:00
ssl_ticket.c Fix typo in SSL ticket documentation 2019-02-26 14:38:09 +00:00
ssl_tls.c Correct space needed for MAC in case of NULL cipher 2019-04-25 12:58:21 +01:00
threading.c Don't declare and define gmtime()-mutex on Windows platforms 2018-09-06 12:09:56 +01:00
timing.c Merge remote-tracking branch 'public/pr/1777' into development-proposed 2018-11-04 18:51:36 +00:00
version.c Fix missing void argument declarations #678 2016-11-04 23:05:56 +01:00
version_features.c Merge remote-tracking branch 'origin/pr/2532' into development 2019-04-16 14:42:11 +01:00
x509.c Merge remote-tracking branch 'origin/pr/2106' into development 2019-04-05 13:47:06 +01:00
x509_create.c Break overly long line in library/x509_create.c 2018-11-02 10:52:38 +00:00
x509_crl.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00
x509_crt.c Merge remote-tracking branch 'origin/pr/2532' into development 2019-04-16 14:42:11 +01:00
x509_csr.c Merge development commit 8e76332 into development-psa 2019-01-31 08:20:20 -05:00
x509write_crt.c Add new function mbedtls_asn1_write_named_bitstring() 2019-02-28 09:36:30 +00:00
x509write_csr.c Add new function mbedtls_asn1_write_named_bitstring() 2019-02-28 09:36:30 +00:00
xtea.c Rename mbedtls_zeroize to mbedtls_platform_zeroize 2018-04-17 10:00:21 -05:00