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3062 Commits

Author SHA1 Message Date
Hanno Becker
bdefff1dde Change signature of mbedtls_rsa_deduce_private 
Make input arguments constant and adapt the implementation to use a temporary instead of in-place operations.
 2017-10-02 09:59:48 +01:00
Hanno Becker
ba5b755f1a Change signature and semantics of mbedtls_rsa_deduce_moduli 
Input arguments are marked as constant. Further, no double-checking is performed when a factorization of the modulus has
been found.
 2017-10-02 09:55:49 +01:00
Hanno Becker
2f38a43d3a Enhance documentation of ssl_write_hostname_ext, adapt ChangeLog. 
Add a reference to the relevant RFC, adapt ChangeLog.
 2017-09-30 23:35:21 +01:00
Hanno Becker
39f5d359f5 Make mbedtls_ssl_set_hostname safe to be called multiple times 
Zeroize and free previously set hostnames before overwriting
them. Also, allow clearance of hostname by providing NULL parameter.
 2017-09-30 23:35:02 +01:00
Hanno Becker
b4274210a4 Improve documentation in pkparse.c 
State explicitly that `pk_parse_pkcs8_undencrypted_der` and `pk_parse_key_pkcs8_encrypted_der` are not responsible for
zeroizing and freeing the provided key buffer.
 2017-09-29 19:18:51 +01:00
Hanno Becker
f04111f5c5 Fix typo 2017-09-29 19:18:42 +01:00
Hanno Becker
56bae95e1d Improve style and documentation, fix typo 2017-09-29 15:43:49 +01:00
Hanno Becker
bead71752e Correct typo in rsa.c 2017-09-29 12:41:06 +01:00
Hanno Becker
ba1ba11a98 Check that length is properly set in mbedtls_rsa_check_pubkey 2017-09-29 11:54:05 +01:00
Hanno Becker
2f8f06aa25 Don't always recompute context length in mbedtls_rsa_get_len 
This commit changes the implementation of `mbedtls_rsa_get_len` to return
`ctx->len` instead of always re-computing the modulus' byte-size via
`mbedtls_mpi_size`.
 2017-09-29 11:54:05 +01:00
Hanno Becker
2cca6f3290 Always deduce N from P, Q in mbedtls_rsa_complete 
Previously, a parameter set of (-, P, Q, -, E) was completed, but (-, P, Q, D,
E) wasn't - this is odd.
 2017-09-29 11:54:05 +01:00
Hanno Becker
e71ad12cd5 Minor code-improvements in dhm.c 2017-09-28 11:06:31 +01:00
Hanno Becker
4c72b000cb Add const-qualifiers to prime constants 2017-09-27 16:06:37 +01:00
Hanno Becker
8c8b0ab877 Change default Diffie-Hellman parameters from RFC 5114 to RFC 7919 
The origin of the primes in RFC 5114 is undocumented and their use therefore
constitutes a security risk.
 2017-09-27 12:43:57 +01:00
Hanno Becker
b2bad800e4 Introduce Diffie-Hellman parameters from RFC 7919 2017-09-27 12:43:55 +01:00
Hanno Becker
0e6dc84f3e Deprecate Diffie-Hellman groups from RFC 5114 
Also, change the way the standardized Diffie-Hellman groups are provided from
macro-based string-literals to global variables.
 2017-09-27 11:48:02 +01:00
Ron Eldor
2981a0a740 Address Andres PR comments 
Address Andres' comments in the PR
 2017-09-24 15:41:09 +03:00
Jaeden Amero
1526330931 Allow alternate implementation of GCM 
Provide the ability to use an alternative implementation of GCM in place
of the library-provided implementation.
 2017-09-22 17:42:44 +01:00
Hanno Becker
d8a6f7cfbe Clarify code-paths in x509write_csr and x509write_crt 2017-09-22 16:05:43 +01:00
Hanno Becker
a20e33ad59 Use X509 CRT version macros for version checks in x509write_crt_der 2017-09-22 15:40:01 +01:00
Janos Follath
1ad1c6d4e1 Fix typo 2017-09-21 12:05:30 +01:00
Janos Follath
aa325d7b7f DHM: Fix dhm_check_range() always returning 0 
Although the variable ret was initialised to an error, the
MBEDTLS_MPI_CHK macro was overwriting it. Therefore it ended up being
0 whenewer the bignum computation was successfull and stayed 0
independently of the actual check.
 2017-09-21 12:04:41 +01:00
Florin
0b7b83fd91 Fixed SIGSEGV problem when writing with ssl_write_real a buffer that is over MBEDTLS_SSL_MAX_CONTENT_LEN bytes 
Signed-off-by: Florin <petriuc.florin@gmail.com>
 2017-09-18 16:11:42 +01:00
Hanno Becker
2b187c4d5f Correct typo 2017-09-18 16:11:42 +01:00
Hanno Becker
9648f8b59c Add run-time check for handshake message size in ssl_write_record 2017-09-18 10:56:15 +01:00
Hanno Becker
d33f1ca34c Add run-time check for record content size in ssl_encrypt_buf 2017-09-18 10:56:14 +01:00
Andres Amaya Garcia
01692531c6 Document code silently discarding invalid records 2017-09-14 20:20:31 +01:00
Andres Amaya Garcia
2fad94b193 Dont send alert on invalid DTLS record type 
Do not send fatal alerts when receiving a record with an invalid header
while running DTLS as this is not compliant behaviour.
 2017-09-14 20:18:37 +01:00
Hanno Becker
d4a872ee67 Rename internal MBEDTLS_ENTROPY_HAVE_STRONG to ENTROPY_HAVE_STRONG 
This commit renames the test-only flag MBEDTLS_ENTROPY_HAVE_STRONG to ENTROPY_HAVE_STRONG to make it more transparent
that it's an internal flag, and also to content the testscript tests/scripts/check-names.pl which previously complained
about the macro occurring in a comment in `entropy.c` without being defined in a library file.
 2017-09-14 08:04:13 +01:00
Hanno Becker
45037ceac5 Add check for presence of relevant parameters in mbedtls_rsa_private 
If CRT is used, check for the presence N, P, Q, D, E, DP, DQ and QP. If CRT is
not used, check for N, P, Q, D, E only.
 2017-09-14 08:02:14 +01:00
Hanno Becker
81535d0011 Minor style and typo corrections 2017-09-14 07:51:54 +01:00
Hanno Becker
476986547b Omit version from X.509 v1 certificates 
The version field in an X.509 certificate is optional and defaults to v1, so it
may be omitted in this case.
 2017-09-14 07:51:54 +01:00
Hanno Becker
d7f3520360 Don't add extensions for X.509 non-v3 certificates 
This commit removes extension-writing code for X.509 non-v3 certificates from
mbedtls_x509write_crt_der. Previously, even if no extensions were present an
empty sequence would have been added.
 2017-09-14 07:51:54 +01:00
Hanno Becker
fc77144802 Fix extraction of signature-type from PK context instance 2017-09-14 07:51:54 +01:00
Hanno Becker
9be1926b69 Correct parsing checks in mbedtls_pk_parse_key 
Two code-paths in `mbedtls_pk_parse_key` returned success on a failure in `mbedtls_pk_setup`.
 2017-09-08 12:39:44 +01:00
Hanno Becker
66a0f83d58 Remove unreachable branches in pkparse.c 2017-09-08 12:39:21 +01:00
Hanno Becker
b8d1657148 Mention in-place decryption in pk_parse_key_pkcs8_encrypted_der 
Also fixes a typo.
 2017-09-07 15:29:01 +01:00
Hanno Becker
2aa80a706f Remove unnecessary cast 2017-09-07 15:28:45 +01:00
Ron Eldor
65112b15e6 Adress Hannos's comments 
Remove zeroizing buffer, as it was done already in PR #369
Check that buffer is not null by `!= NULL` statement
 2017-09-06 17:09:41 +03:00
Ron Eldor
9d84b4c102 update after Andres comments 
Update after Andres coments:
1. zeroize the buffer in `mbedtls_pem_read_buffer()` before freeing it
2. use `mbedtls_zeroize()` instead of `memset()`
 2017-09-05 17:17:31 +03:00
Ron Eldor
31162e4423 Set PEM buffer to zero before freeing it 
Set PEM buffer to zero before freeing it, to avoid private keys
being leaked to memory after releasing it.
 2017-09-05 15:34:35 +03:00
Ron Eldor
7268ca9500 remove redundant include 
Remove redunadnat include for platform.h which was acciddently pushed,
for debugging purposes
 2017-09-05 14:29:20 +03:00
Hanno Becker
9c6cb38ba8 Fix typo in pkparse.c 2017-09-05 10:08:01 +01:00
Hanno Becker
fab3569963 Use in-place decryption in pk_parse_pkcs8_encrypted_der 
The stack buffer used to hold the decrypted key in pk_parse_pkcs8_encrypted_der
was statically sized to 2048 bytes, which is not enough for DER encoded 4096bit
RSA keys.

This commit resolves the problem by performing the key-decryption in-place,
circumventing the introduction of another stack or heap copy of the key.

There are two situations where pk_parse_pkcs8_encrypted_der is invoked:
1. When processing a PEM-encoded encrypted key in mbedtls_pk_parse_key.
   This does not need adaption since the PEM context used to hold the decoded
   key is already constructed and owned by mbedtls_pk_parse_key.
2. When processing a DER-encoded encrypted key in mbedtls_pk_parse_key.
   In this case, mbedtls_pk_parse_key calls pk_parse_pkcs8_encrypted_der with
   the buffer provided by the user, which is declared const. The commit
   therefore adds a small code paths making a copy of the keybuffer before
   calling pk_parse_pkcs8_encrypted_der.
 2017-08-25 13:57:21 +01:00
Hanno Becker
771d30edac Add missing calls to mbedtls_pem_free in mbedtls_pk_parse 2017-08-25 13:57:21 +01:00
Hanno Becker
b269a8584a Change mbedtls_rsa_check_privkey to use new helper functions 2017-08-25 08:35:09 +01:00
Hanno Becker
d9431a7817 Minor comments improvement 2017-08-25 08:35:09 +01:00
Hanno Becker
d363799a9d Add mbedtls_rsa_validate_crt 
This commit adds the function mbedtls_rsa_validate_crt for validating a set of CRT parameters. The function
mbedtls_rsa_check_crt is simplified accordingly.
 2017-08-25 08:35:09 +01:00
Hanno Becker
d56d83a7f3 Remove double-checking code from rsa_deduce_moduli and rsa_complete 2017-08-25 08:35:08 +01:00
Hanno Becker
750e8b4596 Rename rsa_check_params->rsa_validate_params and change error codes 2017-08-25 08:34:55 +01:00