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Gilles Peskine 7cba859235 mbedtls_mpi_read_string: make an empty bignum for an empty string 
In mbedtls_mpi_read_string, if the string is empty, return an empty bignum
rather than a bignum with one limb with the value 0.

Both representations are correct, so this is not, in principle, a
user-visible change. The change does leak however through
mbedtls_mpi_write_string in base 16 (but not in other bases), as it writes a
bignum with 0 limbs as "" but a bignum with the value 0 and at least one
limb as "00".

This change makes it possible to construct an empty bignum through
mbedtls_mpi_read_string, which is especially useful to construct test
cases (a common use of mbedtls_mpi_read_string, as most formats use in
production encode numbers in binary, to be read with mbedtls_mpi_read_binary
or mbedtls_mpi_read_binary_le).

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-06-22 12:47:21 +02:00
..
.gitignore
Ignore generated source files that are no longer checked in
2021-05-20 10:37:22 +02:00
aes.c
Merge pull request #4469 from xiaoxiang781216/padlock
2021-05-28 11:06:40 +02:00
aesni.c
Move aesni.h to library
2021-03-10 12:52:37 +00:00
aesni.h
Move aesni.h to library
2021-03-10 12:52:37 +00:00
aria.c
ARIA: add missing context init/free
2021-05-25 09:23:10 +02:00
asn1parse.c
Add missing const attribute to asn1 api
2021-01-26 13:57:46 +01:00
asn1write.c
Add missing const attribute to asn1write api
2021-01-27 15:37:12 +01:00
base64.c
Code style fixups
2021-03-04 14:34:50 +00:00
bignum.c
mbedtls_mpi_read_string: make an empty bignum for an empty string
2021-06-22 12:47:21 +02:00
bn_mul.h
Move bn_mul.h to library/
2021-03-10 12:52:37 +00:00
camellia.c
CAMELLIA: add missing context init/free
2021-05-25 09:23:10 +02:00
ccm.c
Fix additional data length field check for CCM
2020-10-08 12:09:44 +02:00
chacha20.c
Update copyright notices to use Linux Foundation guidance
2020-08-19 10:35:41 +02:00
chachapoly.c
Update copyright notices to use Linux Foundation guidance
2020-08-19 10:35:41 +02:00
check_crypto_config.h
psa: config: Add CAMELLIA to the list of possible CMAC ciphers
2021-03-25 14:25:46 +01:00
cipher_wrap.c
Remove MD2, MD4, RC4, Blowfish and XTEA
2021-06-16 10:34:25 +02:00
cipher_wrap.h
Rename <pk/md/cipher>_internal.h to *_wrap.h
2021-03-10 12:52:37 +00:00
cipher.c
Merge pull request #4342 from gilles-peskine-arm/gcm-update-any-length
2021-05-20 15:08:55 +02:00
cmac.c
Allow skipping 3DES in CMAC self-test when ALT implemented
2021-03-02 10:18:08 +01:00
CMakeLists.txt
Remove MD2, MD4, RC4, Blowfish and XTEA
2021-06-16 10:34:25 +02:00
common.h
Fix typo
2021-05-27 14:39:53 +02:00
ctr_drbg.c
Rename the _ret() functions
2021-06-08 16:45:41 +02:00
debug.c
Add missing parentheses
2021-06-17 21:46:29 +02:00
des.c
Update copyright notices to use Linux Foundation guidance
2020-08-19 10:35:41 +02:00
dhm.c
Make RNG parameters mandatory in DHM functions
2021-06-17 09:38:38 +02:00
ecdh.c
Update copyright notices to use Linux Foundation guidance
2020-08-19 10:35:41 +02:00
ecdsa.c
avoid "maybe-uninitialized" and "free-nonheap-object" errors/warnings with gcc11
2021-05-19 11:31:37 -04:00
ecjpake.c
Make RNG parameters mandatory in ECP functions
2021-06-17 09:38:38 +02:00
ecp_curves.c
static initialize comb table
2021-06-01 10:02:13 +08:00
ecp_internal_alt.h
Rename library/ecp_alt.h to ecp_internal_alt.h
2021-06-15 00:10:37 +02:00
ecp_invasive.h
Move mbedtls_mpi_random to the bignum module
2021-06-03 18:10:04 +02:00
ecp.c
Merge pull request #4604 from gilles-peskine-arm/default-hashes-curves-3.0
2021-06-22 12:08:37 +02:00
entropy_poll.c
Move part of timing module out of the library
2021-06-15 15:47:44 +02:00
entropy_poll.h
Move part of timing module out of the library
2021-06-15 15:47:44 +02:00
entropy.c
Merge pull request #4640 from TRodziewicz/move_part_of_timing_module_out_of_the_library_and_to_test
2021-06-18 16:35:58 +01:00
gcm.c
Rework and reword the guarantees on output_size
2021-05-18 23:15:40 +02:00
hkdf.c
Update copyright notices to use Linux Foundation guidance
2020-08-19 10:35:41 +02:00
hmac_drbg.c
Rename the _ret() functions
2021-06-08 16:45:41 +02:00
Makefile
Remove MD2, MD4, RC4, Blowfish and XTEA
2021-06-16 10:34:25 +02:00
md5.c
Rename the _ret() functions
2021-06-08 16:45:41 +02:00
md_wrap.h
Remove MD2, MD4, RC4, Blowfish and XTEA
2021-06-16 10:34:25 +02:00
md.c
Remove MD2, MD4, RC4, Blowfish and XTEA
2021-06-16 10:34:25 +02:00
memory_buffer_alloc.c
Update copyright notices to use Linux Foundation guidance
2020-08-19 10:35:41 +02:00
mps_common.h
Capitalise MPS trace macros
2021-04-07 12:45:35 +01:00
mps_error.h
Fix Doxygen headers for MPS files
2021-03-29 14:20:18 +01:00
mps_reader.c
Capitalise MPS trace macros
2021-04-07 12:45:35 +01:00
mps_reader.h
Fix Doxygen headers for MPS files
2021-03-29 14:20:18 +01:00
mps_trace.c
Capitalise MPS trace macros
2021-04-07 12:45:35 +01:00
mps_trace.h
Capitalise MPS trace macros
2021-04-07 12:45:35 +01:00
net_sockets.c
Fix fd range for select on Windows
2021-06-20 23:14:36 +02:00
nist_kw.c
Fix null pointer arithmetic in error case
2021-06-01 11:22:56 +02:00
oid.c
Remove MD2, MD4, RC4, Blowfish and XTEA
2021-06-16 10:34:25 +02:00
padlock.c
Move padlock.h to library
2021-03-10 12:52:37 +00:00
padlock.h
Fix docs for mbedtls_padlock_has_support
2021-05-18 19:01:42 +01:00
pem.c
Rename the _ret() functions
2021-06-08 16:45:41 +02:00
pk_wrap.c
Add RNG parameter to check_pair functions
2021-06-17 09:38:38 +02:00
pk_wrap.h
Add RNG parameter to check_pair functions
2021-06-17 09:38:38 +02:00
pk.c
Add RNG parameter to check_pair functions
2021-06-17 09:38:38 +02:00
pkcs5.c
Apply MBEDTLS_ERROR_ADD to library
2021-04-15 11:19:47 +01:00
pkcs12.c
Remove MD2, MD4, RC4, Blowfish and XTEA
2021-06-16 10:34:25 +02:00
pkparse.c
Merge pull request #4588 from TRodziewicz/remove_MD2_MD4_RC4_Blowfish_and_XTEA
2021-06-22 09:27:41 +02:00
pkwrite.c
Merge branch 'development_3.0' into remove_depr_error_codes
2021-04-21 12:31:43 +02:00
platform_util.c
Fixes two _POSIX_C_SOURCE typos.
2020-11-13 09:20:18 +00:00
platform.c
Update copyright notices to use Linux Foundation guidance
2020-08-19 10:35:41 +02:00
poly1305.c
Update copyright notices to use Linux Foundation guidance
2020-08-19 10:35:41 +02:00
psa_crypto_aead.c
Update all uses of old AEAD output size macros
2021-04-15 17:32:06 +02:00
psa_crypto_aead.h
psa: aead: Move AEAD driver entry points to psa_crypto_aead.c
2021-04-07 16:03:31 +02:00
psa_crypto_cipher.c
Remove MD2, MD4, RC4, Blowfish and XTEA
2021-06-16 10:34:25 +02:00
psa_crypto_cipher.h
psa: cipher: Remove cipher_generate_iv driver entry point
2021-03-26 15:58:25 +01:00
psa_crypto_client.c
psa: Make sure MBEDTLS_PSA_CRYPTO_CLIENT is defined
2021-02-09 15:36:08 +01:00
psa_crypto_core.h
Update documentation
2021-05-13 11:19:01 +02:00
psa_crypto_driver_wrappers.c
Introduce MBEDTLS_PRIVATE macro.
2021-05-21 18:07:06 +02:00
psa_crypto_driver_wrappers.h
Dispatch sign/verify funtions through the driver interface
2021-05-13 11:18:57 +02:00
psa_crypto_ecp.c
Move mbedtls_md_info_from_psa into the mbedtls hash driver
2021-03-15 12:14:40 +01:00
psa_crypto_ecp.h
psa: Rework ECDSA sign/verify support in the transparent test driver
2021-02-18 15:45:12 +01:00
psa_crypto_hash.c
Remove MD2, MD4, RC4, Blowfish and XTEA
2021-06-16 10:34:25 +02:00
psa_crypto_hash.h
Merge branch 'development' into development_3.0
2021-04-19 10:51:59 +02:00
psa_crypto_invasive.h
Rework MAC algorithm / key type validation
2021-03-03 19:58:02 +01:00
psa_crypto_its.h
Update documentation
2020-11-25 13:10:50 +01:00
psa_crypto_mac.c
Merge pull request #4316 from gabor-mezei-arm/3258_implement_one-shot_MAC
2021-06-22 12:18:25 +02:00
psa_crypto_mac.h
Move is_sign and mac_size checking back to PSA core scope
2021-05-10 11:29:13 +02:00
psa_crypto_random_impl.h
Work around MSVC bug with duplicate static declarations
2021-02-16 18:55:05 +01:00
psa_crypto_rsa.c
Add RNG params to private key parsing
2021-06-17 09:38:38 +02:00
psa_crypto_rsa.h
psa: Add RSA sign/verify hash support to the transparent test driver
2021-02-18 15:45:06 +01:00
psa_crypto_se.c
Update copyright notices to use Linux Foundation guidance
2020-08-19 10:35:41 +02:00
psa_crypto_se.h
Update documentation
2020-11-25 13:10:50 +01:00
psa_crypto_service_integration.h
Update copyright notices to use Linux Foundation guidance
2020-08-19 10:35:41 +02:00
psa_crypto_slot_management.c
Remove MBEDTLS_CHECK_PARAMS option
2021-05-27 17:33:32 +02:00
psa_crypto_slot_management.h
psa: Fix error code when creating/registering a key with invalid id
2021-04-01 14:05:41 +02:00
psa_crypto_storage.c
Add missing common.h include.
2021-05-27 14:40:40 +02:00
psa_crypto_storage.h
Rename PSA_KEY_SLOT_COUNT to MBEDTLS_PSA_KEY_SLOT_COUNT
2021-02-15 14:26:44 +01:00
psa_crypto.c
Merge pull request #4316 from gabor-mezei-arm/3258_implement_one-shot_MAC
2021-06-22 12:18:25 +02:00
psa_its_file.c
Add missing common.h include.
2021-05-27 14:40:40 +02:00
ripemd160.c
Rename the _ret() functions
2021-06-08 16:45:41 +02:00
rsa_alt_helpers.c
Rename rsa_internal.* to rsa_alt_helpers.*
2021-03-10 12:52:37 +00:00
rsa_alt_helpers.h
Rename rsa_internal.* to rsa_alt_helpers.*
2021-03-10 12:52:37 +00:00
rsa.c
Check for mandatory RNG parameters in RSA private
2021-06-17 09:37:55 +02:00
sha1.c
Rename the _ret() functions
2021-06-08 16:45:41 +02:00
sha256.c
Rename the _ret() functions
2021-06-08 16:45:41 +02:00
sha512.c
Rename the _ret() functions
2021-06-08 16:45:41 +02:00
ssl_cache.c
Fix search for outdated entries in SSL session cache
2021-05-14 14:55:15 +01:00
ssl_ciphersuites.c
Code review fixes
2021-06-18 12:59:38 +02:00
ssl_cli.c
Removes truncated HMAC code from ssl_X.c
2021-06-16 16:19:53 +01:00
ssl_cookie.c
Remove the TLS 1.0 and 1.1 support
2021-05-24 12:45:20 +02:00
ssl_invasive.h
Merge pull request #736 from mpg/cf-varpos-copy-dev-restricted
2020-08-25 14:35:55 +01:00
ssl_misc.h
Merge pull request #4382 from hanno-arm/max_record_payload_api
2021-06-08 11:07:27 +02:00
ssl_msg.c
Merge pull request #4522 from mpg/fix-ssl-cf-hmac-alt-dev
2021-06-07 20:53:33 +02:00
ssl_srv.c
Removes truncated HMAC code from ssl_X.c
2021-06-16 16:19:53 +01:00
ssl_ticket.c
Rename ssl_internal.h to ssl_misc.h
2021-03-10 12:52:37 +00:00
ssl_tls13_keys.c
Remove misleading comment in TLS 1.3 key schedule code
2021-05-31 19:40:45 +01:00
ssl_tls13_keys.h
Fix Doxygen for TLS 1.3 PSK binder helper
2021-05-26 04:47:29 +01:00
ssl_tls.c
Merge pull request #4604 from gilles-peskine-arm/default-hashes-curves-3.0
2021-06-22 12:08:37 +02:00
threading.c
Explain the usage of is_valid in pthread mutexes
2021-02-22 19:24:03 +01:00
timing.c
Removing global variable and moving variant function comment block
2021-06-18 13:22:57 +02:00
version.c
Update copyright notices to use Linux Foundation guidance
2020-08-19 10:35:41 +02:00
x509_create.c
Update copyright notices to use Linux Foundation guidance
2020-08-19 10:35:41 +02:00
x509_crl.c
Merge pull request #3777 from hanno-arm/x509-info-optimization_rebased
2021-04-28 17:31:55 +01:00
x509_crt.c
Remove secp256k1 from the default X.509 and TLS profiles
2021-06-17 23:17:52 +02:00
x509_csr.c
Merge pull request #3777 from hanno-arm/x509-info-optimization_rebased
2021-04-28 17:31:55 +01:00
x509.c
Merge pull request #3777 from hanno-arm/x509-info-optimization_rebased
2021-04-28 17:31:55 +01:00
x509write_crt.c
Rename the _ret() functions
2021-06-08 16:45:41 +02:00
x509write_csr.c
Expose flag for critical extensions
2021-05-27 14:27:43 +02:00