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Add documentation warnings for weak algorithms

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MD2, MD4, MD5, DES and SHA-1 are considered weak and their use
constitutes a security risk. If possible, we recommend avoiding
dependencies on them, and considering stronger message digests and
ciphers instead.
This commit is contained in:
Hanno Becker 2017-09-25 14:53:51 +01:00 committed by Jaeden Amero
parent 3b8fbaab87
commit bbca8c5d3c
9 changed files with 482 additions and 5 deletions
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33
include/mbedtls/arc4.h
View file

@ -2,6 +2,9 @@
* \file arc4.h
*
* \brief The ARCFOUR stream cipher
*
* \warning ARC4 is considered a weak cipher and its use constitutes a
* security risk. We recommend considering stronger ciphers instead.
*/
/*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
@ -20,6 +23,7 @@
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*
*/
#ifndef MBEDTLS_ARC4_H
#define MBEDTLS_ARC4_H
@ -44,6 +48,10 @@ extern "C" {
/**
* \brief ARC4 context structure
*
* \warning ARC4 is considered a weak cipher and its use constitutes a
* security risk. We recommend considering stronger ciphers instead.
*
*/
typedef struct
{
@ -57,6 +65,11 @@ mbedtls_arc4_context;
* \brief Initialize ARC4 context
*
* \param ctx ARC4 context to be initialized
*
* \warning ARC4 is considered a weak cipher and its use constitutes a
* security risk. We recommend considering stronger ciphers
* instead.
*
*/
void mbedtls_arc4_init( mbedtls_arc4_context *ctx );
@ -64,6 +77,11 @@ void mbedtls_arc4_init( mbedtls_arc4_context *ctx );
* \brief Clear ARC4 context
*
* \param ctx ARC4 context to be cleared
*
* \warning ARC4 is considered a weak cipher and its use constitutes a
* security risk. We recommend considering stronger ciphers
* instead.
*
*/
void mbedtls_arc4_free( mbedtls_arc4_context *ctx );
@ -73,6 +91,11 @@ void mbedtls_arc4_free( mbedtls_arc4_context *ctx );
* \param ctx ARC4 context to be setup
* \param key the secret key
* \param keylen length of the key, in bytes
*
* \warning ARC4 is considered a weak cipher and its use constitutes a
* security risk. We recommend considering stronger ciphers
* instead.
*
*/
void mbedtls_arc4_setup( mbedtls_arc4_context *ctx, const unsigned char *key,
unsigned int keylen );
@ -86,6 +109,11 @@ void mbedtls_arc4_setup( mbedtls_arc4_context *ctx, const unsigned char *key,
* \param output buffer for the output data
*
* \return 0 if successful
*
* \warning ARC4 is considered a weak cipher and its use constitutes a
* security risk. We recommend considering stronger ciphers
* instead.
*
*/
int mbedtls_arc4_crypt( mbedtls_arc4_context *ctx, size_t length, const unsigned char *input,
unsigned char *output );
@ -106,6 +134,11 @@ extern "C" {
* \brief Checkup routine
*
* \return 0 if successful, or 1 if the test failed
*
* \warning ARC4 is considered a weak cipher and its use constitutes a
* security risk. We recommend considering stronger ciphers
* instead.
*
*/
int mbedtls_arc4_self_test( int verbose );

14
include/mbedtls/cipher.h
View file

@ -68,6 +68,13 @@
extern "C" {
#endif
/**
* \brief An enumeration of supported ciphers.
*
* \warning ARC4 and DES are considered weak ciphers and their use
* constitutes a security risk. We recommend considering stronger
* ciphers instead.
*/
typedef enum {
MBEDTLS_CIPHER_ID_NONE = 0,
MBEDTLS_CIPHER_ID_NULL,
@ -79,6 +86,13 @@ typedef enum {
MBEDTLS_CIPHER_ID_ARC4,
} mbedtls_cipher_id_t;
/**
* \brief An enumeration of supported (cipher, mode) pairs.
*
* \warning ARC4 and DES are considered weak ciphers and their use
* constitutes a security risk. We recommend considering stronger
* ciphers instead.
*/
typedef enum {
MBEDTLS_CIPHER_NONE = 0,
MBEDTLS_CIPHER_NULL,

64
include/mbedtls/config.h
View file

@ -262,6 +262,12 @@
*
* Uncomment a macro to enable alternate implementation of the corresponding
* module.
*
* \warning MD2, MD4, MD5, ARC4, DES and SHA-1 are considered weak and their
* use constitutes a security risk. If possible, we recommend
* avoiding dependencies on them, and considering stronger message
* digests and ciphers instead.
*
*/
//#define MBEDTLS_AES_ALT
//#define MBEDTLS_ARC4_ALT
@ -321,6 +327,12 @@
*
* Uncomment a macro to enable alternate implementation of the corresponding
* function.
*
* \warning MD2, MD4, MD5, DES and SHA-1 are considered weak and their use
* constitutes a security risk. If possible, we recommend avoiding
* dependencies on them, and considering stronger message digests
* and ciphers instead.
*
*/
//#define MBEDTLS_MD2_PROCESS_ALT
//#define MBEDTLS_MD4_PROCESS_ALT
@ -525,6 +537,9 @@
* MBEDTLS_TLS_DHE_RSA_WITH_DES_CBC_SHA
*
* Uncomment this macro to enable weak ciphersuites
*
* \warning DES is considered a weak cipher and its use constitutes a
* security risk. We recommend considering stronger ciphers instead.
*/
//#define MBEDTLS_ENABLE_WEAK_CIPHERSUITES
@ -1615,6 +1630,11 @@
* MBEDTLS_TLS_RSA_WITH_RC4_128_MD5
* MBEDTLS_TLS_RSA_PSK_WITH_RC4_128_SHA
* MBEDTLS_TLS_PSK_WITH_RC4_128_SHA
*
* \warning ARC4 is considered a weak cipher and its use constitutes a
* security risk. If possible, we recommend avoidng dependencies on
* it, and considering stronger ciphers instead.
*
*/
#define MBEDTLS_ARC4_C
@ -1841,6 +1861,9 @@
* MBEDTLS_TLS_PSK_WITH_3DES_EDE_CBC_SHA
*
* PEM_PARSE uses DES/3DES for decrypting encrypted keys.
*
* \warning DES is considered a weak cipher and its use constitutes a
* security risk. We recommend considering stronger ciphers instead.
*/
#define MBEDTLS_DES_C
@ -2020,6 +2043,11 @@
* Caller:
*
* Uncomment to enable support for (rare) MD2-signed X.509 certs.
*
* \warning MD2 is considered a weak message digest and its use constitutes a
* security risk. If possible, we recommend avoiding dependencies on
* it, and considering stronger message digests instead.
*
*/
//#define MBEDTLS_MD2_C
@ -2032,6 +2060,11 @@
* Caller:
*
* Uncomment to enable support for (rare) MD4-signed X.509 certs.
*
* \warning MD4 is considered a weak message digest and its use constitutes a
* security risk. If possible, we recommend avoiding dependencies on
* it, and considering stronger message digests instead.
*
*/
//#define MBEDTLS_MD4_C
@ -2045,8 +2078,15 @@
* library/pem.c
* library/ssl_tls.c
*
* This module is required for SSL/TLS and X.509.
* PEM_PARSE uses MD5 for decrypting encrypted keys.
* This module is required for SSL/TLS up to version 1.1, and for TLS 1.2
* depending on the handshake parameters. Further, it is used for checking
* MD5-signed certificates, and for PBKDF1 when decrypting PEM-encoded
* encrypted keys.
*
* \warning MD5 is considered a weak message digest and its use constitutes a
* security risk. If possible, we recommend avoiding dependencies on
* it, and considering stronger message digests instead.
*
*/
#define MBEDTLS_MD5_C
@ -2309,6 +2349,11 @@
*
* This module is required for SSL/TLS up to version 1.1, for TLS 1.2
* depending on the handshake parameters, and for SHA1-signed certificates.
*
* \warning SHA-1 is considered a weak message digest and its use constitutes
* a security risk. If possible, we recommend avoiding dependencies
* on it, and considering stronger message digests instead.
*
*/
#define MBEDTLS_SHA1_C
@ -2697,8 +2742,13 @@
* Allow SHA-1 in the default TLS configuration for certificate signing.
* Without this build-time option, SHA-1 support must be activated explicitly
* through mbedtls_ssl_conf_cert_profile. Turning on this option is not
* recommended because of it is possible to generte SHA-1 collisions, however
* recommended because of it is possible to generate SHA-1 collisions, however
* this may be safe for legacy infrastructure where additional controls apply.
*
* \warning SHA-1 is considered a weak message digest and its use constitutes
* a security risk. If possible, we recommend avoiding dependencies
* on it, and considering stronger message digests instead.
*
*/
// #define MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_CERTIFICATES
@ -2709,7 +2759,13 @@
* The use of SHA-1 in TLS <= 1.1 and in HMAC-SHA-1 is always allowed by
* default. At the time of writing, there is no practical attack on the use
* of SHA-1 in handshake signatures, hence this option is turned on by default
* for compatibility with existing peers.
* to preserve compatibility with existing peers, but the general
* warning applies nonetheless:
*
* \warning SHA-1 is considered a weak message digest and its use constitutes
* a security risk. If possible, we recommend avoiding dependencies
* on it, and considering stronger message digests instead.
*
*/
#define MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_KEY_EXCHANGE

49
include/mbedtls/des.h
View file

@ -2,6 +2,10 @@
* \file des.h
*
* \brief DES block cipher
*
* \warning DES is considered a weak cipher and its use constitutes a
* security risk. We recommend considering stronger ciphers
* instead.
*/
/*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
@ -20,6 +24,7 @@
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*
*/
#ifndef MBEDTLS_DES_H
#define MBEDTLS_DES_H
@ -51,6 +56,10 @@ extern "C" {
/**
* \brief DES context structure
*
* \warning DES is considered a weak cipher and its use constitutes a
* security risk. We recommend considering stronger ciphers
* instead.
*/
typedef struct
{
@ -71,6 +80,10 @@ mbedtls_des3_context;
* \brief Initialize DES context
*
* \param ctx DES context to be initialized
*
* \warning DES is considered a weak cipher and its use constitutes a
* security risk. We recommend considering stronger ciphers
* instead.
*/
void mbedtls_des_init( mbedtls_des_context *ctx );
@ -78,6 +91,10 @@ void mbedtls_des_init( mbedtls_des_context *ctx );
* \brief Clear DES context
*
* \param ctx DES context to be cleared
*
* \warning DES is considered a weak cipher and its use constitutes a
* security risk. We recommend considering stronger ciphers
* instead.
*/
void mbedtls_des_free( mbedtls_des_context *ctx );
@ -102,6 +119,10 @@ void mbedtls_des3_free( mbedtls_des3_context *ctx );
* a parity bit to allow verification.
*
* \param key 8-byte secret key
*
* \warning DES is considered a weak cipher and its use constitutes a
* security risk. We recommend considering stronger ciphers
* instead.
*/
void mbedtls_des_key_set_parity( unsigned char key[MBEDTLS_DES_KEY_SIZE] );
@ -114,6 +135,10 @@ void mbedtls_des_key_set_parity( unsigned char key[MBEDTLS_DES_KEY_SIZE] );
* \param key 8-byte secret key
*
* \return 0 is parity was ok, 1 if parity was not correct.
*
* \warning DES is considered a weak cipher and its use constitutes a
* security risk. We recommend considering stronger ciphers
* instead.
*/
int mbedtls_des_key_check_key_parity( const unsigned char key[MBEDTLS_DES_KEY_SIZE] );
@ -123,6 +148,10 @@ int mbedtls_des_key_check_key_parity( const unsigned char key[MBEDTLS_DES_KEY_SI
* \param key 8-byte secret key
*
* \return 0 if no weak key was found, 1 if a weak key was identified.
*
* \warning DES is considered a weak cipher and its use constitutes a
* security risk. We recommend considering stronger ciphers
* instead.
*/
int mbedtls_des_key_check_weak( const unsigned char key[MBEDTLS_DES_KEY_SIZE] );
@ -133,6 +162,10 @@ int mbedtls_des_key_check_weak( const unsigned char key[MBEDTLS_DES_KEY_SIZE] );
* \param key 8-byte secret key
*
* \return 0
*
* \warning DES is considered a weak cipher and its use constitutes a
* security risk. We recommend considering stronger ciphers
* instead.
*/
int mbedtls_des_setkey_enc( mbedtls_des_context *ctx, const unsigned char key[MBEDTLS_DES_KEY_SIZE] );
@ -143,6 +176,10 @@ int mbedtls_des_setkey_enc( mbedtls_des_context *ctx, const unsigned char key[MB
* \param key 8-byte secret key
*
* \return 0
*
* \warning DES is considered a weak cipher and its use constitutes a
* security risk. We recommend considering stronger ciphers
* instead.
*/
int mbedtls_des_setkey_dec( mbedtls_des_context *ctx, const unsigned char key[MBEDTLS_DES_KEY_SIZE] );
@ -198,6 +235,10 @@ int mbedtls_des3_set3key_dec( mbedtls_des3_context *ctx,
* \param output 64-bit output block
*
* \return 0 if successful
*
* \warning DES is considered a weak cipher and its use constitutes a
* security risk. We recommend considering stronger ciphers
* instead.
*/
int mbedtls_des_crypt_ecb( mbedtls_des_context *ctx,
const unsigned char input[8],
@ -221,6 +262,10 @@ int mbedtls_des_crypt_ecb( mbedtls_des_context *ctx,
* \param iv initialization vector (updated after use)
* \param input buffer holding the input data
* \param output buffer holding the output data
*
* \warning DES is considered a weak cipher and its use constitutes a
* security risk. We recommend considering stronger ciphers
* instead.
*/
int mbedtls_des_crypt_cbc( mbedtls_des_context *ctx,
int mode,
@ -279,6 +324,10 @@ int mbedtls_des3_crypt_cbc( mbedtls_des3_context *ctx,
*
* \param SK Round keys
* \param key Base key
*
* \warning DES is considered a weak cipher and its use constitutes a
* security risk. We recommend considering stronger ciphers
* instead.
*/
void mbedtls_des_setkey( uint32_t SK[32],
const unsigned char key[MBEDTLS_DES_KEY_SIZE] );

8
include/mbedtls/md.h
View file

@ -44,6 +44,14 @@
extern "C" {
#endif
/**
* \brief Enumeration of supported message digests
*
* \warning MD2, MD4, MD5 and SHA-1 are considered weak message digests and
* their use constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
typedef enum {
MBEDTLS_MD_NONE=0,
MBEDTLS_MD_MD2,

80
include/mbedtls/md2.h
View file

@ -2,6 +2,10 @@
* \file md2.h
*
* \brief MD2 message digest algorithm (hash function)
*
* \warning MD2 is considered a weak message digest and its use constitutes a
* security risk. We recommend considering stronger message digests
* instead.
*/
/*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
@ -20,6 +24,7 @@
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*
*/
#ifndef MBEDTLS_MD2_H
#define MBEDTLS_MD2_H
@ -49,6 +54,11 @@ extern "C" {
/**
* \brief MD2 context structure
*
* \warning MD2 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
typedef struct
{
@ -63,6 +73,11 @@ mbedtls_md2_context;
* \brief Initialize MD2 context
*
* \param ctx MD2 context to be initialized
*
* \warning MD2 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
void mbedtls_md2_init( mbedtls_md2_context *ctx );
@ -70,6 +85,11 @@ void mbedtls_md2_init( mbedtls_md2_context *ctx );
* \brief Clear MD2 context
*
* \param ctx MD2 context to be cleared
*
* \warning MD2 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
void mbedtls_md2_free( mbedtls_md2_context *ctx );
@ -78,6 +98,11 @@ void mbedtls_md2_free( mbedtls_md2_context *ctx );
*
* \param dst The destination context
* \param src The context to be cloned
*
* \warning MD2 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
void mbedtls_md2_clone( mbedtls_md2_context *dst,
const mbedtls_md2_context *src );
@ -88,6 +113,11 @@ void mbedtls_md2_clone( mbedtls_md2_context *dst,
* \param ctx context to be initialized
*
* \return 0 if successful
*
* \warning MD2 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
int mbedtls_md2_starts_ret( mbedtls_md2_context *ctx );
@ -99,6 +129,11 @@ int mbedtls_md2_starts_ret( mbedtls_md2_context *ctx );
* \param ilen length of the input data
*
* \return 0 if successful
*
* \warning MD2 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
int mbedtls_md2_update_ret( mbedtls_md2_context *ctx,
const unsigned char *input,
@ -111,6 +146,11 @@ int mbedtls_md2_update_ret( mbedtls_md2_context *ctx,
* \param output MD2 checksum result
*
* \return 0 if successful
*
* \warning MD2 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
int mbedtls_md2_finish_ret( mbedtls_md2_context *ctx,
unsigned char output[16] );
@ -121,6 +161,11 @@ int mbedtls_md2_finish_ret( mbedtls_md2_context *ctx,
* \param ctx MD2 context
*
* \return 0 if successful
*
* \warning MD2 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
int mbedtls_internal_md2_process( mbedtls_md2_context *ctx );
@ -136,6 +181,11 @@ int mbedtls_internal_md2_process( mbedtls_md2_context *ctx );
* \deprecated Superseded by mbedtls_md2_starts_ret() in 2.7.0
*
* \param ctx context to be initialized
*
* \warning MD2 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
MBEDTLS_DEPRECATED static inline void mbedtls_md2_starts(
mbedtls_md2_context *ctx )
@ -151,6 +201,11 @@ MBEDTLS_DEPRECATED static inline void mbedtls_md2_starts(
* \param ctx MD2 context
* \param input buffer holding the data
* \param ilen length of the input data
*
* \warning MD2 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
MBEDTLS_DEPRECATED static inline void mbedtls_md2_update(
mbedtls_md2_context *ctx,
@ -167,6 +222,11 @@ MBEDTLS_DEPRECATED static inline void mbedtls_md2_update(
*
* \param ctx MD2 context
* \param output MD2 checksum result
*
* \warning MD2 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
MBEDTLS_DEPRECATED static inline void mbedtls_md2_finish(
mbedtls_md2_context *ctx,
@ -181,6 +241,11 @@ MBEDTLS_DEPRECATED static inline void mbedtls_md2_finish(
* \deprecated Superseded by mbedtls_internal_md2_process() in 2.7.0
*
* \param ctx MD2 context
*
* \warning MD2 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
MBEDTLS_DEPRECATED static inline void mbedtls_md2_process(
mbedtls_md2_context *ctx )
@ -209,6 +274,11 @@ extern "C" {
* \param input buffer holding the data
* \param ilen length of the input data
* \param output MD2 checksum result
*
* \warning MD2 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
int mbedtls_md2_ret( const unsigned char *input,
size_t ilen,
@ -228,6 +298,11 @@ int mbedtls_md2_ret( const unsigned char *input,
* \param input buffer holding the data
* \param ilen length of the input data
* \param output MD2 checksum result
*
* \warning MD2 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
MBEDTLS_DEPRECATED static inline void mbedtls_md2( const unsigned char *input,
size_t ilen,
@ -243,6 +318,11 @@ MBEDTLS_DEPRECATED static inline void mbedtls_md2( const unsigned char *input,
* \brief Checkup routine
*
* \return 0 if successful, or 1 if the test failed
*
* \warning MD2 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
int mbedtls_md2_self_test( int verbose );

79
include/mbedtls/md4.h
View file

@ -2,6 +2,10 @@
* \file md4.h
*
* \brief MD4 message digest algorithm (hash function)
*
* \warning MD4 is considered a weak message digest and its use constitutes a
* security risk. We recommend considering stronger message digests
* instead.
*/
/*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
@ -20,6 +24,7 @@
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*
*/
#ifndef MBEDTLS_MD4_H
#define MBEDTLS_MD4_H
@ -50,6 +55,11 @@ extern "C" {
/**
* \brief MD4 context structure
*
* \warning MD4 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
typedef struct
{
@ -63,6 +73,11 @@ mbedtls_md4_context;
* \brief Initialize MD4 context
*
* \param ctx MD4 context to be initialized
*
* \warning MD4 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
void mbedtls_md4_init( mbedtls_md4_context *ctx );
@ -70,6 +85,11 @@ void mbedtls_md4_init( mbedtls_md4_context *ctx );
* \brief Clear MD4 context
*
* \param ctx MD4 context to be cleared
*
* \warning MD4 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
void mbedtls_md4_free( mbedtls_md4_context *ctx );
@ -78,6 +98,11 @@ void mbedtls_md4_free( mbedtls_md4_context *ctx );
*
* \param dst The destination context
* \param src The context to be cloned
*
* \warning MD4 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
void mbedtls_md4_clone( mbedtls_md4_context *dst,
const mbedtls_md4_context *src );
@ -88,6 +113,10 @@ void mbedtls_md4_clone( mbedtls_md4_context *dst,
* \param ctx context to be initialized
*
* \return 0 if successful
*
* \warning MD4 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*/
int mbedtls_md4_starts_ret( mbedtls_md4_context *ctx );
@ -99,6 +128,11 @@ int mbedtls_md4_starts_ret( mbedtls_md4_context *ctx );
* \param ilen length of the input data
*
* \return 0 if successful
*
* \warning MD4 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
int mbedtls_md4_update_ret( mbedtls_md4_context *ctx,
const unsigned char *input,
@ -111,6 +145,11 @@ int mbedtls_md4_update_ret( mbedtls_md4_context *ctx,
* \param output MD4 checksum result
*
* \return 0 if successful
*
* \warning MD4 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
int mbedtls_md4_finish_ret( mbedtls_md4_context *ctx,
unsigned char output[16] );
@ -122,6 +161,11 @@ int mbedtls_md4_finish_ret( mbedtls_md4_context *ctx,
* \param data buffer holding one block of data
*
* \return 0 if successful
*
* \warning MD4 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
int mbedtls_internal_md4_process( mbedtls_md4_context *ctx,
const unsigned char data[64] );
@ -138,6 +182,11 @@ int mbedtls_internal_md4_process( mbedtls_md4_context *ctx,
* \deprecated Superseded by mbedtls_md4_starts_ret() in 2.7.0
*
* \param ctx context to be initialized
*
* \warning MD4 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
MBEDTLS_DEPRECATED static inline void mbedtls_md4_starts(
mbedtls_md4_context *ctx )
@ -153,6 +202,11 @@ MBEDTLS_DEPRECATED static inline void mbedtls_md4_starts(
* \param ctx MD4 context
* \param input buffer holding the data
* \param ilen length of the input data
*
* \warning MD4 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
MBEDTLS_DEPRECATED static inline void mbedtls_md4_update(
mbedtls_md4_context *ctx,
@ -169,6 +223,11 @@ MBEDTLS_DEPRECATED static inline void mbedtls_md4_update(
*
* \param ctx MD4 context
* \param output MD4 checksum result
*
* \warning MD4 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
MBEDTLS_DEPRECATED static inline void mbedtls_md4_finish(
mbedtls_md4_context *ctx,
@ -184,6 +243,11 @@ MBEDTLS_DEPRECATED static inline void mbedtls_md4_finish(
*
* \param ctx MD4 context
* \param data buffer holding one block of data
*
* \warning MD4 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
MBEDTLS_DEPRECATED static inline void mbedtls_md4_process(
mbedtls_md4_context *ctx,
@ -215,6 +279,11 @@ extern "C" {
* \param output MD4 checksum result
*
* \return 0 if successful
*
* \warning MD4 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
int mbedtls_md4_ret( const unsigned char *input,
size_t ilen,
@ -234,6 +303,11 @@ int mbedtls_md4_ret( const unsigned char *input,
* \param input buffer holding the data
* \param ilen length of the input data
* \param output MD4 checksum result
*
* \warning MD4 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
MBEDTLS_DEPRECATED static inline void mbedtls_md4( const unsigned char *input,
size_t ilen,
@ -249,6 +323,11 @@ MBEDTLS_DEPRECATED static inline void mbedtls_md4( const unsigned char *input,
* \brief Checkup routine
*
* \return 0 if successful, or 1 if the test failed
*
* \warning MD4 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
int mbedtls_md4_self_test( int verbose );

79
include/mbedtls/md5.h
View file

@ -2,6 +2,10 @@
* \file md5.h
*
* \brief MD5 message digest algorithm (hash function)
*
* \warning MD5 is considered a weak message digest and its use constitutes a
* security risk. We recommend considering stronger message
* digests instead.
*/
/*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
@ -50,6 +54,11 @@ extern "C" {
/**
* \brief MD5 context structure
*
* \warning MD5 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
typedef struct
{
@ -63,6 +72,11 @@ mbedtls_md5_context;
* \brief Initialize MD5 context
*
* \param ctx MD5 context to be initialized
*
* \warning MD5 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
void mbedtls_md5_init( mbedtls_md5_context *ctx );
@ -70,6 +84,11 @@ void mbedtls_md5_init( mbedtls_md5_context *ctx );
* \brief Clear MD5 context
*
* \param ctx MD5 context to be cleared
*
* \warning MD5 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
void mbedtls_md5_free( mbedtls_md5_context *ctx );
@ -78,6 +97,11 @@ void mbedtls_md5_free( mbedtls_md5_context *ctx );
*
* \param dst The destination context
* \param src The context to be cloned
*
* \warning MD5 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
void mbedtls_md5_clone( mbedtls_md5_context *dst,
const mbedtls_md5_context *src );
@ -88,6 +112,11 @@ void mbedtls_md5_clone( mbedtls_md5_context *dst,
* \param ctx context to be initialized
*
* \return 0 if successful
*
* \warning MD5 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
int mbedtls_md5_starts_ret( mbedtls_md5_context *ctx );
@ -99,6 +128,11 @@ int mbedtls_md5_starts_ret( mbedtls_md5_context *ctx );
* \param ilen length of the input data
*
* \return 0 if successful
*
* \warning MD5 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
int mbedtls_md5_update_ret( mbedtls_md5_context *ctx,
const unsigned char *input,
@ -111,6 +145,11 @@ int mbedtls_md5_update_ret( mbedtls_md5_context *ctx,
* \param output MD5 checksum result
*
* \return 0 if successful
*
* \warning MD5 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
int mbedtls_md5_finish_ret( mbedtls_md5_context *ctx,
unsigned char output[16] );
@ -122,6 +161,11 @@ int mbedtls_md5_finish_ret( mbedtls_md5_context *ctx,
* \param data buffer holding one block of data
*
* \return 0 if successful
*
* \warning MD5 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
int mbedtls_internal_md5_process( mbedtls_md5_context *ctx,
const unsigned char data[64] );
@ -138,6 +182,11 @@ int mbedtls_internal_md5_process( mbedtls_md5_context *ctx,
* \deprecated Superseded by mbedtls_md5_starts_ret() in 2.7.0
*
* \param ctx context to be initialized
*
* \warning MD5 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
MBEDTLS_DEPRECATED static inline void mbedtls_md5_starts(
mbedtls_md5_context *ctx )
@ -153,6 +202,11 @@ MBEDTLS_DEPRECATED static inline void mbedtls_md5_starts(
* \param ctx MD5 context
* \param input buffer holding the data
* \param ilen length of the input data
*
* \warning MD5 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
MBEDTLS_DEPRECATED static inline void mbedtls_md5_update(
mbedtls_md5_context *ctx,
@ -169,6 +223,11 @@ MBEDTLS_DEPRECATED static inline void mbedtls_md5_update(
*
* \param ctx MD5 context
* \param output MD5 checksum result
*
* \warning MD5 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
MBEDTLS_DEPRECATED static inline void mbedtls_md5_finish(
mbedtls_md5_context *ctx,
@ -184,6 +243,11 @@ MBEDTLS_DEPRECATED static inline void mbedtls_md5_finish(
*
* \param ctx MD5 context
* \param data buffer holding one block of data
*
* \warning MD5 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
MBEDTLS_DEPRECATED static inline void mbedtls_md5_process(
mbedtls_md5_context *ctx,
@ -215,6 +279,11 @@ extern "C" {
* \param output MD5 checksum result
*
* \return 0 if successful
*
* \warning MD5 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
int mbedtls_md5_ret( const unsigned char *input,
size_t ilen,
@ -234,6 +303,11 @@ int mbedtls_md5_ret( const unsigned char *input,
* \param input buffer holding the data
* \param ilen length of the input data
* \param output MD5 checksum result
*
* \warning MD5 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
MBEDTLS_DEPRECATED static inline void mbedtls_md5( const unsigned char *input,
size_t ilen,
@ -249,6 +323,11 @@ MBEDTLS_DEPRECATED static inline void mbedtls_md5( const unsigned char *input,
* \brief Checkup routine
*
* \return 0 if successful, or 1 if the test failed
*
* \warning MD5 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
int mbedtls_md5_self_test( int verbose );

79
include/mbedtls/sha1.h
View file

@ -2,6 +2,10 @@
* \file sha1.h
*
* \brief SHA-1 cryptographic hash function
*
* \warning SHA-1 is considered a weak message digest and its use constitutes
* a security risk. We recommend considering stronger message
* digests instead.
*/
/*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
@ -50,6 +54,11 @@ extern "C" {
/**
* \brief SHA-1 context structure
*
* \warning SHA-1 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
typedef struct
{
@ -63,6 +72,11 @@ mbedtls_sha1_context;
* \brief Initialize SHA-1 context
*
* \param ctx SHA-1 context to be initialized
*
* \warning SHA-1 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
void mbedtls_sha1_init( mbedtls_sha1_context *ctx );
@ -70,6 +84,11 @@ void mbedtls_sha1_init( mbedtls_sha1_context *ctx );
* \brief Clear SHA-1 context
*
* \param ctx SHA-1 context to be cleared
*
* \warning SHA-1 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
void mbedtls_sha1_free( mbedtls_sha1_context *ctx );
@ -78,6 +97,11 @@ void mbedtls_sha1_free( mbedtls_sha1_context *ctx );
*
* \param dst The destination context
* \param src The context to be cloned
*
* \warning SHA-1 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
void mbedtls_sha1_clone( mbedtls_sha1_context *dst,
const mbedtls_sha1_context *src );
@ -88,6 +112,11 @@ void mbedtls_sha1_clone( mbedtls_sha1_context *dst,
* \param ctx context to be initialized
*
* \return 0 if successful
*
* \warning SHA-1 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
int mbedtls_sha1_starts_ret( mbedtls_sha1_context *ctx );
@ -99,6 +128,11 @@ int mbedtls_sha1_starts_ret( mbedtls_sha1_context *ctx );
* \param ilen length of the input data
*
* \return 0 if successful
*
* \warning SHA-1 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
int mbedtls_sha1_update_ret( mbedtls_sha1_context *ctx,
const unsigned char *input,
@ -111,6 +145,11 @@ int mbedtls_sha1_update_ret( mbedtls_sha1_context *ctx,
* \param output SHA-1 checksum result
*
* \return 0 if successful
*
* \warning SHA-1 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
int mbedtls_sha1_finish_ret( mbedtls_sha1_context *ctx,
unsigned char output[20] );
@ -122,6 +161,11 @@ int mbedtls_sha1_finish_ret( mbedtls_sha1_context *ctx,
* \param data buffer holding one block of data
*
* \return 0 if successful
*
* \warning SHA-1 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
int mbedtls_internal_sha1_process( mbedtls_sha1_context *ctx,
const unsigned char data[64] );
@ -138,6 +182,11 @@ int mbedtls_internal_sha1_process( mbedtls_sha1_context *ctx,
* \deprecated Superseded by mbedtls_sha1_starts_ret() in 2.7.0
*
* \param ctx context to be initialized
*
* \warning SHA-1 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
MBEDTLS_DEPRECATED static inline void mbedtls_sha1_starts(
mbedtls_sha1_context *ctx )
@ -153,6 +202,11 @@ MBEDTLS_DEPRECATED static inline void mbedtls_sha1_starts(
* \param ctx SHA-1 context
* \param input buffer holding the data
* \param ilen length of the input data
*
* \warning SHA-1 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
MBEDTLS_DEPRECATED static inline void mbedtls_sha1_update(
mbedtls_sha1_context *ctx,
@ -169,6 +223,11 @@ MBEDTLS_DEPRECATED static inline void mbedtls_sha1_update(
*
* \param ctx SHA-1 context
* \param output SHA-1 checksum result
*
* \warning SHA-1 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
MBEDTLS_DEPRECATED static inline void mbedtls_sha1_finish(
mbedtls_sha1_context *ctx,
@ -184,6 +243,11 @@ MBEDTLS_DEPRECATED static inline void mbedtls_sha1_finish(
*
* \param ctx SHA-1 context
* \param data buffer holding one block of data
*
* \warning SHA-1 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
MBEDTLS_DEPRECATED static inline void mbedtls_sha1_process(
mbedtls_sha1_context *ctx,
@ -215,6 +279,11 @@ extern "C" {
* \param output SHA-1 checksum result
*
* \return 0 if successful
*
* \warning SHA-1 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
int mbedtls_sha1_ret( const unsigned char *input,
size_t ilen,
@ -234,6 +303,11 @@ int mbedtls_sha1_ret( const unsigned char *input,
* \param input buffer holding the data
* \param ilen length of the input data
* \param output SHA-1 checksum result
*
* \warning SHA-1 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
MBEDTLS_DEPRECATED static inline void mbedtls_sha1( const unsigned char *input,
size_t ilen,
@ -249,6 +323,11 @@ MBEDTLS_DEPRECATED static inline void mbedtls_sha1( const unsigned char *input,
* \brief Checkup routine
*
* \return 0 if successful, or 1 if the test failed
*
* \warning SHA-1 is considered a weak message digest and its use
* constitutes a security risk. We recommend considering
* stronger message digests instead.
*
*/
int mbedtls_sha1_self_test( int verbose );