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https://git.libssh.org/projects/libssh.git
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778652460f
Summary: This patch adds support for mbedTLS as a crypto backend for libssh. mbedTLS is an SSL/TLS library that has been designed to mainly be used in embedded systems. It is loosely coupled and has a low memory footprint. mbedTLS also provides a cryptography library (libmbedcrypto) that can be used without the TLS modules. The patch is unfortunately quite big, since several new files had to be added. DSA is disabled at compile time, since mbedTLS doesn't support DSA Patch review and feedback would be appreciated, and if any issues or suggestions appear, I'm willing to work on them. Signed-off-by: Juraj Vijtiuk <juraj.vijtiuk@sartura.hr> Test Plan: * The patch has been tested with a Debug and MinSizeRel build, with libssh unit tests, client tests and the pkd tests. * All the tests have been run with valgrind's memcheck, drd and helgrind tools. * The examples/samplessh client works when built with the patch. Reviewers: asn, aris Subscribers: simonsj Differential Revision: https://bugs.libssh.org/D1
106 lines
3.4 KiB
C
106 lines
3.4 KiB
C
/*
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* This file is part of the SSH Library
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*
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* Copyright (c) 2009 by Aris Adamantiadis
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef WRAPPER_H_
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#define WRAPPER_H_
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#include "config.h"
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#include "libssh/libssh.h"
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#include "libssh/libcrypto.h"
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#include "libssh/libgcrypt.h"
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#include "libssh/libmbedcrypto.h"
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enum ssh_mac_e {
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SSH_MAC_SHA1=1,
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SSH_MAC_SHA256,
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SSH_MAC_SHA384,
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SSH_MAC_SHA512
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};
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enum ssh_hmac_e {
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SSH_HMAC_SHA1 = 1,
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SSH_HMAC_SHA256,
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SSH_HMAC_SHA384,
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SSH_HMAC_SHA512,
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SSH_HMAC_MD5
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};
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enum ssh_des_e {
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SSH_3DES,
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SSH_DES
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};
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struct ssh_hmac_struct {
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const char* name;
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enum ssh_hmac_e hmac_type;
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};
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typedef struct ssh_mac_ctx_struct *ssh_mac_ctx;
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MD5CTX md5_init(void);
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void md5_update(MD5CTX c, const void *data, unsigned long len);
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void md5_final(unsigned char *md,MD5CTX c);
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SHACTX sha1_init(void);
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void sha1_update(SHACTX c, const void *data, unsigned long len);
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void sha1_final(unsigned char *md,SHACTX c);
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void sha1(unsigned char *digest,int len,unsigned char *hash);
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SHA256CTX sha256_init(void);
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void sha256_update(SHA256CTX c, const void *data, unsigned long len);
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void sha256_final(unsigned char *md,SHA256CTX c);
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void sha256(unsigned char *digest, int len, unsigned char *hash);
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SHA384CTX sha384_init(void);
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void sha384_update(SHA384CTX c, const void *data, unsigned long len);
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void sha384_final(unsigned char *md,SHA384CTX c);
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void sha384(unsigned char *digest, int len, unsigned char *hash);
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SHA512CTX sha512_init(void);
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void sha512_update(SHA512CTX c, const void *data, unsigned long len);
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void sha512_final(unsigned char *md,SHA512CTX c);
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void sha512(unsigned char *digest, int len, unsigned char *hash);
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void evp(int nid, unsigned char *digest, int len, unsigned char *hash, unsigned int *hlen);
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EVPCTX evp_init(int nid);
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void evp_update(EVPCTX ctx, const void *data, unsigned long len);
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void evp_final(EVPCTX ctx, unsigned char *md, unsigned int *mdlen);
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ssh_mac_ctx ssh_mac_ctx_init(enum ssh_mac_e type);
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void ssh_mac_update(ssh_mac_ctx ctx, const void *data, unsigned long len);
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void ssh_mac_final(unsigned char *md, ssh_mac_ctx ctx);
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HMACCTX hmac_init(const void *key,int len, enum ssh_hmac_e type);
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void hmac_update(HMACCTX c, const void *data, unsigned long len);
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void hmac_final(HMACCTX ctx,unsigned char *hashmacbuf,unsigned int *len);
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size_t hmac_digest_len(enum ssh_hmac_e type);
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int crypt_set_algorithms(ssh_session session, enum ssh_des_e des_type);
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int crypt_set_algorithms_server(ssh_session session);
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struct ssh_crypto_struct *crypto_new(void);
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void crypto_free(struct ssh_crypto_struct *crypto);
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void ssh_reseed(void);
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void ssh_cipher_clear(struct ssh_cipher_struct *cipher);
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struct ssh_hmac_struct *ssh_get_hmactab(void);
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const char *ssh_hmac_type_to_string(enum ssh_hmac_e hmac_type);
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#endif /* WRAPPER_H_ */
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