mirror of
https://git.libssh.org/projects/libssh.git
synced 2026-02-07 10:40:28 +09:00
ec9d7d13fd
... instead of keeping around public and private key blobs. Signed-off-by: Jakub Jelen <jjelen@redhat.com> Reviewed-by: Sahana Prasad <sahana@redhat.com>
110 lines
2.9 KiB
C
110 lines
2.9 KiB
C
/*
|
|
* pki_ed25519_common.c - Common ed25519 functions
|
|
*
|
|
* This file is part of the SSH Library
|
|
*
|
|
* Copyright (c) 2014 by Aris Adamantiadis
|
|
*
|
|
* The SSH Library is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU Lesser General Public License as published by
|
|
* the Free Software Foundation; either version 2.1 of the License, or (at your
|
|
* option) any later version.
|
|
*
|
|
* The SSH Library is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
|
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
|
|
* License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* along with the SSH Library; see the file COPYING. If not, write to
|
|
* the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
|
|
* MA 02111-1307, USA.
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include "libssh/pki.h"
|
|
#include "libssh/pki_priv.h"
|
|
#include "libssh/buffer.h"
|
|
|
|
/**
|
|
* @internal
|
|
*
|
|
* @brief output a signature blob from an ed25519 signature
|
|
*
|
|
* @param[in] sig signature to convert
|
|
*
|
|
* @return Signature blob in SSH string, or NULL on error
|
|
*/
|
|
ssh_string pki_ed25519_signature_to_blob(ssh_signature sig)
|
|
{
|
|
ssh_string sig_blob;
|
|
int rc;
|
|
|
|
#ifdef HAVE_LIBCRYPTO
|
|
/* When using the OpenSSL implementation, the signature is stored in raw_sig
|
|
* which is shared by all algorithms.*/
|
|
if (sig->raw_sig == NULL) {
|
|
return NULL;
|
|
}
|
|
#else
|
|
/* When using the internal implementation, the signature is stored in an
|
|
* algorithm specific field. */
|
|
if (sig->ed25519_sig == NULL) {
|
|
return NULL;
|
|
}
|
|
#endif
|
|
|
|
sig_blob = ssh_string_new(ED25519_SIG_LEN);
|
|
if (sig_blob == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
#ifdef HAVE_LIBCRYPTO
|
|
rc = ssh_string_fill(sig_blob, ssh_string_data(sig->raw_sig),
|
|
ssh_string_len(sig->raw_sig));
|
|
#else
|
|
rc = ssh_string_fill(sig_blob, sig->ed25519_sig, ED25519_SIG_LEN);
|
|
#endif
|
|
if (rc < 0) {
|
|
SSH_STRING_FREE(sig_blob);
|
|
return NULL;
|
|
}
|
|
|
|
return sig_blob;
|
|
}
|
|
|
|
/**
|
|
* @internal
|
|
*
|
|
* @brief Convert a signature blob in an ed25519 signature.
|
|
*
|
|
* @param[out] sig a preinitialized signature
|
|
*
|
|
* @param[in] sig_blob a signature blob
|
|
*
|
|
* @return SSH_ERROR on error, SSH_OK on success
|
|
*/
|
|
int pki_signature_from_ed25519_blob(ssh_signature sig, ssh_string sig_blob)
|
|
{
|
|
size_t len;
|
|
|
|
len = ssh_string_len(sig_blob);
|
|
if (len != ED25519_SIG_LEN){
|
|
SSH_LOG(SSH_LOG_TRACE, "Invalid ssh-ed25519 signature len: %zu", len);
|
|
return SSH_ERROR;
|
|
}
|
|
|
|
#ifdef HAVE_LIBCRYPTO
|
|
sig->raw_sig = ssh_string_copy(sig_blob);
|
|
#else
|
|
sig->ed25519_sig = malloc(ED25519_SIG_LEN);
|
|
if (sig->ed25519_sig == NULL){
|
|
return SSH_ERROR;
|
|
}
|
|
memcpy(sig->ed25519_sig, ssh_string_data(sig_blob), ED25519_SIG_LEN);
|
|
#endif
|
|
|
|
return SSH_OK;
|
|
}
|