mirror of
https://github.com/libssh2/libssh2.git
synced 2025-11-03 22:13:11 +03:00
Initially the libssh2 code was indented with tabs of 4 spaces. Some of
the recent commits converted the tabs to 4 spaces, which matched the initial indent size. Other commits converted the tabs to 8 spaces, this didn't match. All the code has been converted to 4 space indents. No changes to line lengths or actual code was performed. This is in preperation to my up coming non-blocking work so my commits should only be code changes and line lengths in the code I am working on.
This commit is contained in:
James Housley
798
src/libgcrypt.c
798
src/libgcrypt.c
@@ -39,529 +39,529 @@
|
||||
#include <string.h>
|
||||
|
||||
int _libssh2_rsa_new(libssh2_rsa_ctx **rsa,
|
||||
const unsigned char *edata,
|
||||
unsigned long elen,
|
||||
const unsigned char *ndata,
|
||||
unsigned long nlen,
|
||||
const unsigned char *ddata,
|
||||
unsigned long dlen,
|
||||
const unsigned char *pdata,
|
||||
unsigned long plen,
|
||||
const unsigned char *qdata,
|
||||
unsigned long qlen,
|
||||
const unsigned char *e1data,
|
||||
unsigned long e1len,
|
||||
const unsigned char *e2data,
|
||||
unsigned long e2len,
|
||||
const unsigned char *coeffdata,
|
||||
unsigned long coefflen)
|
||||
const unsigned char *edata,
|
||||
unsigned long elen,
|
||||
const unsigned char *ndata,
|
||||
unsigned long nlen,
|
||||
const unsigned char *ddata,
|
||||
unsigned long dlen,
|
||||
const unsigned char *pdata,
|
||||
unsigned long plen,
|
||||
const unsigned char *qdata,
|
||||
unsigned long qlen,
|
||||
const unsigned char *e1data,
|
||||
unsigned long e1len,
|
||||
const unsigned char *e2data,
|
||||
unsigned long e2len,
|
||||
const unsigned char *coeffdata,
|
||||
unsigned long coefflen)
|
||||
{
|
||||
int rc;
|
||||
(void)e1data;
|
||||
(void)e1len;
|
||||
(void)e2data;
|
||||
(void)e2len;
|
||||
int rc;
|
||||
(void)e1data;
|
||||
(void)e1len;
|
||||
(void)e2data;
|
||||
(void)e2len;
|
||||
|
||||
if (ddata) {
|
||||
rc = gcry_sexp_build
|
||||
(rsa, NULL,
|
||||
"(private-key(rsa(n%b)(e%b)(d%b)(q%b)(p%b)(u%b)))",
|
||||
nlen, ndata, elen, edata, dlen, ddata, plen, pdata,
|
||||
qlen, qdata, coefflen, coeffdata);
|
||||
} else {
|
||||
rc = gcry_sexp_build (rsa, NULL, "(public-key(rsa(n%b)(e%b)))",
|
||||
nlen, ndata, elen, edata);
|
||||
}
|
||||
if (rc)
|
||||
{
|
||||
*rsa = NULL;
|
||||
return -1;
|
||||
}
|
||||
if (ddata) {
|
||||
rc = gcry_sexp_build
|
||||
(rsa, NULL,
|
||||
"(private-key(rsa(n%b)(e%b)(d%b)(q%b)(p%b)(u%b)))",
|
||||
nlen, ndata, elen, edata, dlen, ddata, plen, pdata,
|
||||
qlen, qdata, coefflen, coeffdata);
|
||||
} else {
|
||||
rc = gcry_sexp_build (rsa, NULL, "(public-key(rsa(n%b)(e%b)))",
|
||||
nlen, ndata, elen, edata);
|
||||
}
|
||||
if (rc)
|
||||
{
|
||||
*rsa = NULL;
|
||||
return -1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
return 0;
|
||||
}
|
||||
|
||||
int _libssh2_rsa_sha1_verify(libssh2_rsa_ctx *rsa,
|
||||
const unsigned char *sig,
|
||||
unsigned long sig_len,
|
||||
const unsigned char *m,
|
||||
unsigned long m_len)
|
||||
const unsigned char *sig,
|
||||
unsigned long sig_len,
|
||||
const unsigned char *m,
|
||||
unsigned long m_len)
|
||||
{
|
||||
unsigned char hash[SHA_DIGEST_LENGTH];
|
||||
gcry_sexp_t s_sig, s_hash;
|
||||
int rc = -1;
|
||||
unsigned char hash[SHA_DIGEST_LENGTH];
|
||||
gcry_sexp_t s_sig, s_hash;
|
||||
int rc = -1;
|
||||
|
||||
libssh2_sha1(m, m_len, hash);
|
||||
libssh2_sha1(m, m_len, hash);
|
||||
|
||||
rc = gcry_sexp_build (&s_hash, NULL,
|
||||
"(data (flags pkcs1) (hash sha1 %b))",
|
||||
SHA_DIGEST_LENGTH, hash);
|
||||
if (rc != 0) {
|
||||
return -1;
|
||||
}
|
||||
rc = gcry_sexp_build (&s_hash, NULL,
|
||||
"(data (flags pkcs1) (hash sha1 %b))",
|
||||
SHA_DIGEST_LENGTH, hash);
|
||||
if (rc != 0) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
rc = gcry_sexp_build (&s_sig, NULL, "(sig-val(rsa(s %b)))",
|
||||
sig_len, sig);
|
||||
if (rc != 0) {
|
||||
gcry_sexp_release (s_hash);
|
||||
return -1;
|
||||
}
|
||||
rc = gcry_sexp_build (&s_sig, NULL, "(sig-val(rsa(s %b)))",
|
||||
sig_len, sig);
|
||||
if (rc != 0) {
|
||||
gcry_sexp_release (s_hash);
|
||||
return -1;
|
||||
}
|
||||
|
||||
rc = gcry_pk_verify (s_sig, s_hash, rsa);
|
||||
gcry_sexp_release (s_sig);
|
||||
gcry_sexp_release (s_hash);
|
||||
rc = gcry_pk_verify (s_sig, s_hash, rsa);
|
||||
gcry_sexp_release (s_sig);
|
||||
gcry_sexp_release (s_hash);
|
||||
|
||||
return (rc == 0) ? 0 : -1;
|
||||
return (rc == 0) ? 0 : -1;
|
||||
}
|
||||
|
||||
int _libssh2_dsa_new(libssh2_dsa_ctx **dsactx,
|
||||
const unsigned char *p,
|
||||
unsigned long p_len,
|
||||
const unsigned char *q,
|
||||
unsigned long q_len,
|
||||
const unsigned char *g,
|
||||
unsigned long g_len,
|
||||
const unsigned char *y,
|
||||
unsigned long y_len,
|
||||
const unsigned char *x,
|
||||
unsigned long x_len)
|
||||
const unsigned char *p,
|
||||
unsigned long p_len,
|
||||
const unsigned char *q,
|
||||
unsigned long q_len,
|
||||
const unsigned char *g,
|
||||
unsigned long g_len,
|
||||
const unsigned char *y,
|
||||
unsigned long y_len,
|
||||
const unsigned char *x,
|
||||
unsigned long x_len)
|
||||
{
|
||||
int rc;
|
||||
int rc;
|
||||
|
||||
if (x_len) {
|
||||
rc = gcry_sexp_build
|
||||
(dsactx, NULL,
|
||||
"(private-key(dsa(p%b)(q%b)(g%b)(y%b)(x%b)))",
|
||||
p_len, p, q_len, q, g_len, g, y_len, y, x_len, x);
|
||||
} else {
|
||||
rc = gcry_sexp_build (dsactx, NULL,
|
||||
"(public-key(dsa(p%b)(q%b)(g%b)(y%b)))",
|
||||
p_len, p, q_len, q, g_len, g, y_len, y);
|
||||
}
|
||||
if (x_len) {
|
||||
rc = gcry_sexp_build
|
||||
(dsactx, NULL,
|
||||
"(private-key(dsa(p%b)(q%b)(g%b)(y%b)(x%b)))",
|
||||
p_len, p, q_len, q, g_len, g, y_len, y, x_len, x);
|
||||
} else {
|
||||
rc = gcry_sexp_build (dsactx, NULL,
|
||||
"(public-key(dsa(p%b)(q%b)(g%b)(y%b)))",
|
||||
p_len, p, q_len, q, g_len, g, y_len, y);
|
||||
}
|
||||
|
||||
if (rc) {
|
||||
*dsactx = NULL;
|
||||
return -1;
|
||||
}
|
||||
if (rc) {
|
||||
*dsactx = NULL;
|
||||
return -1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
return 0;
|
||||
}
|
||||
|
||||
int _libssh2_rsa_new_private (libssh2_rsa_ctx **rsa,
|
||||
LIBSSH2_SESSION *session,
|
||||
FILE *fp,
|
||||
unsigned const char *passphrase)
|
||||
LIBSSH2_SESSION *session,
|
||||
FILE *fp,
|
||||
unsigned const char *passphrase)
|
||||
{
|
||||
char *data, *save_data;
|
||||
unsigned int datalen;
|
||||
int ret;
|
||||
char *n, *e, *d, *p, *q, *e1, *e2, *coeff;
|
||||
unsigned int nlen, elen, dlen, plen, qlen, e1len, e2len, coefflen;
|
||||
char *data, *save_data;
|
||||
unsigned int datalen;
|
||||
int ret;
|
||||
char *n, *e, *d, *p, *q, *e1, *e2, *coeff;
|
||||
unsigned int nlen, elen, dlen, plen, qlen, e1len, e2len, coefflen;
|
||||
|
||||
(void)passphrase;
|
||||
(void)passphrase;
|
||||
|
||||
ret = _libssh2_pem_parse (session,
|
||||
"-----BEGIN RSA PRIVATE KEY-----",
|
||||
"-----END RSA PRIVATE KEY-----",
|
||||
fp, &data, &datalen);
|
||||
if (ret) {
|
||||
return -1;
|
||||
}
|
||||
ret = _libssh2_pem_parse (session,
|
||||
"-----BEGIN RSA PRIVATE KEY-----",
|
||||
"-----END RSA PRIVATE KEY-----",
|
||||
fp, &data, &datalen);
|
||||
if (ret) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
save_data = data;
|
||||
save_data = data;
|
||||
|
||||
if (_libssh2_pem_decode_sequence (&data, &datalen)) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
if (_libssh2_pem_decode_sequence (&data, &datalen)) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
/* First read Version field (should be 0). */
|
||||
ret = _libssh2_pem_decode_integer (&data, &datalen, &n, &nlen);
|
||||
if (ret != 0 || (nlen != 1 && *n != '\0')) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
ret = _libssh2_pem_decode_integer (&data, &datalen, &n, &nlen);
|
||||
if (ret != 0 || (nlen != 1 && *n != '\0')) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
|
||||
ret = _libssh2_pem_decode_integer (&data, &datalen, &n, &nlen);
|
||||
if (ret != 0) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
ret = _libssh2_pem_decode_integer (&data, &datalen, &n, &nlen);
|
||||
if (ret != 0) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
|
||||
ret = _libssh2_pem_decode_integer (&data, &datalen, &e, &elen);
|
||||
if (ret != 0) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
ret = _libssh2_pem_decode_integer (&data, &datalen, &e, &elen);
|
||||
if (ret != 0) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
|
||||
ret = _libssh2_pem_decode_integer (&data, &datalen, &d, &dlen);
|
||||
if (ret != 0) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
ret = _libssh2_pem_decode_integer (&data, &datalen, &d, &dlen);
|
||||
if (ret != 0) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
|
||||
ret = _libssh2_pem_decode_integer (&data, &datalen, &p, &plen);
|
||||
if (ret != 0) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
ret = _libssh2_pem_decode_integer (&data, &datalen, &p, &plen);
|
||||
if (ret != 0) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
|
||||
ret = _libssh2_pem_decode_integer (&data, &datalen, &q, &qlen);
|
||||
if (ret != 0) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
ret = _libssh2_pem_decode_integer (&data, &datalen, &q, &qlen);
|
||||
if (ret != 0) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
|
||||
ret = _libssh2_pem_decode_integer (&data, &datalen, &e1, &e1len);
|
||||
if (ret != 0) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
ret = _libssh2_pem_decode_integer (&data, &datalen, &e1, &e1len);
|
||||
if (ret != 0) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
|
||||
ret = _libssh2_pem_decode_integer (&data, &datalen, &e2, &e2len);
|
||||
if (ret != 0) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
ret = _libssh2_pem_decode_integer (&data, &datalen, &e2, &e2len);
|
||||
if (ret != 0) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
|
||||
ret = _libssh2_pem_decode_integer (&data, &datalen, &coeff, &coefflen);
|
||||
if (ret != 0) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
ret = _libssh2_pem_decode_integer (&data, &datalen, &coeff, &coefflen);
|
||||
if (ret != 0) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
|
||||
if (_libssh2_rsa_new (rsa, e, elen, n, nlen, d, dlen, p, plen,
|
||||
q, qlen, e1, e1len, e2, e2len,
|
||||
coeff, coefflen)) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
if (_libssh2_rsa_new (rsa, e, elen, n, nlen, d, dlen, p, plen,
|
||||
q, qlen, e1, e1len, e2, e2len,
|
||||
coeff, coefflen)) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
|
||||
ret = 0;
|
||||
ret = 0;
|
||||
|
||||
fail:
|
||||
LIBSSH2_FREE (session, save_data);
|
||||
return ret;
|
||||
LIBSSH2_FREE (session, save_data);
|
||||
return ret;
|
||||
}
|
||||
|
||||
int _libssh2_dsa_new_private (libssh2_dsa_ctx **dsa,
|
||||
LIBSSH2_SESSION *session,
|
||||
FILE *fp,
|
||||
unsigned const char *passphrase)
|
||||
LIBSSH2_SESSION *session,
|
||||
FILE *fp,
|
||||
unsigned const char *passphrase)
|
||||
{
|
||||
char *data, *save_data;
|
||||
unsigned int datalen;
|
||||
int ret;
|
||||
char *p, *q, *g, *y, *x;
|
||||
unsigned int plen, qlen, glen, ylen, xlen;
|
||||
char *data, *save_data;
|
||||
unsigned int datalen;
|
||||
int ret;
|
||||
char *p, *q, *g, *y, *x;
|
||||
unsigned int plen, qlen, glen, ylen, xlen;
|
||||
|
||||
(void)passphrase;
|
||||
(void)passphrase;
|
||||
|
||||
ret = _libssh2_pem_parse (session,
|
||||
"-----BEGIN DSA PRIVATE KEY-----",
|
||||
"-----END DSA PRIVATE KEY-----",
|
||||
fp, &data, &datalen);
|
||||
if (ret) {
|
||||
return -1;
|
||||
}
|
||||
ret = _libssh2_pem_parse (session,
|
||||
"-----BEGIN DSA PRIVATE KEY-----",
|
||||
"-----END DSA PRIVATE KEY-----",
|
||||
fp, &data, &datalen);
|
||||
if (ret) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
save_data = data;
|
||||
save_data = data;
|
||||
|
||||
if (_libssh2_pem_decode_sequence (&data, &datalen)) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
if (_libssh2_pem_decode_sequence (&data, &datalen)) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
|
||||
/* First read Version field (should be 0). */
|
||||
ret = _libssh2_pem_decode_integer (&data, &datalen, &p, &plen);
|
||||
if (ret != 0 || (plen != 1 && *p != '\0')) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
ret = _libssh2_pem_decode_integer (&data, &datalen, &p, &plen);
|
||||
if (ret != 0 || (plen != 1 && *p != '\0')) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
|
||||
ret = _libssh2_pem_decode_integer (&data, &datalen, &p, &plen);
|
||||
if (ret != 0) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
ret = _libssh2_pem_decode_integer (&data, &datalen, &p, &plen);
|
||||
if (ret != 0) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
|
||||
ret = _libssh2_pem_decode_integer (&data, &datalen, &q, &qlen);
|
||||
if (ret != 0) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
ret = _libssh2_pem_decode_integer (&data, &datalen, &q, &qlen);
|
||||
if (ret != 0) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
|
||||
ret = _libssh2_pem_decode_integer (&data, &datalen, &g, &glen);
|
||||
if (ret != 0) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
ret = _libssh2_pem_decode_integer (&data, &datalen, &g, &glen);
|
||||
if (ret != 0) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
|
||||
ret = _libssh2_pem_decode_integer (&data, &datalen, &y, &ylen);
|
||||
if (ret != 0) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
ret = _libssh2_pem_decode_integer (&data, &datalen, &y, &ylen);
|
||||
if (ret != 0) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
|
||||
ret = _libssh2_pem_decode_integer (&data, &datalen, &x, &xlen);
|
||||
if (ret != 0) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
ret = _libssh2_pem_decode_integer (&data, &datalen, &x, &xlen);
|
||||
if (ret != 0) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
|
||||
if (datalen != 0) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
if (datalen != 0) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
|
||||
if (_libssh2_dsa_new (dsa, p, plen, q, qlen,
|
||||
g, glen, y, ylen, x, xlen)) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
if (_libssh2_dsa_new (dsa, p, plen, q, qlen,
|
||||
g, glen, y, ylen, x, xlen)) {
|
||||
ret = -1;
|
||||
goto fail;
|
||||
}
|
||||
|
||||
ret = 0;
|
||||
ret = 0;
|
||||
|
||||
fail:
|
||||
LIBSSH2_FREE (session, save_data);
|
||||
return ret;
|
||||
LIBSSH2_FREE (session, save_data);
|
||||
return ret;
|
||||
}
|
||||
|
||||
int _libssh2_rsa_sha1_sign(LIBSSH2_SESSION *session,
|
||||
libssh2_dsa_ctx *rsactx,
|
||||
const unsigned char *hash,
|
||||
unsigned long hash_len,
|
||||
unsigned char **signature,
|
||||
unsigned long *signature_len)
|
||||
libssh2_dsa_ctx *rsactx,
|
||||
const unsigned char *hash,
|
||||
unsigned long hash_len,
|
||||
unsigned char **signature,
|
||||
unsigned long *signature_len)
|
||||
{
|
||||
gcry_sexp_t sig_sexp;
|
||||
gcry_sexp_t data;
|
||||
int rc;
|
||||
const char *tmp;
|
||||
size_t size;
|
||||
gcry_sexp_t sig_sexp;
|
||||
gcry_sexp_t data;
|
||||
int rc;
|
||||
const char *tmp;
|
||||
size_t size;
|
||||
|
||||
if (hash_len != SHA_DIGEST_LENGTH) {
|
||||
return -1;
|
||||
}
|
||||
if (hash_len != SHA_DIGEST_LENGTH) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (gcry_sexp_build (&data, NULL,
|
||||
"(data (flags pkcs1) (hash sha1 %b))",
|
||||
hash_len, hash)) {
|
||||
return -1;
|
||||
}
|
||||
if (gcry_sexp_build (&data, NULL,
|
||||
"(data (flags pkcs1) (hash sha1 %b))",
|
||||
hash_len, hash)) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
rc = gcry_pk_sign (&sig_sexp, data, rsactx);
|
||||
rc = gcry_pk_sign (&sig_sexp, data, rsactx);
|
||||
|
||||
gcry_sexp_release (data);
|
||||
gcry_sexp_release (data);
|
||||
|
||||
if (rc != 0) {
|
||||
return -1;
|
||||
}
|
||||
if (rc != 0) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
data = gcry_sexp_find_token(sig_sexp, "s", 0);
|
||||
if (!data) {
|
||||
return -1;
|
||||
}
|
||||
data = gcry_sexp_find_token(sig_sexp, "s", 0);
|
||||
if (!data) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
tmp = gcry_sexp_nth_data(data, 1, &size);
|
||||
if (!tmp) {
|
||||
return -1;
|
||||
}
|
||||
tmp = gcry_sexp_nth_data(data, 1, &size);
|
||||
if (!tmp) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (tmp[0] == '\0') {
|
||||
tmp++;
|
||||
size--;
|
||||
}
|
||||
if (tmp[0] == '\0') {
|
||||
tmp++;
|
||||
size--;
|
||||
}
|
||||
|
||||
*signature = LIBSSH2_ALLOC(session, size);
|
||||
memcpy (*signature, tmp, size);
|
||||
*signature_len = size;
|
||||
*signature = LIBSSH2_ALLOC(session, size);
|
||||
memcpy (*signature, tmp, size);
|
||||
*signature_len = size;
|
||||
|
||||
return rc;
|
||||
return rc;
|
||||
}
|
||||
|
||||
int _libssh2_dsa_sha1_sign(libssh2_dsa_ctx *dsactx,
|
||||
const unsigned char *hash,
|
||||
unsigned long hash_len,
|
||||
unsigned char *sig)
|
||||
const unsigned char *hash,
|
||||
unsigned long hash_len,
|
||||
unsigned char *sig)
|
||||
{
|
||||
unsigned char zhash[SHA_DIGEST_LENGTH+1];
|
||||
gcry_sexp_t sig_sexp;
|
||||
gcry_sexp_t data;
|
||||
int ret;
|
||||
const char *tmp;
|
||||
size_t size;
|
||||
unsigned char zhash[SHA_DIGEST_LENGTH+1];
|
||||
gcry_sexp_t sig_sexp;
|
||||
gcry_sexp_t data;
|
||||
int ret;
|
||||
const char *tmp;
|
||||
size_t size;
|
||||
|
||||
if (hash_len != SHA_DIGEST_LENGTH) {
|
||||
return -1;
|
||||
}
|
||||
if (hash_len != SHA_DIGEST_LENGTH) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
memcpy (zhash + 1, hash, hash_len);
|
||||
zhash[0] = 0;
|
||||
memcpy (zhash + 1, hash, hash_len);
|
||||
zhash[0] = 0;
|
||||
|
||||
if (gcry_sexp_build (&data, NULL, "(data (value %b))",
|
||||
hash_len + 1, zhash)) {
|
||||
return -1;
|
||||
}
|
||||
if (gcry_sexp_build (&data, NULL, "(data (value %b))",
|
||||
hash_len + 1, zhash)) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
ret = gcry_pk_sign (&sig_sexp, data, dsactx);
|
||||
ret = gcry_pk_sign (&sig_sexp, data, dsactx);
|
||||
|
||||
gcry_sexp_release (data);
|
||||
gcry_sexp_release (data);
|
||||
|
||||
if (ret != 0) {
|
||||
return -1;
|
||||
}
|
||||
if (ret != 0) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
/* Extract R. */
|
||||
|
||||
data = gcry_sexp_find_token(sig_sexp, "r", 0);
|
||||
if (!data) {
|
||||
ret = -1;
|
||||
goto out;
|
||||
}
|
||||
data = gcry_sexp_find_token(sig_sexp, "r", 0);
|
||||
if (!data) {
|
||||
ret = -1;
|
||||
goto out;
|
||||
}
|
||||
|
||||
tmp = gcry_sexp_nth_data(data, 1, &size);
|
||||
if (!tmp) {
|
||||
ret = -1;
|
||||
goto out;
|
||||
}
|
||||
tmp = gcry_sexp_nth_data(data, 1, &size);
|
||||
if (!tmp) {
|
||||
ret = -1;
|
||||
goto out;
|
||||
}
|
||||
|
||||
if (tmp[0] == '\0') {
|
||||
tmp++;
|
||||
size--;
|
||||
}
|
||||
if (tmp[0] == '\0') {
|
||||
tmp++;
|
||||
size--;
|
||||
}
|
||||
|
||||
if (size != 20) {
|
||||
ret = -1;
|
||||
goto out;
|
||||
}
|
||||
if (size != 20) {
|
||||
ret = -1;
|
||||
goto out;
|
||||
}
|
||||
|
||||
memcpy (sig, tmp, 20);
|
||||
memcpy (sig, tmp, 20);
|
||||
|
||||
gcry_sexp_release (data);
|
||||
gcry_sexp_release (data);
|
||||
|
||||
/* Extract S. */
|
||||
|
||||
data = gcry_sexp_find_token(sig_sexp, "s",0);
|
||||
if (!data) {
|
||||
ret = -1;
|
||||
goto out;
|
||||
}
|
||||
data = gcry_sexp_find_token(sig_sexp, "s",0);
|
||||
if (!data) {
|
||||
ret = -1;
|
||||
goto out;
|
||||
}
|
||||
|
||||
tmp = gcry_sexp_nth_data(data, 1, &size);
|
||||
if (!tmp) {
|
||||
ret = -1;
|
||||
goto out;
|
||||
}
|
||||
tmp = gcry_sexp_nth_data(data, 1, &size);
|
||||
if (!tmp) {
|
||||
ret = -1;
|
||||
goto out;
|
||||
}
|
||||
|
||||
if (tmp[0] == '\0') {
|
||||
tmp++;
|
||||
size--;
|
||||
}
|
||||
if (tmp[0] == '\0') {
|
||||
tmp++;
|
||||
size--;
|
||||
}
|
||||
|
||||
if (size != 20) {
|
||||
ret = -1;
|
||||
goto out;
|
||||
}
|
||||
if (size != 20) {
|
||||
ret = -1;
|
||||
goto out;
|
||||
}
|
||||
|
||||
memcpy (sig + 20, tmp, 20);
|
||||
memcpy (sig + 20, tmp, 20);
|
||||
|
||||
ret = 0;
|
||||
ret = 0;
|
||||
out:
|
||||
if (sig_sexp) {
|
||||
gcry_sexp_release (sig_sexp);
|
||||
}
|
||||
if (data) {
|
||||
gcry_sexp_release (data);
|
||||
}
|
||||
return ret;
|
||||
if (sig_sexp) {
|
||||
gcry_sexp_release (sig_sexp);
|
||||
}
|
||||
if (data) {
|
||||
gcry_sexp_release (data);
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
int _libssh2_dsa_sha1_verify(libssh2_dsa_ctx *dsactx,
|
||||
const unsigned char *sig,
|
||||
const unsigned char *m,
|
||||
unsigned long m_len)
|
||||
const unsigned char *sig,
|
||||
const unsigned char *m,
|
||||
unsigned long m_len)
|
||||
{
|
||||
unsigned char hash[SHA_DIGEST_LENGTH+1];
|
||||
gcry_sexp_t s_sig, s_hash;
|
||||
int rc = -1;
|
||||
unsigned char hash[SHA_DIGEST_LENGTH+1];
|
||||
gcry_sexp_t s_sig, s_hash;
|
||||
int rc = -1;
|
||||
|
||||
libssh2_sha1(m, m_len, hash+1);
|
||||
hash[0] = 0;
|
||||
libssh2_sha1(m, m_len, hash+1);
|
||||
hash[0] = 0;
|
||||
|
||||
if (gcry_sexp_build (&s_hash, NULL, "(data(flags raw)(value %b))",
|
||||
SHA_DIGEST_LENGTH+1, hash)) {
|
||||
return -1;
|
||||
}
|
||||
if (gcry_sexp_build (&s_hash, NULL, "(data(flags raw)(value %b))",
|
||||
SHA_DIGEST_LENGTH+1, hash)) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (gcry_sexp_build (&s_sig, NULL, "(sig-val(dsa(r %b)(s %b)))",
|
||||
20, sig, 20, sig + 20)) {
|
||||
gcry_sexp_release (s_hash);
|
||||
return -1;
|
||||
}
|
||||
if (gcry_sexp_build (&s_sig, NULL, "(sig-val(dsa(r %b)(s %b)))",
|
||||
20, sig, 20, sig + 20)) {
|
||||
gcry_sexp_release (s_hash);
|
||||
return -1;
|
||||
}
|
||||
|
||||
rc = gcry_pk_verify (s_sig, s_hash, dsactx);
|
||||
gcry_sexp_release (s_sig);
|
||||
gcry_sexp_release (s_hash);
|
||||
rc = gcry_pk_verify (s_sig, s_hash, dsactx);
|
||||
gcry_sexp_release (s_sig);
|
||||
gcry_sexp_release (s_hash);
|
||||
|
||||
return (rc == 0) ? 0 : -1;
|
||||
return (rc == 0) ? 0 : -1;
|
||||
}
|
||||
|
||||
int _libssh2_cipher_init (_libssh2_cipher_ctx *h,
|
||||
_libssh2_cipher_type(algo),
|
||||
unsigned char *iv,
|
||||
unsigned char *secret,
|
||||
int encrypt)
|
||||
_libssh2_cipher_type(algo),
|
||||
unsigned char *iv,
|
||||
unsigned char *secret,
|
||||
int encrypt)
|
||||
{
|
||||
int mode = 0, ret;
|
||||
int keylen = gcry_cipher_get_algo_keylen (algo);
|
||||
int mode = 0, ret;
|
||||
int keylen = gcry_cipher_get_algo_keylen (algo);
|
||||
|
||||
(void)encrypt;
|
||||
(void)encrypt;
|
||||
|
||||
if (algo != GCRY_CIPHER_ARCFOUR) {
|
||||
mode = GCRY_CIPHER_MODE_CBC;
|
||||
}
|
||||
if (algo != GCRY_CIPHER_ARCFOUR) {
|
||||
mode = GCRY_CIPHER_MODE_CBC;
|
||||
}
|
||||
|
||||
ret = gcry_cipher_open (h, algo, mode, 0);
|
||||
if (ret) {
|
||||
return -1;
|
||||
}
|
||||
ret = gcry_cipher_open (h, algo, mode, 0);
|
||||
if (ret) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
ret = gcry_cipher_setkey (*h, secret, keylen);
|
||||
if (ret) {
|
||||
gcry_cipher_close (*h);
|
||||
return -1;
|
||||
}
|
||||
ret = gcry_cipher_setkey (*h, secret, keylen);
|
||||
if (ret) {
|
||||
gcry_cipher_close (*h);
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (algo != GCRY_CIPHER_ARCFOUR) {
|
||||
int blklen = gcry_cipher_get_algo_blklen (algo);
|
||||
ret = gcry_cipher_setiv (*h, iv, blklen);
|
||||
if (ret) {
|
||||
gcry_cipher_close (*h);
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
if (algo != GCRY_CIPHER_ARCFOUR) {
|
||||
int blklen = gcry_cipher_get_algo_blklen (algo);
|
||||
ret = gcry_cipher_setiv (*h, iv, blklen);
|
||||
if (ret) {
|
||||
gcry_cipher_close (*h);
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
return 0;
|
||||
}
|
||||
|
||||
int _libssh2_cipher_crypt(_libssh2_cipher_ctx *ctx,
|
||||
_libssh2_cipher_type(algo),
|
||||
int encrypt,
|
||||
unsigned char *block)
|
||||
_libssh2_cipher_type(algo),
|
||||
int encrypt,
|
||||
unsigned char *block)
|
||||
{
|
||||
size_t blklen = gcry_cipher_get_algo_blklen (algo);
|
||||
int ret;
|
||||
if (blklen == 1) {
|
||||
size_t blklen = gcry_cipher_get_algo_blklen (algo);
|
||||
int ret;
|
||||
if (blklen == 1) {
|
||||
/* Hack for arcfour. */
|
||||
blklen = 8;
|
||||
}
|
||||
blklen = 8;
|
||||
}
|
||||
|
||||
if (encrypt) {
|
||||
ret = gcry_cipher_encrypt (*ctx, block, blklen,
|
||||
block, blklen);
|
||||
} else {
|
||||
ret = gcry_cipher_decrypt (*ctx, block, blklen,
|
||||
block, blklen);
|
||||
}
|
||||
return ret;
|
||||
if (encrypt) {
|
||||
ret = gcry_cipher_encrypt (*ctx, block, blklen,
|
||||
block, blklen);
|
||||
} else {
|
||||
ret = gcry_cipher_decrypt (*ctx, block, blklen,
|
||||
block, blklen);
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user