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pki: Add ssh_pki_publickey_to_string().

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This commit is contained in:
Andreas Schneider
2011-08-15 18:47:18 +02:00
parent fe375132c3
commit 6ffee22448
4 changed files with 249 additions and 21 deletions
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74
src/pki_crypto.c
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@@ -32,6 +32,7 @@
#include "libssh/priv.h"
#include "libssh/libssh.h"
#include "libssh/buffer.h"
#include "libssh/session.h"
#include "libssh/callbacks.h"
#include "libssh/pki.h"
@@ -347,10 +348,11 @@ int pki_pubkey_build_rsa(ssh_key key,
return SSH_OK;
}
int pki_publickey_to_string(const ssh_key key, ssh_string *pstr)
ssh_string pki_publickey_to_string(const ssh_key key)
{
ssh_string buffer;
ssh_buffer buffer;
ssh_string type_s;
ssh_string str = NULL;
ssh_string e = NULL;
ssh_string n = NULL;
ssh_string p = NULL;
@@ -378,22 +380,22 @@ int pki_publickey_to_string(const ssh_key key, ssh_string *pstr)
switch (key->type) {
case SSH_KEYTYPE_DSS:
p = make_bignum_string(key->p);
p = make_bignum_string(key->dsa->p);
if (p == NULL) {
goto fail;
}
q = make_bignum_string(key->q);
q = make_bignum_string(key->dsa->q);
if (q == NULL) {
goto fail;
}
g = make_bignum_string(key->g);
g = make_bignum_string(key->dsa->g);
if (g == NULL) {
goto fail;
}
n = make_bignum_string(key->pub_key);
n = make_bignum_string(key->dsa->pub_key);
if (n == NULL) {
goto fail;
}
@@ -410,14 +412,46 @@ int pki_publickey_to_string(const ssh_key key, ssh_string *pstr)
if (buffer_add_ssh_string(buffer, n) < 0) {
goto fail;
}
break;
case SSH_KEYTYPE_RSA:
case SSH_KEYTYPE_RSA1:
if (rsa_public_to_string(key->rsa_pub, buf) < 0) {
goto error;
}
break;
}
ssh_string_burn(p);
ssh_string_free(p);
ssh_string_burn(g);
ssh_string_free(g);
ssh_string_burn(q);
ssh_string_free(q);
ssh_string_burn(n);
ssh_string_free(n);
break;
case SSH_KEYTYPE_RSA:
case SSH_KEYTYPE_RSA1:
e = make_bignum_string(key->rsa->e);
if (p == NULL) {
goto fail;
}
n = make_bignum_string(key->rsa->n);
if (q == NULL) {
goto fail;
}
if (buffer_add_ssh_string(buffer, e) < 0) {
goto fail;
}
if (buffer_add_ssh_string(buffer, n) < 0) {
goto fail;
}
ssh_string_burn(e);
ssh_string_free(e);
ssh_string_burn(n);
ssh_string_free(n);
break;
case SSH_KEYTYPE_ECDSA:
case SSH_KEYTYPE_UNKNOWN:
goto fail;
}
str = ssh_string_new(buffer_get_rest_len(buffer));
if (str == NULL) {
@@ -430,17 +464,23 @@ int pki_publickey_to_string(const ssh_key key, ssh_string *pstr)
}
ssh_buffer_free(buffer);
*pstr = str;
return SSH_OK;
return str;
fail:
ssh_buffer_free(buffer);
ssh_string_burn(str);
ssh_string_free(str);
ssh_string_burn(e);
ssh_string_free(e);
ssh_string_burn(p);
ssh_string_free(p);
ssh_string_burn(g);
ssh_string_free(g);
ssh_string_burn(q);
ssh_string_free(q);
ssh_string_burn(n);
ssh_string_free(n);
return SSH_ERROR;
return NULL;
}
struct signature_struct *pki_do_sign(ssh_key privatekey,