/**
* @brief Import a base64 formated public key from a memory c-string.
*
* @param[in] b64_key The base64 key to format.
*
* @param[in] type The type of the key to format.
*
* @param[out] pkey A pointer where the allocated key can be stored. You
* need to free the memory.
*
* @return SSH_OK on success, SSH_ERROR on error.
*
* @see ssh_key_free()
*/
int ssh_pki_import_pubkey_base64(const char *b64_key,
enum ssh_keytypes_e type,
ssh_key *pkey) {
ssh_buffer buffer;
ssh_string type_s;
int rc;
if (b64_key == NULL || pkey == NULL) {
return SSH_ERROR;
}
buffer = base64_to_bin(b64_key);
if (buffer == NULL) {
return SSH_ERROR;
}
type_s = ssh_buffer_get_ssh_string(buffer);
if (type_s == NULL) {
ssh_buffer_free(buffer);
return SSH_ERROR;
}
ssh_string_free(type_s);
if (type == SSH_KEYTYPE_RSA_CERT01 ||
type == SSH_KEYTYPE_DSS_CERT01) {
rc = pki_import_cert_buffer(buffer, type, pkey);
} else {
rc = pki_import_pubkey_buffer(buffer, type, pkey);
}
ssh_buffer_free(buffer);
return rc;
}
/**
* @brief Import a base64 formated public key from a memory c-string.
*
* @param[in] b64_key The base64 key to format.
*
* @param[in] type The type of the key to format.
*
* @param[out] pkey A pointer where the allocated key can be stored. You
* need to free the memory.
*
* @return SSH_OK on success, SSH_ERROR on error.
*
* @see ssh_key_free()
*/
int ssh_pki_import_pubkey_base64(const char *b64_key,
enum ssh_keytypes_e type,
ssh_key *pkey) {
ssh_buffer buffer;
ssh_string type_s;
int rc;
if (b64_key == NULL || pkey == NULL) {
return SSH_ERROR;
}
buffer = base64_to_bin(b64_key);
if (buffer == NULL) {
return SSH_ERROR;
}
type_s = buffer_get_ssh_string(buffer);
if (type_s == NULL) {
ssh_buffer_free(buffer);
return SSH_ERROR;
}
ssh_string_free(type_s);
rc = pki_import_pubkey_buffer(buffer, type, pkey);
ssh_buffer_free(buffer);
return rc;
}
/**
* @internal
*
* @brief Import a public key from a ssh string.
*
* @param[in] key_blob The key blob to import as specified in RFC 4253 section
* 6.6 "Public Key Algorithms".
*
* @param[out] pkey A pointer where the allocated key can be stored. You
* need to free the memory.
*
* @return SSH_OK on success, SSH_ERROR on error.
*
* @see ssh_key_free()
*/
int ssh_pki_import_pubkey_blob(const ssh_string key_blob,
ssh_key *pkey) {
ssh_buffer buffer;
ssh_string type_s = NULL;
enum ssh_keytypes_e type;
int rc;
if (key_blob == NULL || pkey == NULL) {
return SSH_ERROR;
}
buffer = ssh_buffer_new();
if (buffer == NULL) {
SSH_LOG(SSH_LOG_WARN, "Out of memory!");
return SSH_ERROR;
}
rc = ssh_buffer_add_data(buffer, ssh_string_data(key_blob),
ssh_string_len(key_blob));
if (rc < 0) {
SSH_LOG(SSH_LOG_WARN, "Out of memory!");
goto fail;
}
type_s = ssh_buffer_get_ssh_string(buffer);
if (type_s == NULL) {
SSH_LOG(SSH_LOG_WARN, "Out of memory!");
goto fail;
}
type = ssh_key_type_from_name(ssh_string_get_char(type_s));
if (type == SSH_KEYTYPE_UNKNOWN) {
SSH_LOG(SSH_LOG_WARN, "Unknown key type found!");
goto fail;
}
ssh_string_free(type_s);
if (type == SSH_KEYTYPE_RSA_CERT01 ||
type == SSH_KEYTYPE_DSS_CERT01) {
rc = pki_import_cert_buffer(buffer, type, pkey);
} else {
rc = pki_import_pubkey_buffer(buffer, type, pkey);
}
ssh_buffer_free(buffer);
return rc;
fail:
ssh_buffer_free(buffer);
ssh_string_free(type_s);
return SSH_ERROR;
}
