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/*
* Copyright 2017-2025 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <string.h>
#include <openssl/bio.h>
#include <openssl/pem.h>
#include "testutil.h"
#include "internal/nelem.h"
typedef struct {
const char *raw;
const char *encoded;
} TESTDATA;
static TESTDATA b64_pem_data[] = {
{ "hello world",
"aGVsbG8gd29ybGQ=" },
{ "a very ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooong input",
"YSB2ZXJ5IG9vb29vb29vb29vb29vb29vb29vb29vb29vb29vb29vb29vb29vb29vb29vb29vb29vb29vb29vb29vb29vb29vb29vb29vb29vb29vb29vb29vb29vb29vb29uZyBpbnB1dA==" }
};
static const char *pemtype = "PEMTESTDATA";
static char *pemfile;
static int test_b64(int idx)
{
BIO *b = BIO_new(BIO_s_mem());
char *name = NULL, *header = NULL;
unsigned char *data = NULL;
long len;
int ret = 0;
const char *raw = b64_pem_data[idx].raw;
const char *encoded = b64_pem_data[idx].encoded;
if (!TEST_ptr(b)
|| !TEST_true(BIO_printf(b, "-----BEGIN %s-----\n", pemtype))
|| !TEST_true(BIO_printf(b, "%s\n", encoded))
|| !TEST_true(BIO_printf(b, "-----END %s-----\n", pemtype))
|| !TEST_true(PEM_read_bio_ex(b, &name, &header, &data, &len,
PEM_FLAG_ONLY_B64)))
goto err;
if (!TEST_int_eq(memcmp(pemtype, name, strlen(pemtype)), 0)
|| !TEST_long_eq(len, (long)strlen(raw))
|| !TEST_int_eq(memcmp(data, raw, strlen(raw)), 0))
goto err;
ret = 1;
err:
BIO_free(b);
OPENSSL_free(name);
OPENSSL_free(header);
OPENSSL_free(data);
return ret;
}
static int test_invalid(void)
{
BIO *b = BIO_new(BIO_s_mem());
char *name = NULL, *header = NULL;
unsigned char *data = NULL;
long len;
const char *encoded = b64_pem_data[0].encoded;
if (!TEST_ptr(b)
|| !TEST_true(BIO_printf(b, "-----BEGIN %s-----\n", pemtype))
|| !TEST_true(BIO_printf(b, "%c%s\n", '\t', encoded))
|| !TEST_true(BIO_printf(b, "-----END %s-----\n", pemtype))
/* Expected to fail due to non-base64 character */
|| TEST_true(PEM_read_bio_ex(b, &name, &header, &data, &len,
PEM_FLAG_ONLY_B64))) {
BIO_free(b);
return 0;
}
BIO_free(b);
OPENSSL_free(name);
OPENSSL_free(header);
OPENSSL_free(data);
return 1;
}
static int test_cert_key_cert(void)
{
EVP_PKEY *key;
if (!TEST_ptr(key = load_pkey_pem(pemfile, NULL)))
return 0;
EVP_PKEY_free(key);
return 1;
}
static int test_empty_payload(void)
{
BIO *b;
static char *emptypay =
"-----BEGIN CERTIFICATE-----\n"
"-\n" /* Base64 EOF character */
"-----END CERTIFICATE-----";
char *name = NULL, *header = NULL;
unsigned char *data = NULL;
long len;
int ret = 0;
b = BIO_new_mem_buf(emptypay, (int)strlen(emptypay));
if (!TEST_ptr(b))
return 0;
/* Expected to fail because the payload is empty */
if (!TEST_false(PEM_read_bio_ex(b, &name, &header, &data, &len, 0)))
goto err;
ret = 1;
err:
OPENSSL_free(name);
OPENSSL_free(header);
OPENSSL_free(data);
BIO_free(b);
return ret;
}
static int test_protected_params(void)
{
BIO *b;
static char *protectedpay =
"-----BEGIN RSA PRIVATE KEY-----\n"
"Proc-Type: 4,ENCRYPTED\n"
"DEK-Info: AES-256-CBC,4A44448ED28992710556549B35100CEA\n"
"\n"
"Xw3INxKeH+rUUF57mjATpvj6zknVhedwrlRmRvnwlLv5wqIy5Ae4UVLPh7SUswfC\n"
"-----END RSA PRIVATE KEY-----\n";
EVP_PKEY *pkey = NULL;
int ret = 0;
b = BIO_new_mem_buf(protectedpay, (int)strlen(protectedpay));
if (!TEST_ptr(b))
return 0;
/* Expected to fail because we cannot decrypt protected PEM files */
pkey = PEM_read_bio_Parameters(b, NULL);
if (!TEST_ptr_null(pkey))
goto err;
ret = 1;
err:
EVP_PKEY_free(pkey);
BIO_free(b);
return ret;
}
int setup_tests(void)
{
if (!TEST_ptr(pemfile = test_get_argument(0)))
return 0;
ADD_ALL_TESTS(test_b64, OSSL_NELEM(b64_pem_data));
ADD_TEST(test_invalid);
ADD_TEST(test_cert_key_cert);
ADD_TEST(test_empty_payload);
ADD_TEST(test_protected_params);
return 1;
}
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