mirror of
https://github.com/openssl/openssl.git
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273 lines
7.5 KiB
C
273 lines
7.5 KiB
C
/*
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* Copyright 2016-2024 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <stdio.h>
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#include <string.h>
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#include <openssl/evp.h>
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#include <openssl/bio.h>
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#include <openssl/rand.h>
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#include "testutil.h"
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#define ENCRYPT 1
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#define DECRYPT 0
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#define DATA_SIZE 1024
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#define MAX_IV 32
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#define BUF_SIZE (DATA_SIZE + MAX_IV)
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static const unsigned char KEY[] = {
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0x51, 0x50, 0xd1, 0x77, 0x2f, 0x50, 0x83, 0x4a,
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0x50, 0x3e, 0x06, 0x9a, 0x97, 0x3f, 0xbd, 0x7c,
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0xe6, 0x1c, 0x43, 0x2b, 0x72, 0x0b, 0x19, 0xd1,
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0x8e, 0xc8, 0xd8, 0x4b, 0xdc, 0x63, 0x15, 0x1b
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};
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static const unsigned char IV[] = {
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0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
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0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
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0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
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0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08
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};
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static int do_bio_cipher(const EVP_CIPHER* cipher, const unsigned char* key,
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const unsigned char* iv)
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{
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BIO *b, *mem;
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static unsigned char inp[BUF_SIZE] = { 0 };
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unsigned char out[BUF_SIZE], ref[BUF_SIZE];
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int i, lref, len, tmplen;
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/* Fill buffer with non-zero data so that over steps can be detected */
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if (!TEST_int_gt(RAND_bytes(inp, DATA_SIZE), 0))
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return 0;
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/* Encrypt tests */
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/* reference output for single-chunk operation */
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b = BIO_new(BIO_f_cipher());
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if (!TEST_ptr(b))
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return 0;
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if (!TEST_true(BIO_set_cipher(b, cipher, key, iv, ENCRYPT)))
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goto err;
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mem = BIO_new_mem_buf(inp, DATA_SIZE);
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if (!TEST_ptr(mem))
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goto err;
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BIO_push(b, mem);
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lref = BIO_read(b, ref, sizeof(ref));
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BIO_free_all(b);
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/* perform split operations and compare to reference */
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for (i = 1; i < lref; i++) {
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b = BIO_new(BIO_f_cipher());
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if (!TEST_ptr(b))
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return 0;
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if (!TEST_true(BIO_set_cipher(b, cipher, key, iv, ENCRYPT))) {
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TEST_info("Split encrypt failed @ operation %d", i);
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goto err;
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}
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mem = BIO_new_mem_buf(inp, DATA_SIZE);
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if (!TEST_ptr(mem))
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goto err;
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BIO_push(b, mem);
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memset(out, 0, sizeof(out));
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out[i] = ~ref[i];
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tmplen = BIO_read(b, out, i);
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if (tmplen < 0)
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goto err;
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len = tmplen;
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/* check for overstep */
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if (!TEST_uchar_eq(out[i], (unsigned char)~ref[i])) {
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TEST_info("Encrypt overstep check failed @ operation %d", i);
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goto err;
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}
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tmplen = BIO_read(b, out + len, sizeof(out) - len);
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if (tmplen < 0)
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goto err;
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len += tmplen;
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BIO_free_all(b);
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if (!TEST_mem_eq(out, len, ref, lref)) {
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TEST_info("Encrypt compare failed @ operation %d", i);
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return 0;
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}
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}
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/* perform small-chunk operations and compare to reference */
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for (i = 1; i < lref / 2; i++) {
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int delta;
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b = BIO_new(BIO_f_cipher());
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if (!TEST_ptr(b))
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return 0;
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if (!TEST_true(BIO_set_cipher(b, cipher, key, iv, ENCRYPT))) {
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TEST_info("Small chunk encrypt failed @ operation %d", i);
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goto err;
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}
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mem = BIO_new_mem_buf(inp, DATA_SIZE);
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if (!TEST_ptr(mem))
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goto err;
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BIO_push(b, mem);
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memset(out, 0, sizeof(out));
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for (len = 0; (delta = BIO_read(b, out + len, i)); ) {
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len += delta;
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}
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BIO_free_all(b);
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if (!TEST_mem_eq(out, len, ref, lref)) {
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TEST_info("Small chunk encrypt compare failed @ operation %d", i);
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return 0;
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}
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}
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/* Decrypt tests */
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/* reference output for single-chunk operation */
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b = BIO_new(BIO_f_cipher());
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if (!TEST_ptr(b))
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return 0;
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if (!TEST_true(BIO_set_cipher(b, cipher, key, iv, DECRYPT)))
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goto err;
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/* Use original reference output as input */
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mem = BIO_new_mem_buf(ref, lref);
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if (!TEST_ptr(mem))
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goto err;
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BIO_push(b, mem);
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(void)BIO_flush(b);
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memset(out, 0, sizeof(out));
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len = BIO_read(b, out, sizeof(out));
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BIO_free_all(b);
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if (!TEST_mem_eq(inp, DATA_SIZE, out, len))
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return 0;
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/* perform split operations and compare to reference */
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for (i = 1; i < lref; i++) {
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b = BIO_new(BIO_f_cipher());
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if (!TEST_ptr(b))
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return 0;
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if (!TEST_true(BIO_set_cipher(b, cipher, key, iv, DECRYPT))) {
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TEST_info("Split decrypt failed @ operation %d", i);
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goto err;
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}
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mem = BIO_new_mem_buf(ref, lref);
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if (!TEST_ptr(mem))
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goto err;
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BIO_push(b, mem);
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memset(out, 0, sizeof(out));
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out[i] = ~ref[i];
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len = BIO_read(b, out, i);
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/* check for overstep */
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if (!TEST_uchar_eq(out[i], (unsigned char)~ref[i])) {
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TEST_info("Decrypt overstep check failed @ operation %d", i);
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goto err;
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}
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len += BIO_read(b, out + len, sizeof(out) - len);
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BIO_free_all(b);
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if (!TEST_mem_eq(inp, DATA_SIZE, out, len)) {
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TEST_info("Decrypt compare failed @ operation %d", i);
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return 0;
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}
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}
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/* perform small-chunk operations and compare to reference */
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for (i = 1; i < lref / 2; i++) {
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int delta;
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b = BIO_new(BIO_f_cipher());
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if (!TEST_ptr(b))
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return 0;
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if (!TEST_true(BIO_set_cipher(b, cipher, key, iv, DECRYPT))) {
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TEST_info("Small chunk decrypt failed @ operation %d", i);
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goto err;
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}
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mem = BIO_new_mem_buf(ref, lref);
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if (!TEST_ptr(mem))
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goto err;
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BIO_push(b, mem);
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memset(out, 0, sizeof(out));
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for (len = 0; (delta = BIO_read(b, out + len, i)); ) {
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len += delta;
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}
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BIO_free_all(b);
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if (!TEST_mem_eq(inp, DATA_SIZE, out, len)) {
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TEST_info("Small chunk decrypt compare failed @ operation %d", i);
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return 0;
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}
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}
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return 1;
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err:
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BIO_free_all(b);
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return 0;
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}
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static int do_test_bio_cipher(const EVP_CIPHER* cipher, int idx)
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{
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switch (idx) {
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case 0:
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return do_bio_cipher(cipher, KEY, NULL);
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case 1:
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return do_bio_cipher(cipher, KEY, IV);
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}
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return 0;
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}
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static int test_bio_enc_aes_128_cbc(int idx)
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{
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return do_test_bio_cipher(EVP_aes_128_cbc(), idx);
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}
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static int test_bio_enc_aes_128_ctr(int idx)
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{
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return do_test_bio_cipher(EVP_aes_128_ctr(), idx);
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}
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static int test_bio_enc_aes_256_cfb(int idx)
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{
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return do_test_bio_cipher(EVP_aes_256_cfb(), idx);
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}
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static int test_bio_enc_aes_256_ofb(int idx)
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{
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return do_test_bio_cipher(EVP_aes_256_ofb(), idx);
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}
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# ifndef OPENSSL_NO_CHACHA
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static int test_bio_enc_chacha20(int idx)
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{
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return do_test_bio_cipher(EVP_chacha20(), idx);
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}
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# ifndef OPENSSL_NO_POLY1305
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static int test_bio_enc_chacha20_poly1305(int idx)
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{
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return do_test_bio_cipher(EVP_chacha20_poly1305(), idx);
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}
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# endif
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# endif
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int setup_tests(void)
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{
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ADD_ALL_TESTS(test_bio_enc_aes_128_cbc, 2);
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ADD_ALL_TESTS(test_bio_enc_aes_128_ctr, 2);
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ADD_ALL_TESTS(test_bio_enc_aes_256_cfb, 2);
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ADD_ALL_TESTS(test_bio_enc_aes_256_ofb, 2);
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# ifndef OPENSSL_NO_CHACHA
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ADD_ALL_TESTS(test_bio_enc_chacha20, 2);
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# ifndef OPENSSL_NO_POLY1305
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ADD_ALL_TESTS(test_bio_enc_chacha20_poly1305, 2);
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# endif
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# endif
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return 1;
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}
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