Mercurial > dropbear
view libtomcrypt/tests/base64_test.c @ 1861:2b3a8026a6ce
Add re-exec for server
This allows ASLR to re-randomize the address
space for every connection, preventing some
vulnerabilities from being exploitable by
repeated probing.
Overhead (memory and time) is yet to be confirmed.
At present this is only enabled on Linux. Other BSD platforms
with fexecve() would probably also work though have not been tested.
author | Matt Johnston <matt@ucc.asn.au> |
---|---|
date | Sun, 30 Jan 2022 10:14:56 +0800 |
parents | 6dba84798cd5 |
children |
line wrap: on
line source
/* LibTomCrypt, modular cryptographic library -- Tom St Denis * * LibTomCrypt is a library that provides various cryptographic * algorithms in a highly modular and flexible manner. * * The library is free for all purposes without any express * guarantee it works. */ #include <tomcrypt_test.h> #if defined(LTC_BASE64) || defined(LTC_BASE64_URL) int base64_test(void) { unsigned char in[64], out[256], tmp[64]; unsigned long x, l1, l2, slen1; const unsigned char special_case[] = { 0xbe, 0xe8, 0x92, 0x3c, 0xa2, 0x25, 0xf0, 0xf8, 0x91, 0xe4, 0xef, 0xab, 0x0b, 0x8c, 0xfd, 0xff, 0x14, 0xd0, 0x29, 0x9d, 0x00 }; #if defined(LTC_BASE64) /* TEST CASES SOURCE: Network Working Group S. Josefsson Request for Comments: 4648 SJD Obsoletes: 3548 October 2006 Category: Standards Track */ const struct { const char* s; const char* b64; } cases[] = { {"", "" }, {"f", "Zg==" }, {"fo", "Zm8=" }, {"foo", "Zm9v" }, {"foob", "Zm9vYg==" }, {"fooba", "Zm9vYmE=" }, {"foobar", "Zm9vYmFy"}, {(char*)special_case,"vuiSPKIl8PiR5O+rC4z9/xTQKZ0="} }; #endif #ifdef LTC_BASE64_URL const struct { const char* s; int is_strict; } url_cases[] = { {"vuiSPKIl8PiR5O-rC4z9_xTQKZ0", 0}, {"vuiSPKIl8PiR5O-rC4z9_xTQKZ0=", 1}, {"vuiS*PKIl8P*iR5O-rC4*z9_xTQKZ0", 0}, {"vuiS*PKIl8P*iR5O-rC4*z9_xTQKZ0=", 0}, {"vuiS*PKIl8P*iR5O-rC4*z9_xTQKZ0==", 0}, {"vuiS*PKIl8P*iR5O-rC4*z9_xTQKZ0===", 0}, {"vuiS*PKIl8P*iR5O-rC4*z9_xTQKZ0====", 0}, {"vuiS*=PKIl8P*iR5O-rC4*z9_xTQKZ0=", 0}, {"vuiS*==PKIl8P*iR5O-rC4*z9_xTQKZ0=", 0}, {"vuiS*===PKIl8P*iR5O-rC4*z9_xTQKZ0=", 0}, }; for (x = 0; x < sizeof(url_cases)/sizeof(url_cases[0]); ++x) { slen1 = strlen(url_cases[x].s); l1 = sizeof(out); if(url_cases[x].is_strict) DO(base64url_strict_decode((unsigned char*)url_cases[x].s, slen1, out, &l1)); else DO(base64url_decode((unsigned char*)url_cases[x].s, slen1, out, &l1)); if (compare_testvector(out, l1, special_case, sizeof(special_case) - 1, "base64url decode", x)) { return 1; } if(x < 2) { l2 = sizeof(tmp); if(x == 0) DO(base64url_encode(out, l1, tmp, &l2)); else DO(base64url_strict_encode(out, l1, tmp, &l2)); if (compare_testvector(tmp, l2, url_cases[x].s, strlen(url_cases[x].s), "base64url encode", x)) { return 1; } } } DO(base64url_strict_decode((unsigned char*)url_cases[4].s, slen1, out, &l1) == CRYPT_INVALID_PACKET ? CRYPT_OK : CRYPT_INVALID_PACKET); #endif #if defined(LTC_BASE64) for (x = 0; x < sizeof(cases)/sizeof(cases[0]); ++x) { memset(out, 0, sizeof(out)); memset(tmp, 0, sizeof(tmp)); slen1 = strlen(cases[x].s); l1 = sizeof(out); DO(base64_encode((unsigned char*)cases[x].s, slen1, out, &l1)); l2 = sizeof(tmp); DO(base64_strict_decode(out, l1, tmp, &l2)); if (compare_testvector(out, l1, cases[x].b64, strlen(cases[x].b64), "base64 encode", x) || compare_testvector(tmp, l2, cases[x].s, slen1, "base64 decode", x)) { return 1; } } for (x = 0; x < 64; x++) { yarrow_read(in, x, &yarrow_prng); l1 = sizeof(out); DO(base64_encode(in, x, out, &l1)); l2 = sizeof(tmp); DO(base64_decode(out, l1, tmp, &l2)); if (compare_testvector(tmp, x, in, x, "random base64", x)) { return 1; } } x--; memmove(&out[11], &out[10], l1 - 10); out[10] = '='; l1++; l2 = sizeof(tmp); DO(base64_decode(out, l1, tmp, &l2)); if (compare_testvector(tmp, l2, in, l2, "relaxed base64 decoding", -1)) { print_hex("input ", out, l1); return 1; } l2 = sizeof(tmp); DO(base64_strict_decode(out, l1, tmp, &l2) == CRYPT_INVALID_PACKET ? CRYPT_OK : CRYPT_INVALID_PACKET); #endif return 0; } #endif /* ref: $Format:%D$ */ /* git commit: $Format:%H$ */ /* commit time: $Format:%ai$ */