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-rw-r--r--src/util/fipstools/cavp/cavp_test_util.cc231
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diff --git a/src/util/fipstools/cavp/cavp_test_util.cc b/src/util/fipstools/cavp/cavp_test_util.cc
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+++ b/src/util/fipstools/cavp/cavp_test_util.cc
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+/* Copyright (c) 2017, Google Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
+
+#include "cavp_test_util.h"
+
+#include <openssl/bn.h>
+#include <openssl/digest.h>
+#include <openssl/ec.h>
+#include <openssl/nid.h>
+
+
+std::string EncodeHex(const uint8_t *in, size_t in_len) {
+ static const char kHexDigits[] = "0123456789abcdef";
+ std::string ret;
+ ret.reserve(in_len * 2);
+ for (size_t i = 0; i < in_len; i++) {
+ ret += kHexDigits[in[i] >> 4];
+ ret += kHexDigits[in[i] & 0xf];
+ }
+ return ret;
+}
+
+const EVP_CIPHER *GetCipher(const std::string &name) {
+ if (name == "des-cbc") {
+ return EVP_des_cbc();
+ } else if (name == "des-ecb") {
+ return EVP_des_ecb();
+ } else if (name == "des-ede") {
+ return EVP_des_ede();
+ } else if (name == "des-ede3") {
+ return EVP_des_ede3();
+ } else if (name == "des-ede-cbc") {
+ return EVP_des_ede_cbc();
+ } else if (name == "des-ede3-cbc") {
+ return EVP_des_ede3_cbc();
+ } else if (name == "rc4") {
+ return EVP_rc4();
+ } else if (name == "aes-128-ecb") {
+ return EVP_aes_128_ecb();
+ } else if (name == "aes-256-ecb") {
+ return EVP_aes_256_ecb();
+ } else if (name == "aes-128-cbc") {
+ return EVP_aes_128_cbc();
+ } else if (name == "aes-128-gcm") {
+ return EVP_aes_128_gcm();
+ } else if (name == "aes-128-ofb") {
+ return EVP_aes_128_ofb();
+ } else if (name == "aes-192-cbc") {
+ return EVP_aes_192_cbc();
+ } else if (name == "aes-192-ctr") {
+ return EVP_aes_192_ctr();
+ } else if (name == "aes-192-ecb") {
+ return EVP_aes_192_ecb();
+ } else if (name == "aes-256-cbc") {
+ return EVP_aes_256_cbc();
+ } else if (name == "aes-128-ctr") {
+ return EVP_aes_128_ctr();
+ } else if (name == "aes-256-ctr") {
+ return EVP_aes_256_ctr();
+ } else if (name == "aes-256-gcm") {
+ return EVP_aes_256_gcm();
+ } else if (name == "aes-256-ofb") {
+ return EVP_aes_256_ofb();
+ }
+ return nullptr;
+}
+
+bool CipherOperation(const EVP_CIPHER *cipher, std::vector<uint8_t> *out,
+ bool encrypt, const std::vector<uint8_t> &key,
+ const std::vector<uint8_t> &iv,
+ const std::vector<uint8_t> &in) {
+ bssl::ScopedEVP_CIPHER_CTX ctx;
+ if (!EVP_CipherInit_ex(ctx.get(), cipher, nullptr, nullptr, nullptr,
+ encrypt ? 1 : 0)) {
+ return false;
+ }
+ if (!iv.empty() && iv.size() != EVP_CIPHER_CTX_iv_length(ctx.get())) {
+ return false;
+ }
+
+ int result_len1 = 0, result_len2;
+ *out = std::vector<uint8_t>(in.size());
+ if (!EVP_CIPHER_CTX_set_key_length(ctx.get(), key.size()) ||
+ !EVP_CipherInit_ex(ctx.get(), nullptr, nullptr, key.data(), iv.data(),
+ -1) ||
+ !EVP_CIPHER_CTX_set_padding(ctx.get(), 0) ||
+ !EVP_CipherUpdate(ctx.get(), out->data(), &result_len1, in.data(),
+ in.size()) ||
+ !EVP_CipherFinal_ex(ctx.get(), out->data() + result_len1, &result_len2)) {
+ return false;
+ }
+ out->resize(result_len1 + result_len2);
+
+ return true;
+}
+
+bool AEADEncrypt(const EVP_AEAD *aead, std::vector<uint8_t> *ct,
+ std::vector<uint8_t> *tag, size_t tag_len,
+ const std::vector<uint8_t> &key,
+ const std::vector<uint8_t> &pt,
+ const std::vector<uint8_t> &aad,
+ const std::vector<uint8_t> &iv) {
+ bssl::ScopedEVP_AEAD_CTX ctx;
+ if (!EVP_AEAD_CTX_init(ctx.get(), aead, key.data(), key.size(), tag_len,
+ nullptr)) {
+ return false;
+ }
+
+ std::vector<uint8_t> out;
+ out.resize(pt.size() + EVP_AEAD_max_overhead(aead));
+ size_t out_len;
+ if (!EVP_AEAD_CTX_seal(ctx.get(), out.data(), &out_len, out.size(), iv.data(),
+ iv.size(), pt.data(), pt.size(), aad.data(),
+ aad.size())) {
+ return false;
+ }
+ out.resize(out_len);
+
+ ct->assign(out.begin(), out.end() - tag_len);
+ tag->assign(out.end() - tag_len, out.end());
+
+ return true;
+}
+
+bool AEADDecrypt(const EVP_AEAD *aead, std::vector<uint8_t> *pt, size_t pt_len,
+ const std::vector<uint8_t> &key,
+ const std::vector<uint8_t> &aad,
+ const std::vector<uint8_t> &ct,
+ const std::vector<uint8_t> &tag,
+ const std::vector<uint8_t> &iv) {
+ bssl::ScopedEVP_AEAD_CTX ctx;
+ if (!EVP_AEAD_CTX_init_with_direction(ctx.get(), aead, key.data(), key.size(),
+ tag.size(), evp_aead_open)) {
+ return false;
+ }
+ std::vector<uint8_t> in = ct;
+ in.reserve(ct.size() + tag.size());
+ in.insert(in.end(), tag.begin(), tag.end());
+
+ pt->resize(pt_len);
+ size_t out_pt_len;
+ if (!EVP_AEAD_CTX_open(ctx.get(), pt->data(), &out_pt_len, pt->size(),
+ iv.data(), iv.size(), in.data(), in.size(), aad.data(),
+ aad.size()) ||
+ out_pt_len != pt_len) {
+ return false;
+ }
+ return true;
+}
+
+static int HexToBIGNUM(bssl::UniquePtr<BIGNUM> *out, const char *in) {
+ BIGNUM *raw = NULL;
+ int ret = BN_hex2bn(&raw, in);
+ out->reset(raw);
+ return ret;
+}
+
+bssl::UniquePtr<BIGNUM> GetBIGNUM(FileTest *t, const char *attribute) {
+ std::string hex;
+ if (!t->GetAttribute(&hex, attribute)) {
+ return nullptr;
+ }
+
+ bssl::UniquePtr<BIGNUM> ret;
+ if (HexToBIGNUM(&ret, hex.c_str()) != static_cast<int>(hex.size())) {
+ t->PrintLine("Could not decode '%s'.", hex.c_str());
+ return nullptr;
+ }
+ return ret;
+}
+
+int GetECGroupNIDFromInstruction(FileTest *t, const char **out_str) {
+ const char *dummy;
+ if (out_str == nullptr) {
+ out_str = &dummy;
+ }
+
+ if (t->HasInstruction("P-224")) {
+ *out_str = "P-224";
+ return NID_secp224r1;
+ }
+ if (t->HasInstruction("P-256")) {
+ *out_str = "P-256";
+ return NID_X9_62_prime256v1;
+ }
+ if (t->HasInstruction("P-384")) {
+ *out_str = "P-384";
+ return NID_secp384r1;
+ }
+ if (t->HasInstruction("P-521")) {
+ *out_str = "P-521";
+ return NID_secp521r1;
+ }
+ t->PrintLine("No supported group specified.");
+ return NID_undef;
+}
+
+const EVP_MD *GetDigestFromInstruction(FileTest *t) {
+ if (t->HasInstruction("SHA-1")) {
+ return EVP_sha1();
+ }
+ if (t->HasInstruction("SHA-224")) {
+ return EVP_sha224();
+ }
+ if (t->HasInstruction("SHA-256")) {
+ return EVP_sha256();
+ }
+ if (t->HasInstruction("SHA-384")) {
+ return EVP_sha384();
+ }
+ if (t->HasInstruction("SHA-512")) {
+ return EVP_sha512();
+ }
+ t->PrintLine("No supported digest function specified.");
+ return nullptr;
+}
+
+void EchoComment(const std::string& comment) {
+ fwrite(comment.c_str(), comment.size(), 1, stdout);
+}
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