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Diffstat (limited to 'identity/support/src/IdentityCredentialSupport.cpp')
-rw-r--r--identity/support/src/IdentityCredentialSupport.cpp201
1 files changed, 4 insertions, 197 deletions
diff --git a/identity/support/src/IdentityCredentialSupport.cpp b/identity/support/src/IdentityCredentialSupport.cpp
index aba89c12dc..4547624fde 100644
--- a/identity/support/src/IdentityCredentialSupport.cpp
+++ b/identity/support/src/IdentityCredentialSupport.cpp
@@ -148,199 +148,6 @@ optional<vector<uint8_t>> decodeHex(const string& hexEncoded) {
}
// ---------------------------------------------------------------------------
-// CBOR utilities.
-// ---------------------------------------------------------------------------
-
-static bool cborAreAllElementsNonCompound(const cppbor::CompoundItem* compoundItem) {
- if (compoundItem->type() == cppbor::ARRAY) {
- const cppbor::Array* array = compoundItem->asArray();
- for (size_t n = 0; n < array->size(); n++) {
- const cppbor::Item* entry = (*array)[n].get();
- switch (entry->type()) {
- case cppbor::ARRAY:
- case cppbor::MAP:
- return false;
- default:
- break;
- }
- }
- } else {
- const cppbor::Map* map = compoundItem->asMap();
- for (size_t n = 0; n < map->size(); n++) {
- auto [keyEntry, valueEntry] = (*map)[n];
- switch (keyEntry->type()) {
- case cppbor::ARRAY:
- case cppbor::MAP:
- return false;
- default:
- break;
- }
- switch (valueEntry->type()) {
- case cppbor::ARRAY:
- case cppbor::MAP:
- return false;
- default:
- break;
- }
- }
- }
- return true;
-}
-
-static bool cborPrettyPrintInternal(const cppbor::Item* item, string& out, size_t indent,
- size_t maxBStrSize, const vector<string>& mapKeysToNotPrint) {
- char buf[80];
-
- string indentString(indent, ' ');
-
- switch (item->type()) {
- case cppbor::UINT:
- snprintf(buf, sizeof(buf), "%" PRIu64, item->asUint()->unsignedValue());
- out.append(buf);
- break;
-
- case cppbor::NINT:
- snprintf(buf, sizeof(buf), "%" PRId64, item->asNint()->value());
- out.append(buf);
- break;
-
- case cppbor::BSTR: {
- const cppbor::Bstr* bstr = item->asBstr();
- const vector<uint8_t>& value = bstr->value();
- if (value.size() > maxBStrSize) {
- unsigned char digest[SHA_DIGEST_LENGTH];
- SHA_CTX ctx;
- SHA1_Init(&ctx);
- SHA1_Update(&ctx, value.data(), value.size());
- SHA1_Final(digest, &ctx);
- char buf2[SHA_DIGEST_LENGTH * 2 + 1];
- for (size_t n = 0; n < SHA_DIGEST_LENGTH; n++) {
- snprintf(buf2 + n * 2, 3, "%02x", digest[n]);
- }
- snprintf(buf, sizeof(buf), "<bstr size=%zd sha1=%s>", value.size(), buf2);
- out.append(buf);
- } else {
- out.append("{");
- for (size_t n = 0; n < value.size(); n++) {
- if (n > 0) {
- out.append(", ");
- }
- snprintf(buf, sizeof(buf), "0x%02x", value[n]);
- out.append(buf);
- }
- out.append("}");
- }
- } break;
-
- case cppbor::TSTR:
- out.append("'");
- {
- // TODO: escape "'" characters
- out.append(item->asTstr()->value().c_str());
- }
- out.append("'");
- break;
-
- case cppbor::ARRAY: {
- const cppbor::Array* array = item->asArray();
- if (array->size() == 0) {
- out.append("[]");
- } else if (cborAreAllElementsNonCompound(array)) {
- out.append("[");
- for (size_t n = 0; n < array->size(); n++) {
- if (!cborPrettyPrintInternal((*array)[n].get(), out, indent + 2, maxBStrSize,
- mapKeysToNotPrint)) {
- return false;
- }
- out.append(", ");
- }
- out.append("]");
- } else {
- out.append("[\n" + indentString);
- for (size_t n = 0; n < array->size(); n++) {
- out.append(" ");
- if (!cborPrettyPrintInternal((*array)[n].get(), out, indent + 2, maxBStrSize,
- mapKeysToNotPrint)) {
- return false;
- }
- out.append(",\n" + indentString);
- }
- out.append("]");
- }
- } break;
-
- case cppbor::MAP: {
- const cppbor::Map* map = item->asMap();
-
- if (map->size() == 0) {
- out.append("{}");
- } else {
- out.append("{\n" + indentString);
- for (size_t n = 0; n < map->size(); n++) {
- out.append(" ");
-
- auto [map_key, map_value] = (*map)[n];
-
- if (!cborPrettyPrintInternal(map_key.get(), out, indent + 2, maxBStrSize,
- mapKeysToNotPrint)) {
- return false;
- }
- out.append(" : ");
- if (map_key->type() == cppbor::TSTR &&
- std::find(mapKeysToNotPrint.begin(), mapKeysToNotPrint.end(),
- map_key->asTstr()->value()) != mapKeysToNotPrint.end()) {
- out.append("<not printed>");
- } else {
- if (!cborPrettyPrintInternal(map_value.get(), out, indent + 2, maxBStrSize,
- mapKeysToNotPrint)) {
- return false;
- }
- }
- out.append(",\n" + indentString);
- }
- out.append("}");
- }
- } break;
-
- case cppbor::SEMANTIC: {
- const cppbor::Semantic* semantic = item->asSemantic();
- snprintf(buf, sizeof(buf), "tag %" PRIu64 " ", semantic->value());
- out.append(buf);
- cborPrettyPrintInternal(semantic->child().get(), out, indent, maxBStrSize,
- mapKeysToNotPrint);
- } break;
-
- case cppbor::SIMPLE:
- const cppbor::Bool* asBool = item->asSimple()->asBool();
- const cppbor::Null* asNull = item->asSimple()->asNull();
- if (asBool != nullptr) {
- out.append(asBool->value() ? "true" : "false");
- } else if (asNull != nullptr) {
- out.append("null");
- } else {
- LOG(ERROR) << "Only boolean/null is implemented for SIMPLE";
- return false;
- }
- break;
- }
-
- return true;
-}
-
-string cborPrettyPrint(const vector<uint8_t>& encodedCbor, size_t maxBStrSize,
- const vector<string>& mapKeysToNotPrint) {
- auto [item, _, message] = cppbor::parse(encodedCbor);
- if (item == nullptr) {
- LOG(ERROR) << "Data to pretty print is not valid CBOR: " << message;
- return "";
- }
-
- string out;
- cborPrettyPrintInternal(item.get(), out, 0, maxBStrSize, mapKeysToNotPrint);
- return out;
-}
-
-// ---------------------------------------------------------------------------
// Crypto functionality / abstraction.
// ---------------------------------------------------------------------------
@@ -2140,7 +1947,7 @@ optional<int> coseSignGetAlg(const vector<uint8_t>& signatureCoseSign1) {
}
for (size_t n = 0; n < protectedHeaders->size(); n++) {
- auto [keyItem, valueItem] = (*protectedHeaders)[n];
+ auto& [keyItem, valueItem] = (*protectedHeaders)[n];
const cppbor::Int* number = keyItem->asInt();
if (number == nullptr) {
LOG(ERROR) << "Key item in top-level map is not a number";
@@ -2183,7 +1990,7 @@ optional<vector<uint8_t>> coseSignGetX5Chain(const vector<uint8_t>& signatureCos
}
for (size_t n = 0; n < unprotectedHeaders->size(); n++) {
- auto [keyItem, valueItem] = (*unprotectedHeaders)[n];
+ auto& [keyItem, valueItem] = (*unprotectedHeaders)[n];
const cppbor::Int* number = keyItem->asInt();
if (number == nullptr) {
LOG(ERROR) << "Key item in top-level map is not a number";
@@ -2335,9 +2142,9 @@ optional<vector<uint8_t>> calcMac(const vector<uint8_t>& sessionTranscriptEncode
.add("DeviceAuthentication")
.add(std::move(sessionTranscriptItem))
.add(docType)
- .add(cppbor::Semantic(kSemanticTagEncodedCbor, deviceNameSpacesEncoded));
+ .add(cppbor::SemanticTag(kSemanticTagEncodedCbor, deviceNameSpacesEncoded));
vector<uint8_t> deviceAuthenticationBytes =
- cppbor::Semantic(kSemanticTagEncodedCbor, deviceAuthentication.encode()).encode();
+ cppbor::SemanticTag(kSemanticTagEncodedCbor, deviceAuthentication.encode()).encode();
optional<vector<uint8_t>> calculatedMac =
support::coseMac0(eMacKey, {}, // payload
deviceAuthenticationBytes); // detached content