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Jake Champion
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feat: Add support for SubtleCrypto
This adds an implementation of a subset of SubtleCrypto, specifically for JSON Web Token signing and validating. - SubtleCrypto.prototype.generateKey - SubtleCrypto.prototype.importKey - SubtleCrypto.prototype.sign - SubtleCrypto.prototype.verify with the following algorithms: - RSASSA_PKCS1_v1_5 - RSA_OAEP and the following digest algorithms: - SHA_1 - SHA_224 - SHA_256 - SHA_384 - SHA_512 Work in the future will be done to add the remaining algorithms and SubtleCrypto method implementations
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‎.github/workflows/main.yml‎

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@@ -173,6 +173,7 @@ jobs:
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- async-select
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- btoa
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- byte-repeater
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- crypto
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- config-store
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- console
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- dynamic-backend
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- 'async-select'
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- 'byte-repeater'
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- 'cache-override'
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- 'crypto'
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- 'edge-dictionary'
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- 'error'
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- 'geoip'
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- 'request-upstream'
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- 'response'
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- 'response-headers'
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- secret-store
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- 'secret-store'
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- 'status'
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- 'timers'
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steps:

‎.vscode/c_cpp_properties.json‎

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"includePath": [
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"${workspaceFolder}/c-dependencies/spidermonkey/debug/include",
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"/opt/wasi-sdk/share/wasi-sysroot/include/",
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"${workspaceFolder}/c-dependencies/js-compute-runtime"
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"${workspaceFolder}/c-dependencies/js-compute-runtime",
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"${workspaceFolder}/c-dependencies/js-compute-runtime/build/openssl-3.0.7/include"
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],
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"defines": [
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"__wasi__"

‎.vscode/settings.json‎

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{
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"files.associations": {
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"*.mdx": "mdx",
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"cstddef": "c",
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"limits": "c",
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"type_traits": "c",
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"__functional_03": "cpp",
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"__functional_base_03": "cpp",
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"memory_resource": "cpp",
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"numeric": "cpp"
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"numeric": "cpp",
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"future": "cpp",
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"__bits": "cpp",
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"__verbose_abort": "cpp",
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"any": "cpp",
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"cfenv": "cpp",
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"cinttypes": "cpp",
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"codecvt": "cpp",
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"complex": "cpp",
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"condition_variable": "cpp",
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"csignal": "cpp",
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"cuchar": "cpp",
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"format": "cpp",
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"forward_list": "cpp",
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"queue": "cpp",
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"scoped_allocator": "cpp",
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"shared_mutex": "cpp",
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"typeindex": "cpp",
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"valarray": "cpp",
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"variant": "cpp",
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"secmodi.h": "c",
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"secpkcs5.h": "c",
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"hash_map": "cpp",
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"hash_set": "cpp",
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"*.def": "cpp",
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"span": "cpp",
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"self_test.h": "c",
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"unistd.h": "c",
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"valuearray.h": "c"
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},
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"git.ignoreLimitWarning": true
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}

‎c-dependencies/js-compute-runtime/Makefile‎

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@@ -168,6 +168,7 @@ openssl: $(BUILD)/openssl/token
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$(BUILD)/openssl-$(OPENSSL_VERSION)/token: $(BUILD)/openssl-$(OPENSSL_VERSION).tar.gz $(FSM_SRC)/getuid.patch
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$Q tar -C $(BUILD) -xf $<
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$Q patch -d $(BUILD)/openssl-$(OPENSSL_VERSION) -p1 < $(FSM_SRC)/getuid.patch
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$Q patch -d $(BUILD)/openssl-$(OPENSSL_VERSION) -p1 < $(FSM_SRC)/rand.patch
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$Q touch $@
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OPENSSL_OPTS := -static -no-sock -no-asm -no-ui-console -no-egd

‎c-dependencies/js-compute-runtime/builtins/crypto-key-rsa-components.cpp‎

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#include "crypto-key-rsa-components.h"
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CryptoKeyRSAComponents::CryptoKeyRSAComponents(std::string modulus, std::string exponent)
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: _type(Type::Public), _modulus(modulus), _exponent(exponent) {}
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CryptoKeyRSAComponents::CryptoKeyRSAComponents(std::string modulus, std::string exponent,
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std::string privateExponent)
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: _type(Type::Private), _modulus(modulus), _exponent(exponent),
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_privateExponent(privateExponent), _hasAdditionalPrivateKeyParameters(false) {}
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CryptoKeyRSAComponents::CryptoKeyRSAComponents(std::string modulus, std::string exponent,
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std::string privateExponent,
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std::optional<PrimeInfo> firstPrimeInfo,
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std::optional<PrimeInfo> secondPrimeInfo,
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std::vector<PrimeInfo> otherPrimeInfos)
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: _type(Type::Private), _modulus(modulus), _exponent(exponent),
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_privateExponent(privateExponent), _hasAdditionalPrivateKeyParameters(true),
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_firstPrimeInfo(firstPrimeInfo), _secondPrimeInfo(secondPrimeInfo),
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_otherPrimeInfos(otherPrimeInfos) {}
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CryptoKeyRSAComponents::~CryptoKeyRSAComponents() = default;
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CryptoKeyRSAComponents CryptoKeyRSAComponents::createPrivateWithAdditionalData(
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std::string modulus, std::string exponent, std::string privateExponent,
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std::optional<PrimeInfo> firstPrimeInfo, std::optional<PrimeInfo> secondPrimeInfo,
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std::vector<PrimeInfo> otherPrimeInfos) {
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return CryptoKeyRSAComponents(modulus, exponent, privateExponent, firstPrimeInfo, secondPrimeInfo,
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otherPrimeInfos);
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}

‎c-dependencies/js-compute-runtime/builtins/crypto-key-rsa-components.h‎

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#pragma once
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#include <iostream>
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#include <list>
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#include <span>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <strings.h>
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#include <vector>
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class PrimeInfo {
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public:
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std::string primeFactor;
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std::string factorCRTExponent;
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std::string factorCRTCoefficient;
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PrimeInfo(
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std::string primeFactor,
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std::string factorCRTExponent,
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std::string factorCRTCoefficient):
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primeFactor{primeFactor},
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factorCRTExponent{factorCRTExponent},
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factorCRTCoefficient{factorCRTCoefficient}
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{};
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PrimeInfo(
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std::string primeFactor,
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std::string factorCRTExponent
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):
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primeFactor{primeFactor},
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factorCRTExponent{factorCRTExponent} {};
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PrimeInfo(
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std::string primeFactor
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):
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primeFactor{primeFactor} {};
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};
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class CryptoKeyRSAComponents {
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public:
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enum class Type { Public, Private };
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static CryptoKeyRSAComponents createPublic(std::string modulus, std::string exponent) {
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return CryptoKeyRSAComponents(modulus, exponent);
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}
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static CryptoKeyRSAComponents createPrivate(std::string modulus, std::string exponent,
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std::string privateExponent) {
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return CryptoKeyRSAComponents(modulus, exponent, privateExponent);
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}
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static CryptoKeyRSAComponents createPrivateWithAdditionalData(
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std::string modulus, std::string exponent, std::string privateExponent,
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std::optional<PrimeInfo> firstPrimeInfo, std::optional<PrimeInfo> secondPrimeInfo, std::vector<PrimeInfo> otherPrimeInfos);
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virtual ~CryptoKeyRSAComponents();
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Type type() { return _type; }
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// Private and public keys.
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std::string modulus() { return _modulus; }
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std::string exponent() { return _exponent; }
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// Only private keys.
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std::string privateExponent() { return _privateExponent; }
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bool hasAdditionalPrivateKeyParameters() { return _hasAdditionalPrivateKeyParameters; }
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std::optional<PrimeInfo> firstPrimeInfo() { return _firstPrimeInfo; }
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std::optional<PrimeInfo> secondPrimeInfo() { return _secondPrimeInfo; }
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std::vector<PrimeInfo> otherPrimeInfos() { return _otherPrimeInfos; }
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CryptoKeyRSAComponents(std::string modulus, std::string exponent);
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CryptoKeyRSAComponents(std::string modulus, std::string exponent, std::string privateExponent);
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CryptoKeyRSAComponents(std::string modulus, std::string exponent, std::string privateExponent,
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std::optional<PrimeInfo> firstPrimeInfo, std::optional<PrimeInfo> secondPrimeInfo,
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std::vector<PrimeInfo> otherPrimeInfos);
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Type _type;
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// Private and public keys.
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std::string _modulus;
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std::string _exponent;
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// Only private keys.
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std::string _privateExponent;
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bool _hasAdditionalPrivateKeyParameters;
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std::optional<PrimeInfo> _firstPrimeInfo;
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std::optional<PrimeInfo> _secondPrimeInfo;
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std::vector<PrimeInfo>
88+
_otherPrimeInfos; // When three or more primes have been used, the number of array elements
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// is be the number of primes used minus two.
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};

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