C++ (Cpp) CCRSACryptorEncrypt Examples

Example #1

File: CryptoAlgorithmRSA_OAEPMac.cpp Project: ollie314/webkit

// FIXME: We should change data to Vector<uint8_t> type once WebKitSubtleCrypto is deprecated.
// https://bugs.webkit.org/show_bug.cgi?id=164939
static ExceptionOr<Vector<uint8_t>> encryptRSA_OAEP(CryptoAlgorithmIdentifier hash, const Vector<uint8_t>& label, const PlatformRSAKey key, size_t keyLength, const uint8_t* data, size_t dataLength)
{
    CCDigestAlgorithm digestAlgorithm;
    if (!getCommonCryptoDigestAlgorithm(hash, digestAlgorithm))
        return Exception { OperationError };

    Vector<uint8_t> cipherText(keyLength / 8); // Per Step 3.c of https://tools.ietf.org/html/rfc3447#section-7.1.1
    size_t cipherTextLength = cipherText.size();
    if (CCRSACryptorEncrypt(key, ccOAEPPadding, data, dataLength, cipherText.data(), &cipherTextLength, label.data(), label.size(), digestAlgorithm))
        return Exception { OperationError };

    return WTFMove(cipherText);
}

Example #2

File: CryptoAlgorithmRSA_OAEPMac.cpp Project: edcwconan/webkit

void CryptoAlgorithmRSA_OAEP::platformEncrypt(const CryptoAlgorithmRsaOaepParams& parameters, const CryptoKeyRSA& key, const CryptoOperationData& data, VectorCallback&& callback, VoidCallback&& failureCallback, ExceptionCode& ec)
{
    CCDigestAlgorithm digestAlgorithm;
    if (!getCommonCryptoDigestAlgorithm(parameters.hash, digestAlgorithm)) {
        ec = NOT_SUPPORTED_ERR;
        return;
    }

    Vector<uint8_t> cipherText(1024);
    size_t cipherTextLength = cipherText.size();
    ASSERT(parameters.hasLabel || parameters.label.isEmpty());
    CCCryptorStatus status = CCRSACryptorEncrypt(key.platformKey(), ccOAEPPadding, data.first, data.second, cipherText.data(), &cipherTextLength, parameters.label.data(), parameters.label.size(), digestAlgorithm);
    if (status) {
        failureCallback();
        return;
    }

    cipherText.resize(cipherTextLength);
    callback(cipherText);
}