rsa_key rsa_key::to_public_key() const
{
bio::bio_chain bio_chain(BIO_s_mem());
write_public_key(bio_chain.first());
return from_public_key(bio_chain.first());
}
size_t base64_decode(void* output, size_t outputlen, const void* input, size_t inputlen)
{
bio::bio_chain bio_chain(BIO_f_base64());
bio_chain.first().set_flags(BIO_FLAGS_BASE64_NO_NL);
bio_chain.first().push(BIO_new_mem_buf(const_cast<void*>(input), inputlen));
ptrdiff_t cnt = bio_chain.first().read(output, outputlen);
if (cnt <= 0)
{
throw std::runtime_error("Unable to perform base 64 decoding");
}
return static_cast<size_t>(cnt);
}
size_t base64_encode(void* output, size_t outputlen, const void* input, size_t inputlen)
{
bio::bio_chain bio_chain(BIO_f_base64());
bio_chain.first().set_flags(BIO_FLAGS_BASE64_NO_NL);
bio_chain.first().push(BIO_new(BIO_s_mem()));
ptrdiff_t cnt = bio_chain.first().write(input, inputlen);
if (cnt <= 0)
{
throw std::runtime_error("Unable to perform base 64 encoding");
}
bio_chain.first().flush();
BUF_MEM* b64ptr = bio_chain.first().next().get_mem_buf();
const size_t min_size = std::min(b64ptr->length, outputlen);
std::copy(static_cast<const char*>(b64ptr->data), static_cast<const char*>(b64ptr->data) + min_size, static_cast<char*>(output));
return min_size;
}
