550     size_t outlen;  in Finish()  local
551     if (EVP_PKEY_encrypt(ctx.get(), nullptr /* out */, &outlen, data_.peek_read(),  in Finish()
555     if (!output->Reinitialize(outlen))  in Finish()
561     if (padding_ == KM_PAD_NONE && to_encrypt_len < outlen) {  in Finish()
562         keymaster_error_t error = zero_pad_left(&zero_padded, outlen, data_);  in Finish()
566         to_encrypt_len = outlen;  in Finish()
569     if (EVP_PKEY_encrypt(ctx.get(), output->peek_write(), &outlen, to_encrypt, to_encrypt_len) <= 0)  in Finish()
571     if (!output->advance_write(outlen))  in Finish()
603     size_t outlen;  in Finish()  local
604     if (EVP_PKEY_decrypt(ctx.get(), nullptr /* out */, &outlen, data_.peek_read(),  in Finish()
608     if (!output->Reinitialize(outlen))  in Finish()
614     if (padding_ == KM_PAD_NONE && to_decrypt_len < outlen) {  in Finish()
615         keymaster_error_t error = zero_pad_left(&zero_padded, outlen, data_);  in Finish()
619         to_decrypt_len = outlen;  in Finish()
622     if (EVP_PKEY_decrypt(ctx.get(), output->peek_write(), &outlen, to_decrypt, to_decrypt_len) <= 0)  in Finish()
624     if (!output->advance_write(outlen))  in Finish()