29 lines
714 B
C++
29 lines
714 B
C++
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#include "crypto/crypto.h"
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#include <openssl/aes.h>
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#include <algorithm>
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#include <cstdint>
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namespace rootcanal::crypto {
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/* This function computes AES_128(key, message) */
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Octet16 aes_128(const Octet16& key, const Octet16& message) {
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Octet16 key_reversed;
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Octet16 message_reversed;
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Octet16 output;
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std::reverse_copy(key.begin(), key.end(), key_reversed.begin());
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std::reverse_copy(message.begin(), message.end(), message_reversed.begin());
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AES_KEY aes_key;
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(void)AES_set_encrypt_key(key_reversed.data(), 128, &aes_key);
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(void)AES_encrypt(message_reversed.data(), output.data(), &aes_key);
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std::reverse(output.begin(), output.end());
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return output;
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}
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} // namespace rootcanal::crypto
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