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https://github.com/sle118/squeezelite-esp32.git
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73 lines
2.4 KiB
C++
73 lines
2.4 KiB
C++
#ifndef BELL_CRYPTO_H
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#define BELL_CRYPTO_H
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#include <string> // for string
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#include <vector> // for vector
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#include <mbedtls/aes.h> // for mbedtls_aes_context
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#include <mbedtls/md.h> // for mbedtls_md_context_t
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#include <stddef.h> // for size_t
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#include <stdint.h> // for uint8_t
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#define DH_KEY_SIZE 96
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const static unsigned char DHPrime[] = {
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/* Well-known Group 1, 768-bit prime */
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0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc9, 0x0f, 0xda, 0xa2,
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0x21, 0x68, 0xc2, 0x34, 0xc4, 0xc6, 0x62, 0x8b, 0x80, 0xdc, 0x1c, 0xd1,
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0x29, 0x02, 0x4e, 0x08, 0x8a, 0x67, 0xcc, 0x74, 0x02, 0x0b, 0xbe, 0xa6,
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0x3b, 0x13, 0x9b, 0x22, 0x51, 0x4a, 0x08, 0x79, 0x8e, 0x34, 0x04, 0xdd,
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0xef, 0x95, 0x19, 0xb3, 0xcd, 0x3a, 0x43, 0x1b, 0x30, 0x2b, 0x0a, 0x6d,
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0xf2, 0x5f, 0x14, 0x37, 0x4f, 0xe1, 0x35, 0x6d, 0x6d, 0x51, 0xc2, 0x45,
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0xe4, 0x85, 0xb5, 0x76, 0x62, 0x5e, 0x7e, 0xc6, 0xf4, 0x4c, 0x42, 0xe9,
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0xa6, 0x3a, 0x36, 0x20, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
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class CryptoMbedTLS {
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private:
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mbedtls_md_context_t sha1Context;
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mbedtls_aes_context aesCtx;
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bool aesCtxInitialized = false;
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public:
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CryptoMbedTLS();
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~CryptoMbedTLS();
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// Base64
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static std::vector<uint8_t> base64Decode(const std::string& data);
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static std::string base64Encode(const std::vector<uint8_t>& data);
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// Sha1
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void sha1Init();
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void sha1Update(const std::string& s);
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void sha1Update(const std::vector<uint8_t>& vec);
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std::string sha1Final();
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std::vector<uint8_t> sha1FinalBytes();
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// HMAC SHA1
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std::vector<uint8_t> sha1HMAC(const std::vector<uint8_t>& inputKey,
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const std::vector<uint8_t>& message);
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// AES CTR
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void aesCTRXcrypt(const std::vector<uint8_t>& key, std::vector<uint8_t>& iv,
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uint8_t* data, size_t nbytes);
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// AES ECB
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void aesECBdecrypt(const std::vector<uint8_t>& key,
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std::vector<uint8_t>& data);
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// Diffie Hellman
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std::vector<uint8_t> publicKey;
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std::vector<uint8_t> privateKey;
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void dhInit();
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std::vector<uint8_t> dhCalculateShared(const std::vector<uint8_t>& remoteKey);
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// PBKDF2
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std::vector<uint8_t> pbkdf2HmacSha1(const std::vector<uint8_t>& password,
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const std::vector<uint8_t>& salt,
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int iterations, int digestSize);
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// Random stuff
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std::vector<uint8_t> generateVectorWithRandomData(size_t length);
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};
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#define Crypto CryptoMbedTLS
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#endif |