diff options
Diffstat (limited to 'src/Encryption.cpp')
-rw-r--r-- | src/Encryption.cpp | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/Encryption.cpp b/src/Encryption.cpp new file mode 100644 index 0000000..8e87a8d --- /dev/null +++ b/src/Encryption.cpp @@ -0,0 +1,30 @@ +#include "../include/Encryption.hpp" +#include <sodium/crypto_stream_xchacha20.h> +#include <sodium/randombytes.h> +#include <string> + +namespace odhtdb +{ + void generateEncryptionKey(EncryptionKey *output) + { + if(!output) return; + crypto_stream_xchacha20_keygen((unsigned char*)output); + } + + int encrypt(EncryptedData *output, const EncryptionKey *key, const void *data, size_t dataSize) + { + if(!output || !key) return -1; + if(dataSize == 0) return 0; + output->data.resize(dataSize); + randombytes_buf(output->nonce, NONCE_BYTE_SIZE); + return crypto_stream_xchacha20_xor((unsigned char*)&output->data[0], (const unsigned char*)data, dataSize, (const unsigned char*)output->nonce, (const unsigned char*)key); + } + + int decrypt(std::string *output, const EncryptionKey *key, const EncryptedData *encryptedData) + { + if(!encryptedData || !key || !output) return -1; + if(encryptedData->data.empty()) return 0; + output->resize(encryptedData->data.size()); + return crypto_stream_xchacha20_xor((unsigned char*)&(*output)[0], (const unsigned char*)&encryptedData->data[0], encryptedData->data.size(), (const unsigned char*)encryptedData->nonce, (const unsigned char*)key); + } +} |