audit_log_cipher.cpp File Reference

AES-256-GCM + HMAC-SHA256 envelope cipher for ATNA audit logs. More...

#include "kcenon/pacs/security/audit_log_cipher.h"
#include <algorithm>
#include <cstdlib>
#include <cstring>

Include dependency graph for audit_log_cipher.cpp:

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Namespaces
namespace	kcenon
namespace	kcenon::pacs
namespace	kcenon::pacs::security
namespace	kcenon::pacs::security::detail

Functions
std::string	kcenon::pacs::security::detail::base64_encode (const std::uint8_t *data, std::size_t size)
	Standard base64 encode (no line breaks)
bool	kcenon::pacs::security::detail::base64_decode (const std::string &in, std::vector< std::uint8_t > &out)
	Standard base64 decode; returns false on malformed input.
bool	kcenon::pacs::security::detail::hex_decode (const std::string &in, std::uint8_t *out, std::size_t out_size)
	Hex decode (lowercase or uppercase); returns false on malformed input.
bool	kcenon::pacs::security::detail::constant_time_equal (const std::uint8_t *a, const std::uint8_t *b, std::size_t n) noexcept
	Constant-time equality on byte buffers of equal length.

Detailed Description

AES-256-GCM + HMAC-SHA256 envelope cipher for ATNA audit logs.

See also

Issue #1102 (ISO 27799 §7.9 — Audit log confidentiality/integrity)

Definition in file audit_log_cipher.cpp.