QSC Post Quantum Cryptographic Library 1.3.0.0 (C1)
A post quantum secure library written in Ansi C
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tlsrecord.h
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1/* 2020-2026 Quantum Resistant Cryptographic Solutions Corporation
2 * All Rights Reserved.
3 *
4 * NOTICE:
5 * This software and all accompanying materials are the exclusive property of
6 * Quantum Resistant Cryptographic Solutions Corporation (QRCS). The intellectual
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10 *
11 * CRYPTOGRAPHIC ALGORITHMS AND IMPLEMENTATIONS:
12 * - This software includes implementations of cryptographic primitives and
13 * algorithms that are standardized or in the public domain, such as AES
14 * and SHA-3, which are not proprietary to QRCS.
15 * - This software also includes cryptographic primitives, constructions, and
16 * algorithms designed by QRCS, including but not limited to RCS, SCB, CSX, QMAC, and
17 * related components, which are proprietary to QRCS.
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19 * parameter selections, and engineering work contained in this software are
20 * original works of QRCS and are protected under this license.
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23 * - This software is licensed under the Quantum Resistant Cryptographic Solutions
24 * Public Research and Evaluation License (QRCS-PREL), 2025-2026.
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26 * cryptographic analysis, interoperability testing, and feasibility assessment.
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32 * EXPERIMENTAL CRYPTOGRAPHY NOTICE:
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41 * ARISING FROM THE USE OR MISUSE OF THIS SOFTWARE.
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43 * FULL LICENSE:
44 * This software is subject to the Quantum Resistant Cryptographic Solutions
45 * Public Research and Evaluation License (QRCS-PREL), 2025-2026. The complete license terms
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47 *
48 * Written by: John G. Underhill
49 * Contact: contact@qrcscorp.ca
50 */
51
52#ifndef QSC_TLS_RECORD_H
53#define QSC_TLS_RECORD_H
54
55#include "tlserrors.h"
56#include "tlstypes.h"
57#include "tlsstate.h"
58
59QSC_CPLUSPLUS_ENABLED_START
60
65
76 size_t keylen, const uint8_t* iv, size_t ivlen);
77
84
104 size_t keylen, const uint8_t* iv, size_t ivlen);
105
114
127QSC_EXPORT_API qsc_tls_status qsc_tls_record_encode_plaintext(uint8_t* output, size_t outlen, size_t* written, qsc_tls_record_content_type type,
128 const uint8_t* input, size_t inlen);
129
142 const uint8_t** payload, size_t* payloadlen);
143
154QSC_EXPORT_API qsc_tls_status qsc_tls_record_try_get_span_length(const uint8_t* input, size_t inlen, size_t* recordlen, bool* complete);
155
169QSC_EXPORT_API qsc_tls_status qsc_tls_record_encrypt(qsc_tls_record_state* state, uint8_t* output, size_t outlen, size_t* written,
170 qsc_tls_record_content_type inner_type, const uint8_t* input, size_t inlen);
171
185QSC_EXPORT_API qsc_tls_status qsc_tls_record_decrypt(qsc_tls_record_state* state, uint8_t* output, size_t outlen, size_t* written,
186 qsc_tls_record_content_type* inner_type, const uint8_t* input, size_t inlen);
187
188QSC_CPLUSPLUS_ENABLED_END
189
190#endif
#define QSC_EXPORT_API
API export macro for Microsoft compilers when importing from a DLL.
Definition qsccommon.h:645
Stores the active TLS traffic keying material and sequence number for one record direction.
Definition tlsstate.h:88
TLS status code definitions and diagnostic string conversion.
qsc_tls_status
Definition tlserrors.h:65
QSC_EXPORT_API qsc_tls_status qsc_tls_record_state_install_keys(qsc_tls_record_state *state, qsc_tls_cipher_suite suite, const uint8_t *key, size_t keylen, const uint8_t *iv, size_t ivlen)
Install or replace traffic keys on an existing record state, resetting the sequence.
Definition tlsrecord.c:217
QSC_EXPORT_API qsc_tls_status qsc_tls_record_decode_plaintext(const uint8_t *input, size_t inlen, qsc_tls_record_content_type *type, const uint8_t **payload, size_t *payloadlen)
Decode a plaintext TLS record.
Definition tlsrecord.c:312
QSC_EXPORT_API qsc_tls_status qsc_tls_record_decrypt(qsc_tls_record_state *state, uint8_t *output, size_t outlen, size_t *written, qsc_tls_record_content_type *inner_type, const uint8_t *input, size_t inlen)
Decrypt a protected TLSCiphertext record.
Definition tlsrecord.c:623
QSC_EXPORT_API qsc_tls_status qsc_tls_record_try_get_span_length(const uint8_t *input, size_t inlen, size_t *recordlen, bool *complete)
Determine the full span length of a TLS record.
Definition tlsrecord.c:395
QSC_EXPORT_API uint64_t qsc_tls_record_state_get_sequence(const qsc_tls_record_state *state)
Read the current sequence number. Returns 0 when state is NULL or uninitialized.
Definition tlsrecord.c:260
QSC_EXPORT_API qsc_tls_status qsc_tls_record_encode_plaintext(uint8_t *output, size_t outlen, size_t *written, qsc_tls_record_content_type type, const uint8_t *input, size_t inlen)
Encode a plaintext TLS record.
Definition tlsrecord.c:276
QSC_EXPORT_API qsc_tls_status qsc_tls_record_encrypt(qsc_tls_record_state *state, uint8_t *output, size_t outlen, size_t *written, qsc_tls_record_content_type inner_type, const uint8_t *input, size_t inlen)
Protect a TLSInnerPlaintext payload as a TLSCiphertext record.
Definition tlsrecord.c:445
QSC_EXPORT_API void qsc_tls_record_state_dispose(qsc_tls_record_state *state)
Dispose of a TLS record protection state.
Definition tlsrecord.c:207
QSC_EXPORT_API void qsc_tls_record_state_initialize(qsc_tls_record_state *state, qsc_tls_cipher_suite suite, const uint8_t *key, size_t keylen, const uint8_t *iv, size_t ivlen)
Initialize a TLS record protection state.
Definition tlsrecord.c:181
TLS internal state container type definitions shared across the record and handshake layers.
Public TLS type definitions.
qsc_tls_cipher_suite
TLS 1.3 cipher-suite identifiers.
Definition tlstypes.h:129
qsc_tls_record_content_type
TLS record content-type codes.
Definition tlstypes.h:81