tlssigalgs.h

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/* 2020-2026 Quantum Resistant Cryptographic Solutions Corporation
 * All Rights Reserved.
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 * Quantum Resistant Cryptographic Solutions Corporation (QRCS). The intellectual
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 * CRYPTOGRAPHIC ALGORITHMS AND IMPLEMENTATIONS:
 * - This software includes implementations of cryptographic primitives and
 *   algorithms that are standardized or in the public domain, such as AES
 *   and SHA-3, which are not proprietary to QRCS.
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 *   algorithms designed by QRCS, including but not limited to RCS, SCB, CSX, QMAC, and
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 * Public Research and Evaluation License (QRCS-PREL), 2025-2026. The complete license terms
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 * Written by: John G. Underhill
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 */
 
#ifndef QSC_TLS_SIGALGS_H
#define QSC_TLS_SIGALGS_H
 
#include "tlserrors.h"
#include "tlstypes.h"
#include "x509types.h"
 
QSC_CPLUSPLUS_ENABLED_START


typedef struct qsc_tls_signature_scheme_descriptor
{
    qsc_tls_signature_scheme scheme;    
    const char* name;                   
    qsc_tls_hash_algorithm hash;        
    size_t signaturesize;               
    bool supported;                     
    bool certificateverifycapable;      
    bool ispq;                          
    bool ismldsa;                       
} qsc_tls_signature_scheme_descriptor;

QSC_EXPORT_API const qsc_tls_signature_scheme_descriptor* qsc_tls_signature_scheme_descriptor_get(qsc_tls_signature_scheme scheme);

QSC_EXPORT_API bool qsc_tls_signature_scheme_is_supported(qsc_tls_signature_scheme scheme);

QSC_EXPORT_API bool qsc_tls_signature_scheme_is_certificate_verify_capable(qsc_tls_signature_scheme scheme);

QSC_EXPORT_API bool qsc_tls_signature_scheme_is_pq(qsc_tls_signature_scheme scheme);

QSC_EXPORT_API bool qsc_tls_signature_scheme_is_mldsa(qsc_tls_signature_scheme scheme);

QSC_EXPORT_API size_t qsc_tls_signature_scheme_private_key_size(qsc_tls_signature_scheme scheme);

QSC_EXPORT_API size_t qsc_tls_signature_scheme_public_key_size(qsc_tls_signature_scheme scheme);

QSC_EXPORT_API size_t qsc_tls_signature_scheme_signature_size(qsc_tls_signature_scheme scheme);

QSC_EXPORT_API bool qsc_tls_signature_scheme_validate_signature_length(qsc_tls_signature_scheme scheme, size_t signaturelen);

QSC_EXPORT_API qsc_x509_signature_algorithm qsc_tls_signature_scheme_x509_algorithm(qsc_tls_signature_scheme scheme);

QSC_EXPORT_API bool qsc_tls_signature_scheme_matches_x509_algorithm(qsc_tls_signature_scheme scheme, qsc_x509_signature_algorithm algorithm);

QSC_EXPORT_API qsc_tls_hash_algorithm qsc_tls_signature_scheme_hash(qsc_tls_signature_scheme scheme);

QSC_EXPORT_API const char* qsc_tls_signature_scheme_name(qsc_tls_signature_scheme scheme);
 
QSC_CPLUSPLUS_ENABLED_END
 
#endif