signature.hpp

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#pragma once
 
#include <cstddef>
#include <cstdint>
 
namespace ndn {
 
enum class SignatureType : uint8_t {
    DigestSha256 = 0,              
    SignatureSha256WithRsa = 1,    
    SignatureSha256WithEcdsa = 3,  
    SignatureHmacWithSha256 = 4,   
    SignatureEd25519 = 5,          
};
 
constexpr size_t SHA256_DIGEST_SIZE = 32;       
constexpr size_t HMAC_SHA256_SIZE = 32;         
constexpr size_t ECDSA_P256_SIG_MAX_SIZE = 72;  
constexpr size_t ED25519_SIG_SIZE = 64;         
constexpr size_t RSA_2048_SIG_SIZE = 256;       
constexpr size_t SIGNATURE_MAX_SIZE = 72;  
constexpr size_t ECDSA_P256_PUBKEY_SIZE = 65;   
constexpr size_t ECDSA_P256_PRIVKEY_SIZE = 32;  
constexpr size_t ED25519_PUBKEY_SIZE = 32;      
constexpr size_t ED25519_PRIVKEY_SIZE = 32;     
constexpr const char* signatureTypeToString(SignatureType type) {
    switch (type) {
        case SignatureType::DigestSha256:
            return "DigestSha256";
        case SignatureType::SignatureSha256WithRsa:
            return "SignatureSha256WithRsa";
        case SignatureType::SignatureSha256WithEcdsa:
            return "SignatureSha256WithEcdsa";
        case SignatureType::SignatureHmacWithSha256:
            return "SignatureHmacWithSha256";
        case SignatureType::SignatureEd25519:
            return "SignatureEd25519";
        default:
            return "Unknown";
    }
}
 
}  // namespace ndn