lwc-finalists/internal-romulus_8h_source.html

 /*

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 #ifndef LW_INTERNAL_ROMULUS_H

 #define LW_INTERNAL_ROMULUS_H


 #include "internal-skinny-plus.h"


 #ifdef __cplusplus

 extern "C" {

 #endif


 #define romulus_set_domain(ks, domain) ((ks)->TK1[7] = (domain))


 void romulus_update_counter(uint8_t TK1[16]);


 void romulus_schedule_init

     (skinny_plus_key_schedule_t *ks,

      const unsigned char *k, const unsigned char *npub);


 void romulus_rho

     (unsigned char S[16], unsigned char C[16], const unsigned char M[16]);


 void romulus_rho_inverse

     (unsigned char S[16], unsigned char M[16], const unsigned char C[16]);


 void romulus_rho_short

     (unsigned char S[16], unsigned char C[16],

      const unsigned char M[16], unsigned len);


 void romulus_rho_inverse_short

     (unsigned char S[16], unsigned char M[16],

      const unsigned char C[16], unsigned len);


 void romulus_generate_tag(unsigned char T[16], const unsigned char S[16]);


 #ifdef __cplusplus

 }

 #endif


 #endif

romulus_update_counter
void romulus_update_counter(uint8_t TK1[16])
Updates the 56-bit LFSR block counter for Romulus-N, M, and T.
Definition: internal-romulus.c:26

internal-skinny-plus.h
SKINNY-128-384+ block cipher.

romulus_schedule_init
void romulus_schedule_init(skinny_plus_key_schedule_t *ks, const unsigned char *k, const unsigned char *npub)
Initializes the key schedule for Romulus-N, M, or T.
Definition: internal-romulus.c:39

romulus_rho_inverse
void romulus_rho_inverse(unsigned char S[16], unsigned char M[16], const unsigned char C[16])
Applies the inverse of the Romulus rho function.
Definition: internal-romulus.c:60

romulus_rho_short
void romulus_rho_short(unsigned char S[16], unsigned char C[16], const unsigned char M[16], unsigned len)
Applies the Romulus rho function to a short block.
Definition: internal-romulus.c:72

romulus_rho
void romulus_rho(unsigned char S[16], unsigned char C[16], const unsigned char M[16])
Applies the Romulus rho function.
Definition: internal-romulus.c:48

romulus_generate_tag
void romulus_generate_tag(unsigned char T[16], const unsigned char S[16])
Generates the authentication tag from the rolling Romulus state.
Definition: internal-romulus.c:99

skinny_plus_key_schedule_t
Structure of the key schedule for SKINNY-128-384+.
Definition: internal-skinny-plus.h:55

romulus_rho_inverse_short
void romulus_rho_inverse_short(unsigned char S[16], unsigned char M[16], const unsigned char C[16], unsigned len)
Applies the inverse of the Romulus rho function to a short block.
Definition: internal-romulus.c:86