cgl_hash.h File Reference

#include "isogeny_walks.h"

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Data Structures
struct	cgl_hash_2_ctx
struct	cgl_hash_3_ctx

Typedefs
typedef struct cgl_hash_2_ctx	cgl_hash_2_ctx
typedef struct cgl_hash_3_ctx	cgl_hash_3_ctx

Functions
void	cgl_hash_init_2 (cgl_hash_2_ctx *ctx, fp2_t input_A)
void	cgl_hash_digest_2 (fp2_t *output, const cgl_hash_2_ctx *ctx, const uint8_t *input_bitstring)
void	cgl_hash_init_3 (cgl_hash_3_ctx *ctx, fp2_t input_A, uint8_t choice)
void	cgl_hash_digest_3 (fp2_t *output, const cgl_hash_3_ctx *ctx, const uint8_t *input_trit_string)

Typedef Documentation

cgl_hash_2_ctx

typedef struct cgl_hash_2_ctx cgl_hash_2_ctx

cgl_hash_3_ctx

typedef struct cgl_hash_3_ctx cgl_hash_3_ctx

Function Documentation

cgl_hash_digest_2()

void cgl_hash_digest_2	(	fp2_t *	output,
		const cgl_hash_2_ctx *	ctx,
		const uint8_t *	input_bitstring )

Definition at line 9 of file cgl_hash.c.

                                                                                                 {
    fp2_set_to_zero(output);
 
    isogeny_walks_2(output, ctx->j_, ctx->j0, input_bitstring, BIT_LENGTH_PATH);
}

References BIT_LENGTH_PATH, fp2_set_to_zero(), isogeny_walks_2(), cgl_hash_2_ctx::j0, and cgl_hash_2_ctx::j_.

Referenced by main().

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cgl_hash_digest_3()

void cgl_hash_digest_3	(	fp2_t *	output,
		const cgl_hash_3_ctx *	ctx,
		const uint8_t *	input_trit_string )

Definition at line 23 of file cgl_hash.c.

                                                                                                   {
    fp2_t a1, a3;
    fp2_set_to_zero(output);
 
    isogeny_walks_3(&a1, &a3, ctx->a1, ctx->a3, input_trit_string, TRITLENGTH_PATH);
    isogeny_walks_switch_from_model_3(output, a1, a3);
}

References a1, cgl_hash_3_ctx::a1, a3, cgl_hash_3_ctx::a3, fp2_set_to_zero(), isogeny_walks_3(), isogeny_walks_switch_from_model_3(), and TRITLENGTH_PATH.

Referenced by main().

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cgl_hash_init_2()

void cgl_hash_init_2	(	cgl_hash_2_ctx *	ctx,
		fp2_t	input_A )

Definition at line 16 of file cgl_hash.c.

                                                         {
    isogeny_walks_from_montgomery_model_2(&ctx->j0, input_A);
    isogeny_walks_get_previous_step_2(&ctx->j_, input_A);
}

References isogeny_walks_from_montgomery_model_2(), isogeny_walks_get_previous_step_2(), cgl_hash_2_ctx::j0, and cgl_hash_2_ctx::j_.

Referenced by main().

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cgl_hash_init_3()

void cgl_hash_init_3	(	cgl_hash_3_ctx *	ctx,
		fp2_t	input_A,
		uint8_t	choice )

Definition at line 32 of file cgl_hash.c.

                                                                         {
    fp2_t xP[4];
    isogeny_walks_get_points_3(xP, input_A);
    isogeny_walks_from_montgomery_model_3(&ctx->a1, &ctx->a3, input_A, xP[choice % 4]);
}

References cgl_hash_3_ctx::a1, cgl_hash_3_ctx::a3, isogeny_walks_from_montgomery_model_3(), and isogeny_walks_get_points_3().

Referenced by main().

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