From 94e8ef48dc6974f5893244623866f9461743e73a Mon Sep 17 00:00:00 2001
From: "John M. Schanck" <jschanck@uwaterloo.ca>
Date: Fri, 11 Sep 2020 12:47:03 -0400
Subject: [PATCH] remove unused function

---
 crypto_kem/hqc-128/avx2/bch.c | 30 ------------------------------
 crypto_kem/hqc-128/avx2/bch.h |  3 ---
 crypto_kem/hqc-192/avx2/bch.c | 30 ------------------------------
 crypto_kem/hqc-192/avx2/bch.h |  3 ---
 crypto_kem/hqc-256/avx2/bch.c | 30 ------------------------------
 crypto_kem/hqc-256/avx2/bch.h |  3 ---
 6 files changed, 99 deletions(-)

diff --git a/crypto_kem/hqc-128/avx2/bch.c b/crypto_kem/hqc-128/avx2/bch.c
index c8d0de8b..2aedd3eb 100644
--- a/crypto_kem/hqc-128/avx2/bch.c
+++ b/crypto_kem/hqc-128/avx2/bch.c
@@ -18,36 +18,6 @@ static void message_from_codeword(uint64_t *message, const uint64_t *codeword);
 static void compute_syndromes(__m256i *syndromes, const uint64_t *rcv);
 static void compute_roots(uint64_t *error, const uint16_t *sigma);
 
-/**
- * @brief Computes the values alpha^ij for decoding syndromes
- *
- * function to initialize a table which contains values alpha^ij for i in [0,N1[ and j in [1,2*PARAM_DELTA]
- * these values are used in order to compute the syndromes of the received word v(x)=v_0+v_1x+...+v_{n1-1}x^{n1-1}
- * value alpha^ij is stored in alpha_ij_table[2*PARAM_DELTA*i+j-1]
- * The syndromes are equal to v(alpha^k) for k in [1,2*PARAM_DELTA]
- * Size of the table is fixed to match 256 bit representation
- * Useless values are filled with 0.
- *
- * @param[in] exp Exp look-up-table of GF
- */
-void PQCLEAN_HQC128_AVX2_table_alphaij_generation(const uint16_t *exp) {
-    int32_t tmp_value;
-    int16_t *alpha_tmp;
-
-    // pre-computation of alpha^ij for i in [0, N1[ and j in [1, 2*PARAM_DELTA]
-    // see comment of alpha_ij_table_init() function.
-    for (uint16_t i = 0; i < PARAM_N1; ++i) {
-        tmp_value = 0;
-        alpha_tmp = table_alpha_ij + i * (PARAM_DELTA << 1);
-        for (uint16_t j = 0; j < (PARAM_DELTA << 1); j++) {
-            tmp_value = PQCLEAN_HQC128_AVX2_gf_mod(tmp_value + i);
-            alpha_tmp[j] = gf_exp[tmp_value];
-        }
-    }
-}
-
-
-
 /**
  * @brief Computes the error locator polynomial (ELP) sigma
  *
diff --git a/crypto_kem/hqc-128/avx2/bch.h b/crypto_kem/hqc-128/avx2/bch.h
index 894edb18..71bce756 100644
--- a/crypto_kem/hqc-128/avx2/bch.h
+++ b/crypto_kem/hqc-128/avx2/bch.h
@@ -15,7 +15,4 @@
 void PQCLEAN_HQC128_AVX2_bch_code_decode(uint64_t *message, uint64_t *vector);
 
 
-void PQCLEAN_HQC128_AVX2_table_alphaij_generation(const uint16_t *exp);
-
-
 #endif
diff --git a/crypto_kem/hqc-192/avx2/bch.c b/crypto_kem/hqc-192/avx2/bch.c
index 55ccb75a..567d29cf 100644
--- a/crypto_kem/hqc-192/avx2/bch.c
+++ b/crypto_kem/hqc-192/avx2/bch.c
@@ -18,36 +18,6 @@ static void message_from_codeword(uint64_t *message, const uint64_t *codeword);
 static void compute_syndromes(__m256i *syndromes, const uint64_t *rcv);
 static void compute_roots(uint64_t *error, const uint16_t *sigma);
 
-/**
- * @brief Computes the values alpha^ij for decoding syndromes
- *
- * function to initialize a table which contains values alpha^ij for i in [0,N1[ and j in [1,2*PARAM_DELTA]
- * these values are used in order to compute the syndromes of the received word v(x)=v_0+v_1x+...+v_{n1-1}x^{n1-1}
- * value alpha^ij is stored in alpha_ij_table[2*PARAM_DELTA*i+j-1]
- * The syndromes are equal to v(alpha^k) for k in [1,2*PARAM_DELTA]
- * Size of the table is fixed to match 256 bit representation
- * Useless values are filled with 0.
- *
- * @param[in] exp Exp look-up-table of GF
- */
-void PQCLEAN_HQC192_AVX2_table_alphaij_generation(const uint16_t *exp) {
-    int32_t tmp_value;
-    int16_t *alpha_tmp;
-
-    // pre-computation of alpha^ij for i in [0, N1[ and j in [1, 2*PARAM_DELTA]
-    // see comment of alpha_ij_table_init() function.
-    for (uint16_t i = 0; i < PARAM_N1; ++i) {
-        tmp_value = 0;
-        alpha_tmp = table_alpha_ij + i * (PARAM_DELTA << 1);
-        for (uint16_t j = 0; j < (PARAM_DELTA << 1); j++) {
-            tmp_value = PQCLEAN_HQC192_AVX2_gf_mod(tmp_value + i);
-            alpha_tmp[j] = gf_exp[tmp_value];
-        }
-    }
-}
-
-
-
 /**
  * @brief Computes the error locator polynomial (ELP) sigma
  *
diff --git a/crypto_kem/hqc-192/avx2/bch.h b/crypto_kem/hqc-192/avx2/bch.h
index fa21f293..a5123876 100644
--- a/crypto_kem/hqc-192/avx2/bch.h
+++ b/crypto_kem/hqc-192/avx2/bch.h
@@ -15,7 +15,4 @@
 void PQCLEAN_HQC192_AVX2_bch_code_decode(uint64_t *message, uint64_t *vector);
 
 
-void PQCLEAN_HQC192_AVX2_table_alphaij_generation(const uint16_t *exp);
-
-
 #endif
diff --git a/crypto_kem/hqc-256/avx2/bch.c b/crypto_kem/hqc-256/avx2/bch.c
index 6d41f9c3..73d84d67 100644
--- a/crypto_kem/hqc-256/avx2/bch.c
+++ b/crypto_kem/hqc-256/avx2/bch.c
@@ -18,36 +18,6 @@ static void message_from_codeword(uint64_t *message, const uint64_t *codeword);
 static void compute_syndromes(__m256i *syndromes, const uint64_t *rcv);
 static void compute_roots(uint64_t *error, const uint16_t *sigma);
 
-/**
- * @brief Computes the values alpha^ij for decoding syndromes
- *
- * function to initialize a table which contains values alpha^ij for i in [0,N1[ and j in [1,2*PARAM_DELTA]
- * these values are used in order to compute the syndromes of the received word v(x)=v_0+v_1x+...+v_{n1-1}x^{n1-1}
- * value alpha^ij is stored in alpha_ij_table[2*PARAM_DELTA*i+j-1]
- * The syndromes are equal to v(alpha^k) for k in [1,2*PARAM_DELTA]
- * Size of the table is fixed to match 256 bit representation
- * Useless values are filled with 0.
- *
- * @param[in] exp Exp look-up-table of GF
- */
-void PQCLEAN_HQC256_AVX2_table_alphaij_generation(const uint16_t *exp) {
-    int32_t tmp_value;
-    int16_t *alpha_tmp;
-
-    // pre-computation of alpha^ij for i in [0, N1[ and j in [1, 2*PARAM_DELTA]
-    // see comment of alpha_ij_table_init() function.
-    for (uint16_t i = 0; i < PARAM_N1; ++i) {
-        tmp_value = 0;
-        alpha_tmp = table_alpha_ij + i * (PARAM_DELTA << 1);
-        for (uint16_t j = 0; j < (PARAM_DELTA << 1); j++) {
-            tmp_value = PQCLEAN_HQC256_AVX2_gf_mod(tmp_value + i);
-            alpha_tmp[j] = gf_exp[tmp_value];
-        }
-    }
-}
-
-
-
 /**
  * @brief Computes the error locator polynomial (ELP) sigma
  *
diff --git a/crypto_kem/hqc-256/avx2/bch.h b/crypto_kem/hqc-256/avx2/bch.h
index e75f5279..03c00931 100644
--- a/crypto_kem/hqc-256/avx2/bch.h
+++ b/crypto_kem/hqc-256/avx2/bch.h
@@ -15,7 +15,4 @@
 void PQCLEAN_HQC256_AVX2_bch_code_decode(uint64_t *message, uint64_t *vector);
 
 
-void PQCLEAN_HQC256_AVX2_table_alphaij_generation(const uint16_t *exp);
-
-
 #endif