From bcc6ac6692240e54c587d1b6eb58c70ef5802537 Mon Sep 17 00:00:00 2001
From: Uros Majstorovic <majstor@majstor.org>
Date: Sun, 24 Mar 2024 13:39:33 +0100
Subject: implemented ROS recommendation CLN-003

---
 ecp/src/ecp/cr.h            |  4 ----
 ecp/src/ecp/crypto/crypto.c | 23 -----------------------
 ecp/src/ecp/crypto/crypto.h |  8 --------
 3 files changed, 35 deletions(-)

(limited to 'ecp')

diff --git a/ecp/src/ecp/cr.h b/ecp/src/ecp/cr.h
index c5046ed..f5a617d 100644
--- a/ecp/src/ecp/cr.h
+++ b/ecp/src/ecp/cr.h
@@ -15,8 +15,4 @@ int ecp_ecdsa_mkpair(ecp_ecdsa_public_t *pub, ecp_ecdsa_private_t *priv);
 int ecp_ecdsa_sign(ecp_ecdsa_signature_t *sig, unsigned char *m, size_t ml, ecp_ecdsa_private_t *k);
 int ecp_ecdsa_verify(unsigned char *m, size_t ml, ecp_ecdsa_signature_t *sig, ecp_ecdsa_public_t *p);
 
-int ecp_bc_key_gen(ecp_bc_ctx_t *key);
-void ecp_bc_encrypt_block(unsigned char *in, unsigned char *out, ecp_bc_ctx_t *key);
-void ecp_bc_decrypt_block(unsigned char *in, unsigned char *out, ecp_bc_ctx_t *key);
-
 void ecp_hmac(unsigned char *hd, ecp_hmac_key_t *k, unsigned char *m, size_t ml);
diff --git a/ecp/src/ecp/crypto/crypto.c b/ecp/src/ecp/crypto/crypto.c
index 8a78702..2909f47 100644
--- a/ecp/src/ecp/crypto/crypto.c
+++ b/ecp/src/ecp/crypto/crypto.c
@@ -104,29 +104,6 @@ int ecp_ecdsa_verify(unsigned char *m, size_t ml, ecp_ecdsa_signature_t *sig, ec
     return ECP_ERR_VERIFY;
 }
 
-int ecp_bc_key_gen(ecp_bc_ctx_t *key) {
-    unsigned char _key[ECP_SIZE_BC_KEY];
-    int rv;
-
-    arc4random_buf(_key, sizeof(_key));
-
-    rv = AES_set_encrypt_key(_key, ECP_SIZE_BC_KEY * 8, &key->ctx_enc);
-    if (rv < 0) return ECP_ERR;
-
-    rv = AES_set_decrypt_key(_key, ECP_SIZE_BC_KEY * 8, &key->ctx_dec);
-    if (rv < 0) return ECP_ERR;
-
-    return ECP_OK;
-}
-
-void ecp_bc_encrypt_block(unsigned char *in, unsigned char *out, ecp_bc_ctx_t *key) {
-    AES_encrypt(in, out, &key->ctx_enc);
-}
-
-void ecp_bc_decrypt_block(unsigned char *in, unsigned char *out, ecp_bc_ctx_t *key) {
-    AES_decrypt(in, out, &key->ctx_dec);
-}
-
 void ecp_hmac(unsigned char *hd, ecp_hmac_key_t *k, unsigned char *m, size_t ml) {
     unsigned char b[SHA_CBLOCK];
     unsigned char d[SHA_DIGEST_LENGTH];
diff --git a/ecp/src/ecp/crypto/crypto.h b/ecp/src/ecp/crypto/crypto.h
index f2986d0..1320fb8 100644
--- a/ecp/src/ecp/crypto/crypto.h
+++ b/ecp/src/ecp/crypto/crypto.h
@@ -1,4 +1,3 @@
-#include <openssl/aes.h>
 #include <openssl/sha.h>
 
 #define CURVE25519_SIZE_KEY     32
@@ -19,9 +18,6 @@
 #define ECP_SIZE_HMAC_KEY       32
 #define ECP_SIZE_HMAC_DIGEST    SHA_DIGEST_LENGTH
 
-#define ECP_SIZE_BC_KEY         16
-#define ECP_SIZE_BC_BLOCK       16
-
 typedef uint8_t ecp_ecdh_public_t[ECP_SIZE_ECDH_PUB];
 typedef uint8_t ecp_ecdh_private_t[ECP_SIZE_ECDH_SEC];
 typedef uint8_t ecp_aead_key_t[ECP_SIZE_AEAD_KEY];
@@ -30,10 +26,6 @@ typedef uint8_t ecp_ecdsa_public_t[ECP_SIZE_ECDSA_PUB];
 typedef uint8_t ecp_ecdsa_private_t[ECP_SIZE_ECDSA_SEC];
 typedef uint8_t ecp_ecdsa_signature_t[ECP_SIZE_ECDSA_SIG];
 typedef uint8_t ecp_hmac_key_t[ECP_SIZE_HMAC_KEY];
-typedef struct {
-    AES_KEY ctx_enc;
-    AES_KEY ctx_dec;
-} ecp_bc_ctx_t;
 
 int
 aead_chacha20_poly1305_seal(unsigned char key[32], unsigned char tag_len,
-- 
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