Fix for C keygen tool RSA len variable and the ED25519 generated key. Added description to C sign defaults. Added template Cypress PSoC6 configuration file.

Author: dgarske

config/examples/cypsoc6.config

@@ -0,0 +1,30 @@
+ARCH?=ARM
+TARGET?=psoc6
+SIGN?=ED25519
+HASH?=SHA256
+CYPRESS_PDL?=./lib/psoc6pdl
+CYPRESS_TARGET_LIB?=./lib/TARGET_CY8CKIT-062S2-43012
+CYPRESS_CORE_LIB?=./lib/core-lib
+DEBUG?=1
+VTOR?=1
+CORTEX_M0?=1
+NO_ASM?=0
+EXT_FLASH?=0
+SPI_FLASH?=0
+NO_XIP?=0
+UART_FLASH?=0
+ALLOW_DOWNGRADE?=0
+NVM_FLASH_WRITEONCE?=1
+WOLFBOOT_VERSION?=0
+V?=0
+SPMATH?=1
+RAM_CODE?=0
+DUALBANK_SWAP?=0
+IMAGE_HEADER_SIZE?=256
+PKA?=1
+WOLFTPM?=0
+WOLFBOOT_PARTITION_SIZE?=0x80000
+WOLFBOOT_SECTOR_SIZE?=4096
+WOLFBOOT_PARTITION_BOOT_ADDRESS?=0x10080000
+WOLFBOOT_PARTITION_UPDATE_ADDRESS?=0x10100000
+WOLFBOOT_PARTITION_SWAP_ADDRESS?=10010000

docs/Targets.md

@@ -583,14 +583,16 @@ wolfBoot configures PLL1 to run at 100 MHz and is driving `CLK_FAST`, `CLK_PERI`
 The following configuration has been tested on the PSoC CY8CKIT-62S2-43012:
 
 ```
-make TARGET=psoc6
-    NVM_FLASH_WRITEONCE=1
-    CYPRESS_PDL=/home/dan/src/psoc6pdl
-    CYPRESS_TARGET_LIB=/home/dan/src/TARGET_CY8CKIT-062S2-43012
-    CYPRESS_CORE_LIB=/home/dan/src/core-lib
+make TARGET=psoc6 \
+    NVM_FLASH_WRITEONCE=1 \
+    CYPRESS_PDL=./lib/psoc6pdl \
+    CYPRESS_TARGET_LIB=./lib/TARGET_CY8CKIT-062S2-43012 \
+    CYPRESS_CORE_LIB=./lib/core-lib \
     WOLFBOOT_SECTOR_SIZE=4096
 ```
 
+Note: A reference `.config` can be found in `./config/examples/cypsoc6.config`.
+
 #### OpenOCD installation
 
 Compile and install the customized OpenOCD.

tools/keytools/keygen.c

@@ -130,7 +130,6 @@ static void keygen_rsa(WC_RNG *rng, char *pubkeyfile, int size)
         exit(4);
     }
     fwrite(priv_der, privlen, 1, fpriv);
-    fwrite(pub, 32, 1, fpriv);
     fclose(fpriv);
 
     fpub = fopen(pubkeyfile, "w");
@@ -146,7 +145,7 @@ static void keygen_rsa(WC_RNG *rng, char *pubkeyfile, int size)
 
     fwritekey(pub_der, publen, fpub);
     fprintf(fpub, "\n};\n");
-    fprintf(fpub, "const uint32_t ecc256_pub_key_len = %d;\n", publen);
+    fprintf(fpub, "const uint32_t rsa%d_pub_key_len = %d;\n", size, publen);
     fclose(fpub);
 }
 #endif
@@ -233,6 +232,7 @@ static void keygen_ed25519(WC_RNG *rng, char *pubkfile)
         exit(3);
     }
     fwrite(priv, 32, 1, fpriv);
+    fwrite(pub, 32, 1, fpriv);
     fclose(fpriv);
     fpub = fopen(pubkfile, "w");
     if (fpub == NULL) {

tools/keytools/sign.c

@@ -126,8 +126,8 @@ int main(int argc, char** argv)
     const char* signature_file = NULL;
     char output_image_file[PATH_MAX];
     char* tmpstr;
-    const char* sign_str = NULL;
-    const char* hash_str = NULL;
+    const char* sign_str = "AUTO";
+    const char* hash_str = "SHA256";
     FILE *f, *f2;
     uint8_t* key_buffer = NULL;
     size_t   key_buffer_sz = 0;