c

eth_signing_sbtw.log

@@ -124,7 +124,7 @@ The Chain ID associated with your current session is 11155111. Would you like to
 Would you like to sign this transaction? [y/n] y
 
 [info] Unlocking address '0x47Ea71715F8049B80eD5C20d105e9C5D7631113f' (with aliases ['default-sender'] on chain with ID 11155111).
-Enter passphrase or hex private key foa0r address '0x47Ea71715F8049B80eD5C20d105e9C5D7631113f': *******
+Enter passphrase or hex private key for address '0x47Ea71715F8049B80eD5C20d105e9C5D7631113f': *******
 [info] No wallet available. Trying passphrase as hex private key.
 Bad credential for address '0x47Ea71715F8049B80eD5C20d105e9C5D7631113f'. Please try again. <ctrl-d> aborts.
 Enter passphrase or hex private key for address '0x47Ea71715F8049B80eD5C20d105e9C5D7631113f': *******

src/main.c

@@ -29,18 +29,18 @@ int main() {
 
     // ***************when coins in account****************************//
 
-    const char *unsigned_txn_hex = "e903850c9f71f523826349946b61fd05fa7e73c2de6b1999a390fee25210907287470de4df8200008180";
+    // const char *unsigned_txn_hex = "e903850c9f71f523826349946b61fd05fa7e73c2de6b1999a390fee25210907287470de4df8200008180";
 
-    printf("\nunsigned txn[%d bytes] : %s\n", strlen(unsigned_txn_hex)/2, unsigned_txn_hex);
+    // printf("\nunsigned txn[%d bytes] : %s\n", strlen(unsigned_txn_hex)/2, unsigned_txn_hex);
 
-    // get unsigned txn bytearray
-    size_t unsigned_txn_len = strlen(unsigned_txn_hex) / 2;
-    uint8_t unsigned_txn[unsigned_txn_len]; 
-    print_hexarr("unsigned txn", unsigned_txn_hex, unsigned_txn_len, unsigned_txn);
+    // // get unsigned txn bytearray
+    // size_t unsigned_txn_len = strlen(unsigned_txn_hex) / 2;
+    // uint8_t unsigned_txn[unsigned_txn_len]; 
+    // print_hexarr("unsigned txn", unsigned_txn_hex, unsigned_txn_len, unsigned_txn);
 
-    // uint8_t unsigned_txn[200];
-    // int unsigned_txn_len = generate_unsigned_txn(public_key, pubkey_len, unsigned_txn);
-    // print_arr("unsigned txn", unsigned_txn, unsigned_txn_len);
+    uint8_t unsigned_txn[200];
+    int unsigned_txn_len = generate_unsigned_txn(public_key, pubkey_len, unsigned_txn);
+    print_arr("unsigned txn", unsigned_txn, unsigned_txn_len);
 
     // Calculate Keccak-256 hash of the transaction
     // const int n_unsigned_txn_len = 1+unsigned_txn_len+3;
@@ -88,7 +88,7 @@ int main() {
     print_arr("s", s, 32);
 
     uint8_t signed_txn[120];
-    generate_signed_txn(unsigned_txn, v, r, s, unsigned_txn_len-1, signed_txn);
+    generate_signed_txn(unsigned_txn, v, r, s, unsigned_txn_len, signed_txn);
 
     // get uncompressed public key from the original seed
     const int pubkey_uncompressed_len = 65;

src/utility.c

@@ -11,11 +11,12 @@ const char* m446000_pubkey = "02ea988cd5d2bfbc11dd37a882565517aa2fa45a0c4dc4bff5
 const char* m4460000_pubkey = "024eb7a0fb5db32746a28adf81a24daa5312d351c5af8ee957d04c9f443825b806";
 
 // 6 parameters
-const char* nonce = "02";//"932A3F";// "932A3F"; // 9644606+1
-const char* gasPrice = "051f4d5c00"; //22 gwei
-const char* gasLimit = "55F0"; // 22000
-const char* toAddress = "6B61fd05FA7e73c2de6B1999A390Fee252109072";// "bbe6e5ad6bdbf22b284870493893b7c0addcb405" "47Ea71715F8049B80eD5C20d105e9C5D7631113f";
-const char* valueTrans = "071afd498d0000"; // 0.002 ETH
+const char* nonce = "03";//"932A3F";// "932A3F"; // 9644606+1
+const char* gasPrice = "0c9f71f523"; //54.214653219 gwei
+const char* gasLimit = "6349"; // 25417
+const char* toAddress = "6B61fd05FA7e73c2de6B1999A390Fee252109072";// "47Ea71715F8049B80eD5C20d105e9C5D7631113f";
+const char* valueTrans = "470de4df820000"; // 0.02 ETH
+const char* data = "80"; // 0.02 ETH
 const int chain_id = 11155111; // sepolia
 
 uint8_t* rlp(int data_size, const char* data_hex, uint8_t* packet){
@@ -65,19 +66,17 @@ int generate_unsigned_txn(uint8_t* public_key, size_t pubkey_len, uint8_t* unsig
     //     'value': 500000000000000000, 
     //     'yParity': 1}
 
-    size_t unsigned_txn_len = 1+ (((strlen(nonce)+strlen(gasPrice)+strlen(gasLimit)+strlen(toAddress)+strlen(valueTrans))/2)+5) + 1 + 5 + 2;
+    // size_t unsigned_txn_len = 1+ (((strlen(nonce)+strlen(gasPrice)+strlen(gasLimit)+strlen(toAddress)+strlen(valueTrans)+(strlen(data))/2)+6) + 1 + 2;
 
-    unsigned_txn[unsigned_txn_len];
-    memzero(unsigned_txn, unsigned_txn_len);
+    unsigned_txn[200];
+    memzero(unsigned_txn, 200);
 
     int i=0, r=0; uint8_t packet[30];
-    unsigned_txn[i] = 0xc0 + unsigned_txn_len-1; // rest packet length
-    i += 1;
-
+    i += 1; // 1st field
 
     r = strlen(nonce)/2;
     if (r==1){
-        unsigned_txn[i] = 0x02;    // nonce 1
+        unsigned_txn[i] = 0x03;    // nonce 1
         i += 1;
     } else {
         memcpy(unsigned_txn+i, rlp(r, nonce, packet), r+1); // nonce multi
@@ -100,10 +99,16 @@ int generate_unsigned_txn(uint8_t* public_key, size_t pubkey_len, uint8_t* unsig
     memcpy(unsigned_txn+i, rlp(r, valueTrans, packet), r+1); // value
     i += r+1;
 
-    unsigned_txn[i] = 0x80; // data
-    i += 1;
-
-    uint32_t v = 28;//35 + (chain_id*2); // v
+    r = strlen(data)/2;
+    if (r<1){
+        unsigned_txn[i] = 0x80; // data 1
+        i += 1;
+    } else {
+        memcpy(unsigned_txn+i, rlp(r, data, packet), r+1); // data multi
+        i += r+1; 
+    }
+
+    uint32_t v = 36 + (chain_id*2); // v
     unsigned_txn[i] = 0x84; i+=1;
     unsigned_txn[i] = (uint8_t)((v >> 24) & 0xFF); i+=1;
     unsigned_txn[i] = (uint8_t)((v >> 16) & 0xFF); i+=1;
@@ -116,7 +121,10 @@ int generate_unsigned_txn(uint8_t* public_key, size_t pubkey_len, uint8_t* unsig
     unsigned_txn[i] = 0x80; // s
     i += 1;
 
-    return i;
+    i -= 1; // remove the previous updated index
+    unsigned_txn[0] = 0xc0 + i; // 1st field = packet length
+
+    return i+1;
 }
 
 void hash256(uint8_t* data, uint8_t* output, size_t size) {
@@ -225,9 +233,9 @@ void generate_signed_txn(uint8_t* unsigned_txn, uint32_t v, uint8_t* r, uint8_t*
 
     print_arr("packet", packet, packet_len);
 
-    int unsigned_txn_data_len =  unsigned_txn_len-1 -5 -2;
+    int unsigned_txn_data_len = -1 + unsigned_txn_len -5 -2;
 
-    unsigned_txn_data_len = unsigned_txn_len;
+    // unsigned_txn_data_len = unsigned_txn_len;
 
     const int signed_txn_len = 1 + 1 + unsigned_txn_data_len + packet_len; // <length of length field + length field + unsigned_txn_len + packet vrs>
     signed_txn[signed_txn_len];
@@ -285,6 +293,18 @@ void generate_signed_txn(uint8_t* unsigned_txn, uint32_t v, uint8_t* r, uint8_t*
 // a0 5676ea98bc0700961e68c2ec5d1a99cba5e423c23e2691b616f19dc7da8d849e
 // a0 174ec346c4d2c02588ee73f47405da4bd39051492fb6036f8522099488e01e8b
 
+// f8
+// 70
+// 03
+// 85 0c9f71f523
+// 82 6349
+// 94 6b61fd05fa7e73c2de6b1999a390fee252109072
+// 87 470de4df820000
+// 81 80
+// 84 01546d72
+// a0 e8609f77bfb6611efed7561cbcacf279bd3d5d638686e64134f27630c5d48291
+// a0 498eeafc7de764ec0e5a988325cfa018f5277e9138381ba0ec519316a4cfec70
+
 // f8
 // 70
 // 03
@@ -297,6 +317,17 @@ void generate_signed_txn(uint8_t* unsigned_txn, uint32_t v, uint8_t* r, uint8_t*
 // a0 c78a06dc321d7bf2c803576d5832a352a317eeb24e7f008f17940fa86c378dfa
 // a0 5582556d70f261d6aaad4abcd88e4a71a246ba05858fce4ea9a12fe18015359c
 
+// f8
+// 6e
+// 03
+// 850c9f71f523
+// 826349
+// 946b61fd05fa7e73c2de6b1999a390fee252109072
+// 87470de4df820000
+// 8401546d71
+// a0da012c2eda51d2b416145e6918338024b6064c3294bd2b5aa015bdc01dd011da
+// a043e97e6347f7f3cf1e1aeb4acbc590a8b9859b3df3748f240effacf5017081da
+
 // 02 // hash function type kecceb256
 
 // f8 // length of length field

test/broadcast_signed_txn.py

@@ -8,15 +8,15 @@
 
 web3 = Web3(Web3.HTTPProvider(api))
 
-transaction = web3.eth.get_transaction(txnID)
+# transaction = web3.eth.get_transaction(txnID)
 
 # Sender address
 sender_address = "0x47Ea71715F8049B80eD5C20d105e9C5D7631113f"
 recipient_address = "0x6B61fd05FA7e73c2de6B1999A390Fee252109072"
-gas_price = web3.to_wei("22", "gwei")
-gas_limit = 22000
-value = web3.to_wei("0.002", "ether")
-nonce = web3.eth.get_transaction_count(sender_address)
+gas_price = web3.to_wei("54214653219", "wei")
+gas_limit = 25417
+value = web3.to_wei("0.02", "ether")
+nonce = 3 #web3.eth.get_transaction_count(sender_address)
 chain_id = 11155111  # sepolia
 
 # # Get and determine gas parameters
@@ -34,6 +34,7 @@
     'nonce': nonce,
     'gas': gas_limit,  # Gas limit for the transaction
     'gasPrice': gas_price,
+    'data': '0x80',
     'chainId': chain_id # ChainId of Sepolia Testnet
 }
 

test/encode_unsignedtxn.py

@@ -38,5 +38,5 @@ def encode_ethereum_transaction(recipient_address, value, gas_limit, gas_price,
 
 # Get the hex representation of the unsigned transaction
 print("Unsigned Transaction Hex:", dir(unsigned_transaction))
-unsigned_transaction_hex = unsigned_transaction.serialize()
+unsigned_transaction_hex = unsigned_transaction.hex()
 print("Unsigned Transaction Hex:", unsigned_transaction_hex)

test/get_signed_eth_txn.py

@@ -9,4 +9,6 @@
 
 print(f"v: {hex(v)}")
 print(f"r: {hex(r)}")
-print(f"s: {hex(s)}")
+print(f"s: {hex(s)}")
+
+# 0xf87003850c9f71f523826349946b61fd05fa7e73c2de6b1999a390fee25210907287470de4df82000081808401546d71a05676ea98bc0700961e68c2ec5d1a99cba5e423c23e2691b616f19dc7da8d849ea0174ec346c4d2c02588ee73f47405da4bd39051492fb6036f8522099488e01e8b