Clean up readme and fix addr generation

Author: mtps

README.md

@@ -9,20 +9,20 @@ go install github.com/provenance-io/extkey/cmd/extkey@latest
 ```
 # Using interactive mode
  ▷▷ extkey
-Mnemonic: 
+Mnemonic: fly fly comfort
 Passphrase: 
 HRP: tp
 HDPath: m/44'/1'/0'/420'
 
 
 RootKey Private: xprv9s21ZrQH143K2gAYPH8TS4wyWvQ4F99jm7cHbckUwKwvk75QpVx6VmqqZxgUno53xUWNbhnUy83RnPqSCa7hfKQFzmp1Lcsv2pp2PikLtHU
 RootKey Public : xpub661MyMwAqRbcFAF1VJfToCti4xEYebsb8LXtQ1A6VfUucuQZN3GM3aAKREjZt3ZFhQB2M5Le1FEfuhVQRQ8DgvmPkLjgKPMAFo5X923Ut1B
-Address: tp1qv846qztsd2uwwrk9e2ve53wewnhnz3ry7vzhfqjlkl6cd8endm8xxln0sv
+Address: tp148sw6szwkk3cj5fdudzyhamkj3juy0wx0pj2c0
 
 Path: m/44'/1'/0'/420'
 ChildKey Private: xprv9zqjpMDofQuSFaF8NsS2Ybq2Xndj9zB5PkKyS16JqWsvP8aQWELPkpBnTh6NUUFHmRqRxVpz3fT8S2ckHSRSQ8EDcS4ZifxwQsjWgJjn5GK
 ChildKey Public : xpub6Dq6DrkhVnTjU4KbUty2ujmm5pUDZStvkyFaEPVvPrQuFvuZ3meeJcWGJwjLjb666HDPxVg2SDTMuh6JVfP897z5VJxRoSf82koiPucLPDm
-Address: tp1qfqkaaq5qdyd80uvpv4crcd3caw0dc44xd0vuv2jzpn3ngmjsausjuj6x35
+Address: tp1ndh7g7xy48k52phkr3p37rnkazmc98zuv8fp38
 ```
 
 ## Key generation with env vars
@@ -32,12 +32,12 @@ $ MNEMONIC="fly fly comfort" PASSPHRASE="" HDPATH="m/44'/1'/0'/0'" HRP="tp" extk
 
 RootKey Private: xprv9s21ZrQH143K2gAYPH8TS4wyWvQ4F99jm7cHbckUwKwvk75QpVx6VmqqZxgUno53xUWNbhnUy83RnPqSCa7hfKQFzmp1Lcsv2pp2PikLtHU
 RootKey Public : xpub661MyMwAqRbcFAF1VJfToCti4xEYebsb8LXtQ1A6VfUucuQZN3GM3aAKREjZt3ZFhQB2M5Le1FEfuhVQRQ8DgvmPkLjgKPMAFo5X923Ut1B
-Address: tp1qv846qztsd2uwwrk9e2ve53wewnhnz3ry7vzhfqjlkl6cd8endm8xxln0sv
+Address: tp148sw6szwkk3cj5fdudzyhamkj3juy0wx0pj2c0
 
 Path: m/44'/1'/0'/0'
 ChildKey Private: xprv9zqjpMDofQu7oDsEZEoP8sFrrvqewMi4s8ntBLthjaGfnwe8sCXdjgqYH5HQZXDeHbtsS3mdqdkaFAGVNJ6Xde48hkUsfbtUsJTQKyvBVJv
 ChildKey Public : xpub6Dq6DrkhVnTR1hwhfGLPW1CbQxg9LpRvEMiUyjJKHuoefjyHQjqtHVA28NCY3YqM35fd1LyG5jkAaYZbHciHhDdJPxSux97o1nvBgvcww7o
-Address: tp1qvaurcy20khn6p8hqj6rm4fll8jvflwfs4d5z6ypskdnsz80ahf52mtue07
+Address: tp1wjccte6zcr0d9d8l5mjj5ju6rmlcywlt02tlpn
 ```
 
 # Decoding
@@ -50,9 +50,9 @@ HRP: tp
 Key Private: xprv9zqjpMDofQuSFaF8NsS2Ybq2Xndj9zB5PkKyS16JqWsvP8aQWELPkpBnTh6NUUFHmRqRxVpz3fT8S2ckHSRSQ8EDcS4ZifxwQsjWgJjn5GK
 Key Public : xpub6Dq6DrkhVnTjU4KbUty2ujmm5pUDZStvkyFaEPVvPrQuFvuZ3meeJcWGJwjLjb666HDPxVg2SDTMuh6JVfP897z5VJxRoSf82koiPucLPDm
 ChainCode  : F285FC31610476271F3EB344992EE7735D830235059FD301B1B5787A87A7B68F
-
+Fingerprint: 28508294
 Depth      : 4 (m/44/coin/account/*change/index)
-Address    : tp1qfqkaaq5qdyd80uvpv4crcd3caw0dc44xd0vuv2jzpn3ngmjsausjuj6x35
+Address    : tp1ndh7g7xy48k52phkr3p37rnkazmc98zuv8fp38
 ```
 
 ## Decoding xpub keys
@@ -63,7 +63,7 @@ HRP: tp
 Key Private: xpub6Dq6DrkhVnTjU4KbUty2ujmm5pUDZStvkyFaEPVvPrQuFvuZ3meeJcWGJwjLjb666HDPxVg2SDTMuh6JVfP897z5VJxRoSf82koiPucLPDm
 Key Public : xpub6Dq6DrkhVnTjU4KbUty2ujmm5pUDZStvkyFaEPVvPrQuFvuZ3meeJcWGJwjLjb666HDPxVg2SDTMuh6JVfP897z5VJxRoSf82koiPucLPDm
 ChainCode  : F285FC31610476271F3EB344992EE7735D830235059FD301B1B5787A87A7B68F
-
+Fingerprint: 28508294
 Depth      : 4 (m/44/coin/account/*change/index)
-Address    : tp1qfqkaaq5qdyd80uvpv4crcd3caw0dc44xd0vuv2jzpn3ngmjsausjuj6x35
+Address    : tp1ndh7g7xy48k52phkr3p37rnkazmc98zuv8fp38
 ```

cmd/extkey/main.go

@@ -41,10 +41,12 @@ func decode(xkey string) {
 	}
 
 	fmt.Println()
-	fmt.Printf("Key Private: %s\n", key.B58Serialize())
+	if key.IsPrivate {
+		fmt.Printf("Key Private: %s\n", key.B58Serialize())
+	}
 	fmt.Printf("Key Public : %s\n", key.PublicKey().B58Serialize())
 	fmt.Printf("ChainCode  : %X\n", key.ChainCode)
-	fmt.Println()
+	fmt.Printf("Fingerprint: %X\n", key.FingerPrint)
 	fmt.Printf("Depth      : %d (%s)\n", key.Depth, depthString(key.Depth))
 	fmt.Printf("Address    : %s\n", toAddress(hrp, key))
 }
@@ -130,7 +132,7 @@ func encode() {
 	}
 	for i, childIndex := range bip44Indexes {
 		if bip44Harden[i] {
-			childIndex |= 0x80000000
+			childIndex |= bip32.FirstHardenedChild
 		}
 		childKey, err = childKey.NewChildKey(childIndex)
 		if err != nil {